initial hack to accept Slic3r SVG

projectlayer.py

@@ -15,41 +15,62 @@
 
 import xml.etree.ElementTree
 import wx
-import time
+import svg.document as wxpsvgdocument
 
 def parsesvg(name):
     et= xml.etree.ElementTree.ElementTree(file=name)
+    #xml.etree.ElementTree.dump(et)
+    slicer = 'Slic3r' if et.getroot().find('{http://www.w3.org/2000/svg}metadata') == None else 'Skeinforge'
     zlast=0
     zdiff=0
     ol=[]
-    for i in et.findall("{http://www.w3.org/2000/svg}g")[0].findall("{http://www.w3.org/2000/svg}g"):
-        z=float(i.get('id').split("z:")[-1])
-        zdiff=z-zlast
-        zlast=z
-        path=i.find('{http://www.w3.org/2000/svg}path')
-        ol+=[(path.get("d").split("z"))[:-1]]
-    return ol,zdiff
+    if (slicer == 'Slic3r'):
+        height = et.getroot().get('height')
+        width = et.getroot().get('width')
+        
+        for i in et.findall("{http://www.w3.org/2000/svg}g"):
+            z=float(i.get('{http://slic3r.org/namespaces/slic3r}z'))
+            zdiff=z-zlast
+            zlast=z
+
+            svgSnippet = xml.etree.ElementTree.Element('{http://www.w3.org/2000/svg}svg')
+            svgSnippet.set('height', height+'mm')
+            svgSnippet.set('width', width+'mm')
+            svgSnippet.set('viewBox', '0 0 '+height+' '+width)
+            svgSnippet.append(i)
+
+            ol+=[svgSnippet]
+    else :
+        for i in et.findall("{http://www.w3.org/2000/svg}g")[0].findall("{http://www.w3.org/2000/svg}g"):
+            z=float(i.get('id').split("z:")[-1])
+            zdiff=z-zlast
+            zlast=z
+            path=i.find('{http://www.w3.org/2000/svg}path')
+            ol+=[(path.get("d").split("z"))[:-1]]
+    return ol,zdiff,slicer
     
 
 class dispframe(wx.Frame):
-    def __init__(self, parent, title, res=(1600,1200),printer=None):
+    def __init__(self, parent, title, res=(800,600),printer=None):
         wx.Frame.__init__(self, parent=parent, title=title)
         self.p=printer
         self.pic=wx.StaticBitmap(self)
         self.bitmap=wx.EmptyBitmap(*res)
         self.bbitmap=wx.EmptyBitmap(*res)
+        self.slicer='Skeinforge'
         dc=wx.MemoryDC()
         dc.SelectObject(self.bbitmap)
         dc.SetBackground(wx.Brush("black"))
         dc.Clear()
         dc.SelectObject(wx.NullBitmap)
-            
+
         self.SetBackgroundColour("black")
         self.pic.Hide()
         self.pen=wx.Pen("white")
         self.brush=wx.Brush("white")
         self.SetDoubleBuffered(True)
         self.Show()
+
     def drawlayer(self,svg):
         try:
             dc=wx.MemoryDC()
@@ -58,18 +79,22 @@ class dispframe(wx.Frame):
             dc.Clear()
             dc.SetPen(self.pen)
             dc.SetBrush(self.brush)
-            for i in svg:
-                #print i
-                points=[wx.Point(*map(lambda x:int(round(float(x)*self.scale)),j.strip().split())) for j in i.strip().split("M")[1].split("L")]
-                dc.DrawPolygon(points,self.size[0]/2,self.size[1]/2)
-                    
-                
-            dc.SelectObject(wx.NullBitmap)
+
+            if self.slicer == 'Skeinforge':
+                for i in svg:
+                    #print i
+                    points=[wx.Point(*map(lambda x:int(round(float(x)*self.scale)),j.strip().split())) for j in i.strip().split("M")[1].split("L")]
+                    dc.DrawPolygon(points,self.size[0]/2,self.size[1]/2)
+            else:
+                gc = wx.GraphicsContext_Create(dc)            
+                gc.Translate(*self.offset)
+                gc.Scale(self.scale, self.scale)
+                wxpsvgdocument.SVGDocument(svg).render(gc)
+            
             self.pic.SetBitmap(self.bitmap)
             self.pic.Show()
             self.Refresh()
             
-            #self.pic.SetBitmap(self.bitmap)
             
         except:
             raise
@@ -79,19 +104,18 @@ class dispframe(wx.Frame):
         self.drawlayer(image)
         self.pic.Show()
         self.Refresh()
-        #    time.sleep(self.interval)
-        #self.pic.Hide()
+
         self.Refresh()
-        if self.p!=None and self.p.online:
+        if self.p != None and self.p.online:
                 self.p.send_now("G91")
                 self.p.send_now("G1 Z%f F300"%(self.thickness,))
                 self.p.send_now("G90")
             
     def nextimg(self,event):
-        #print "b"
+
         if self.index<len(self.layers):
             i=self.index
-            #print self.layers[i]
+
             print i
             wx.CallAfter(self.showimgdelay,self.layers[i])
             wx.FutureCall(1000*self.interval,self.pic.Hide)
@@ -104,7 +128,7 @@ class dispframe(wx.Frame):
             wx.CallAfter(self.timer.Stop)
             
         
-    def present(self,layers,interval=0.5,pause=0.2,thickness=0.4,scale=20,size=(800,600)):
+    def present(self,layers,interval=0.5,pause=0.2,thickness=0.4,scale=20,size=(800,600),offset=(0,0)):
         wx.CallAfter(self.pic.Hide)
         wx.CallAfter(self.Refresh)
         self.layers=layers
@@ -113,12 +137,11 @@ class dispframe(wx.Frame):
         self.index=0
         self.size=size
         self.interval=interval
+        self.offset=offset
         self.timer=wx.Timer(self,1)
         self.timer.Bind(wx.EVT_TIMER,self.nextimg)
         self.Bind(wx.EVT_TIMER,self.nextimg)
         self.timer.Start(1000*interval+1000*pause)
-        #print "x"
-
 
 class setframe(wx.Frame):
     
@@ -129,29 +152,43 @@ class setframe(wx.Frame):
         self.panel.SetBackgroundColour("orange")
         self.bload=wx.Button(self.panel,-1,"Load",pos=(0,0))
         self.bload.Bind(wx.EVT_BUTTON,self.loadfile)
+
         wx.StaticText(self.panel,-1,"Layer:",pos=(0,30))
         wx.StaticText(self.panel,-1,"mm",pos=(130,30))
         self.thickness=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,30))
+
         wx.StaticText(self.panel,-1,"Exposure:",pos=(0,60))
         wx.StaticText(self.panel,-1,"s",pos=(130,60))
         self.interval=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,60))
+
         wx.StaticText(self.panel,-1,"Blank:",pos=(0,90))
         wx.StaticText(self.panel,-1,"s",pos=(130,90))
         self.delay=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,90))
+
         wx.StaticText(self.panel,-1,"Scale:",pos=(0,120))
         wx.StaticText(self.panel,-1,"x",pos=(130,120))
         self.scale=wx.TextCtrl(self.panel,-1,"5",pos=(50,120))
+
         wx.StaticText(self.panel,-1,"X:",pos=(160,30))
-        self.X=wx.TextCtrl(self.panel,-1,"1024",pos=(180,30))
+        self.X=wx.TextCtrl(self.panel,-1,"1024",pos=(210,30))
+
         wx.StaticText(self.panel,-1,"Y:",pos=(160,60))
-        self.Y=wx.TextCtrl(self.panel,-1,"768",pos=(180,60))
+        self.Y=wx.TextCtrl(self.panel,-1,"768",pos=(210,60))
+        
+        wx.StaticText(self.panel,-1,"OffsetX:",pos=(160,90))
+        self.offsetX=wx.TextCtrl(self.panel,-1,"50",pos=(210,90))
+
+        wx.StaticText(self.panel,-1,"OffsetY:",pos=(160,120))
+        self.offsetY=wx.TextCtrl(self.panel,-1,"50",pos=(210,120))
+        
         self.bload=wx.Button(self.panel,-1,"Present",pos=(0,150))
         self.bload.Bind(wx.EVT_BUTTON,self.startdisplay)
         self.Show()
+
         
     def loadfile(self,event):
         dlg=wx.FileDialog(self,("Open file to print"),style=wx.FD_OPEN|wx.FD_FILE_MUST_EXIST)
-        dlg.SetWildcard(("Skeinforge svg files (;*.svg;*.SVG;)"))
+        dlg.SetWildcard(("Slic3r or Skeinforge svg files (;*.svg;*.SVG;)"))
         if(dlg.ShowModal() == wx.ID_OK):
             name=dlg.GetPath()
             import os
@@ -162,6 +199,7 @@ class setframe(wx.Frame):
             print "Layer thickness detected:",layers[1], "mm"
             print len(layers[0]), "layers found, total height", layers[1]*len(layers[0]), "mm"
             self.thickness.SetValue(str(layers[1]))
+            self.f.slicer = layers[2]
             self.layers=layers
         dlg.Destroy()
 
@@ -169,11 +207,15 @@ class setframe(wx.Frame):
         self.f.Raise()
         self.f.ShowFullScreen(1)
         l=self.layers[0][:]
-        #l=list(reversed(l))
-        self.f.present(l,thickness=float(self.thickness.GetValue()),interval=float(self.interval.GetValue()),scale=float(self.scale.GetValue()),pause=float(self.delay.GetValue()), size=(float(self.X.GetValue()),float(self.Y.GetValue())))
+        self.f.present(l,
+            thickness=float(self.thickness.GetValue()),
+            interval=float(self.interval.GetValue()),
+            scale=float(self.scale.GetValue()),
+            pause=float(self.delay.GetValue()), 
+            size=(float(self.X.GetValue()),float(self.Y.GetValue())),
+            offset=(float(self.offsetX.GetValue()),float(self.offsetY.GetValue())))
 
 if __name__=="__main__":
     a=wx.App()
     setframe(None).Show()
     a.MainLoop()
-    

svg/__init__.py

@@ -0,0 +1,43 @@
+"""
+
+"""
+
+import wx
+
+def AddEllipticalArc(self, x, y, w, h, startAngle, endAngle, clockwise=False):
+    """ Draws an arc of an ellipse within bounding rect (x,y,w,h) 
+    from startArc to endArc (in radians, relative to the horizontal line of the eclipse)"""
+    
+    if True:
+        import warnings
+        warnings.warn("elliptical arcs are not supported")
+        w = w/2.0
+        h = h/2.0
+        self.AddArc(x+w, y+h, ((w+h)/2), startAngle, endAngle, clockwise)
+        return
+    else:    
+        #implement in terms of AddArc by applying a transformation matrix
+        #Sigh this can't work, still need to patch wx to allow
+        #either a) AddPath that's not a closed path or
+        #b) allow pushing and popping of states on a path, not just on a context
+        #a) is possible in GDI+, need to investigate other renderers.
+        #b) is possible in Quartz and Cairo, but not in GDI+. It could
+        #possibly be simulated by combining the current transform with option a.
+        mtx = wx.GraphicsRenderer_GetDefaultRenderer().CreateMatrix()
+        path = wx.GraphicsRenderer_GetDefaultRenderer().CreatePath()
+            
+
+        mtx.Translate(x+(w/2.0), y+(h/2.0))
+        mtx.Scale(w/2.0, y/2.0)
+        
+        path.AddArc(0, 0, 1, startAngle, endAngle, clockwise)
+        path.Transform(mtx)
+        self.AddPath(path)
+        self.MoveToPoint(path.GetCurrentPoint())
+        self.CloseSubpath()
+    
+if not hasattr(wx.GraphicsPath, "AddEllipticalArc"):
+    wx.GraphicsPath.AddEllipticalArc = AddEllipticalArc
+
+del AddEllipticalArc
+    

svg/attributes.py

@@ -0,0 +1,44 @@
+"""
+    Parsers for specific attributes
+"""
+import urlparse
+from pyparsing import (Literal, 
+    Optional, oneOf, Group, StringEnd, Combine, Word, alphas, hexnums,
+    CaselessLiteral, SkipTo
+)
+from css.colour import colourValue
+import string
+
+##Paint values
+none = CaselessLiteral("none").setParseAction(lambda t: ["NONE", ()])
+currentColor = CaselessLiteral("currentColor").setParseAction(lambda t: ["CURRENTCOLOR", ()])
+
+def parsePossibleURL(t):
+    possibleURL, fallback = t[0]
+    return [urlparse.urlsplit(possibleURL), fallback]
+
+#Normal color declaration
+colorDeclaration = none | currentColor | colourValue
+
+urlEnd = (
+    Literal(")").suppress() + 
+    Optional(Group(colorDeclaration), default=()) + 
+    StringEnd()
+)
+
+url = (
+    CaselessLiteral("URL")
+    + 
+    Literal("(").suppress()+
+    Group(SkipTo(urlEnd, include=True).setParseAction(parsePossibleURL))
+)
+
+#paint value will parse into a (type, details) tuple.
+#For none and currentColor, the details tuple will be the empty tuple
+#for CSS color declarations, it will be (type, (R,G,B))
+#for URLs, it will be ("URL", ((url tuple), fallback))
+#The url tuple will be as returned by urlparse.urlsplit, and can be 
+#an empty tuple if the parser has an error
+#The fallback will be another (type, details) tuple as a parsed
+#colorDeclaration, but may be the empty tuple if it is not present
+paintValue = url | colorDeclaration

svg/css/__init__.py

@@ -0,0 +1,3 @@
+from __future__ import absolute_import
+from .transform import transformList
+from .inline import inlineStyle

svg/css/atrule.py

@@ -0,0 +1,6 @@
+""" CSS at-rules"""
+
+from pyparsing import Literal, Combine
+from .identifier import identifier
+
+atkeyword = Combine(Literal("@") + identifier)

svg/css/block.py

@@ -0,0 +1,8 @@
+"""
+    CSS blocks
+"""
+
+from pyparsing import nestedExpr
+
+block = nestedExpr(opener="{", closer="}")
+

svg/css/colour.py

@@ -0,0 +1,283 @@
+"""
+    Parsing for CSS colour values.
+    Supported formats:
+        hex literal short: #fff
+        hex literal long: #fafafa
+        rgb bytes: rgb(255,100,0)
+        rgb percent: rgb(100%,100%,0%)
+        named color: black
+"""
+import wx
+import string
+import urlparse
+from pyparsing import nums, Literal, Optional, oneOf, Group, StringEnd, Combine, Word, alphas, hexnums
+from ..pathdata import number, sign
+
+number = number.copy()
+integerConstant = Word(nums+"+-").setParseAction(lambda t:int(t[0]))
+
+#rgb format parser
+comma = Literal(",").suppress()
+def clampColourByte(val):
+    val = int(val)
+    return min(max(0,val), 255)
+    
+def clampColourPerc(val):
+    val = float(val)
+    return min(max(0,val), 100)
+    
+def parseColorPerc(token):
+    val = token[0]
+    val = clampColourPerc(val)
+    #normalize to bytes
+    return int(255 * (val / 100.0))
+    
+
+colorByte = Optional(sign) + integerConstant.setParseAction(lambda t: clampColourByte(t[0]))
+colorPerc = number.setParseAction(parseColorPerc) + Literal("%").suppress()
+
+rgb = (
+    Literal("rgb(").setParseAction(lambda t: "RGB") + 
+    
+    (
+    #integer constants, ie 255,255,255
+    Group(colorByte + comma + colorByte + comma + colorByte) ^
+    #percentage values, ie 100%, 50%
+    Group(colorPerc + comma + colorPerc + comma + colorPerc)
+    )
+    + 
+    Literal(")").suppress() + StringEnd()
+)
+
+def parseShortHex(t):
+    return tuple(int(x*2, 16) for x in t[0])
+
+
+doubleHex = Word(hexnums, exact=2).setParseAction(lambda t: int(t[0], 16))
+hexLiteral = (Literal("#").setParseAction(lambda t: "RGB") + 
+    (
+    Group(doubleHex + doubleHex + doubleHex) |
+    Word(hexnums, exact=3).setParseAction(parseShortHex) 
+    ) + StringEnd()
+)
+
+def parseNamedColour(t):
+    try:
+        return ["RGB", NamedColours[t[0].lower()]]
+    except KeyError:
+        return ["RGB", (0,0,0)]
+    
+namedColour = Word(alphas).setParseAction(parseNamedColour)
+
+
+colourValue = rgb | hexLiteral | namedColour
+
+
+##constants
+NamedColours = {
+    #~ #html named colours
+    #~ "black":(0,0,0),
+    #~ "silver": (0xc0, 0xc0, 0xc0, 255),
+    #~ "gray": (0x80, 0x80, 0x80),
+    #~ "white":(255,255,255),
+    #~ "maroon":(0x80, 0, 0),
+    #~ "red":(0xff, 0, 0),
+    #~ "purple":(0x80, 0, 0x80),
+    #~ "fuchsia":(0xff, 0, 0xff),
+    #~ "green": (0, 0x80, 0),
+    #~ "lime": (0, 0xff, 0),
+    #~ "olive": (0x80, 0x80, 00),
+    #~ "yellow":(0xff, 0xff, 00),
+    #~ "navy": (0, 0, 0x80),
+    #~ "blue": (0, 0, 0xff),
+    #~ "teal": (0, 0x80, 0x80),
+    #~ "aqua": (0, 0xff, 0xff),
+    #expanded named colors from SVG spc
+    'aliceblue' : (240, 248, 255) ,
+    'antiquewhite' : (250, 235, 215) ,
+    'aqua' : ( 0, 255, 255) ,
+    'aquamarine' : (127, 255, 212) ,
+    'azure' : (240, 255, 255) ,
+    'beige' : (245, 245, 220) ,
+    'bisque' : (255, 228, 196) ,
+    'black' : ( 0, 0, 0) ,
+    'blanchedalmond' : (255, 235, 205) ,
+    'blue' : ( 0, 0, 255) ,
+    'blueviolet' : (138, 43, 226) ,
+    'brown' : (165, 42, 42) ,
+    'burlywood' : (222, 184, 135) ,
+    'cadetblue' : ( 95, 158, 160) ,
+    'chartreuse' : (127, 255, 0) ,
+    'chocolate' : (210, 105, 30) ,
+    'coral' : (255, 127, 80) ,
+    'cornflowerblue' : (100, 149, 237) ,
+    'cornsilk' : (255, 248, 220) ,
+    'crimson' : (220, 20, 60) ,
+    'cyan' : ( 0, 255, 255) ,
+    'darkblue' : ( 0, 0, 139) ,
+    'darkcyan' : ( 0, 139, 139) ,
+    'darkgoldenrod' : (184, 134, 11) ,
+    'darkgray' : (169, 169, 169) ,
+    'darkgreen' : ( 0, 100, 0) ,
+    'darkgrey' : (169, 169, 169) ,
+    'darkkhaki' : (189, 183, 107) ,
+    'darkmagenta' : (139, 0, 139) ,
+    'darkolivegreen' : ( 85, 107, 47) ,
+    'darkorange' : (255, 140, 0) ,
+    'darkorchid' : (153, 50, 204) ,
+    'darkred' : (139, 0, 0) ,
+    'darksalmon' : (233, 150, 122) ,
+    'darkseagreen' : (143, 188, 143) ,
+    'darkslateblue' : ( 72, 61, 139) ,
+    'darkslategray' : ( 47, 79, 79) ,
+    'darkslategrey' : ( 47, 79, 79) ,
+    'darkturquoise' : ( 0, 206, 209) ,
+    'darkviolet' : (148, 0, 211) ,
+    'deeppink' : (255, 20, 147) ,
+    'deepskyblue' : ( 0, 191, 255) ,
+    'dimgray' : (105, 105, 105) ,
+    'dimgrey' : (105, 105, 105) ,
+    'dodgerblue' : ( 30, 144, 255) ,
+    'firebrick' : (178, 34, 34) ,
+    'floralwhite' : (255, 250, 240) ,
+    'forestgreen' : ( 34, 139, 34) ,
+    'fuchsia' : (255, 0, 255) ,
+    'gainsboro' : (220, 220, 220) ,
+    'ghostwhite' : (248, 248, 255) ,
+    'gold' : (255, 215, 0) ,
+    'goldenrod' : (218, 165, 32) ,
+    'gray' : (128, 128, 128) ,
+    'grey' : (128, 128, 128) ,
+    'green' : ( 0, 128, 0) ,
+    'greenyellow' : (173, 255, 47) ,
+    'honeydew' : (240, 255, 240) ,
+    'hotpink' : (255, 105, 180) ,
+    'indianred' : (205, 92, 92) ,
+    'indigo' : ( 75, 0, 130) ,
+    'ivory' : (255, 255, 240) ,
+    'khaki' : (240, 230, 140) ,
+    'lavender' : (230, 230, 250) ,
+    'lavenderblush' : (255, 240, 245) ,
+    'lawngreen' : (124, 252, 0) ,
+    'lemonchiffon' : (255, 250, 205) ,
+    'lightblue' : (173, 216, 230) ,
+    'lightcoral' : (240, 128, 128) ,
+    'lightcyan' : (224, 255, 255) ,
+    'lightgoldenrodyellow' : (250, 250, 210) ,
+    'lightgray' : (211, 211, 211) ,
+    'lightgreen' : (144, 238, 144) ,
+    'lightgrey' : (211, 211, 211) ,
+    'lightpink' : (255, 182, 193) ,
+    'lightsalmon' : (255, 160, 122) ,
+    'lightseagreen' : ( 32, 178, 170) ,
+    'lightskyblue' : (135, 206, 250) ,
+    'lightslategray' : (119, 136, 153) ,
+    'lightslategrey' : (119, 136, 153) ,
+    'lightsteelblue' : (176, 196, 222) ,
+    'lightyellow' : (255, 255, 224) ,
+    'lime' : ( 0, 255, 0) ,
+    'limegreen' : ( 50, 205, 50) ,
+    'linen' : (250, 240, 230) ,
+    'magenta' : (255, 0, 255) ,
+    'maroon' : (128, 0, 0) ,
+    'mediumaquamarine' : (102, 205, 170) ,
+    'mediumblue' : ( 0, 0, 205) ,
+    'mediumorchid' : (186, 85, 211) ,
+    'mediumpurple' : (147, 112, 219) ,
+    'mediumseagreen' : ( 60, 179, 113) ,
+    'mediumslateblue' : (123, 104, 238) ,
+    'mediumspringgreen' : ( 0, 250, 154) ,
+    'mediumturquoise' : ( 72, 209, 204) ,
+    'mediumvioletred' : (199, 21, 133) ,
+    'midnightblue' : ( 25, 25, 112) ,
+    'mintcream' : (245, 255, 250) ,
+    'mistyrose' : (255, 228, 225) ,
+    'moccasin' : (255, 228, 181) ,
+    'navajowhite' : (255, 222, 173) ,
+    'navy' : ( 0, 0, 128) ,
+    'oldlace' : (253, 245, 230) ,
+    'olive' : (128, 128, 0) ,
+    'olivedrab' : (107, 142, 35) ,
+    'orange' : (255, 165, 0) ,
+    'orangered' : (255, 69, 0) ,
+    'orchid' : (218, 112, 214) ,
+    'palegoldenrod' : (238, 232, 170) ,
+    'palegreen' : (152, 251, 152) ,
+    'paleturquoise' : (175, 238, 238) ,
+    'palevioletred' : (219, 112, 147) ,
+    'papayawhip' : (255, 239, 213) ,
+    'peachpuff' : (255, 218, 185) ,
+    'peru' : (205, 133, 63) ,
+    'pink' : (255, 192, 203) ,
+    'plum' : (221, 160, 221) ,
+    'powderblue' : (176, 224, 230) ,
+    'purple' : (128, 0, 128) ,
+    'red' : (255, 0, 0) ,
+    'rosybrown' : (188, 143, 143) ,
+    'royalblue' : ( 65, 105, 225) ,
+    'saddlebrown' : (139, 69, 19) ,
+    'salmon' : (250, 128, 114) ,
+    'sandybrown' : (244, 164, 96) ,
+    'seagreen' : ( 46, 139, 87) ,
+    'seashell' : (255, 245, 238) ,
+    'sienna' : (160, 82, 45) ,
+    'silver' : (192, 192, 192) ,
+    'skyblue' : (135, 206, 235) ,
+    'slateblue' : (106, 90, 205) ,
+    'slategray' : (112, 128, 144) ,
+    'slategrey' : (112, 128, 144) ,
+    'snow' : (255, 250, 250) ,
+    'springgreen' : ( 0, 255, 127) ,
+    'steelblue' : ( 70, 130, 180) ,
+    'tan' : (210, 180, 140) ,
+    'teal' : ( 0, 128, 128) ,
+    'thistle' : (216, 191, 216) ,
+    'tomato' : (255, 99, 71) ,
+    'turquoise' : ( 64, 224, 208) ,
+    'violet' : (238, 130, 238) ,
+    'wheat' : (245, 222, 179) ,
+    'white' : (255, 255, 255) ,
+    'whitesmoke' : (245, 245, 245) ,
+    'yellow' : (255, 255, 0) ,
+    'yellowgreen' : (154, 205, 50) ,
+}
+
+
+
+def fillCSS2SystemColours():
+    #The system colours require a wxApp to be present to retrieve,
+    #so if you wnat support for them you'll need 
+    #to call this function after your wxApp instance starts
+    systemColors = {
+        "ActiveBorder": wx.SYS_COLOUR_ACTIVEBORDER,
+        "ActiveCaption": wx.SYS_COLOUR_ACTIVECAPTION,
+        "AppWorkspace": wx.SYS_COLOUR_APPWORKSPACE,
+        "Background": wx.SYS_COLOUR_BACKGROUND,
+        "ButtonFace": wx.SYS_COLOUR_BTNFACE,
+        "ButtonHighlight": wx.SYS_COLOUR_BTNHIGHLIGHT,
+        "ButtonShadow": wx.SYS_COLOUR_BTNSHADOW,
+        "ButtonText": wx.SYS_COLOUR_BTNTEXT,
+        "CaptionText": wx.SYS_COLOUR_CAPTIONTEXT,
+        "GrayText": wx.SYS_COLOUR_GRAYTEXT,
+        "Highlight": wx.SYS_COLOUR_HIGHLIGHT,
+        "HighlightText": wx.SYS_COLOUR_HIGHLIGHTTEXT,
+        "InactiveBorder": wx.SYS_COLOUR_INACTIVEBORDER,
+        "InactiveCaption": wx.SYS_COLOUR_INACTIVECAPTION,
+        "InfoBackground": wx.SYS_COLOUR_INFOBK,
+        "InfoText": wx.SYS_COLOUR_INFOTEXT,
+        "Menu": wx.SYS_COLOUR_MENU,
+        "MenuText": wx.SYS_COLOUR_MENUTEXT,
+        "Scrollbar": wx.SYS_COLOUR_SCROLLBAR,
+        "ThreeDDarkShadow": wx.SYS_COLOUR_3DDKSHADOW,
+        "ThreeDFace": wx.SYS_COLOUR_3DFACE,
+        "ThreeDHighlight": wx.SYS_COLOUR_3DHIGHLIGHT,
+        "ThreeDLightShadow": wx.SYS_COLOUR_3DLIGHT,
+        "ThreeDShadow": wx.SYS_COLOUR_3DSHADOW,
+        "Window": wx.SYS_COLOUR_WINDOW,
+        "WindowFrame": wx.SYS_COLOUR_WINDOWFRAME,
+        "WindowText": wx.SYS_COLOUR_WINDOWTEXT
+    }
+    NamedColours.update(
+        #strip the alpha from the system colors. Is this really what we want to do?
+        (k.lower(), wx.SystemSettings.GetColour(v)[:3]) for (k,v) in systemColors.iteritems()
+    )

svg/css/identifier.py

@@ -0,0 +1,37 @@
+""" Parse CSS identifiers. More complicated than it sounds"""
+
+from pyparsing import Word, Literal, Regex, Combine, Optional, White, oneOf, ZeroOrMore
+import string
+import re
+
+class White(White):
+    """ Customize whitespace to match the CSS spec values"""
+    def __init__(self, ws=" \t\r\n\f", min=1, max=0, exact=0):
+        super(White, self).__init__(ws, min, max, exact)
+
+escaped = (
+    Literal("\\").suppress() + 
+    #chr(20)-chr(126) + chr(128)-unichr(sys.maxunicode)
+    Regex(u"[\u0020-\u007e\u0080-\uffff]", re.IGNORECASE)
+)
+
+def convertToUnicode(t):
+    return unichr(int(t[0], 16))
+hex_unicode = (
+    Literal("\\").suppress() + 
+    Regex("[0-9a-f]{1,6}", re.IGNORECASE) +
+    Optional(White(exact=1)).suppress()
+).setParseAction(convertToUnicode)
+
+
+escape = hex_unicode | escaped
+
+#any unicode literal outside the 0-127 ascii range
+nonascii = Regex(u"[^\u0000-\u007f]")
+
+#single character for starting an identifier. 
+nmstart = Regex(u"[A-Z]", re.IGNORECASE) | nonascii | escape
+
+nmchar = Regex(u"[0-9A-Z-]", re.IGNORECASE) | nonascii | escape
+
+identifier = Combine(nmstart + ZeroOrMore(nmchar))

svg/css/inline.py

@@ -0,0 +1,8 @@
+""" Parser for inline CSS in style attributes """
+
+def inlineStyle(styleString):
+    if not styleString:
+        return {}
+    styles = styleString.split(";")
+    rv = dict(style.split(":") for style in styles if len(style) != 0)
+    return rv

svg/css/transform.py

@@ -0,0 +1,51 @@
+"""
+    Parsing for CSS and CSS-style values, such as transform and filter attributes.
+"""
+
+from pyparsing import (Literal, Word, CaselessLiteral,
+    Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, delimitedList)
+
+#some shared definitions from pathdata
+
+from ..pathdata import number, maybeComma
+
+paren = Literal("(").suppress()
+cparen = Literal(")").suppress()
+
+def Parenthised(exp):
+    return Group(paren + exp + cparen)
+
+skewY = Literal("skewY") + Parenthised(number)
+
+skewX = Literal("skewX") + Parenthised(number)
+
+rotate = Literal("rotate") + Parenthised(
+    number + Optional(maybeComma + number + maybeComma + number)
+)
+
+
+scale = Literal("scale") + Parenthised(
+    number + Optional(maybeComma + number)
+)
+
+translate = Literal("translate") + Parenthised(
+    number + Optional(maybeComma + number)
+)
+
+matrix = Literal("matrix") + Parenthised(
+    #there's got to be a better way to write this
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number
+)
+
+transform = (skewY | skewX | rotate | scale | translate | matrix)
+
+transformList = delimitedList(Group(transform), delim=maybeComma)
+
+if __name__ == '__main__':
+    from tests.test_css import *
+    unittest.main()

svg/css/values.py

@@ -0,0 +1,46 @@
+"""
+Parser for various kinds of CSS values as per CSS2 spec section 4.3
+"""
+from pyparsing import Word, Combine, Optional, Literal, oneOf, CaselessLiteral, StringEnd
+
+def asInt(s,l,t):
+    return int(t[0])
+
+def asFloat(s,l,t):
+    return float(t[0])
+
+def asFloatOrInt(s,l,t):
+    """ Return an int if possible, otherwise a float"""
+    v = t[0]
+    try:
+        return int(v)
+    except ValueError:
+        return float(v)
+
+integer = Word("0123456789").setParseAction(asInt)
+
+number = Combine(
+    Optional(Word("0123456789")) + Literal(".") + Word("01234567890")
+    | integer
+)
+number.setName('number')
+
+
+sign = oneOf("+ -")
+
+signedNumber = Combine(Optional(sign) + number).setParseAction(asFloat)
+
+lengthValue = Combine(Optional(sign) + number).setParseAction(asFloatOrInt)
+lengthValue.setName('lengthValue')
+
+
+#TODO: The physical units like in, mm
+lengthUnit = oneOf(['em', 'ex', 'px', 'pt', '%'], caseless=True)
+#the spec says that the unit is only optional for a 0 length, but
+#there are just too many places where a default is permitted.
+#TODO: Maybe should use a ctor like optional to let clients declare it?
+length = lengthValue + Optional(lengthUnit, default=None) + StringEnd()
+length.leaveWhitespace()
+
+#set the parse action aftward so it doesn't "infect" the parsers that build on it
+number.setParseAction(asFloat)

svg/document.py

@@ -0,0 +1,715 @@
+"""
+    SVGDocument
+"""
+import wx
+
+from cStringIO import StringIO
+import warnings
+import math
+from functools import wraps
+
+import pathdata
+import css
+from svg.css.colour import colourValue
+from svg.css import values
+from attributes import paintValue
+
+document = """<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
+  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg width="4cm" height="4cm" viewBox="0 0 400 400"
+     xmlns="http://www.w3.org/2000/svg" version="1.1">
+  <title>Example triangle01- simple example of a 'path'</title>
+  <desc>A path that draws a triangle</desc>
+  <rect x="1" y="1" width="398" height="398"
+        fill="none" stroke="blue" />
+  <path d="M 100 100 L 300 100 L 200 300 z"
+        fill="red" stroke="blue" stroke-width="3" />
+</svg>"""
+
+makePath = lambda: wx.GraphicsRenderer_GetDefaultRenderer().CreatePath()
+
+def attrAsFloat(node, attr, defaultValue="0"):
+    val = node.get(attr, defaultValue)
+    #TODO: process stuff like "inherit" by walking back up the nodes
+    #fast path optimization - if it's a valid float, don't
+    #try to parse it.
+    try:
+        return float(val)
+    except ValueError:
+        return valueToPixels(val)
+    
+def valueToPixels(val, defaultUnits="px"):
+    #TODO manage default units
+    from pyparsing import ParseException
+    try:
+        val, unit = values.length.parseString(val)
+    except ParseException:
+        print "***", val
+        raise
+    #todo: unit conversion to something other than pixels
+    return val
+
+
+def pathHandler(func):
+    """decorator for methods which return a path operation
+        Creates the path they will fill,
+        and generates the path operations for the node
+    """
+    @wraps(func)
+    def inner(self, node):
+        #brush = self.getBrushFromState()
+        #pen = self.getPenFromState()
+        #if not (brush or pen):
+        #    return None, []
+        path = wx.GraphicsRenderer_GetDefaultRenderer().CreatePath()
+        func(self, node, path)
+        ops = self.generatePathOps(path)
+        return path, ops
+    return inner
+        
+
+class SVGDocument(object):
+    lastControl = None
+    brushCache = {}
+    penCache = {}
+    def __init__(self, element):
+        """
+        Create an SVG document from an ElementTree node.
+        """
+        self.handlers = {
+            '{http://www.w3.org/2000/svg}svg':self.addGroupToDocument,
+            '{http://www.w3.org/2000/svg}a':self.addGroupToDocument,
+            '{http://www.w3.org/2000/svg}g':self.addGroupToDocument,
+            '{http://www.w3.org/2000/svg}rect':self.addRectToDocument,
+            '{http://www.w3.org/2000/svg}circle': self.addCircleToDocument,
+            '{http://www.w3.org/2000/svg}ellipse': self.addEllipseToDocument,
+            '{http://www.w3.org/2000/svg}line': self.addLineToDocument,
+            '{http://www.w3.org/2000/svg}polyline': self.addPolyLineToDocument,
+            '{http://www.w3.org/2000/svg}polygon': self.addPolygonToDocument,
+            '{http://www.w3.org/2000/svg}path':self.addPathDataToDocument,
+            '{http://www.w3.org/2000/svg}text':self.addTextToDocument
+        }
+
+        assert element.tag == '{http://www.w3.org/2000/svg}svg', 'Not an SVG fragment'
+        self.tree = element
+        self.paths = {}
+        self.stateStack = [{}]
+        path, ops = self.processElement(element)
+        self.ops = ops
+
+    @property
+    def state(self):
+        """ Retrieve the current state, without popping"""
+        return self.stateStack[-1]
+        
+    def processElement(self, element):
+        """ Process one element of the XML tree.
+        Returns the path representing the node,
+        and an operation list for drawing the node.
+        
+        Parent nodes should return a path (for hittesting), but
+        no draw operations
+        """
+        #copy the current state
+        current = dict(self.state)
+        current.update(element.items())
+        current.update(css.inlineStyle(element.get("style", "")))
+        self.stateStack.append(current)
+        handler = self.handlers.get(element.tag, lambda *any: (None, None))
+        path, ops = handler(element)
+        self.paths[element] = path
+        self.stateStack.pop()
+        return path, ops
+
+    def createTransformOpsFromNode(self, node):
+        """ Returns an oplist for transformations.
+        This applies to a node, not the current state because
+        the transform stack is saved in the wxGraphicsContext.
+        
+        This oplist does *not* include the push/pop state commands
+        """
+        ops = []
+        transform = node.get('transform')
+        #todo: replace this with a mapping list
+        if transform:
+            for transform, args in css.transformList.parseString(transform):
+                if transform == 'scale':
+                    if len(args) == 1:
+                        x = y = args[0]
+                    else:
+                        x, y = args
+                    ops.append(
+                        (wx.GraphicsContext.Scale, (x, y))
+                    )
+                if transform == 'translate':
+                    if len(args) == 1:
+                        x = args[0]
+                        y = 0
+                    else:
+                        x, y = args
+                    ops.append(
+                        (wx.GraphicsContext.Translate, (x, y))
+                    )
+                if transform == 'rotate':
+                    if len(args) == 3:
+                        angle, cx, cy = args
+                        angle = math.radians(angle)
+                        ops.extend([
+                            (wx.GraphicsContext.Translate, (cx, cy)),
+                            (wx.GraphicsContext.Rotate, (angle,)),
+                            (wx.GraphicsContext.Translate, (-cx, -cy)),
+                        ])
+                    else:
+                        angle = args[0]
+                        angle = math.radians(angle)
+                        ops.append(
+                            (wx.GraphicsContext.Rotate, (angle,))
+                        )
+                if transform == 'matrix':
+                    matrix = wx.GraphicsRenderer_GetDefaultRenderer().CreateMatrix(
+                        *args
+                    )
+                    ops.append(
+                        (wx.GraphicsContext.ConcatTransform, (matrix,))
+                    )
+                if transform == 'skewX':
+                    matrix = wx.GraphicsRenderer_GetDefaultRenderer().CreateMatrix(
+                        1,0,math.tan(math.radians(args[0])),1,0,0
+                    )
+                    ops.append(
+                        (wx.GraphicsContext.ConcatTransform, (matrix,))
+                    )
+                if transform == 'skewY':
+                    matrix = wx.GraphicsRenderer_GetDefaultRenderer().CreateMatrix(
+                        1,math.tan(math.radians(args[0])),0,1,0,0
+                    )
+                    ops.append(
+                        (wx.GraphicsContext.ConcatTransform, (matrix,))
+                    )
+        return ops
+        
+    
+    def addGroupToDocument(self, node):
+        """ For parent elements: push on a state,
+        then process all child elements
+        """
+        ops = [
+            (wx.GraphicsContext.PushState, ())
+        ]
+        
+        path = makePath()
+        ops.extend(self.createTransformOpsFromNode(node))
+        for child in node.getchildren():
+            cpath, cops = self.processElement(child)
+            if cpath:
+                path.AddPath(cpath)
+            if cops:
+                ops.extend(cops)
+        ops.append(
+            (wx.GraphicsContext.PopState, ())
+        )
+        return path, ops
+        
+    def getFontFromState(self):
+        font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
+        family = self.state.get("font-family")
+        if False:#family:
+            #print "setting font", family
+            font.SetFaceName(family)
+        size = self.state.get("font-size")
+        #I'm not sure if this is right or not
+        if size:
+            val, unit = values.length.parseString(size)
+            if '__WXMSW__' in wx.PlatformInfo:
+                i = int(val)
+                font.SetPixelSize((i, i))
+            else:
+                font.SetPointSize(int(val))
+        return font
+    
+    def addTextToDocument(self, node):
+        x, y = [attrAsFloat(node, attr) for attr in ('x', 'y')]
+        
+        def DoDrawText(context, text, x, y, brush=wx.NullGraphicsBrush):
+            #SVG spec appears to originate text from the bottom
+            #rather than the top as with our API. This function
+            #will measure and then re-orient the text as needed.
+            w, h = context.GetTextExtent(text)
+            y -= h
+            context.DrawText(text, x, y, brush)
+        font = self.getFontFromState()
+        brush = self.getBrushFromState()
+        if not (brush and brush.IsOk()):
+            brush = wx.BLACK_BRUSH
+        #normalize whitespace
+        #TODO: SVG probably has rules for this
+        text = ' '.join(node.text.split() if node.text else "")
+        if text is None:
+            return None, []
+        ops = [
+            (wx.GraphicsContext.SetFont, (font, brush.Colour)),
+            (DoDrawText, (text, x, y))
+        ]
+        return None, ops
+        
+    @pathHandler
+    def addRectToDocument(self, node, path):
+        x, y, w, h = (attrAsFloat(node, attr) for attr in ['x', 'y', 'width', 'height'])
+        rx = node.get('rx')
+        ry = node.get('ry')
+        if not (w and h):
+            path.MoveToPoint(x,y) #keep the current point correct
+            return
+        if rx or ry:
+            if rx and ry:
+                rx, ry = float(rx), float(ry)
+            elif rx:
+                rx = ry = float(rx)
+            elif ry:
+                rx = ry = float(ry)
+            #value clamping as per spec section 9.2
+            rx = min(rx, w/2)
+            ry = min(ry, h/2)
+            
+            #origin
+            path.MoveToPoint(x+rx, y)
+            path.AddLineToPoint(x+w-rx, y)
+            #top right
+            cx = rx * 2
+            cy = ry * 2
+            path.AddEllipticalArc(
+                x+w-cx, y,
+                cx, cy,
+                math.radians(270), math.radians(0),
+                True
+            )
+            path.AddLineToPoint(x+w, y+h-ry)
+            #bottom right
+            path.AddEllipticalArc(
+                x+w-cx, y+h-cy,
+                cx, cy,
+                math.radians(0), math.radians(90),
+                True
+            )
+            path.AddLineToPoint(x+rx, y+h)
+            #bottom left
+            path.AddEllipticalArc(
+                x, y+h-cy,
+                cx, cy,
+                math.radians(90),
+                math.radians(180),
+                True
+            )
+            path.AddLineToPoint(x, y+ry)
+            #bottom right
+            path.AddEllipticalArc(
+                x, y,
+                cx, cy,
+                math.radians(180),
+                math.radians(270),
+                True
+            )
+            path.CloseSubpath()
+        else:
+            path.AddRectangle(
+                x, y, w, h
+            )
+    
+    @pathHandler
+    def addCircleToDocument(self, node, path):
+        cx, cy, r = [attrAsFloat(node, attr) for attr in ('cx', 'cy', 'r')]
+        path.AddCircle(cx, cy, r)
+        
+    @pathHandler
+    def addEllipseToDocument(self, node, path):
+        cx, cy, rx, ry = [float(node.get(attr, 0)) for attr in ('cx', 'cy', 'rx', 'ry')]
+        #cx, cy are centerpoint.
+        #rx, ry are radius.
+        #wxGC coords are the rect of the ellipse bounding box.
+        if rx <= 0 or ry <= 0:
+            return
+        x = cx - rx
+        y = cy - ry
+        path.AddEllipse(x, y, rx*2, ry*2)
+    
+    @pathHandler            
+    def addLineToDocument(self, node, path):
+        x1, y1, x2, y2 = [attrAsFloat(node, attr) for attr in ('x1', 'y1', 'x2', 'y2')]
+        path.MoveToPoint(x1, y1)
+        path.AddLineToPoint(x2, y2)
+        
+    @pathHandler
+    def addPolyLineToDocument(self, node, path):
+        #translate to pathdata and render that
+        data = "M " + node.get("points")
+        self.addPathDataToPath(data, path)
+    
+    @pathHandler    
+    def addPolygonToDocument(self, node, path):
+        #translate to pathdata and render that
+        data = "M " + node.get("points") + " Z"
+        self.addPathDataToPath(data, path)
+        
+    @pathHandler
+    def addPathDataToDocument(self, node, path):
+        self.addPathDataToPath(node.get('d', ''), path)
+    
+    def addPathDataToPath(self, data, path):
+        self.lastControl = None
+        self.lastControlQ = None
+        self.firstPoints = []
+        def normalizeStrokes(parseResults):
+            """ The data comes from the parser in the
+            form of (command, [list of arguments]).
+            We translate that to [(command, args[0]), (command, args[1])]
+            via a generator.
+            
+            M is special cased because its subsequent arguments
+            become linetos.
+            """
+            for command, arguments in parseResults:
+                if not arguments:
+                    yield (command, ())
+                else:
+                    arguments = iter(arguments)
+                    if command ==  'm':
+                        yield (command, arguments.next())
+                        command = "l"
+                    elif command == "M":
+                        yield (command, arguments.next())
+                        command = "L"
+                    for arg in arguments:
+                        yield (command, arg)
+        #print "data length", len(data)
+        import time
+        t = time.time()
+        parsed = pathdata.svg.parseString(data)
+        #print "parsed in", time.time()-t
+        for stroke in normalizeStrokes(parsed):
+            self.addStrokeToPath(path, stroke)
+        
+        
+    def generatePathOps(self, path):
+        """ Look at the current state and generate the 
+        draw operations (fill, stroke, neither) for the path"""
+        ops = []
+        brush = self.getBrushFromState(path)
+        fillRule = self.state.get('fill-rule', 'nonzero')
+        frMap = {'nonzero':wx.WINDING_RULE, 'evenodd': wx.ODDEVEN_RULE}
+        fr = frMap.get(fillRule, wx.ODDEVEN_RULE)
+        if brush:
+            ops.append(
+                (wx.GraphicsContext.SetBrush, (brush,))
+            )
+            ops.append(
+                (wx.GraphicsContext.FillPath, (path, fr))
+            )
+        pen = self.getPenFromState()
+        if pen:
+            ops.append(
+                    (wx.GraphicsContext.SetPen, (pen,))
+                )
+            ops.append(
+                (wx.GraphicsContext.StrokePath, (path,))
+            )
+        return ops
+        
+    def getPenFromState(self):
+        pencolour = self.state.get('stroke', 'none')
+        if pencolour == 'currentColor':
+            pencolour = self.state.get('color', 'none')
+        if pencolour == 'transparent':
+            return wx.TRANSPARENT_PEN
+        if pencolour == 'none':
+            return wx.NullPen
+        type, value = colourValue.parseString(pencolour)
+        if type == 'URL':
+            warnings.warn("Color servers for stroking not implemented")
+            return wx.NullPen
+        else:
+            if value[:3] == (-1, -1, -1):
+                return wx.NullPen
+            pen = wx.Pen(wx.Colour(*value))
+        width = self.state.get('stroke-width')
+        if width:
+            width, units = values.length.parseString(width)
+            pen.SetWidth(width)
+        capmap = {
+            'butt':wx.CAP_BUTT,
+            'round':wx.CAP_ROUND,
+            'square':wx.CAP_PROJECTING
+        }
+        joinmap = {
+            'miter':wx.JOIN_MITER,
+            'round':wx.JOIN_ROUND,
+            'bevel':wx.JOIN_BEVEL
+        }
+        pen.SetCap(capmap.get(self.state.get('stroke-linecap', None), wx.CAP_BUTT))
+        pen.SetJoin(joinmap.get(self.state.get('stroke-linejoin', None), wx.JOIN_MITER))
+        return wx.GraphicsRenderer_GetDefaultRenderer().CreatePen(pen)
+
+    def getBrushFromState(self, path=None):
+        brushcolour = self.state.get('fill', 'black').strip()
+        type, details = paintValue.parseString(brushcolour)
+        if type == "URL":
+            url, fallback = details
+            element = self.resolveURL(url)
+            if not element:
+                if fallback:
+                    type, details = fallback
+                else:
+                    r, g, b, = 0, 0, 0
+            else:
+                if element.tag == '{http://www.w3.org/2000/svg}linearGradient':
+                    box = path.GetBox()
+                    x, y, w, h = box.Get()
+                    return wx.GraphicsRenderer.GetDefaultRenderer().CreateLinearGradientBrush(
+                        x,y,x+w,y+h,wx.Colour(0,0,255,128), wx.RED
+                    )
+                elif element.tag == '{http://www.w3.org/2000/svg}radialGradient':
+                    box = path.GetBox()
+                    x, y, w, h = box.Get()
+                    #print w
+                    mx = wx.GraphicsRenderer.GetDefaultRenderer().CreateMatrix(x,y,w,h)
+                    cx, cy = mx.TransformPoint(0.5, 0.5)
+                    fx, fy = cx, cy
+                    return wx.GraphicsRenderer.GetDefaultRenderer().CreateRadialGradientBrush(
+                        cx,cy,
+                        fx,fy,
+                        (max(w,h))/2,
+                        wx.Colour(0,0,255,128), wx.RED
+                    )
+                else:
+                    #invlid gradient specified
+                    return wx.NullBrush
+            r,g,b  = 0,0,0
+        if type == 'CURRENTCOLOR':
+            type, details = paintValue.parseString(self.state.get('color', 'none'))
+        if type == 'RGB':
+            r,g,b = details
+        elif type == "NONE":
+            return wx.NullBrush
+        opacity = self.state.get('fill-opacity', self.state.get('opacity', '1'))
+        opacity = float(opacity)
+        opacity = min(max(opacity, 0.0), 1.0)
+        a = 255 * opacity
+        #using try/except block instead of 
+        #just setdefault because the wxBrush and wxColour would
+        #be created every time anyway in order to pass them,
+        #defeating the purpose of the cache
+        try:
+            return SVGDocument.brushCache[(r,g,b,a)]
+        except KeyError:
+            return SVGDocument.brushCache.setdefault((r,g,b,a), wx.Brush(wx.Colour(r,g,b,a)))
+        
+        
+    def resolveURL(self, urlData):
+        """
+            Resolve a URL and return an elementTree Element from it.
+            
+            Return None if unresolvable
+            
+        """
+        scheme, netloc, path, query, fragment = urlData
+        if scheme == netloc == path == '':
+            #horrible. There's got to be a better way?
+            if self.tree.get("id") == fragment:
+                return self.tree
+            else:
+                for child in self.tree.getiterator():
+                    #print child.get("id")
+                    if child.get("id") == fragment:
+                        return child
+            return None
+        else:
+            return self.resolveRemoteURL(urlData)
+        
+    def resolveRemoteURL(self, url):
+        return None
+        
+    def addStrokeToPath(self, path, stroke):
+        """ Given a stroke from a path command
+        (in the form (command, arguments)) create the path
+        commands that represent it.
+        
+        TODO: break out into (yet another) class/module,
+        especially so we can get O(1) dispatch on type?
+        """
+        type, arg = stroke
+        relative = False
+        if type == type.lower():
+            relative = True
+            ox, oy = path.GetCurrentPoint().Get()
+        else:
+            ox = oy = 0
+        def normalizePoint(arg):
+            x, y = arg
+            return x+ox, y+oy
+        def reflectPoint(point, relativeTo):
+            x, y = point
+            a, b = relativeTo
+            return ((a*2)-x), ((b*2)-y)
+        type = type.upper()
+        if type == 'M':
+            pt = normalizePoint(arg)
+            self.firstPoints.append(pt)
+            path.MoveToPoint(pt)
+        elif type == 'L':
+            path.AddLineToPoint(normalizePoint(arg))
+        elif type == 'C':
+            #control1, control2, endpoint = arg
+            control1, control2, endpoint = map(
+                normalizePoint, arg
+            )
+            self.lastControl = control2
+            path.AddCurveToPoint(
+                control1, 
+                control2, 
+                endpoint
+            )
+            #~ cp = path.GetCurrentPoint()
+            #~ path.AddCircle(c1x, c1y, 5)
+            #~ path.AddCircle(c2x, c2y, 3)
+            #~ path.AddCircle(x,y, 7)
+            #~ path.MoveToPoint(cp)
+            #~ print "C", control1, control2, endpoint
+        
+        elif type == 'S':
+            #control2, endpoint = arg
+            control2, endpoint = map(
+                normalizePoint, arg
+            )
+            if self.lastControl:
+                control1 = reflectPoint(self.lastControl, path.GetCurrentPoint())
+            else:
+                control1 = path.GetCurrentPoint()
+            #~ print "S", self.lastControl,":",control1, control2, endpoint    
+            self.lastControl = control2
+            path.AddCurveToPoint(
+                control1, 
+                control2, 
+                endpoint
+            )
+        elif type == "Q":
+            (cx, cy), (x,y) = map(normalizePoint, arg)
+            self.lastControlQ = (cx, cy)
+            path.AddQuadCurveToPoint(cx, cy, x, y)
+        elif type == "T":
+            x, y, = normalizePoint(arg)
+            if self.lastControlQ:
+                cx, cy = reflectPoint(self.lastControlQ, path.GetCurrentPoint())
+            else:
+                cx, cy = path.GetCurrentPoint()
+            self.lastControlQ = (cx, cy)
+            path.AddQuadCurveToPoint(cx, cy, x, y)
+                
+        elif type == "V":
+            _, y = normalizePoint((0, arg))
+            x, _ = path.GetCurrentPoint()
+            path.AddLineToPoint(x,y)
+        
+        elif type == "H":
+            x, _ = normalizePoint((arg, 0))
+            _, y = path.GetCurrentPoint()
+            path.AddLineToPoint(x,y)
+            
+        elif type == "A":
+            #wxGC currently only supports circular arcs,
+            #not eliptical ones
+            
+            (
+            (rx, ry), #radii of ellipse
+            angle, #angle of rotation on the ellipse in degrees
+            (fa, fs), #arc and stroke angle flags
+            (x, y) #endpoint on the arc
+            ) = arg 
+            
+            x, y = normalizePoint((x,y))
+            cx, cy = path.GetCurrentPoint()
+            if (cx, cy) == (x, y):
+                return #noop
+                
+            if (rx == 0 or ry == 0):
+                #no radius is effectively a line
+                path.AddLineToPoint(x,y)
+                return
+            
+            #find the center point for the ellipse
+            #translation via the angle
+            angle = angle % 360
+            angle = math.radians(angle)
+            
+            #translated endpoint
+            xPrime = math.cos(angle) * ((cx-x)/2)
+            xPrime += math.sin(angle) * ((cx-x)/2)
+            yPrime = -(math.sin(angle)) * ((cy-y)/2)
+            yPrime += (math.cos(angle)) * ((cy-y)/2)
+            
+            
+            temp = ((rx**2) * (ry**2)) - ((rx**2) * (yPrime**2)) - ((ry**2) * (xPrime**2))
+            temp /= ((rx**2) * (yPrime**2)) + ((ry**2)*(xPrime**2))
+            temp = abs(temp)
+            try:
+                temp = math.sqrt(temp)
+            except ValueError:
+                import pdb
+                pdb.set_trace()
+            cxPrime = temp * ((rx * yPrime) / ry)
+            cyPrime = temp * -((ry * xPrime) / rx)
+            if fa == fs:
+                cxPrime, cyPrime = -cxPrime, -cyPrime
+            
+            #reflect backwards now for the origin
+            cnx = math.cos(angle) * cxPrime
+            cnx += math.sin(angle) * cxPrime
+            cny = -(math.sin(angle)) * cyPrime
+            cny += (math.cos(angle)) * cyPrime
+            cnx += ((cx+x)/2.0)
+            cny += ((cy+y)/2.0)
+            
+            #calculate the angle between the two endpoints
+            lastArc = wx.Point2D(x-cnx, y-cny).GetVectorAngle()
+            firstArc = wx.Point2D(cx-cnx, cy-cny).GetVectorAngle()
+            lastArc = math.radians(lastArc)
+            firstArc = math.radians(firstArc)
+            
+            
+            #aargh buggines.
+            #AddArc draws a straight line between
+            #the endpoints of the arc.
+            #putting it in a subpath makes the strokes come out 
+            #correctly, but it still only fills the slice
+            #taking out the MoveToPoint fills correctly.
+            path.AddEllipse(cnx-rx, cny-ry, rx*2, ry*2)
+            path.MoveToPoint(x, y)
+            #~ npath = makePath()
+            #~ npath.AddEllipticalArc(cnx-rx, cny-ry, rx*2, ry*2, firstArc, lastArc, False)
+            #~ npath.MoveToPoint(x,y)
+            #~ path.AddPath(npath)
+            
+        elif type == 'Z':
+            #~ Bugginess:
+            #~ CloseSubpath() doesn't change the
+            #~ current point, as SVG spec requires.
+            #~ However, manually moving to the endpoint afterward opens a new subpath
+            #~ and (apparently) messes with stroked but not filled paths.
+            #~ This is possibly a bug in GDI+?
+            #~ Manually closing the path via AddLineTo gives incorrect line join
+            #~ results
+            #~ Manually closing the path *and* calling CloseSubpath() appears
+            #~ to give correct results on win32
+                
+            pt = self.firstPoints.pop()
+            path.AddLineToPoint(pt)
+            path.CloseSubpath()
+                
+    def render(self, context):
+        if not hasattr(self, "ops"):
+            return
+        for op, args in self.ops:
+            op(context, *args)
+            
+if __name__ == '__main__':
+    from tests.test_document import *
+    unittest.main()

svg/pathdata.py

@@ -0,0 +1,193 @@
+"""
+    SVG path data parser
+    
+    
+    Usage:
+    steps = svg.parseString(pathdata)
+    for command, arguments in steps:
+        pass
+    
+"""
+
+from pyparsing import (ParserElement, Literal, Word, CaselessLiteral, 
+    Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, ParseException, OneOrMore)
+    
+#ParserElement.enablePackrat()
+
+def Command(char):
+    """ Case insensitive but case preserving"""
+    return CaselessPreservingLiteral(char)
+    
+def Arguments(token):
+    return Group(token)
+    
+    
+class CaselessPreservingLiteral(CaselessLiteral):
+    """ Like CaselessLiteral, but returns the match as found
+        instead of as defined.
+    """
+    def __init__( self, matchString ):
+        super(CaselessPreservingLiteral,self).__init__( matchString.upper() )
+        self.name = "'%s'" % matchString
+        self.errmsg = "Expected " + self.name
+        self.myException.msg = self.errmsg
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        test = instring[ loc:loc+self.matchLen ]
+        if test.upper() == self.match:
+            return loc+self.matchLen, test
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc   
+    
+def Sequence(token):
+    """ A sequence of the token"""
+    return OneOrMore(token+maybeComma)
+
+digit_sequence = Word(nums)
+
+sign = oneOf("+ -")
+
+def convertToFloat(s, loc, toks):
+    try:
+        return float(toks[0])
+    except:
+        raise ParseException(loc, "invalid float format %s"%toks[0])
+
+exponent = CaselessLiteral("e")+Optional(sign)+Word(nums)
+
+#note that almost all these fields are optional, 
+#and this can match almost anything. We rely on Pythons built-in
+#float() function to clear out invalid values - loosely matching like this
+#speeds up parsing quite a lot
+floatingPointConstant = Combine(
+    Optional(sign) + 
+    Optional(Word(nums)) + 
+    Optional(Literal(".") + Optional(Word(nums)))+
+    Optional(exponent)
+)
+
+floatingPointConstant.setParseAction(convertToFloat)
+
+number = floatingPointConstant
+
+#same as FP constant but don't allow a - sign
+nonnegativeNumber = Combine(
+    Optional(Word(nums)) + 
+    Optional(Literal(".") + Optional(Word(nums)))+
+    Optional(exponent)
+)
+nonnegativeNumber.setParseAction(convertToFloat)
+
+coordinate = number
+
+#comma or whitespace can seperate values all over the place in SVG
+maybeComma = Optional(Literal(',')).suppress()
+
+coordinateSequence = Sequence(coordinate)
+
+coordinatePair = (coordinate + maybeComma + coordinate).setParseAction(lambda t: tuple(t))
+coordinatePairSequence = Sequence(coordinatePair)
+
+coordinatePairPair = coordinatePair + maybeComma + coordinatePair
+coordinatePairPairSequence = Sequence(Group(coordinatePairPair))
+
+coordinatePairTriple = coordinatePair + maybeComma + coordinatePair + maybeComma + coordinatePair
+coordinatePairTripleSequence = Sequence(Group(coordinatePairTriple))
+
+#commands
+lineTo = Group(Command("L") + Arguments(coordinatePairSequence))
+
+moveTo = Group(Command("M") + Arguments(coordinatePairSequence))
+
+closePath = Group(Command("Z")).setParseAction(lambda t: ('Z', (None,)))
+
+flag = oneOf("1 0").setParseAction(lambda t: bool(int((t[0]))))
+
+arcRadius = (
+    nonnegativeNumber + maybeComma + #rx
+    nonnegativeNumber #ry
+).setParseAction(lambda t: tuple(t))
+
+arcFlags = (flag + maybeComma + flag).setParseAction(lambda t: tuple(t))
+
+ellipticalArcArgument = Group(
+    arcRadius + maybeComma + #rx, ry
+    number + maybeComma +#rotation
+    arcFlags + #large-arc-flag, sweep-flag
+    coordinatePair #(x,y)
+)
+
+ 
+ellipticalArc = Group(Command("A") + Arguments(Sequence(ellipticalArcArgument)))
+
+smoothQuadraticBezierCurveto = Group(Command("T") + Arguments(coordinatePairSequence))
+
+quadraticBezierCurveto = Group(Command("Q") + Arguments(coordinatePairPairSequence))
+
+smoothCurve = Group(Command("S") + Arguments(coordinatePairPairSequence))
+
+curve = Group(Command("C") + Arguments(coordinatePairTripleSequence))
+
+horizontalLine = Group(Command("H") + Arguments(coordinateSequence))
+verticalLine = Group(Command("V") + Arguments(coordinateSequence))
+
+drawToCommand = (
+    lineTo | moveTo | closePath | ellipticalArc | smoothQuadraticBezierCurveto |
+    quadraticBezierCurveto | smoothCurve | curve | horizontalLine | verticalLine
+    )
+
+#~ number.debug = True
+moveToDrawToCommands = moveTo + ZeroOrMore(drawToCommand)
+
+svg = ZeroOrMore(moveToDrawToCommands)
+svg.keepTabs = True
+
+def profile():
+    import cProfile
+    p = cProfile.Profile()
+    p.enable()
+    ptest()
+    ptest()
+    ptest()
+    p.disable()
+    p.print_stats()
+
+bpath = """M204.33 139.83 C196.33 133.33 206.68 132.82 206.58 132.58 C192.33 97.08 169.35 
+    81.41 167.58 80.58 C162.12 78.02 159.48 78.26 160.45 76.97 C161.41 75.68 167.72 79.72 168.58 
+    80.33 C193.83 98.33 207.58 132.33 207.58 132.33 C207.58 132.33 209.33 133.33 209.58 132.58 
+    C219.58 103.08 239.58 87.58 246.33 81.33 C253.08 75.08 256.63 74.47 247.33 81.58 C218.58 103.58 
+    210.34 132.23 210.83 132.33 C222.33 134.83 211.33 140.33 211.83 139.83 C214.85 136.81 214.83 145.83 214.83 
+    145.83 C214.83 145.83 231.83 110.83 298.33 66.33 C302.43 63.59 445.83 -14.67 395.83 80.83 C393.24 85.79 375.83 
+    105.83 375.83 105.83 C375.83 105.83 377.33 114.33 371.33 121.33 C370.3 122.53 367.83 134.33 361.83 140.83 C360.14 142.67
+    361.81 139.25 361.83 140.83 C362.33 170.83 337.76 170.17 339.33 170.33 C348.83 171.33 350.19 183.66 350.33 183.83 C355.83 
+    190.33 353.83 191.83 355.83 194.83 C366.63 211.02 355.24 210.05 356.83 212.83 C360.83 219.83 355.99 222.72 357.33 224.83 
+    C360.83 230.33 354.75 233.84 354.83 235.33 C355.33 243.83 349.67 240.73 349.83 244.33 C350.33 255.33 346.33 250.83 343.83 254.83 
+    C336.33 266.83 333.46 262.38 332.83 263.83 C329.83 270.83 325.81 269.15 324.33 270.83 C320.83 274.83 317.33 274.83 315.83 276.33
+    C308.83 283.33 304.86 278.39 303.83 278.83 C287.83 285.83 280.33 280.17 277.83 280.33 C270.33 280.83 271.48 279.67 269.33 277.83 
+    C237.83 250.83 219.33 211.83 215.83 206.83 C214.4 204.79 211.35 193.12 212.33 195.83 C214.33 201.33 213.33 250.33 207.83 250.33 
+    C202.33 250.33 201.83 204.33 205.33 195.83 C206.43 193.16 204.4 203.72 201.79 206.83 C196.33 213.33 179.5 250.83 147.59 277.83 
+    C145.42 279.67 146.58 280.83 138.98 280.33 C136.46 280.17 128.85 285.83 112.65 278.83 C111.61 278.39 107.58 283.33 100.49 276.33 
+    C98.97 274.83 95.43 274.83 91.88 270.83 C90.39 269.15 86.31 270.83 83.27 263.83 C82.64 262.38 79.73 266.83 72.13 254.83 C69.6 250.83 
+    65.54 255.33 66.05 244.33 C66.22 240.73 60.48 243.83 60.99 235.33 C61.08 233.84 54.91 230.33 58.45 224.83 C59.81 222.72 54.91 219.83 
+    58.96 212.83 C60.57 210.05 49.04 211.02 59.97 194.83 C62 191.83 59.97 190.33 65.54 183.83 C65.69 183.66 67.06 171.33 76.69 170.33 
+    C78.28 170.17 53.39 170.83 53.9 140.83 C53.92 139.25 55.61 142.67 53.9 140.83 C47.82 134.33 45.32 122.53 44.27 121.33 C38.19 114.33 
+    39.71 105.83 39.71 105.83 C39.71 105.83 22.08 85.79 19.46 80.83 C-31.19 -14.67 114.07 63.59 118.22 66.33 C185.58 110.83 202 145.83 
+    202 145.83 C202 145.83 202.36 143.28 203 141.83 C203.64 140.39 204.56 140.02 204.33 139.83 z"""
+
+def ptest():
+    svg.parseString(bpath)
+    
+
+
+    
+    
+if __name__ == '__main__':
+    
+    #~ from tests.test_pathdata import *
+    #~ unittest.main()
+    profile()
+
+

svg/testfiles/belt_pulley3.skeinforge.large.svg

@@ -0,0 +1,655 @@
+<?xml version='1.0' standalone='no'?>
+<!--Written in KDevelop (http://www.kdevelop.org/)-->
+<svg baseProfile='full' contentScriptType='text/ecmascript' contentStyleType='text/css' height='4003.518px' onload='init()' preserveAspectRatio='xMidYMid meet' version='1.0' width='516.0px' xmlns='http://www.w3.org/2000/svg' xmlns:inkscape='http://www.inkscape.org/namespaces/inkscape' xmlns:slice='http://www.reprap.org/slice' xmlns:xlink='http://www.w3.org/1999/xlink' zoomAndPan='magnify'>
+	<metadata>
+		<slice:layers id='sliceData' controlBoxHeight='720' controlBoxWidth='240' decimalPlacesCarried='4' edgeWidth='0.72' layerHeight='0.4' margin='20' marginTop='60' maxX='11.919' maxY='11.919' maxZ='10.0' minX='-11.919' minY='-11.919' minZ='-2.0' procedureName='carve' svgMinWidth='516' template='svg_layer' textHeight='22.5' unitScale='3.7' version='0.1' yAxisPointingUpward='true' />
+	</metadata>
+	<script type='text/ecmascript'>
+<![CDATA[
+globalMetadata = document.getElementsByTagNameNS('http://www.reprap.org/slice', 'layers')[0];
+globalSliceMinX = globalMetadata.getAttribute('minX') * 1;
+globalSliceMaxX = globalMetadata.getAttribute('maxX') * 1;
+globalSliceMinY = globalMetadata.getAttribute('minY') * 1;
+globalSliceMaxY = globalMetadata.getAttribute('maxY') * 1;
+globalSliceMinZ = globalMetadata.getAttribute('minZ') * 1;
+globalSliceMaxZ = globalMetadata.getAttribute('maxZ') * 1;
+
+//Control var's
+globalLayerIndex = 0; //Number of currently viewed layer (zero index)
+globalLatitude = 60.0;
+globalLongitude = 45.0;
+globalControlBoxHeight = globalMetadata.getAttribute('controlBoxHeight') * 1;
+globalControlBoxWidth = globalMetadata.getAttribute('controlBoxWidth') * 1;
+globalSliding = false;
+globalObserving = false
+
+//Display var's
+globalMargin = globalMetadata.getAttribute('margin') * 1;
+globalMarginTop = globalMetadata.getAttribute('marginTop') * 1;
+globalDimensionX = globalSliceMaxX - globalSliceMinX;
+globalDimensionY = globalSliceMaxY - globalSliceMinY;
+globalDimensionZ = globalSliceMaxZ - globalSliceMinZ;
+magnitudeXYSquared = globalDimensionX * globalDimensionX + globalDimensionY * globalDimensionY;
+globalDimensionMagnitude = Math.sqrt(magnitudeXYSquared + globalDimensionZ * globalDimensionZ);
+globalGlobeTravelRadian = 0.0;
+globalGlobeInnerObserverRadius = 0.0;
+globalTextHeight = globalMetadata.getAttribute('textHeight') * 1.0;
+globalUnitScale = globalMetadata.getAttribute('unitScale') * 1.0;
+globalXOffset = globalControlBoxWidth + globalMargin + globalMargin;
+globalYOffset = globalMargin + globalMarginTop;
+globalZoomScale = 1.0; //Default 1:1 may need smaller scale for large objects
+globalScale = globalUnitScale * globalZoomScale;
+
+//Globals to be set in init
+globalLayers = [];
+globalSlider = 0;
+globalThumb = 0;
+globalThumbRadius = 0.0;
+globalSliderWidthMinusDiameter = 0.0;
+
+
+function changeScale(newScale) {
+	globalZoomScale = newScale;
+	globalScale = globalUnitScale * globalZoomScale;
+	if (globalZoomScale >=1) { //dont scale line thickness for large display scale
+		document.getElementById('layerData').setAttributeNS(null, 'stroke-width', 2.0 / (globalScale));
+	}
+}
+
+function changeScaleIso(newScale) {
+	changeScale(newScale);
+	viewIso();
+}
+
+function changeScaleLayer(newScale) {
+	changeScale(newScale);
+	viewLayer();
+}
+
+function changeScaleScroll(newScale) {
+	changeScale(newScale);
+	viewScroll();
+}
+
+function displayIso(latitude, longitude) {
+	latitude = Math.max(0.0, latitude);
+	latitude = Math.min(89.0, latitude);
+	globalLatitude = Math.round(latitude);
+	globalLongitude = Math.round((longitude + 540.0) % 360.0) - 180.0;
+	latitudeRadians = getRadians(globalLatitude);
+	longitudeWiddershinsRadians = getRadians(90.0 - globalLongitude);
+	unitX = Math.cos(longitudeWiddershinsRadians);
+	unitY = Math.sin(longitudeWiddershinsRadians);
+	latitudeOverLayers = globalDimensionZ / globalLayers.length;
+	globalOneOverUnitScaleString = (1.0 / globalUnitScale).toString();
+	yScale = -1.0 * globalScale * Math.cos(latitudeRadians);
+	scaleRotateCenterString = ' scale(' + globalScale + ', ' + yScale + ')';
+	scaleRotateCenterString += ' rotate(' + (-1.0 * globalLongitude).toString() + ')';
+	centerX = (-0.5 * globalDimensionX - globalSliceMinX).toString();
+	centerY = (-0.5 * globalDimensionY - globalSliceMinY).toString();
+	scaleRotateCenterString += ' translate(' + centerX + ', ' + centerY + ')';
+	x = 0.5 * globalDimensionMagnitude * globalScale + globalXOffset;
+	halfLengthMinusOne = 0.5 * (globalLayers.length - 1);
+	for (var i in globalLayers) {
+		latitudeZSin = Math.sin(latitudeRadians) * (i - halfLengthMinusOne) * latitudeOverLayers
+		y = globalScale * (0.5 * globalDimensionMagnitude - latitudeZSin) + globalYOffset;
+//		y = globalDimensionY * globalScale + globalYOffset - i * unitY * latitudeOverLayers;
+		transformString = ' translate(' + x + ', ' + y + ')';
+		globalLayers[i].setAttributeNS(null, 'transform', transformString + scaleRotateCenterString);
+	}
+	setText('latitudeIso', 'Latitude: ' + globalLatitude.toString() + '°');
+	setText('longitudeIso', 'Longitude: ' + globalLongitude.toString() + '°');
+	globeMoveableRadius = globalGlobeTravelRadian * latitudeRadians + globalGlobeInnerObserverRadius;
+	globalObserver.setAttribute('cx', globalGlobeCenterX + unitX * globeMoveableRadius);
+	globalObserver.setAttribute('cy', globalGlobeCenterY - unitY * globeMoveableRadius);
+}
+
+function displayIsoByLatitude(latitude) {
+	displayIso(latitude, globalLongitude);
+}
+
+function displayIsoByLongitude(longitude) {
+	displayIso(globalLatitude, longitude);
+}
+
+function displayLayer(layerNum) {
+	if (globalLayers.length <= 1) {
+		document.getElementById('maxIndexLayer').setAttributeNS(null, 'visibility', 'hidden');
+		document.getElementById('minIndexLayer').setAttributeNS(null, 'visibility', 'hidden');
+		globalSlider.setAttributeNS(null, 'visibility', 'hidden');
+		globalThumb.setAttributeNS(null, 'visibility', 'hidden');
+	}
+	if (layerNum <= 0) {
+		document.getElementById('decreaseLayerIndex').setAttributeNS(null, 'visibility', 'hidden');
+	}
+	else {
+		document.getElementById('decreaseLayerIndex').setAttributeNS(null, 'visibility', 'visible');
+	}
+	if (layerNum >= globalLayers.length - 1) {
+		document.getElementById('increaseLayerIndex').setAttributeNS(null, 'visibility', 'hidden');
+	}
+	else {
+		document.getElementById('increaseLayerIndex').setAttributeNS(null, 'visibility', 'visible');
+	}
+	if (layerNum < 0 || layerNum >= globalLayers.length) {
+		return
+	}
+	globalLayers[globalLayerIndex].setAttributeNS(null, 'visibility', 'hidden');
+	currentLayerElement = globalLayers[layerNum]
+	currentLayerElement.setAttributeNS(null, 'visibility', 'visible');
+	globalLayerIndex = layerNum;
+	setText('currentIndexLayer', 'Layer: ' + globalLayerIndex.toString() + ', ' + currentLayerElement.getAttribute('id'));
+	//Slider
+	if (!globalSliding) {
+		placeThumb(globalSliderWidthMinusDiameter / (globalLayers.length - 1) * globalLayerIndex + globalThumbRadius);
+	}
+}
+
+function getDegrees(radians) {
+	return radians / Math.PI * 180.0;
+}
+
+function getRadians(degrees) {
+	return degrees / 180.0 * Math.PI;
+}
+
+function getScaleTransformString(scale) {
+	scaleTransformString = 'scale(' + scale + ' ' + (scale * - 1)
+	return scaleTransformString + ') translate(' + (globalSliceMinX * - 1) + ' ' + (globalSliceMinY * - 1) + ')';
+}
+
+function getWidth() {
+	return (globalDimensionX * globalScale) + globalXOffset
+}
+
+function hideElements(elementNames) {
+	for (var elementNameIndex in elementNames) {
+		document.getElementById(elementNames[elementNameIndex]).setAttributeNS(null, 'visibility', 'hidden');
+	}
+}
+
+function init() {
+	//Find only layer groups
+	globe = document.getElementById('globe');
+	globalGlobeCenterX = globe.getAttribute('cx') * 1;
+	globalGlobeCenterXWindow = globalGlobeCenterX + globalMargin;
+	globalGlobeCenterY = globe.getAttribute('cy') * 1;
+	globalGlobeCenterYWindow = globalGlobeCenterX + globalMarginTop;
+	globalObserver = document.getElementById('observer');
+	globeRadius = globe.getAttribute('r') * 1.0;
+	observerRadius = globalObserver.getAttribute('r') * 1.0;
+	globalGlobeInnerObserverRadius = document.getElementById('cover').getAttribute('r') * 1.0 + observerRadius;
+	globalGlobeTravelRadian = getDegrees(globeRadius - globalGlobeInnerObserverRadius - observerRadius) / 89.0;
+	globalSlider = document.getElementById('slider');
+	globalSliderX = globalSlider.getAttribute('x') * 1;
+	globalSliderXWindow = globalSliderX + globalMargin
+	globalThumb = document.getElementById('thumb');
+	globalThumbRadius = globalThumb.getAttribute('r') * 1;
+	globalSliderWidthMinusRadius = globalSlider.getAttribute('width') * 1 - globalThumbRadius;
+	globalSliderWidthMinusDiameter = globalSliderWidthMinusRadius - globalThumbRadius;
+	var allGroups = document.getElementsByTagName('g');
+	for (var i = 0; i < allGroups.length; i++) {
+		if (allGroups[i].id.indexOf('z:') == 0) {
+			globalLayers.push(allGroups[i]);
+		}
+	}
+
+	//Slider
+	layerControlBox = document.getElementById('layerControlBox');
+	layerControlBox.addEventListener('mouseup', sliderUp, false);
+	layerControlBox.addEventListener('mousemove', sliderMove, false);
+	globalSlider.addEventListener('mousedown', sliderDownMove, false);
+	globalThumb.addEventListener('mousedown', sliderDownMove, false);
+	//Observer
+	isoControlBox = document.getElementById('isoControlBox');
+	isoControlBox.addEventListener('mouseup', observerUp, false);
+	isoControlBox.addEventListener('mousemove', observerMove, false);
+	globe.addEventListener('mousedown', observerDownMove, false);
+	globalObserver.addEventListener('mousedown', observerDownMove, false);
+	
+	//Control box data
+	setText('maxIndexLayer', globalLayers.length - 1);
+	changeScaleLayer(globalZoomScale);
+}
+
+function observerDown(event) {
+	globalObserving = true;
+}
+
+function observerDownMove(event) {
+	globalObserving = true;
+	observerMove(event);
+}
+
+function observerMove(event) {
+	if (!globalObserving) {
+		return;
+	}
+	observerX = event.clientX - globalGlobeCenterXWindow + window.pageXOffset;
+	observerY = event.clientY - globalGlobeCenterYWindow + window.pageYOffset;
+	distanceFromCenter = Math.sqrt(observerX * observerX + observerY * observerY);
+	latitudeRadians = (distanceFromCenter - globalGlobeInnerObserverRadius) / globalGlobeTravelRadian;
+	longitudeRadians = Math.atan2(observerX, -observerY);
+	displayIso(getDegrees(latitudeRadians), getDegrees(longitudeRadians));
+}
+
+function observerUp(event) {
+	globalObserving = false;
+}
+
+function placeThumb(value) {
+	if (globalLayers.length > 1) {
+		globalThumb.setAttribute('cx', globalSliderX + value);
+	}
+}
+
+function setScaleText(scaleID) {
+	setText(scaleID, ': ' + globalZoomScale);
+}
+
+function setSVG(width, height) {
+	rootSVG = document.getElementsByTagName('svg')[0];
+	svgMinWidth = globalMetadata.getAttribute('svgMinWidth') * 1;
+	height = Math.max(globalControlBoxHeight + globalMargin + globalMarginTop, height);
+	width = Math.max(svgMinWidth, width);
+	rootSVG.setAttributeNS(null, 'width', width + 'px')
+	rootSVG.setAttributeNS(null, 'height', height + 'px')
+}
+
+function setText(id, str) {
+	e = document.getElementById(id)
+	if (e != null)
+		e.firstChild.nodeValue = str;
+}
+
+function showElements(elementNames) {
+	for (var elementNameIndex in elementNames) {
+		document.getElementById(elementNames[elementNameIndex]).setAttributeNS(null, 'visibility', 'visible');
+	}
+}
+
+function sliderDown(event) {
+	globalSliding = true;
+}
+
+function sliderDownMove(event) {
+	globalSliding = true;
+	sliderMove(event);
+}
+
+function sliderMove(event) {
+	if (!globalSliding) {
+		return;
+	}
+	value = event.clientX - globalSliderXWindow + window.pageXOffset;
+	if (value >= globalThumbRadius && value <= globalSliderWidthMinusRadius) {
+		placeThumb(value);
+		zoneWidth = globalSliderWidthMinusDiameter / (globalLayers.length);
+		newLayer = Math.round((value - globalThumbRadius - 0.5 * zoneWidth) / zoneWidth)
+		if (newLayer != globalLayerIndex) {
+			displayLayer(newLayer)
+		}
+	}
+}
+
+function sliderUp(event) {
+	globalSliding = false;
+}
+
+function viewIso() {
+	height = (globalDimensionMagnitude * globalScale) + globalYOffset;
+	setSVG((globalDimensionMagnitude * globalScale) + globalXOffset, height);
+	for (var i in globalLayers) {
+//		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + globalMargin + ' ' + height + ')');
+		globalLayers[i].setAttributeNS(null, 'visibility', 'visible');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'hidden');
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			  pathElements[pathElementIndex].setAttributeNS(null, 'transform', '');
+		  }
+	  }
+	  //show control box
+	hideElements(['decreaseLayerIndex', 'increaseLayerIndex', 'isoViewButton', 'layerControlBox', 'layerViewLabel', 'scrollControlBox', 'scrollViewLabel']);
+	showElements(['isoControlBox', 'isoViewLabel', 'layerViewButton', 'scrollViewButton']);
+	displayIso(globalLatitude, globalLongitude);
+	setScaleText('scaleIso');
+}
+
+function viewLayer() {
+	//Set svg size and view port
+	height = (globalDimensionY * globalScale) + globalYOffset;
+	setSVG(getWidth(), height);
+	//move and hide all layers 
+	for (var i in globalLayers) {
+		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + globalXOffset + ' ' + height + ')');
+		globalLayers[i].setAttributeNS(null, 'visibility', 'hidden');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'hidden');
+		transform = getScaleTransformString(globalScale);
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			pathElements[pathElementIndex].setAttributeNS(null, 'transform', transform);
+		}
+	}
+
+	//show control box
+	hideElements(['isoControlBox', 'isoViewLabel', 'layerViewButton', 'scrollControlBox', 'scrollViewLabel'])
+	showElements(['isoViewButton', 'layerControlBox', 'layerViewLabel', 'scrollViewButton'])
+	
+	//show current layer
+	displayLayer(globalLayerIndex);
+	setScaleText('scaleLayer');
+}
+
+function viewScroll() {
+	//Set svg size and view port
+	yDimensionScale = globalDimensionY * globalScale
+	singleHeight = (globalMargin + yDimensionScale + globalTextHeight)
+	height = globalLayers.length * singleHeight + globalMargin + globalMargin + globalYOffset;
+	setSVG(getWidth(), height);
+
+	//move and show all layers 
+	for (var i in globalLayers) {
+		x = globalXOffset;
+		y = i * singleHeight + yDimensionScale + globalYOffset;
+		transform = getScaleTransformString(globalScale);
+		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + x + ', ' + y + ')');
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			pathElements[pathElementIndex].setAttributeNS(null, 'transform', transform);
+		}
+		globalLayers[i].setAttributeNS(null, 'visibility', 'visible');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'visible');
+	}
+
+	//show control box
+	hideElements(['isoControlBox', 'isoViewLabel', 'layerControlBox', 'layerViewLabel', 'scrollViewButton'])
+	showElements(['isoViewButton', 'layerViewButton', 'scrollControlBox', 'scrollViewLabel'])
+	setScaleText('scaleScroll');
+}
+	]]>
+	</script>
+	<title >belt_pulley3.stl - Slice Layers</title>
+<!--Begin Layer Data   -->
+	<g id='layerData' fill='#556B2F' fill-rule='evenodd' font-family='Arial' font-size='15px' font-weight='bold' inkscape:groupmode='layer' inkscape:label='Slice Layers' stroke='#00F' stroke-width='0.54px'>
+<!--id='sliceElementTemplate' must be there or else the slice template will not be found-->
+		<g id='z:-1.8' inkscape:groupmode='layer' inkscape:label='Layer 0, z:-1.8' transform='translate(280.0, 168.2006)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate-1.8' fill='#000' stroke='none' y='15' >Layer 0, z:-1.8</text>
+			<path d='M -11.6336 1.4126 L -11.719 0.0 L -11.6336 -1.4126 L -11.3785 -2.8045 L -10.9575 -4.1556 L -10.3766 -5.4461 L -9.6445 -6.6571 L -8.7718 -7.7711 L -7.7711 -8.7718 L -6.6571 -9.6445 L -5.4461 -10.3766 L -4.1556 -10.9575 L -2.8045 -11.3785 L -1.4126 -11.6336 L 0.0 -11.719 L 1.4126 -11.6336 L 2.8045 -11.3785 L 4.1556 -10.9575 L 5.4461 -10.3766 L 6.6571 -9.6445 L 7.7711 -8.7718 L 8.7718 -7.7711 L 9.6445 -6.6571 L 10.3766 -5.4461 L 10.9575 -4.1556 L 11.3785 -2.8045 L 11.6336 -1.4126 L 11.719 0.0 L 11.6336 1.4126 L 11.3785 2.8045 L 10.9575 4.1556 L 10.3766 5.4461 L 9.6445 6.6571 L 8.7718 7.7711 L 7.7711 8.7718 L 6.6571 9.6445 L 5.4461 10.3766 L 4.1556 10.9575 L 2.8045 11.3785 L 1.4126 11.6336 L 0.0 11.719 L -1.4126 11.6336 L -2.8045 11.3785 L -4.1556 10.9575 L -5.4461 10.3766 L -6.6571 9.6445 L -7.7711 8.7718 L -8.7718 7.7711 L -9.6445 6.6571 L -10.3766 5.4461 L -10.9575 4.1556 L -11.3785 2.8045 z M -4.0 -1.5 L -4.0 1.5 L -6.8343 1.5 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5 6.8343 L -1.5 4.0 L 1.5 4.0 L 1.5 6.8343 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8343 1.5 L 4.0 1.5 L 4.0 -1.5 L 6.8343 -1.5 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5 -6.8343 L 1.5 -4.0 L -1.5 -4.0 L -1.5 -6.8343 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8343 -1.5 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:-1.4' inkscape:groupmode='layer' inkscape:label='Layer 1, z:-1.4' transform='translate(280.0, 298.9012)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate-1.4' fill='#000' stroke='none' y='15' >Layer 1, z:-1.4</text>
+			<path d='M -11.2365 1.3644 L -11.319 0.0 L -11.2365 -1.3644 L -10.9901 -2.7088 L -10.5835 -4.0138 L -10.0224 -5.2602 L -9.3154 -6.4299 L -8.4724 -7.5059 L -7.5059 -8.4724 L -6.4299 -9.3154 L -5.2602 -10.0224 L -4.0138 -10.5835 L -2.7088 -10.9901 L -1.3644 -11.2365 L 0.0 -11.319 L 1.3644 -11.2365 L 2.7088 -10.9901 L 4.0138 -10.5835 L 5.2602 -10.0224 L 6.4299 -9.3154 L 7.5059 -8.4724 L 8.4724 -7.5059 L 9.3154 -6.4299 L 10.0224 -5.2602 L 10.5835 -4.0138 L 10.9901 -2.7088 L 11.2365 -1.3644 L 11.319 0.0 L 11.2365 1.3644 L 10.9901 2.7088 L 10.5835 4.0138 L 10.0224 5.2602 L 9.3154 6.4299 L 8.4724 7.5059 L 7.5059 8.4724 L 6.4299 9.3154 L 5.2602 10.0224 L 4.0138 10.5835 L 2.7088 10.9901 L 1.3644 11.2365 L 0.0 11.319 L -1.3644 11.2365 L -2.7088 10.9901 L -4.0138 10.5835 L -5.2602 10.0224 L -6.4299 9.3154 L -7.5059 8.4724 L -8.4724 7.5059 L -9.3154 6.4299 L -10.0224 5.2602 L -10.5835 4.0138 L -10.9901 2.7088 z M -4.0 -1.5 L -4.0 1.5 L -6.8343 1.5 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5 6.8343 L -1.5 4.0 L 1.5 4.0 L 1.5 6.8343 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8343 1.5 L 4.0 1.5 L 4.0 -1.5 L 6.8343 -1.5 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5 -6.8343 L 1.5 -4.0 L -1.5 -4.0 L -1.5 -6.8343 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8343 -1.5 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:-1.0' inkscape:groupmode='layer' inkscape:label='Layer 2, z:-1.0' transform='translate(280.0, 429.6018)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate-1.0' fill='#000' stroke='none' y='15' >Layer 2, z:-1.0</text>
+			<path d='M -10.8394 1.3161 L -10.919 0.0 L -10.8394 -1.3161 L -10.6017 -2.6131 L -10.2095 -3.8719 L -9.6683 -5.0743 L -8.9862 -6.2027 L -8.173 -7.2406 L -7.2406 -8.173 L -6.2027 -8.9862 L -5.0743 -9.6683 L -3.8719 -10.2095 L -2.6131 -10.6017 L -1.3161 -10.8394 L 0.0 -10.919 L 1.3161 -10.8394 L 2.6131 -10.6017 L 3.8719 -10.2095 L 5.0743 -9.6683 L 6.2027 -8.9862 L 7.2406 -8.173 L 8.173 -7.2406 L 8.9862 -6.2027 L 9.6683 -5.0743 L 10.2095 -3.8719 L 10.6017 -2.6131 L 10.8394 -1.3161 L 10.919 0.0 L 10.8394 1.3161 L 10.6017 2.6131 L 10.2095 3.8719 L 9.6683 5.0743 L 8.9862 6.2027 L 8.173 7.2406 L 7.2406 8.173 L 6.2027 8.9862 L 5.0743 9.6683 L 3.8719 10.2095 L 2.6131 10.6017 L 1.3161 10.8394 L 0.0 10.919 L -1.3161 10.8394 L -2.6131 10.6017 L -3.8719 10.2095 L -5.0743 9.6683 L -6.2027 8.9862 L -7.2406 8.173 L -8.173 7.2406 L -8.9862 6.2027 L -9.6683 5.0743 L -10.2095 3.8719 L -10.6017 2.6131 z M -4.0 -1.5 L -4.0 1.5 L -6.8343 1.5 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5 6.8343 L -1.5 4.0 L 1.5 4.0 L 1.5 6.8343 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8343 1.5 L 4.0 1.5 L 4.0 -1.5 L 6.8343 -1.5 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5 -6.8343 L 1.5 -4.0 L -1.5 -4.0 L -1.5 -6.8343 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8343 -1.5 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:-0.6' inkscape:groupmode='layer' inkscape:label='Layer 3, z:-0.6' transform='translate(280.0, 560.3024)'>
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+			<text id='layerTextTemplate9.0' fill='#000' stroke='none' y='15' >Layer 27, z:9.0</text>
+			<path d='M 3.8719 10.2095 L 2.6131 10.6017 L 1.3161 10.8394 L 0.0 10.919 L -1.3161 10.8394 L -2.6131 10.6017 L -3.8719 10.2095 L -5.0743 9.6683 L -6.2027 8.9862 L -7.2406 8.173 L -8.173 7.2406 L -8.9862 6.2027 L -9.6683 5.0743 L -10.2095 3.8719 L -10.6017 2.6131 L -10.8394 1.3161 L -10.919 0.0 L -10.8394 -1.3161 L -10.6017 -2.6131 L -10.2095 -3.8719 L -9.6683 -5.0743 L -8.9862 -6.2027 L -8.173 -7.2406 L -7.2406 -8.173 L -6.2027 -8.9862 L -5.0743 -9.6683 L -3.8719 -10.2095 L -2.6131 -10.6017 L -1.3161 -10.8394 L 0.0 -10.919 L 1.3161 -10.8394 L 2.6131 -10.6017 L 3.8719 -10.2095 L 5.0743 -9.6683 L 6.2027 -8.9862 L 7.2406 -8.173 L 8.173 -7.2406 L 8.9862 -6.2027 L 9.6683 -5.0743 L 10.2095 -3.8719 L 10.6017 -2.6131 L 10.8394 -1.3161 L 10.919 0.0 L 10.8394 1.3161 L 10.6017 2.6131 L 10.2095 3.8719 L 9.6683 5.0743 L 8.9862 6.2027 L 8.173 7.2406 L 7.2406 8.173 L 6.2027 8.9862 L 5.0743 9.6683 z M -6.956 -0.7838 L -7.0 0.0 L -6.956 0.7838 L -6.8245 1.5576 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5576 6.8245 L -0.7838 6.956 L 0.0 7.0 L 0.7838 6.956 L 1.5576 6.8245 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8245 1.5576 L 6.956 0.7838 L 7.0 0.0 L 6.956 -0.7838 L 6.8245 -1.5576 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5576 -6.8245 L 0.7838 -6.956 L 0.0 -7.0 L -0.7838 -6.956 L -1.5576 -6.8245 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8245 -1.5576 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:9.4' inkscape:groupmode='layer' inkscape:label='Layer 28, z:9.4' transform='translate(280.0, 3827.8174)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate9.4' fill='#000' stroke='none' y='15' >Layer 28, z:9.4</text>
+			<path d='M 4.0138 10.5835 L 2.7088 10.9901 L 1.3644 11.2365 L 0.0 11.319 L -1.3644 11.2365 L -2.7088 10.9901 L -4.0138 10.5835 L -5.2602 10.0224 L -6.4299 9.3154 L -7.5059 8.4724 L -8.4724 7.5059 L -9.3154 6.4299 L -10.0224 5.2602 L -10.5835 4.0138 L -10.9901 2.7088 L -11.2365 1.3644 L -11.319 0.0 L -11.2365 -1.3644 L -10.9901 -2.7088 L -10.5835 -4.0138 L -10.0224 -5.2602 L -9.3154 -6.4299 L -8.4724 -7.5059 L -7.5059 -8.4724 L -6.4299 -9.3154 L -5.2602 -10.0224 L -4.0138 -10.5835 L -2.7088 -10.9901 L -1.3644 -11.2365 L 0.0 -11.319 L 1.3644 -11.2365 L 2.7088 -10.9901 L 4.0138 -10.5835 L 5.2602 -10.0224 L 6.4299 -9.3154 L 7.5059 -8.4724 L 8.4724 -7.5059 L 9.3154 -6.4299 L 10.0224 -5.2602 L 10.5835 -4.0138 L 10.9901 -2.7088 L 11.2365 -1.3644 L 11.319 0.0 L 11.2365 1.3644 L 10.9901 2.7088 L 10.5835 4.0138 L 10.0224 5.2602 L 9.3154 6.4299 L 8.4724 7.5059 L 7.5059 8.4724 L 6.4299 9.3154 L 5.2602 10.0224 z M -6.956 -0.7838 L -7.0 0.0 L -6.956 0.7838 L -6.8245 1.5576 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5576 6.8245 L -0.7838 6.956 L 0.0 7.0 L 0.7838 6.956 L 1.5576 6.8245 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8245 1.5576 L 6.956 0.7838 L 7.0 0.0 L 6.956 -0.7838 L 6.8245 -1.5576 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5576 -6.8245 L 0.7838 -6.956 L 0.0 -7.0 L -0.7838 -6.956 L -1.5576 -6.8245 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8245 -1.5576 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:9.8' inkscape:groupmode='layer' inkscape:label='Layer 29, z:9.8' transform='translate(280.0, 3958.518)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate9.8' fill='#000' stroke='none' y='15' >Layer 29, z:9.8</text>
+			<path d='M 4.1556 10.9575 L 2.8045 11.3785 L 1.4126 11.6336 L 0.0 11.719 L -1.4126 11.6336 L -2.8045 11.3785 L -4.1556 10.9575 L -5.4461 10.3766 L -6.6571 9.6445 L -7.7711 8.7718 L -8.7718 7.7711 L -9.6445 6.6571 L -10.3766 5.4461 L -10.9575 4.1556 L -11.3785 2.8045 L -11.6336 1.4126 L -11.719 0.0 L -11.6336 -1.4126 L -11.3785 -2.8045 L -10.9575 -4.1556 L -10.3766 -5.4461 L -9.6445 -6.6571 L -8.7718 -7.7711 L -7.7711 -8.7718 L -6.6571 -9.6445 L -5.4461 -10.3766 L -4.1556 -10.9575 L -2.8045 -11.3785 L -1.4126 -11.6336 L 0.0 -11.719 L 1.4126 -11.6336 L 2.8045 -11.3785 L 4.1556 -10.9575 L 5.4461 -10.3766 L 6.6571 -9.6445 L 7.7711 -8.7718 L 8.7718 -7.7711 L 9.6445 -6.6571 L 10.3766 -5.4461 L 10.9575 -4.1556 L 11.3785 -2.8045 L 11.6336 -1.4126 L 11.719 0.0 L 11.6336 1.4126 L 11.3785 2.8045 L 10.9575 4.1556 L 10.3766 5.4461 L 9.6445 6.6571 L 8.7718 7.7711 L 7.7711 8.7718 L 6.6571 9.6445 L 5.4461 10.3766 z M -6.956 -0.7838 L -7.0 0.0 L -6.956 0.7838 L -6.8247 1.5563 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5567 6.8247 L -0.7838 6.956 L 0.0 7.0 L 0.7838 6.956 L 1.5576 6.8245 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8247 1.5563 L 6.956 0.7838 L 7.0 0.0 L 6.956 -0.7838 L 6.8247 -1.5563 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5576 -6.8245 L 0.7838 -6.956 L 0.0 -7.0 L -0.7838 -6.956 L -1.5567 -6.8247 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8247 -1.5563 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+	</g>
+<!--End Layer Data-->
+<!--beginningOfControlSection='true' must be there or else the control boxes will be carved-->
+	<g id='controls' beginningOfControlSection='true' inkscape:groupmode='layer' inkscape:label='Controls'>
+<!--id='isoControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='isoControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='hidden'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<circle id='globe' cx='120' cy='120' fill='gray' r='100' />
+			<circle id='cover' cx='120' cy='120' fill='silver' r='33' />
+			<circle id='observer' fill='darkslateblue' r='12' />
+			<text id='latitudeIso' x='20' y='260' >Latitude</text>
+			<text fill='darkslateblue' onclick='displayIsoByLatitude(globalLatitude-1.0)' x='198' y='260' >&lt;</text>
+			<text fill='darkslateblue' onclick='displayIsoByLatitude(globalLatitude+1.0)' x='213' y='260' >&gt;</text>
+			<text id='longitudeIso' x='20' y='280' >Longitude</text>
+			<text fill='darkslateblue' onclick='displayIsoByLongitude(globalLongitude-1.0)' x='198' y='280' >&lt;</text>
+			<text fill='darkslateblue' onclick='displayIsoByLongitude(globalLongitude+1.0)' x='213' y='280' >&gt;</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleIso' x='65' y='300' >1</text>
+			<text fill='darkslateblue' onclick='changeScaleIso(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleIso(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXIso' y='20' >X: -11.919 mm</text>
+				<text id='minYIso' y='40' >Y: -11.919 mm</text>
+				<text id='minZIso' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXIso' y='20' >X: 11.919 mm</text>
+				<text id='maxYIso' y='40' >Y: 11.919 mm</text>
+				<text id='maxZIso' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXIso' y='20' >X: 23.838 mm</text>
+				<text id='dimYIso' y='40' >Y: 23.838 mm</text>
+				<text id='dimZIso' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightIso' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersIso' y='40' >Number of Layers: 30</text>
+				<text id='volumeIso' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+<!--id='layerControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='layerControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='hidden'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<path d='M 66 164 h76 v6 l18 -9 l-18 -9 v6 h-70 v-70 h6 l-9 -18 l-9 18 h6 z' stroke-width='0' />
+<!--<path stroke='#000' stroke-width='3' d='M 20 20 h5 l-5 -10 l-5 10 h5 v35 h35 v-5 l10 5 l-10 5 v-5 h-35 z'/>-->
+			<text text-anchor='middle' x='68' y='64' >Y</text>
+			<text x='165' y='166' >X</text>
+			<text id='minIndexLayer' x='20' y='245' >0</text>
+			<rect id='slider' fill='gray' height='24' width='170' x='32' y='230' />
+			<circle id='thumb' cx='42' cy='242' fill='darkslateblue' r='12' />
+			<text id='maxIndexLayer' x='203' y='245' >1</text>
+			<text id='currentIndexLayer' x='20' y='280' >Layer</text>
+			<text id='decreaseLayerIndex' fill='darkslateblue' onclick='displayLayer(globalLayerIndex-1)' x='198' y='280' >&lt;</text>
+			<text id='increaseLayerIndex' fill='darkslateblue' onclick='displayLayer(globalLayerIndex+1)' x='213' y='280' >&gt;</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleLayer' x='65' y='300' >1</text>
+			<text fill='darkslateblue' onclick='changeScaleLayer(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleLayer(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXLayer' y='20' >X: -11.919 mm</text>
+				<text id='minYLayer' y='40' >Y: -11.919 mm</text>
+				<text id='minZLayer' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXLayer' y='20' >X: 11.919 mm</text>
+				<text id='maxYLayer' y='40' >Y: 11.919 mm</text>
+				<text id='maxZLayer' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXLayer' y='20' >X: 23.838 mm</text>
+				<text id='dimYLayer' y='40' >Y: 23.838 mm</text>
+				<text id='dimZLayer' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightLayer' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersLayer' y='40' >Number of Layers: 30</text>
+				<text id='volumeLayer' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+<!--id='scrollControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='scrollControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='visible'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<path d='M 66 164 h76 v6 l18 -9 l-18 -9 v6 h-70 v-70 h6 l-9 -18 l-9 18 h6 z' stroke-width='0' />
+			<text text-anchor='middle' x='68' y='64' >Y</text>
+			<text x='165' y='166' >X</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleScroll' x='65' y='300' >: 1</text>
+			<text fill='darkslateblue' onclick='changeScaleScroll(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleScroll(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXScroll' y='20' >X: -11.919 mm</text>
+				<text id='minYScroll' y='40' >Y: -11.919 mm</text>
+				<text id='minZScroll' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXScroll' y='20' >X: 11.919 mm</text>
+				<text id='maxYScroll' y='40' >Y: 11.919 mm</text>
+				<text id='maxZScroll' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXScroll' y='20' >X: 23.838 mm</text>
+				<text id='dimYScroll' y='40' >Y: 23.838 mm</text>
+				<text id='dimZScroll' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightScroll' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersScroll' y='40' >Number of Layers: 30</text>
+				<text id='volumeScroll' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+		<text id='isoViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewIso()' text-anchor='middle' visibility='visible' x='80' y='30' >[Iso View]</text>
+		<text id='isoViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='hidden' x='76' y='30' >Iso View</text>
+		<text id='layerViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewLayer()' text-anchor='middle' visibility='visible' x='240' y='30' >[Layer View]</text>
+		<text id='layerViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='hidden' x='236' y='30' >Layer View</text>
+		<text id='scrollViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewScroll()' text-anchor='middle' visibility='hidden' x='400' y='30' >[Scroll View]</text>
+		<text id='scrollViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='visible' x='396' y='30' >Scroll View</text>
+	</g>
+</svg>

svg/testfiles/belt_pulley3.skeinforge.small.svg

@@ -0,0 +1,515 @@
+<?xml version='1.0' standalone='no'?>
+<!--Written in KDevelop (http://www.kdevelop.org/)-->
+<svg baseProfile='full' contentScriptType='text/ecmascript' contentStyleType='text/css' height='4003.518px' onload='init()' preserveAspectRatio='xMidYMid meet' version='1.0' width='516.0px' xmlns='http://www.w3.org/2000/svg' xmlns:inkscape='http://www.inkscape.org/namespaces/inkscape' xmlns:slice='http://www.reprap.org/slice' xmlns:xlink='http://www.w3.org/1999/xlink' zoomAndPan='magnify'>
+	<metadata>
+		<slice:layers id='sliceData' controlBoxHeight='720' controlBoxWidth='240' decimalPlacesCarried='4' edgeWidth='0.72' layerHeight='0.4' margin='20' marginTop='60' maxX='11.919' maxY='11.919' maxZ='10.0' minX='-11.919' minY='-11.919' minZ='-2.0' procedureName='carve' svgMinWidth='516' template='svg_layer' textHeight='22.5' unitScale='3.7' version='0.1' yAxisPointingUpward='true' />
+	</metadata>
+	<script type='text/ecmascript'>
+<![CDATA[
+globalMetadata = document.getElementsByTagNameNS('http://www.reprap.org/slice', 'layers')[0];
+globalSliceMinX = globalMetadata.getAttribute('minX') * 1;
+globalSliceMaxX = globalMetadata.getAttribute('maxX') * 1;
+globalSliceMinY = globalMetadata.getAttribute('minY') * 1;
+globalSliceMaxY = globalMetadata.getAttribute('maxY') * 1;
+globalSliceMinZ = globalMetadata.getAttribute('minZ') * 1;
+globalSliceMaxZ = globalMetadata.getAttribute('maxZ') * 1;
+
+//Control var's
+globalLayerIndex = 0; //Number of currently viewed layer (zero index)
+globalLatitude = 60.0;
+globalLongitude = 45.0;
+globalControlBoxHeight = globalMetadata.getAttribute('controlBoxHeight') * 1;
+globalControlBoxWidth = globalMetadata.getAttribute('controlBoxWidth') * 1;
+globalSliding = false;
+globalObserving = false
+
+//Display var's
+globalMargin = globalMetadata.getAttribute('margin') * 1;
+globalMarginTop = globalMetadata.getAttribute('marginTop') * 1;
+globalDimensionX = globalSliceMaxX - globalSliceMinX;
+globalDimensionY = globalSliceMaxY - globalSliceMinY;
+globalDimensionZ = globalSliceMaxZ - globalSliceMinZ;
+magnitudeXYSquared = globalDimensionX * globalDimensionX + globalDimensionY * globalDimensionY;
+globalDimensionMagnitude = Math.sqrt(magnitudeXYSquared + globalDimensionZ * globalDimensionZ);
+globalGlobeTravelRadian = 0.0;
+globalGlobeInnerObserverRadius = 0.0;
+globalTextHeight = globalMetadata.getAttribute('textHeight') * 1.0;
+globalUnitScale = globalMetadata.getAttribute('unitScale') * 1.0;
+globalXOffset = globalControlBoxWidth + globalMargin + globalMargin;
+globalYOffset = globalMargin + globalMarginTop;
+globalZoomScale = 1.0; //Default 1:1 may need smaller scale for large objects
+globalScale = globalUnitScale * globalZoomScale;
+
+//Globals to be set in init
+globalLayers = [];
+globalSlider = 0;
+globalThumb = 0;
+globalThumbRadius = 0.0;
+globalSliderWidthMinusDiameter = 0.0;
+
+
+function changeScale(newScale) {
+	globalZoomScale = newScale;
+	globalScale = globalUnitScale * globalZoomScale;
+	if (globalZoomScale >=1) { //dont scale line thickness for large display scale
+		document.getElementById('layerData').setAttributeNS(null, 'stroke-width', 2.0 / (globalScale));
+	}
+}
+
+function changeScaleIso(newScale) {
+	changeScale(newScale);
+	viewIso();
+}
+
+function changeScaleLayer(newScale) {
+	changeScale(newScale);
+	viewLayer();
+}
+
+function changeScaleScroll(newScale) {
+	changeScale(newScale);
+	viewScroll();
+}
+
+function displayIso(latitude, longitude) {
+	latitude = Math.max(0.0, latitude);
+	latitude = Math.min(89.0, latitude);
+	globalLatitude = Math.round(latitude);
+	globalLongitude = Math.round((longitude + 540.0) % 360.0) - 180.0;
+	latitudeRadians = getRadians(globalLatitude);
+	longitudeWiddershinsRadians = getRadians(90.0 - globalLongitude);
+	unitX = Math.cos(longitudeWiddershinsRadians);
+	unitY = Math.sin(longitudeWiddershinsRadians);
+	latitudeOverLayers = globalDimensionZ / globalLayers.length;
+	globalOneOverUnitScaleString = (1.0 / globalUnitScale).toString();
+	yScale = -1.0 * globalScale * Math.cos(latitudeRadians);
+	scaleRotateCenterString = ' scale(' + globalScale + ', ' + yScale + ')';
+	scaleRotateCenterString += ' rotate(' + (-1.0 * globalLongitude).toString() + ')';
+	centerX = (-0.5 * globalDimensionX - globalSliceMinX).toString();
+	centerY = (-0.5 * globalDimensionY - globalSliceMinY).toString();
+	scaleRotateCenterString += ' translate(' + centerX + ', ' + centerY + ')';
+	x = 0.5 * globalDimensionMagnitude * globalScale + globalXOffset;
+	halfLengthMinusOne = 0.5 * (globalLayers.length - 1);
+	for (var i in globalLayers) {
+		latitudeZSin = Math.sin(latitudeRadians) * (i - halfLengthMinusOne) * latitudeOverLayers
+		y = globalScale * (0.5 * globalDimensionMagnitude - latitudeZSin) + globalYOffset;
+//		y = globalDimensionY * globalScale + globalYOffset - i * unitY * latitudeOverLayers;
+		transformString = ' translate(' + x + ', ' + y + ')';
+		globalLayers[i].setAttributeNS(null, 'transform', transformString + scaleRotateCenterString);
+	}
+	setText('latitudeIso', 'Latitude: ' + globalLatitude.toString() + '°');
+	setText('longitudeIso', 'Longitude: ' + globalLongitude.toString() + '°');
+	globeMoveableRadius = globalGlobeTravelRadian * latitudeRadians + globalGlobeInnerObserverRadius;
+	globalObserver.setAttribute('cx', globalGlobeCenterX + unitX * globeMoveableRadius);
+	globalObserver.setAttribute('cy', globalGlobeCenterY - unitY * globeMoveableRadius);
+}
+
+function displayIsoByLatitude(latitude) {
+	displayIso(latitude, globalLongitude);
+}
+
+function displayIsoByLongitude(longitude) {
+	displayIso(globalLatitude, longitude);
+}
+
+function displayLayer(layerNum) {
+	if (globalLayers.length <= 1) {
+		document.getElementById('maxIndexLayer').setAttributeNS(null, 'visibility', 'hidden');
+		document.getElementById('minIndexLayer').setAttributeNS(null, 'visibility', 'hidden');
+		globalSlider.setAttributeNS(null, 'visibility', 'hidden');
+		globalThumb.setAttributeNS(null, 'visibility', 'hidden');
+	}
+	if (layerNum <= 0) {
+		document.getElementById('decreaseLayerIndex').setAttributeNS(null, 'visibility', 'hidden');
+	}
+	else {
+		document.getElementById('decreaseLayerIndex').setAttributeNS(null, 'visibility', 'visible');
+	}
+	if (layerNum >= globalLayers.length - 1) {
+		document.getElementById('increaseLayerIndex').setAttributeNS(null, 'visibility', 'hidden');
+	}
+	else {
+		document.getElementById('increaseLayerIndex').setAttributeNS(null, 'visibility', 'visible');
+	}
+	if (layerNum < 0 || layerNum >= globalLayers.length) {
+		return
+	}
+	globalLayers[globalLayerIndex].setAttributeNS(null, 'visibility', 'hidden');
+	currentLayerElement = globalLayers[layerNum]
+	currentLayerElement.setAttributeNS(null, 'visibility', 'visible');
+	globalLayerIndex = layerNum;
+	setText('currentIndexLayer', 'Layer: ' + globalLayerIndex.toString() + ', ' + currentLayerElement.getAttribute('id'));
+	//Slider
+	if (!globalSliding) {
+		placeThumb(globalSliderWidthMinusDiameter / (globalLayers.length - 1) * globalLayerIndex + globalThumbRadius);
+	}
+}
+
+function getDegrees(radians) {
+	return radians / Math.PI * 180.0;
+}
+
+function getRadians(degrees) {
+	return degrees / 180.0 * Math.PI;
+}
+
+function getScaleTransformString(scale) {
+	scaleTransformString = 'scale(' + scale + ' ' + (scale * - 1)
+	return scaleTransformString + ') translate(' + (globalSliceMinX * - 1) + ' ' + (globalSliceMinY * - 1) + ')';
+}
+
+function getWidth() {
+	return (globalDimensionX * globalScale) + globalXOffset
+}
+
+function hideElements(elementNames) {
+	for (var elementNameIndex in elementNames) {
+		document.getElementById(elementNames[elementNameIndex]).setAttributeNS(null, 'visibility', 'hidden');
+	}
+}
+
+function init() {
+	//Find only layer groups
+	globe = document.getElementById('globe');
+	globalGlobeCenterX = globe.getAttribute('cx') * 1;
+	globalGlobeCenterXWindow = globalGlobeCenterX + globalMargin;
+	globalGlobeCenterY = globe.getAttribute('cy') * 1;
+	globalGlobeCenterYWindow = globalGlobeCenterX + globalMarginTop;
+	globalObserver = document.getElementById('observer');
+	globeRadius = globe.getAttribute('r') * 1.0;
+	observerRadius = globalObserver.getAttribute('r') * 1.0;
+	globalGlobeInnerObserverRadius = document.getElementById('cover').getAttribute('r') * 1.0 + observerRadius;
+	globalGlobeTravelRadian = getDegrees(globeRadius - globalGlobeInnerObserverRadius - observerRadius) / 89.0;
+	globalSlider = document.getElementById('slider');
+	globalSliderX = globalSlider.getAttribute('x') * 1;
+	globalSliderXWindow = globalSliderX + globalMargin
+	globalThumb = document.getElementById('thumb');
+	globalThumbRadius = globalThumb.getAttribute('r') * 1;
+	globalSliderWidthMinusRadius = globalSlider.getAttribute('width') * 1 - globalThumbRadius;
+	globalSliderWidthMinusDiameter = globalSliderWidthMinusRadius - globalThumbRadius;
+	var allGroups = document.getElementsByTagName('g');
+	for (var i = 0; i < allGroups.length; i++) {
+		if (allGroups[i].id.indexOf('z:') == 0) {
+			globalLayers.push(allGroups[i]);
+		}
+	}
+
+	//Slider
+	layerControlBox = document.getElementById('layerControlBox');
+	layerControlBox.addEventListener('mouseup', sliderUp, false);
+	layerControlBox.addEventListener('mousemove', sliderMove, false);
+	globalSlider.addEventListener('mousedown', sliderDownMove, false);
+	globalThumb.addEventListener('mousedown', sliderDownMove, false);
+	//Observer
+	isoControlBox = document.getElementById('isoControlBox');
+	isoControlBox.addEventListener('mouseup', observerUp, false);
+	isoControlBox.addEventListener('mousemove', observerMove, false);
+	globe.addEventListener('mousedown', observerDownMove, false);
+	globalObserver.addEventListener('mousedown', observerDownMove, false);
+	
+	//Control box data
+	setText('maxIndexLayer', globalLayers.length - 1);
+	changeScaleLayer(globalZoomScale);
+}
+
+function observerDown(event) {
+	globalObserving = true;
+}
+
+function observerDownMove(event) {
+	globalObserving = true;
+	observerMove(event);
+}
+
+function observerMove(event) {
+	if (!globalObserving) {
+		return;
+	}
+	observerX = event.clientX - globalGlobeCenterXWindow + window.pageXOffset;
+	observerY = event.clientY - globalGlobeCenterYWindow + window.pageYOffset;
+	distanceFromCenter = Math.sqrt(observerX * observerX + observerY * observerY);
+	latitudeRadians = (distanceFromCenter - globalGlobeInnerObserverRadius) / globalGlobeTravelRadian;
+	longitudeRadians = Math.atan2(observerX, -observerY);
+	displayIso(getDegrees(latitudeRadians), getDegrees(longitudeRadians));
+}
+
+function observerUp(event) {
+	globalObserving = false;
+}
+
+function placeThumb(value) {
+	if (globalLayers.length > 1) {
+		globalThumb.setAttribute('cx', globalSliderX + value);
+	}
+}
+
+function setScaleText(scaleID) {
+	setText(scaleID, ': ' + globalZoomScale);
+}
+
+function setSVG(width, height) {
+	rootSVG = document.getElementsByTagName('svg')[0];
+	svgMinWidth = globalMetadata.getAttribute('svgMinWidth') * 1;
+	height = Math.max(globalControlBoxHeight + globalMargin + globalMarginTop, height);
+	width = Math.max(svgMinWidth, width);
+	rootSVG.setAttributeNS(null, 'width', width + 'px')
+	rootSVG.setAttributeNS(null, 'height', height + 'px')
+}
+
+function setText(id, str) {
+	e = document.getElementById(id)
+	if (e != null)
+		e.firstChild.nodeValue = str;
+}
+
+function showElements(elementNames) {
+	for (var elementNameIndex in elementNames) {
+		document.getElementById(elementNames[elementNameIndex]).setAttributeNS(null, 'visibility', 'visible');
+	}
+}
+
+function sliderDown(event) {
+	globalSliding = true;
+}
+
+function sliderDownMove(event) {
+	globalSliding = true;
+	sliderMove(event);
+}
+
+function sliderMove(event) {
+	if (!globalSliding) {
+		return;
+	}
+	value = event.clientX - globalSliderXWindow + window.pageXOffset;
+	if (value >= globalThumbRadius && value <= globalSliderWidthMinusRadius) {
+		placeThumb(value);
+		zoneWidth = globalSliderWidthMinusDiameter / (globalLayers.length);
+		newLayer = Math.round((value - globalThumbRadius - 0.5 * zoneWidth) / zoneWidth)
+		if (newLayer != globalLayerIndex) {
+			displayLayer(newLayer)
+		}
+	}
+}
+
+function sliderUp(event) {
+	globalSliding = false;
+}
+
+function viewIso() {
+	height = (globalDimensionMagnitude * globalScale) + globalYOffset;
+	setSVG((globalDimensionMagnitude * globalScale) + globalXOffset, height);
+	for (var i in globalLayers) {
+//		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + globalMargin + ' ' + height + ')');
+		globalLayers[i].setAttributeNS(null, 'visibility', 'visible');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'hidden');
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			  pathElements[pathElementIndex].setAttributeNS(null, 'transform', '');
+		  }
+	  }
+	  //show control box
+	hideElements(['decreaseLayerIndex', 'increaseLayerIndex', 'isoViewButton', 'layerControlBox', 'layerViewLabel', 'scrollControlBox', 'scrollViewLabel']);
+	showElements(['isoControlBox', 'isoViewLabel', 'layerViewButton', 'scrollViewButton']);
+	displayIso(globalLatitude, globalLongitude);
+	setScaleText('scaleIso');
+}
+
+function viewLayer() {
+	//Set svg size and view port
+	height = (globalDimensionY * globalScale) + globalYOffset;
+	setSVG(getWidth(), height);
+	//move and hide all layers 
+	for (var i in globalLayers) {
+		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + globalXOffset + ' ' + height + ')');
+		globalLayers[i].setAttributeNS(null, 'visibility', 'hidden');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'hidden');
+		transform = getScaleTransformString(globalScale);
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			pathElements[pathElementIndex].setAttributeNS(null, 'transform', transform);
+		}
+	}
+
+	//show control box
+	hideElements(['isoControlBox', 'isoViewLabel', 'layerViewButton', 'scrollControlBox', 'scrollViewLabel'])
+	showElements(['isoViewButton', 'layerControlBox', 'layerViewLabel', 'scrollViewButton'])
+	
+	//show current layer
+	displayLayer(globalLayerIndex);
+	setScaleText('scaleLayer');
+}
+
+function viewScroll() {
+	//Set svg size and view port
+	yDimensionScale = globalDimensionY * globalScale
+	singleHeight = (globalMargin + yDimensionScale + globalTextHeight)
+	height = globalLayers.length * singleHeight + globalMargin + globalMargin + globalYOffset;
+	setSVG(getWidth(), height);
+
+	//move and show all layers 
+	for (var i in globalLayers) {
+		x = globalXOffset;
+		y = i * singleHeight + yDimensionScale + globalYOffset;
+		transform = getScaleTransformString(globalScale);
+		globalLayers[i].setAttributeNS(null, 'transform', 'translate(' + x + ', ' + y + ')');
+		pathElements = globalLayers[i].getElementsByTagName('path');
+		for (var pathElementIndex = 0; pathElementIndex < pathElements.length; pathElementIndex++) {
+			pathElements[pathElementIndex].setAttributeNS(null, 'transform', transform);
+		}
+		globalLayers[i].setAttributeNS(null, 'visibility', 'visible');
+		globalLayers[i].getElementsByTagName('text')[0].setAttributeNS(null, 'visibility', 'visible');
+	}
+
+	//show control box
+	hideElements(['isoControlBox', 'isoViewLabel', 'layerControlBox', 'layerViewLabel', 'scrollViewButton'])
+	showElements(['isoViewButton', 'layerViewButton', 'scrollControlBox', 'scrollViewLabel'])
+	setScaleText('scaleScroll');
+}
+	]]>
+	</script>
+	<title >belt_pulley3.stl - Slice Layers</title>
+<!--Begin Layer Data   -->
+	<g id='layerData' fill='#556B2F' fill-rule='evenodd' font-family='Arial' font-size='15px' font-weight='bold' inkscape:groupmode='layer' inkscape:label='Slice Layers' stroke='#00F' stroke-width='0.54px'>
+<!--id='sliceElementTemplate' must be there or else the slice template will not be found-->
+		<g id='z:-1.8' inkscape:groupmode='layer' inkscape:label='Layer 0, z:-1.8' transform='translate(280.0, 168.2006)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate-1.8' fill='#000' stroke='none' y='15' >Layer 0, z:-1.8</text>
+			<path d='M -11.6336 1.4126 L -11.719 0.0 L -11.6336 -1.4126 L -11.3785 -2.8045 L -10.9575 -4.1556 L -10.3766 -5.4461 L -9.6445 -6.6571 L -8.7718 -7.7711 L -7.7711 -8.7718 L -6.6571 -9.6445 L -5.4461 -10.3766 L -4.1556 -10.9575 L -2.8045 -11.3785 L -1.4126 -11.6336 L 0.0 -11.719 L 1.4126 -11.6336 L 2.8045 -11.3785 L 4.1556 -10.9575 L 5.4461 -10.3766 L 6.6571 -9.6445 L 7.7711 -8.7718 L 8.7718 -7.7711 L 9.6445 -6.6571 L 10.3766 -5.4461 L 10.9575 -4.1556 L 11.3785 -2.8045 L 11.6336 -1.4126 L 11.719 0.0 L 11.6336 1.4126 L 11.3785 2.8045 L 10.9575 4.1556 L 10.3766 5.4461 L 9.6445 6.6571 L 8.7718 7.7711 L 7.7711 8.7718 L 6.6571 9.6445 L 5.4461 10.3766 L 4.1556 10.9575 L 2.8045 11.3785 L 1.4126 11.6336 L 0.0 11.719 L -1.4126 11.6336 L -2.8045 11.3785 L -4.1556 10.9575 L -5.4461 10.3766 L -6.6571 9.6445 L -7.7711 8.7718 L -8.7718 7.7711 L -9.6445 6.6571 L -10.3766 5.4461 L -10.9575 4.1556 L -11.3785 2.8045 z M -4.0 -1.5 L -4.0 1.5 L -6.8343 1.5 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5 6.8343 L -1.5 4.0 L 1.5 4.0 L 1.5 6.8343 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8343 1.5 L 4.0 1.5 L 4.0 -1.5 L 6.8343 -1.5 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5 -6.8343 L 1.5 -4.0 L -1.5 -4.0 L -1.5 -6.8343 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8343 -1.5 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+		<g id='z:-1.4' inkscape:groupmode='layer' inkscape:label='Layer 1, z:-1.4' transform='translate(280.0, 298.9012)'>
+<!--id='layerTextTemplate' must be there so that the text could be removed if necessary-->
+			<text id='layerTextTemplate-1.4' fill='#000' stroke='none' y='15' >Layer 1, z:-1.4</text>
+			<path d='M -11.2365 1.3644 L -11.319 0.0 L -11.2365 -1.3644 L -10.9901 -2.7088 L -10.5835 -4.0138 L -10.0224 -5.2602 L -9.3154 -6.4299 L -8.4724 -7.5059 L -7.5059 -8.4724 L -6.4299 -9.3154 L -5.2602 -10.0224 L -4.0138 -10.5835 L -2.7088 -10.9901 L -1.3644 -11.2365 L 0.0 -11.319 L 1.3644 -11.2365 L 2.7088 -10.9901 L 4.0138 -10.5835 L 5.2602 -10.0224 L 6.4299 -9.3154 L 7.5059 -8.4724 L 8.4724 -7.5059 L 9.3154 -6.4299 L 10.0224 -5.2602 L 10.5835 -4.0138 L 10.9901 -2.7088 L 11.2365 -1.3644 L 11.319 0.0 L 11.2365 1.3644 L 10.9901 2.7088 L 10.5835 4.0138 L 10.0224 5.2602 L 9.3154 6.4299 L 8.4724 7.5059 L 7.5059 8.4724 L 6.4299 9.3154 L 5.2602 10.0224 L 4.0138 10.5835 L 2.7088 10.9901 L 1.3644 11.2365 L 0.0 11.319 L -1.3644 11.2365 L -2.7088 10.9901 L -4.0138 10.5835 L -5.2602 10.0224 L -6.4299 9.3154 L -7.5059 8.4724 L -8.4724 7.5059 L -9.3154 6.4299 L -10.0224 5.2602 L -10.5835 4.0138 L -10.9901 2.7088 z M -4.0 -1.5 L -4.0 1.5 L -6.8343 1.5 L -6.6072 2.3119 L -6.3068 3.0372 L -5.9271 3.7242 L -5.4728 4.3644 L -4.9497 4.9497 L -4.3644 5.4728 L -3.7242 5.9271 L -3.0372 6.3068 L -2.3119 6.6072 L -1.5 6.8343 L -1.5 4.0 L 1.5 4.0 L 1.5 6.8343 L 2.3119 6.6072 L 3.0372 6.3068 L 3.7242 5.9271 L 4.3644 5.4728 L 4.9497 4.9497 L 5.4728 4.3644 L 5.9271 3.7242 L 6.3068 3.0372 L 6.6072 2.3119 L 6.8343 1.5 L 4.0 1.5 L 4.0 -1.5 L 6.8343 -1.5 L 6.6072 -2.3119 L 6.3068 -3.0372 L 5.9271 -3.7242 L 5.4728 -4.3644 L 4.9497 -4.9497 L 4.3644 -5.4728 L 3.7242 -5.9271 L 3.0372 -6.3068 L 2.3119 -6.6072 L 1.5 -6.8343 L 1.5 -4.0 L -1.5 -4.0 L -1.5 -6.8343 L -2.3119 -6.6072 L -3.0372 -6.3068 L -3.7242 -5.9271 L -4.3644 -5.4728 L -4.9497 -4.9497 L -5.4728 -4.3644 L -5.9271 -3.7242 L -6.3068 -3.0372 L -6.6072 -2.3119 L -6.8343 -1.5 z' transform='scale(3.7, -3.7) translate(11.919, 11.919)' />
+		</g>
+	</g>
+<!--End Layer Data-->
+<!--beginningOfControlSection='true' must be there or else the control boxes will be carved-->
+	<g id='controls' beginningOfControlSection='true' inkscape:groupmode='layer' inkscape:label='Controls'>
+<!--id='isoControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='isoControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='hidden'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<circle id='globe' cx='120' cy='120' fill='gray' r='100' />
+			<circle id='cover' cx='120' cy='120' fill='silver' r='33' />
+			<circle id='observer' fill='darkslateblue' r='12' />
+			<text id='latitudeIso' x='20' y='260' >Latitude</text>
+			<text fill='darkslateblue' onclick='displayIsoByLatitude(globalLatitude-1.0)' x='198' y='260' >&lt;</text>
+			<text fill='darkslateblue' onclick='displayIsoByLatitude(globalLatitude+1.0)' x='213' y='260' >&gt;</text>
+			<text id='longitudeIso' x='20' y='280' >Longitude</text>
+			<text fill='darkslateblue' onclick='displayIsoByLongitude(globalLongitude-1.0)' x='198' y='280' >&lt;</text>
+			<text fill='darkslateblue' onclick='displayIsoByLongitude(globalLongitude+1.0)' x='213' y='280' >&gt;</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleIso' x='65' y='300' >1</text>
+			<text fill='darkslateblue' onclick='changeScaleIso(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleIso(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXIso' y='20' >X: -11.919 mm</text>
+				<text id='minYIso' y='40' >Y: -11.919 mm</text>
+				<text id='minZIso' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXIso' y='20' >X: 11.919 mm</text>
+				<text id='maxYIso' y='40' >Y: 11.919 mm</text>
+				<text id='maxZIso' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXIso' y='20' >X: 23.838 mm</text>
+				<text id='dimYIso' y='40' >Y: 23.838 mm</text>
+				<text id='dimZIso' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightIso' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersIso' y='40' >Number of Layers: 30</text>
+				<text id='volumeIso' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+<!--id='layerControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='layerControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='hidden'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<path d='M 66 164 h76 v6 l18 -9 l-18 -9 v6 h-70 v-70 h6 l-9 -18 l-9 18 h6 z' stroke-width='0' />
+<!--<path stroke='#000' stroke-width='3' d='M 20 20 h5 l-5 -10 l-5 10 h5 v35 h35 v-5 l10 5 l-10 5 v-5 h-35 z'/>-->
+			<text text-anchor='middle' x='68' y='64' >Y</text>
+			<text x='165' y='166' >X</text>
+			<text id='minIndexLayer' x='20' y='245' >0</text>
+			<rect id='slider' fill='gray' height='24' width='170' x='32' y='230' />
+			<circle id='thumb' cx='42' cy='242' fill='darkslateblue' r='12' />
+			<text id='maxIndexLayer' x='203' y='245' >1</text>
+			<text id='currentIndexLayer' x='20' y='280' >Layer</text>
+			<text id='decreaseLayerIndex' fill='darkslateblue' onclick='displayLayer(globalLayerIndex-1)' x='198' y='280' >&lt;</text>
+			<text id='increaseLayerIndex' fill='darkslateblue' onclick='displayLayer(globalLayerIndex+1)' x='213' y='280' >&gt;</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleLayer' x='65' y='300' >1</text>
+			<text fill='darkslateblue' onclick='changeScaleLayer(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleLayer(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXLayer' y='20' >X: -11.919 mm</text>
+				<text id='minYLayer' y='40' >Y: -11.919 mm</text>
+				<text id='minZLayer' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXLayer' y='20' >X: 11.919 mm</text>
+				<text id='maxYLayer' y='40' >Y: 11.919 mm</text>
+				<text id='maxZLayer' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXLayer' y='20' >X: 23.838 mm</text>
+				<text id='dimYLayer' y='40' >Y: 23.838 mm</text>
+				<text id='dimZLayer' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightLayer' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersLayer' y='40' >Number of Layers: 30</text>
+				<text id='volumeLayer' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+<!--id='scrollControlBox' must be there so that the controls could be removed if necessary-->
+		<g id='scrollControlBox' fill='#000' font-family='Arial' font-size='15px' font-weight='bold' transform='translate(20, 60)' visibility='visible'>
+			<rect fill='silver' height='720' stroke='gray' stroke-width='4px' width='240' />
+			<path d='M 66 164 h76 v6 l18 -9 l-18 -9 v6 h-70 v-70 h6 l-9 -18 l-9 18 h6 z' stroke-width='0' />
+			<text text-anchor='middle' x='68' y='64' >Y</text>
+			<text x='165' y='166' >X</text>
+			<text x='20' y='300' >Scale</text>
+			<text id='scaleScroll' x='65' y='300' >: 1</text>
+			<text fill='darkslateblue' onclick='changeScaleScroll(globalZoomScale/2)' x='198' y='300' >&lt;</text>
+			<text fill='darkslateblue' onclick='changeScaleScroll(globalZoomScale*2)' x='213' y='300' >&gt;</text>
+			<g transform='translate(20, 340)'>
+				<text >Min</text>
+				<text id='minXScroll' y='20' >X: -11.919 mm</text>
+				<text id='minYScroll' y='40' >Y: -11.919 mm</text>
+				<text id='minZScroll' y='60' >Z: -2.0 mm</text>
+			</g>
+			<g transform='translate(20, 440)'>
+				<text >Max</text>
+				<text id='maxXScroll' y='20' >X: 11.919 mm</text>
+				<text id='maxYScroll' y='40' >Y: 11.919 mm</text>
+				<text id='maxZScroll' y='60' >Z: 10.0 mm</text>
+			</g>
+			<g transform='translate(20, 540)'>
+				<text >Dimension</text>
+				<text id='dimXScroll' y='20' >X: 23.838 mm</text>
+				<text id='dimYScroll' y='40' >Y: 23.838 mm</text>
+				<text id='dimZScroll' y='60' >Z: 12.0 mm</text>
+			</g>
+			<g transform='translate(20, 640)'>
+				<text >Statistics</text>
+				<text id='layerHeightScroll' y='20' >Layer Height: 0.4 mm</text>
+				<text id='numberOfLayersScroll' y='40' >Number of Layers: 30</text>
+				<text id='volumeScroll' y='60' >Volume: 1.8836 cm3</text>
+			</g>
+		</g>
+		<text id='isoViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewIso()' text-anchor='middle' visibility='visible' x='80' y='30' >[Iso View]</text>
+		<text id='isoViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='hidden' x='76' y='30' >Iso View</text>
+		<text id='layerViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewLayer()' text-anchor='middle' visibility='visible' x='240' y='30' >[Layer View]</text>
+		<text id='layerViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='hidden' x='236' y='30' >Layer View</text>
+		<text id='scrollViewButton' fill='darkslateblue' font-size='18px' font-weight='normal' onclick='viewScroll()' text-anchor='middle' visibility='hidden' x='400' y='30' >[Scroll View]</text>
+		<text id='scrollViewLabel' fill='darkslateblue' font-size='24px' font-weight='bold' text-anchor='middle' visibility='visible' x='396' y='30' >Scroll View</text>
+	</g>
+</svg>

svg/testfiles/belt_pulley3.slic3r.small.svg

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