Added pyglet-based STL viewer
Kliment Yanev
parent
567c1d2302
commit
d8406847c6
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@ -0,0 +1,533 @@
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#!/usr/bin/python
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import os
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import wx,math,stltool
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from wx import glcanvas
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import time
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import threading
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import pyglet
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pyglet.options['shadow_window'] = False
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pyglet.options['debug_gl'] = False
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from pyglet import gl
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from pyglet.gl import *
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class GLPanel(wx.Panel):
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'''A simple class for using OpenGL with wxPython.'''
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def __init__(self, parent, id, pos=wx.DefaultPosition,
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size=wx.DefaultSize, style=0):
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# Forcing a no full repaint to stop flickering
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style = style | wx.NO_FULL_REPAINT_ON_RESIZE
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#call super function
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super(GLPanel, self).__init__(parent, id, pos, size, style)
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#init gl canvas data
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self.GLinitialized = False
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attribList = (glcanvas.WX_GL_RGBA, # RGBA
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glcanvas.WX_GL_DOUBLEBUFFER, # Double Buffered
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glcanvas.WX_GL_DEPTH_SIZE, 24) # 24 bit
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# Create the canvas
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self.sizer = wx.BoxSizer(wx.HORIZONTAL)
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self.canvas = glcanvas.GLCanvas(self, attribList=attribList)
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self.sizer.Add(self.canvas, 1, wx.EXPAND)
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self.SetSizer(self.sizer)
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#self.sizer.Fit(self)
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self.Layout()
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# bind events
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self.canvas.Bind(wx.EVT_ERASE_BACKGROUND, self.processEraseBackgroundEvent)
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self.canvas.Bind(wx.EVT_SIZE, self.processSizeEvent)
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self.canvas.Bind(wx.EVT_PAINT, self.processPaintEvent)
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#==========================================================================
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# Canvas Proxy Methods
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#==========================================================================
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def GetGLExtents(self):
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'''Get the extents of the OpenGL canvas.'''
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return self.canvas.GetClientSize()
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def SwapBuffers(self):
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'''Swap the OpenGL buffers.'''
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self.canvas.SwapBuffers()
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#==========================================================================
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# wxPython Window Handlers
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#==========================================================================
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def processEraseBackgroundEvent(self, event):
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'''Process the erase background event.'''
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pass # Do nothing, to avoid flashing on MSWin
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def processSizeEvent(self, event):
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'''Process the resize event.'''
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if self.canvas.GetContext():
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# Make sure the frame is shown before calling SetCurrent.
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self.Show()
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self.canvas.SetCurrent()
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size = self.GetGLExtents()
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self.winsize = (size.width, size.height)
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self.width, self.height = size.width, size.height
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self.OnReshape(size.width, size.height)
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self.canvas.Refresh(False)
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event.Skip()
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def processPaintEvent(self, event):
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'''Process the drawing event.'''
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self.canvas.SetCurrent()
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# This is a 'perfect' time to initialize OpenGL ... only if we need to
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if not self.GLinitialized:
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self.OnInitGL()
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self.GLinitialized = True
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self.OnDraw()
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event.Skip()
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def Destroy(self):
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#clean up the pyglet OpenGL context
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#self.pygletcontext.destroy()
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#call the super method
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super(wx.Panel, self).Destroy()
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#==========================================================================
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# GLFrame OpenGL Event Handlers
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#==========================================================================
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def OnInitGL(self):
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'''Initialize OpenGL for use in the window.'''
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#create a pyglet context for this panel
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self.pmat=(GLdouble * 16)()
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self.mvmat=(GLdouble * 16)()
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self.pygletcontext = Context(current_context)
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self.pygletcontext.set_current()
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self.dist=1000
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self.vpmat=None
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#normal gl init
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glClearColor(0, 0, 0, 0.5)
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glColor3f(1, 0, 0)
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glEnable(GL_DEPTH_TEST)
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glEnable(GL_CULL_FACE)
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# Uncomment this line for a wireframe view
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#glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
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# Simple light setup. On Windows GL_LIGHT0 is enabled by default,
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# but this is not the case on Linux or Mac, so remember to always
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# include it.
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glEnable(GL_LIGHTING)
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glEnable(GL_LIGHT0)
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glEnable(GL_LIGHT1)
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# Define a simple function to create ctypes arrays of floats:
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def vec(*args):
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return (GLfloat * len(args))(*args)
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glLightfv(GL_LIGHT0, GL_POSITION, vec(.5, .5, 1, 0))
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glLightfv(GL_LIGHT0, GL_SPECULAR, vec(.5, .5, 1, 1))
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glLightfv(GL_LIGHT0, GL_DIFFUSE, vec(1, 1, 1, 1))
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glLightfv(GL_LIGHT1, GL_POSITION, vec(1, 0, .5, 0))
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glLightfv(GL_LIGHT1, GL_DIFFUSE, vec(.5, .5, .5, 1))
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glLightfv(GL_LIGHT1, GL_SPECULAR, vec(1, 1, 1, 1))
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glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.5, 0, 0.3, 1))
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glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, vec(1, 1, 1, 1))
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glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 200)
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glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, vec(0,0.1,0,0.9))
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#create objects to draw
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#self.create_objects()
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def OnReshape(self, width, height):
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'''Reshape the OpenGL viewport based on the dimensions of the window.'''
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if not self.GLinitialized:
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self.OnInitGL()
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self.GLinitialized = True
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self.pmat=(GLdouble * 16)()
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self.mvmat=(GLdouble * 16)()
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glViewport(0, 0, width, height)
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glMatrixMode(GL_PROJECTION)
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glLoadIdentity()
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gluPerspective(60., width / float(height), .1, 1000.)
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glMatrixMode(GL_MODELVIEW)
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glLoadIdentity()
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#pyglet stuff
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self.vpmat=(GLint * 4)(0,0,*list(self.GetClientSize()))
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glGetDoublev(GL_PROJECTION_MATRIX,self.pmat)
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glGetDoublev(GL_MODELVIEW_MATRIX,self.mvmat)
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#glMatrixMode(GL_PROJECTION)
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# Wrap text to the width of the window
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if self.GLinitialized:
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self.pygletcontext.set_current()
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self.update_object_resize()
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def OnDraw(self, *args, **kwargs):
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"""Draw the window."""
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#clear the context
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self.canvas.SetCurrent()
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self.pygletcontext.set_current()
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
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#draw objects
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self.draw_objects()
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#update screen
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self.SwapBuffers()
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#==========================================================================
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# To be implemented by a sub class
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#==========================================================================
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def create_objects(self):
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'''create opengl objects when opengl is initialized'''
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pass
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def update_object_resize(self):
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'''called when the window recieves only if opengl is initialized'''
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pass
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def draw_objects(self):
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'''called in the middle of ondraw after the buffer has been cleared'''
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pass
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class stlview(object):
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list = None
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def __init__(self, facets, batch):
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# Create the vertex and normal arrays.
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vertices = []
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normals = []
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for i in facets:
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for j in i[1]:
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vertices.extend(j)
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normals.extend(i[0])
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# Create a list of triangle indices.
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indices = range(3*len(facets))#[[3*i,3*i+1,3*i+2] for i in xrange(len(facets))]
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#print indices[:10]
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self.vertex_list = batch.add_indexed(len(vertices)//3,
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GL_TRIANGLES,
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None,#group,
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indices,
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('v3f/static', vertices),
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('n3f/static', normals))
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def delete(self):
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self.vertex_list.delete()
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def trackball(p1x, p1y, p2x, p2y, r):
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TRACKBALLSIZE=r
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#float a[3]; /* Axis of rotation */
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#float phi; /* how much to rotate about axis */
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#float p1[3], p2[3], d[3];
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#float t;
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if (p1x == p2x and p1y == p2y):
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return [0.0,0.0,0.0,1.0]
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p1=[p1x,p1y,project_to_sphere(TRACKBALLSIZE,p1x,p1y)]
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p2=[p2x,p2y,project_to_sphere(TRACKBALLSIZE,p2x,p2y)]
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a=stltool.cross(p2,p1)
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d=map(lambda x,y:x-y,p1,p2)
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t = math.sqrt(sum(map(lambda x:x*x, d))) / (2.0*TRACKBALLSIZE)
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if (t > 1.0): t = 1.0
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if (t < -1.0): t = -1.0
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phi = 2.0 * math.asin(t)
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return axis_to_quat(a,phi)
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def vec(*args):
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return (GLfloat * len(args))(*args)
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def axis_to_quat(a,phi):
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#print a, phi
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lena=math.sqrt(sum(map(lambda x:x*x, a)))
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q=map(lambda x:x*(1/lena),a)
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q=map(lambda x:x*math.sin(phi/2.0),q)
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q.append(math.cos(phi/2.0))
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return q
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def build_rotmatrix(q):
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m=(GLdouble * 16)()
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m[0] = 1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2])
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m[1] = 2.0 * (q[0] * q[1] - q[2] * q[3]);
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m[2] = 2.0 * (q[2] * q[0] + q[1] * q[3]);
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m[3] = 0.0;
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m[4] = 2.0 * (q[0] * q[1] + q[2] * q[3]);
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m[5]= 1.0 - 2.0 * (q[2] * q[2] + q[0] * q[0]);
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m[6] = 2.0 * (q[1] * q[2] - q[0] * q[3]);
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m[7] = 0.0;
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m[8] = 2.0 * (q[2] * q[0] - q[1] * q[3]);
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m[9] = 2.0 * (q[1] * q[2] + q[0] * q[3]);
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m[10] = 1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]);
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m[11] = 0.0;
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m[12] = 0.0;
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m[13] = 0.0;
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m[14] = 0.0;
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m[15] = 1.0;
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return m
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def project_to_sphere(r, x, y):
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d = math.sqrt(x*x + y*y)
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if (d < r * 0.70710678118654752440):
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return math.sqrt(r*r - d*d)
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else:
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t = r / 1.41421356237309504880
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return t*t / d
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def mulquat(q1,rq):
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return [q1[3] * rq[0] + q1[0] * rq[3] + q1[1] * rq[2] - q1[2] * rq[1],
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q1[3] * rq[1] + q1[1] * rq[3] + q1[2] * rq[0] - q1[0] * rq[2],
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q1[3] * rq[2] + q1[2] * rq[3] + q1[0] * rq[1] - q1[1] * rq[0],
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q1[3] * rq[3] - q1[0] * rq[0] - q1[1] * rq[1] - q1[2] * rq[2]]
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class TestGlPanel(GLPanel):
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def __init__(self, parent, id=wx.ID_ANY, pos=(10, 10)):
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super(TestGlPanel, self).__init__(parent, id, wx.DefaultPosition, wx.DefaultSize, 0)
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self.batches=[]
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self.rot=0
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self.canvas.Bind(wx.EVT_MOUSE_EVENTS,self.move)
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self.initialized=1
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self.canvas.Bind(wx.EVT_MOUSEWHEEL,self.wheel)
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self.initp=None
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self.selected=0
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self.dist=200
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self.transv=[0, 0, -self.dist]
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self.basequat=[0,0,0,1]
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wx.CallAfter(self.forceresize)
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def forceresize(self):
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self.SetClientSize((self.GetClientSize()[0],self.GetClientSize()[1]+1))
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self.SetClientSize((self.GetClientSize()[0],self.GetClientSize()[1]-1))
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threading.Thread(target=self.update).start()
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self.initialized=0
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def move(self, event):
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if event.Dragging() and event.LeftIsDown():
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if self.initp==None:
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self.initp=event.GetPositionTuple()
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else:
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if event.ShiftDown():
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if self.selected<0:
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return
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p1=list(self.initp)
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p1[1]*=-1
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self.initp=None
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p2=list(event.GetPositionTuple())
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p2[1]*=-1
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self.batches[self.selected][0]=map(lambda old,new,original:original+(new-old), list(p1)+[0],list(p2)+[0],self.batches[0][0])
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return
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#print self.initp
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p1=self.initp
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self.initp=None
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p2=event.GetPositionTuple()
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sz=self.GetClientSize()
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p1x=(float(p1[0])-sz[0]/2)/(sz[0]/2)
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p1y=-(float(p1[1])-sz[1]/2)/(sz[1]/2)
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p2x=(float(p2[0])-sz[0]/2)/(sz[0]/2)
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p2y=-(float(p2[1])-sz[1]/2)/(sz[1]/2)
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#print p1x,p1y,p2x,p2y
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quat=trackball(p1x, p1y, p2x, p2y, -self.transv[2]/250.0)
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if self.rot:
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self.basequat=mulquat(self.basequat,quat)
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#else:
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glGetDoublev(GL_MODELVIEW_MATRIX,self.mvmat)
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#self.basequat=quatx
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mat=build_rotmatrix(self.basequat)
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glLoadIdentity()
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#glTranslatef(-self.transv[0],-self.transv[1],-self.transv[2])
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glTranslatef(*self.transv)
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glMultMatrixd(mat)
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glGetDoublev(GL_MODELVIEW_MATRIX,self.mvmat)
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self.rot=1
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elif event.ButtonUp(wx.MOUSE_BTN_LEFT):
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if self.initp is not None:
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self.initp=None
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elif event.ButtonUp(wx.MOUSE_BTN_RIGHT):
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if self.initp is not None:
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self.initp=None
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elif event.Dragging() and event.RightIsDown():
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if self.initp is None:
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self.initp=event.GetPositionTuple()
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else:
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p1=self.initp
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p2=event.GetPositionTuple()
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sz=self.GetClientSize()
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p1=list(p1)
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p2=list(p2)
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p1[1]*=-1
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p2[1]*=-1
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self.transv=map(lambda x,y,z,c:c-self.dist*(x-y)/z, list(p1)+[0], list(p2)+[0], list(sz)+[1], self.transv)
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glLoadIdentity()
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glTranslatef(*self.transv)
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if(self.rot):
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glMultMatrixd(build_rotmatrix(self.basequat))
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glGetDoublev(GL_MODELVIEW_MATRIX,self.mvmat)
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self.rot=1
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self.initp=None
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def wheel(self,event):
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z=event.GetWheelRotation()
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delta=10
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if event.ShiftDown():
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if self.selected<0:
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return
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if z > 0:
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self.batches[self.selected][2]+=delta/2
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else:
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self.batches[self.selected][2]-=delta/2
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return
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if z > 0:
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self.transv[2]+=delta
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else:
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self.transv[2]-=delta
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glLoadIdentity()
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glTranslatef(*self.transv)
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if(self.rot):
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glMultMatrixd(build_rotmatrix(self.basequat))
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glGetDoublev(GL_MODELVIEW_MATRIX,self.mvmat)
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self.rot=1
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def update(self):
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while(1):
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dt=0.05
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time.sleep(0.05)
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try:
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wx.CallAfter(self.Refresh)
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except:
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return
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#continue
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global rx, ry, rz
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rx += dt * 1
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ry += dt * 80
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rz += dt * 30
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rx %= 360
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ry %= 360
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rz %= 360
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def create_objects(self):
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'''create opengl objects when opengl is initialized'''
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import stltool
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batch = pyglet.graphics.Batch()
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s= stltool.stl("../prusa/metric-prusa/x-end-idler.stl")
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stl = stlview(s.facets, batch=batch)
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#print "added vertices"
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self.batches+=[[[50,50,0],batch,0]]
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#batch = pyglet.graphics.Batch()
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#s= stltool.stl("../prusa/metric-prusa/mbotplate1.stl")
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#stl = stlview(s.facets, batch=batch)
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#print "added vertices"
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#self.batches+=[([-50,-50,0],batch)]
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self.initialized=1
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wx.CallAfter(self.Refresh)
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def update_object_resize(self):
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||||
'''called when the window recieves only if opengl is initialized'''
|
||||
pass
|
||||
|
||||
def draw_objects(self):
|
||||
'''called in the middle of ondraw after the buffer has been cleared'''
|
||||
if self.vpmat is None:
|
||||
return
|
||||
if not self.initialized:
|
||||
self.create_objects()
|
||||
|
||||
#glLoadIdentity()
|
||||
#print list(self.pmat)
|
||||
if self.rot==1:
|
||||
glLoadIdentity()
|
||||
glMultMatrixd(self.mvmat)
|
||||
else:
|
||||
glLoadIdentity()
|
||||
glTranslatef(*self.transv)
|
||||
#glRotatef(rz, 0, 0, 1)
|
||||
#glRotatef(ry, 0, 1, 0)
|
||||
#glRotatef(rx, 1, 0, 0)
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.2, 0.2, 0.2, 1))
|
||||
glBegin(GL_LINES)
|
||||
rows=10
|
||||
cols=10
|
||||
zheight=50
|
||||
for i in xrange(-rows,rows+1):
|
||||
if i%5==0:
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.6, 0.6, 0.6, 1))
|
||||
else:
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.2, 0.2, 0.2, 1))
|
||||
glVertex3f(10*-cols, 10*i,0)
|
||||
glVertex3f(10*cols, 10*i,0)
|
||||
for i in xrange(-cols,cols+1):
|
||||
if i%5==0:
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.6, 0.6, 0.6, 1))
|
||||
else:
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.2, 0.2, 0.2, 1))
|
||||
glVertex3f(10*i, 10*-rows,0)
|
||||
glVertex3f(10*i, 10*rows,0)
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.6, 0.6, 0.6, 1))
|
||||
glVertex3f(10*-cols, 10*-rows,0)
|
||||
glVertex3f(10*-cols, 10*-rows,zheight)
|
||||
glVertex3f(10*cols, 10*rows,0)
|
||||
glVertex3f(10*cols, 10*rows,zheight)
|
||||
glVertex3f(10*cols, 10*-rows,0)
|
||||
glVertex3f(10*cols, 10*-rows,zheight)
|
||||
glVertex3f(10*-cols, 10*rows,0)
|
||||
glVertex3f(10*-cols, 10*rows,zheight)
|
||||
|
||||
glVertex3f(10*-cols, 10*rows,zheight)
|
||||
glVertex3f(10*cols, 10*rows,zheight)
|
||||
glVertex3f(10*cols, 10*rows,zheight)
|
||||
glVertex3f(10*cols, 10*-rows,zheight)
|
||||
glVertex3f(10*cols, 10*-rows,zheight)
|
||||
glVertex3f(10*-cols, 10*-rows,zheight)
|
||||
glVertex3f(10*-cols, 10*-rows,zheight)
|
||||
glVertex3f(10*-cols, 10*rows,zheight)
|
||||
|
||||
glEnd()
|
||||
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, vec(0.5, 0.6, 0.3, 1))
|
||||
#glTranslatef(0,40,0)
|
||||
for i in self.batches:
|
||||
glPushMatrix()
|
||||
glTranslatef(*i[0])
|
||||
glRotatef(i[2],0.0,0.0,1.0)
|
||||
#glScalef(1,1,0)
|
||||
i[1].draw()
|
||||
glPopMatrix()
|
||||
#print "drawn batch"
|
||||
class TestFrame(wx.Frame):
|
||||
'''A simple class for using OpenGL with wxPython.'''
|
||||
|
||||
def __init__(self, parent, ID, title, pos=wx.DefaultPosition,
|
||||
size=wx.DefaultSize, style=wx.DEFAULT_FRAME_STYLE):
|
||||
super(TestFrame, self).__init__(parent, ID, title, pos, size, style)
|
||||
|
||||
self.mainsizer = wx.BoxSizer(wx.HORIZONTAL)
|
||||
self.GLPanel1 = TestGlPanel(self)
|
||||
self.mainsizer.Add(self.GLPanel1, 1, wx.EXPAND)
|
||||
#self.GLPanel2 = TestGlPanel(self, wx.ID_ANY, (20, 20))
|
||||
#self.mainsizer.Add(self.GLPanel2, 1, wx.EXPAND)
|
||||
self.SetSizer(self.mainsizer)
|
||||
#self.mainsizer.Fit(self)
|
||||
self.Layout()
|
||||
|
||||
|
||||
|
||||
|
||||
rx = ry = rz = 0
|
||||
|
||||
app = wx.App(redirect=False)
|
||||
frame = TestFrame(None, wx.ID_ANY, 'GL Window', size=(400,400))
|
||||
#frame = wx.Frame(None, -1, "GL Window", size=(400,400))
|
||||
#panel = TestGlPanel(frame)
|
||||
frame.Show(True)
|
||||
app.MainLoop()
|
||||
app.Destroy()
|
||||
Loading…
Reference in New Issue