213 lines
6.7 KiB
Python
213 lines
6.7 KiB
Python
# This file is part of the Printrun suite.
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#
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# Copyright 2013 Francesco Santini francesco.santini@gmail.com
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#
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# Printrun is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Printrun is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Printrun. If not, see <http://www.gnu.org/licenses/>.
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#
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# This code is imported from RepetierHost - Original copyright and license:
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# Copyright 2011 repetier repetierdev@gmail.com
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import re
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class GCodeAnalyzer():
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def __init__(self):
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self.x = 0
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self.y = 0
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self.z = 0
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self.e = 0
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self.emax = 0
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self.f = 1000
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self.lastX = 0
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self.lastY = 0
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self.lastZ = 0
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self.lastE = 0
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self.xOffset = 0
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self.yOffset = 0
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self.zOffset = 0
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self.eOffset = 0
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self.lastZPrint = 0
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self.layerZ = 0
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self.relative = False
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self.eRelative = False
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self.homeX = 0
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self.homeY = 0
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self.homeZ = 0
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self.maxX = 150
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self.maxY = 150
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self.maxZ = 150
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self.minX = 0
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self.minY = 0
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self.minZ = 0
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self.hasHomeX = False
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self.hasHomeY = False
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self.hasHomeZ = False
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# find a code in a gstring line
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def findCode(self, gcode, codeStr):
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pattern = re.compile(codeStr + "\\s*(-?[\d.]*)",re.I)
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m=re.search(pattern, gcode)
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if m == None:
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return None
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else:
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return m.group(1)
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def Analyze(self, gcode):
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gcode = gcode[:gcode.find(";")].lstrip() # remove comments
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if gcode.startswith("@"): return # code is a host command
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code_g = self.findCode(gcode, "G")
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code_m = self.findCode(gcode, "M")
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# we have a g_code
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if code_g != None:
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code_g = int(code_g)
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#get movement codes
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if code_g == 0 or code_g == 1 or code_g == 2 or code_g == 3:
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self.lastX = self.x
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self.lastY = self.y
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self.lastZ = self.z
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self.lastE = self.e
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eChanged = False;
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code_f = self.findCode(gcode, "F")
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if code_f != None:
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self.f=float(code_f)
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code_x = self.findCode(gcode, "X")
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code_y = self.findCode(gcode, "Y")
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code_z = self.findCode(gcode, "Z")
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code_e = self.findCode(gcode, "E")
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if self.relative:
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if code_x != None: self.x += float(code_x)
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if code_y != None: self.y += float(code_y)
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if code_z != None: self.z += float(code_z)
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if code_e != None:
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e = float(code_e)
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if e != 0:
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eChanged = True
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self.e += e
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else:
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#absolute coordinates
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if code_x != None: self.x = self.xOffset + float(code_x)
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if code_y != None: self.y = self.yOffset + float(code_y)
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if code_z != None: self.z = self.zOffset + float(code_z)
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if code_e != None:
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e = float(code_e)
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if self.eRelative:
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if e != 0:
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eChanged = True
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self.e += e
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else:
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# e is absolute. Is it changed?
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if self.e != self.eOffset + e:
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eChanged = True
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self.e = self.eOffset + e
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#limit checking
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if self.x < self.minX: self.x = self.minX
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if self.y < self.minY: self.y = self.minY
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if self.z < self.minZ: self.z = self.minZ
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if self.x > self.maxX: self.x = self.maxX
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if self.y > self.maxY: self.y = self.maxY
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if self.z > self.maxZ: self.z = self.maxZ
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#Repetier has a bunch of limit-checking code here and time calculations: we are leaving them for now
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elif code_g == 28 or code_g == 161:
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self.lastX = self.x
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self.lastY = self.y
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self.lastZ = self.z
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self.lastE = self.e
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code_x = self.findCode(gcode, "X")
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code_y = self.findCode(gcode, "Y")
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code_z = self.findCode(gcode, "Z")
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code_e = self.findCode(gcode, "E")
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homeAll = False
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if code_x == None and code_y == None and code_z == None: homeAll = True
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if code_x != None or homeAll:
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self.hasHomeX = True
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self.xOffset = 0
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self.x = self.homeX
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if code_y != None or homeAll:
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self.hasHomeY = True
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self.yOffset = 0
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self.y = self.homeY
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if code_z != None or homeAll:
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self.hasHomeZ = True
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self.zOffset = 0
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self.z = self.homeZ
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if code_e != None:
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self.eOffset = 0
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self.e = 0
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elif code_g == 162:
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self.lastX = self.x
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self.lastY = self.y
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self.lastZ = self.z
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self.lastE = self.e
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code_x = self.findCode(gcode, "X")
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code_y = self.findCode(gcode, "Y")
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code_z = self.findCode(gcode, "Z")
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homeAll = False
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if code_x == None and code_y == None and code_z == None: homeAll = True
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if code_x != None or homeAll:
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self.hasHomeX = True
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self.xOffset = 0
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self.x = self.maxX
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if code_y != None or homeAll:
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self.hasHomeY = True
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self.yOffset = 0
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self.y = self.maxY
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if code_z != None or homeAll:
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self.hasHomeZ = True
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self.zOffset = 0
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self.z = self.maxZ
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elif code_g == 90: self.relative = False
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elif code_g == 91: self.relative = True
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elif code_g == 92:
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code_x = self.findCode(gcode, "X")
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code_y = self.findCode(gcode, "Y")
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code_z = self.findCode(gcode, "Z")
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code_e = self.findCode(gcode, "E")
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if code_x != None:
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self.xOffset = self.x - float(code_x)
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self.x = self.xOffset
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if code_y != None:
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self.yOffset = self.y - float(code_y)
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self.y = self.yOffset
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if code_z != None:
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self.zOffset = self.z - float(code_z)
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self.z = self.zOffset
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if code_e != None:
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self.xOffset = self.e - float(code_e)
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self.e = self.eOffset
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#End code_g != None
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if code_m != None:
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code_m = int(code_m)
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if code_m == 82: self.eRelative = False
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elif code_m == 83: self.eRelative = True
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def print_status(self):
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attrs = vars(self)
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print '\n'.join("%s: %s" % item for item in attrs.items())
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