232 lines
6.2 KiB
Python
232 lines
6.2 KiB
Python
from __future__ import absolute_import
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import __init__
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import sys
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import math
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import re
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import os
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from util import util3d
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from util import profile
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class gcodePath():
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def __init__(self, newType, pathType, startPoint):
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self.type = newType
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self.pathType = pathType
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self.list = [startPoint]
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class gcode():
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def __init__(self):
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self.regMatch = {}
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self.layerList = []
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self.extrusionAmount = 0
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self.totalMoveTimeMinute = 0
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self.progressCallback = None
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def load(self, filename):
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self._fileSize = os.stat(filename).st_size
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gcodeFile = open(filename, 'r')
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self._load(gcodeFile)
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gcodeFile.close()
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def loadList(self, l):
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self._load(l)
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def calculateWeight(self):
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#Calculates the weight of the filament in kg
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radius = float(profile.getProfileSetting('filament_diameter')) / 2
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volumeM3 = (self.extrusionAmount * (math.pi * radius * radius)) / (1000*1000*1000)
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return volumeM3 * float(profile.getPreference('filament_density'))
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def _load(self, gcodeFile):
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filePos = 0
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pos = util3d.Vector3()
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posOffset = util3d.Vector3()
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currentE = 0.0
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totalExtrusion = 0.0
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maxExtrusion = 0.0
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totalMoveTimeMinute = 0.0
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scale = 1.0
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posAbs = True
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feedRate = 3600
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pathType = 'CUSTOM';
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startCodeDone = False
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currentLayer = []
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currentPath = gcodePath('move', pathType, pos.copy())
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currentPath.list[0].e = totalExtrusion
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currentLayer.append(currentPath)
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for line in gcodeFile:
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if self.progressCallback != None:
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if filePos != gcodeFile.tell():
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filePos = gcodeFile.tell()
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self.progressCallback(float(filePos) / float(self._fileSize))
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#Parse Cura_SF comments
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if line.startswith(';TYPE:'):
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pathType = line[6:].strip()
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if pathType != "CUSTOM":
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startCodeDone = True
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if ';' in line:
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#Slic3r GCode comment parser
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comment = line[line.find(';')+1:].strip()
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if comment == 'fill':
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pathType = 'FILL'
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elif comment == 'perimeter':
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pathType = 'WALL-INNER'
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elif comment == 'skirt':
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pathType = 'SKIRT'
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if pathType != "CUSTOM":
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startCodeDone = True
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line = line[0:line.find(';')]
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G = self.getCodeInt(line, 'G')
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if G is not None:
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if G == 0 or G == 1: #Move
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x = self.getCodeFloat(line, 'X')
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y = self.getCodeFloat(line, 'Y')
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z = self.getCodeFloat(line, 'Z')
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e = self.getCodeFloat(line, 'E')
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f = self.getCodeFloat(line, 'F')
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oldPos = pos.copy()
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if x is not None:
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if posAbs:
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pos.x = x * scale
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else:
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pos.x += x * scale
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if y is not None:
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if posAbs:
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pos.y = y * scale
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else:
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pos.y += y * scale
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if z is not None:
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if posAbs:
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pos.z = z * scale
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else:
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pos.z += z * scale
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#Check if we have a new layer.
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if oldPos.z != pos.z and startCodeDone:
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self.layerList.append(currentLayer)
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currentLayer = []
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if f is not None:
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feedRate = f
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if x is not None or y is not None or z is not None:
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totalMoveTimeMinute += (oldPos - pos).vsize() / feedRate
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moveType = 'move'
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if e is not None:
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if posAbs:
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if e > currentE:
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moveType = 'extrude'
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if e < currentE:
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moveType = 'retract'
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totalExtrusion += e - currentE
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currentE = e
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else:
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if e > 0:
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moveType = 'extrude'
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if e < 0:
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moveType = 'retract'
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totalExtrusion += e
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currentE += e
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if totalExtrusion > maxExtrusion:
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maxExtrusion = totalExtrusion
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if currentPath.type != moveType or currentPath.pathType != pathType:
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currentPath = gcodePath(moveType, pathType, currentPath.list[-1])
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currentLayer.append(currentPath)
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newPos = pos.copy()
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newPos.e = totalExtrusion
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currentPath.list.append(newPos)
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elif G == 20: #Units are inches
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scale = 25.4
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elif G == 21: #Units are mm
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scale = 1.0
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elif G == 28: #Home
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x = self.getCodeFloat(line, 'X')
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y = self.getCodeFloat(line, 'Y')
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z = self.getCodeFloat(line, 'Z')
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if x is None and y is None and z is None:
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pos = util3d.Vector3()
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else:
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if x is not None:
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pos.x = 0.0
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if y is not None:
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pos.y = 0.0
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if z is not None:
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pos.z = 0.0
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elif G == 90: #Absolute position
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posAbs = True
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elif G == 91: #Relative position
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posAbs = False
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elif G == 92:
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x = self.getCodeFloat(line, 'X')
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y = self.getCodeFloat(line, 'Y')
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z = self.getCodeFloat(line, 'Z')
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e = self.getCodeFloat(line, 'E')
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if e is not None:
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currentE = e
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if x is not None:
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posOffset.x = pos.x + x
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if y is not None:
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posOffset.y = pos.y + y
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if z is not None:
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posOffset.z = pos.z + z
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else:
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print "Unknown G code:" + str(G)
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else:
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M = self.getCodeInt(line, 'M')
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if M is not None:
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if M == 1: #Message with possible wait (ignored)
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pass
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elif M == 84: #Disable step drivers
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pass
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elif M == 92: #Set steps per unit
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pass
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elif M == 104: #Set temperature, no wait
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pass
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elif M == 105: #Get temperature
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pass
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elif M == 106: #Enable fan
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pass
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elif M == 107: #Disable fan
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pass
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elif M == 108: #Extruder RPM (these should not be in the final GCode, but they are)
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pass
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elif M == 109: #Set temperature, wait
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pass
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elif M == 113: #Extruder PWM (these should not be in the final GCode, but they are)
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pass
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else:
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print "Unknown M code:" + str(M)
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self.layerList.append(currentLayer)
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self.extrusionAmount = maxExtrusion
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self.totalMoveTimeMinute = totalMoveTimeMinute
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print "Extruded a total of: %d mm of filament" % (self.extrusionAmount)
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print "Estimated print duration: %.2f minutes" % (self.totalMoveTimeMinute)
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def getCodeInt(self, line, code):
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if code not in self.regMatch:
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self.regMatch[code] = re.compile(code + '([^\s]+)')
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m = self.regMatch[code].search(line)
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if m == None:
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return None
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try:
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return int(m.group(1))
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except:
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return None
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def getCodeFloat(self, line, code):
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if code not in self.regMatch:
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self.regMatch[code] = re.compile(code + '([^\s]+)')
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m = self.regMatch[code].search(line)
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if m == None:
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return None
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try:
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return float(m.group(1))
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except:
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return None
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if __name__ == '__main__':
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for filename in sys.argv[1:]:
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gcode().load(filename)
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