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from __future__ import absolute_import
__copyright__ = "Copyright (C) 2013 David Braam - Released under terms of the AGPLv3 License"
import sys
import math
import os
import time
import numpy
from Cura.util import profile
#class gcodePath(object):
# def __init__(self, newType, pathType, layerThickness, startPoint):
# self.type = newType
# self.pathType = pathType
# self.layerThickness = layerThickness
# self.points = [startPoint]
# self.extrusion = [0.0]
def gcodePath(newType, pathType, layerThickness, startPoint):
return {'type': newType,
'pathType': pathType,
'layerThickness': layerThickness,
'points': [startPoint],
'extrusion': [0.0]}
class gcode(object):
def __init__(self):
self.regMatch = {}
self.layerList = None
self.extrusionAmount = 0
self.totalMoveTimeMinute = 0
self.filename = None
self.progressCallback = None
def load(self, filename):
if os.path.isfile(filename):
self.filename = filename
self._fileSize = os.stat(filename).st_size
gcodeFile = open(filename, 'r')
self._load(gcodeFile)
gcodeFile.close()
def loadList(self, l):
self.filename = None
self._load(l)
def calculateWeight(self):
#Calculates the weight of the filament in kg
radius = float(profile.getProfileSetting('filament_diameter')) / 2
volumeM3 = (self.extrusionAmount * (math.pi * radius * radius)) / (1000*1000*1000)
return volumeM3 * profile.getPreferenceFloat('filament_physical_density')
def calculateCost(self):
cost_kg = profile.getPreferenceFloat('filament_cost_kg')
cost_meter = profile.getPreferenceFloat('filament_cost_meter')
if cost_kg > 0.0 and cost_meter > 0.0:
return "%.2f / %.2f" % (self.calculateWeight() * cost_kg, self.extrusionAmount / 1000 * cost_meter)
elif cost_kg > 0.0:
return "%.2f" % (self.calculateWeight() * cost_kg)
elif cost_meter > 0.0:
return "%.2f" % (self.extrusionAmount / 1000 * cost_meter)
return None
def _load(self, gcodeFile):
self.layerList = []
pos = [0.0, 0.0, 0.0]
posOffset = [0.0, 0.0, 0.0]
currentE = 0.0
totalExtrusion = 0.0
maxExtrusion = 0.0
currentExtruder = 0
extrudeAmountMultiply = 1.0
totalMoveTimeMinute = 0.0
absoluteE = True
scale = 1.0
posAbs = True
feedRate = 3600.0
layerThickness = 0.1
pathType = 'CUSTOM';
currentLayer = []
currentPath = gcodePath('move', pathType, layerThickness, pos[:])
currentPath['extruder'] = currentExtruder
currentLayer.append(currentPath)
for line in gcodeFile:
if type(line) is tuple:
line = line[0]
#Parse Cura_SF comments
if line.startswith(';TYPE:'):
pathType = line[6:].strip()
if ';' in line:
#Slic3r GCode comment parser
comment = line[line.find(';')+1:].strip()
if comment == 'fill':
pathType = 'FILL'
elif comment == 'perimeter':
pathType = 'WALL-INNER'
elif comment == 'skirt':
pathType = 'SKIRT'
if comment.startswith('LAYER:'):
currentPath = gcodePath(moveType, pathType, layerThickness, currentPath['points'][-1])
currentPath['extruder'] = currentExtruder
for path in currentLayer:
path['points'] = numpy.array(path['points'], numpy.float32)
path['extrusion'] = numpy.array(path['extrusion'], numpy.float32)
self.layerList.append(currentLayer)
if self.progressCallback is not None:
if self.progressCallback(float(gcodeFile.tell()) / float(self._fileSize)):
#Abort the loading, we can safely return as the results here will be discarded
gcodeFile.close()
return
currentLayer = [currentPath]
line = line[0:line.find(';')]
T = getCodeInt(line, 'T')
if T is not None:
if currentExtruder > 0:
posOffset[0] -= profile.getPreferenceFloat('extruder_offset_x%d' % (currentExtruder))
posOffset[1] -= profile.getPreferenceFloat('extruder_offset_y%d' % (currentExtruder))
currentExtruder = T
if currentExtruder > 0:
posOffset[0] += profile.getPreferenceFloat('extruder_offset_x%d' % (currentExtruder))
posOffset[1] += profile.getPreferenceFloat('extruder_offset_y%d' % (currentExtruder))
G = getCodeInt(line, 'G')
if G is not None:
if G == 0 or G == 1: #Move
x = getCodeFloat(line, 'X')
y = getCodeFloat(line, 'Y')
z = getCodeFloat(line, 'Z')
e = getCodeFloat(line, 'E')
#f = getCodeFloat(line, 'F')
oldPos = pos[:]
if posAbs:
if x is not None:
pos[0] = x * scale + posOffset[0]
if y is not None:
pos[1] = y * scale + posOffset[1]
if z is not None:
pos[2] = z * scale + posOffset[2]
else:
if x is not None:
pos[0] += x * scale
if y is not None:
pos[1] += y * scale
if z is not None:
pos[2] += z * scale
#if f is not None:
# feedRate = f
#if x is not None or y is not None or z is not None:
# diffX = oldPos[0] - pos[0]
# diffY = oldPos[1] - pos[1]
# totalMoveTimeMinute += math.sqrt(diffX * diffX + diffY * diffY) / feedRate
moveType = 'move'
if e is not None:
if absoluteE:
e -= currentE
if e > 0.0:
moveType = 'extrude'
if e < 0.0:
moveType = 'retract'
totalExtrusion += e
currentE += e
if totalExtrusion > maxExtrusion:
maxExtrusion = totalExtrusion
else:
e = 0.0
if moveType == 'move' and oldPos[2] != pos[2]:
if oldPos[2] > pos[2] and abs(oldPos[2] - pos[2]) > 5.0 and pos[2] < 1.0:
oldPos[2] = 0.0
layerThickness = abs(oldPos[2] - pos[2])
if currentPath['type'] != moveType or currentPath['pathType'] != pathType:
currentPath = gcodePath(moveType, pathType, layerThickness, currentPath['points'][-1])
currentPath['extruder'] = currentExtruder
currentLayer.append(currentPath)
currentPath['points'].append(pos[:])
currentPath['extrusion'].append(e * extrudeAmountMultiply)
elif G == 4: #Delay
S = getCodeFloat(line, 'S')
if S is not None:
totalMoveTimeMinute += S / 60.0
P = getCodeFloat(line, 'P')
if P is not None:
totalMoveTimeMinute += P / 60.0 / 1000.0
elif G == 20: #Units are inches
scale = 25.4
elif G == 21: #Units are mm
scale = 1.0
elif G == 28: #Home
x = getCodeFloat(line, 'X')
y = getCodeFloat(line, 'Y')
z = getCodeFloat(line, 'Z')
if profile.getPreference('machine_center_is_zero') == 'True':
center = [profile.getProfileSettingFloat('machine_width') / 2, profile.getProfileSettingFloat('machine_depth') / 2,0.0]
else:
center = [0.0,0.0,0.0]
if x is None and y is None and z is None:
pos = center
else:
if x is not None:
pos[0] = center[0]
if y is not None:
pos[0] = center[1]
if z is not None:
pos[0] = center[2]
elif G == 90: #Absolute position
posAbs = True
elif G == 91: #Relative position
posAbs = False
elif G == 92:
x = getCodeFloat(line, 'X')
y = getCodeFloat(line, 'Y')
z = getCodeFloat(line, 'Z')
e = getCodeFloat(line, 'E')
if e is not None:
currentE = e
if x is not None:
posOffset[0] = pos[0] - x
if y is not None:
posOffset[1] = pos[1] - y
if z is not None:
posOffset[2] = pos[2] - z
else:
print "Unknown G code:" + str(G)
else:
M = getCodeInt(line, 'M')
if M is not None:
if M == 0: #Message with possible wait (ignored)
pass
elif M == 1: #Message with possible wait (ignored)
pass
elif M == 80: #Enable power supply
pass
elif M == 81: #Suicide/disable power supply
pass
elif M == 82: #Absolute E
absoluteE = True
elif M == 83: #Relative E
absoluteE = False
elif M == 84: #Disable step drivers
pass
elif M == 92: #Set steps per unit
pass
elif M == 101: #Enable extruder
pass
elif M == 103: #Disable extruder
pass
elif M == 104: #Set temperature, no wait
pass
elif M == 105: #Get temperature
pass
elif M == 106: #Enable fan
pass
elif M == 107: #Disable fan
pass
elif M == 108: #Extruder RPM (these should not be in the final GCode, but they are)
pass
elif M == 109: #Set temperature, wait
pass
elif M == 110: #Reset N counter
pass
elif M == 113: #Extruder PWM (these should not be in the final GCode, but they are)
pass
elif M == 117: #LCD message
pass
elif M == 140: #Set bed temperature
pass
elif M == 190: #Set bed temperature & wait
pass
elif M == 221: #Extrude amount multiplier
s = getCodeFloat(line, 'S')
if s is not None:
extrudeAmountMultiply = s / 100.0
else:
print "Unknown M code:" + str(M)
for path in currentLayer:
path['points'] = numpy.array(path['points'], numpy.float32)
path['extrusion'] = numpy.array(path['extrusion'], numpy.float32)
self.layerList.append(currentLayer)
if self.progressCallback is not None and self._fileSize > 0:
self.progressCallback(float(gcodeFile.tell()) / float(self._fileSize))
self.extrusionAmount = maxExtrusion
self.totalMoveTimeMinute = totalMoveTimeMinute
#print "Extruded a total of: %d mm of filament" % (self.extrusionAmount)
#print "Estimated print duration: %.2f minutes" % (self.totalMoveTimeMinute)
def getCodeInt(line, code):
n = line.find(code) + 1
if n < 1:
return None
m = line.find(' ', n)
try:
if m < 0:
return int(line[n:])
return int(line[n:m])
except:
return None
def getCodeFloat(line, code):
n = line.find(code) + 1
if n < 1:
return None
m = line.find(' ', n)
try:
if m < 0:
return float(line[n:])
return float(line[n:m])
except:
return None
if __name__ == '__main__':
t = time.time()
for filename in sys.argv[1:]:
g = gcode()
g.load(filename)
print g.totalMoveTimeMinute
print time.time() - t
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