10 from Cura.util import profile
12 def getEngineFilename():
13 if platform.system() == 'Windows':
14 if os.path.exists('C:/Software/Cura_SteamEngine/_bin/Release/Cura_SteamEngine.exe'):
15 return 'C:/Software/Cura_SteamEngine/_bin/Release/Cura_SteamEngine.exe'
16 return os.path.abspath(os.path.join(os.path.dirname(__file__), '../..', 'SteamEngine.exe'))
17 return os.path.abspath(os.path.join(os.path.dirname(__file__), '../..', 'SteamEngine'))
19 def getTempFilename():
20 warnings.simplefilter('ignore')
21 ret = os.tempnam(None, "Cura_Tmp")
22 warnings.simplefilter('default')
26 def __init__(self, progressCallback):
29 self._callback = progressCallback
30 self._binaryStorageFilename = getTempFilename()
31 self._exportFilename = getTempFilename()
32 self._progressSteps = ['inset', 'skin', 'export']
34 def abortSlicer(self):
35 if self._process is not None:
36 self._process.terminate()
39 def getGCodeFilename(self):
40 return self._exportFilename
42 def runSlicer(self, scene):
44 self._callback(0.0, False)
46 commandList = [getEngineFilename(), '-vv']
47 for k, v in self._engineSettings().iteritems():
48 commandList += ['-s', '%s=%s' % (k, str(v))]
49 commandList += ['-o', self._exportFilename]
50 commandList += ['-b', self._binaryStorageFilename]
52 with open(self._binaryStorageFilename, "wb") as f:
53 for n in scene.printOrder():
54 obj = scene.objects()[n]
55 for mesh in obj._meshList:
56 n = numpy.array(mesh.vertexCount, numpy.int32)
58 f.write(mesh.vertexes.tostring())
59 pos = obj.getPosition() * 1000
60 pos += numpy.array([profile.getPreferenceFloat('machine_width') * 1000 / 2, profile.getPreferenceFloat('machine_depth') * 1000 / 2])
61 commandList += ['-m', ','.join(map(str, obj._matrix.getA().flatten()))]
62 commandList += ['-s', 'posx=%d' % int(pos[0]), '-s', 'posy=%d' % int(pos[1]), '#']
64 if self._objCount > 0:
65 print ' '.join(commandList)
67 self._process = self._runSliceProcess(commandList)
68 self._thread = threading.Thread(target=self._watchProcess)
69 self._thread.daemon = True
74 def _watchProcess(self):
75 self._callback(0.0, False)
76 line = self._process.stdout.readline()
79 if line.startswith('Progress:'):
80 line = line.split(':')
81 progressValue = float(line[2]) / float(line[3])
82 progressValue /= len(self._progressSteps)
83 progressValue += 1.0 / len(self._progressSteps) * self._progressSteps.index(line[1])
84 self._callback(progressValue, False)
86 print '#', line.strip()
87 line = self._process.stdout.readline()
88 for line in self._process.stderr:
90 returnCode = self._process.wait()
93 self._callback(1.0, True)
95 self._callback(0.0, False)
98 def _engineSettings(self):
100 'layerThickness': int(profile.getProfileSettingFloat('layer_height') * 1000),
101 'initialLayerThickness': int(profile.getProfileSettingFloat('bottom_thickness') * 1000),
102 'filamentDiameter': int(profile.getProfileSettingFloat('filament_diameter') * 1000),
103 'extrusionWidth': int(profile.calculateEdgeWidth() * 1000),
104 'insetCount': int(profile.calculateLineCount()),
105 'downSkinCount': int(profile.calculateSolidLayerCount()),
106 'upSkinCount': int(profile.calculateSolidLayerCount()),
107 'sparseInfillLineDistance': int(100 * profile.calculateEdgeWidth() * 1000 / profile.getProfileSettingFloat('fill_density')),
108 'skirtDistance': int(profile.getProfileSettingFloat('skirt_gap') * 1000),
109 'skirtLineCount': int(profile.getProfileSettingFloat('skirt_line_count')),
110 'initialSpeedupLayers': int(4),
111 'initialLayerSpeed': int(profile.getProfileSettingFloat('bottom_layer_speed')),
112 'printSpeed': int(profile.getProfileSettingFloat('print_speed')),
113 'moveSpeed': int(profile.getProfileSettingFloat('travel_speed')),
114 'fanOnLayerNr': int(profile.getProfileSettingFloat('fan_layer')),
115 'supportAngle': int(-1) if profile.getProfileSetting('support') == 'None' else int(60),
116 'supportEverywhere': int(1) if profile.getProfileSetting('support') == 'Everywhere' else int(0),
117 'retractionAmount': int(profile.getProfileSettingFloat('retraction_amount') * 1000),
118 'retractionSpeed': int(profile.getProfileSettingFloat('retraction_speed')),
119 'objectSink': int(profile.getProfileSettingFloat('object_sink') * 1000),
122 def _runSliceProcess(self, cmdList):
124 if subprocess.mswindows:
125 su = subprocess.STARTUPINFO()
126 su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
127 su.wShowWindow = subprocess.SW_HIDE
128 kwargs['startupinfo'] = su
129 kwargs['creationflags'] = 0x00004000 #BELOW_NORMAL_PRIORITY_CLASS
130 return subprocess.Popen(cmdList, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs)