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4a3db419ec
See issue Ultimaker/CuraEngine#240 The intent of this change it to allow token replacement in start/end gcode similar to the old Cura. Tokens are of the form {material_bed_temperature} where the name is any setting name that is passed to the engine. Control the backend's generation of temperature commands via new settings material_bed_temp_prepend and material_print_temp_prepend based on whether there are temperature tokens in the printer profile's start gcode. This change will generate the same temperature gcode as FffGcodeWriter at the head, if none of the temperature tokens are present in the machine profile. Otherwise, they're suppressed via the prepend settings. Also, set fdmprinter.json so that all that inherit from it default to having the gcode temperature prepend also wait for temperature. Profiles can override these settings: material_bed_temp_wait and material_print_temp_wait This PR intends to change both Cura and CuraEngine. However, it is safe to sequence with the Cura change first which will do token replacement (if present), but will fail to supress the temperature prepends.
276 lines
10 KiB
Python
276 lines
10 KiB
Python
# Copyright (c) 2015 Ultimaker B.V.
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# Cura is released under the terms of the AGPLv3 or higher.
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from UM.Backend.Backend import Backend
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from UM.Application import Application
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from UM.Scene.SceneNode import SceneNode
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from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
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from UM.Preferences import Preferences
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from UM.Math.Vector import Vector
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from UM.Signal import Signal
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from UM.Logger import Logger
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from UM.Resources import Resources
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from UM.Settings.SettingOverrideDecorator import SettingOverrideDecorator
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from UM.Message import Message
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from cura.OneAtATimeIterator import OneAtATimeIterator
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from . import Cura_pb2
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from . import ProcessSlicedObjectListJob
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from . import ProcessGCodeJob
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from . import StartSliceJob
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import os
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import sys
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import numpy
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from PyQt5.QtCore import QTimer
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from UM.i18n import i18nCatalog
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catalog = i18nCatalog("cura")
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class CuraEngineBackend(Backend):
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def __init__(self):
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super().__init__()
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# Find out where the engine is located, and how it is called. This depends on how Cura is packaged and which OS we are running on.
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default_engine_location = os.path.join(Application.getInstallPrefix(), "bin", "CuraEngine")
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if hasattr(sys, "frozen"):
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default_engine_location = os.path.join(os.path.dirname(os.path.abspath(sys.executable)), "CuraEngine")
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if sys.platform == "win32":
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default_engine_location += ".exe"
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default_engine_location = os.path.abspath(default_engine_location)
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Preferences.getInstance().addPreference("backend/location", default_engine_location)
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self._scene = Application.getInstance().getController().getScene()
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self._scene.sceneChanged.connect(self._onSceneChanged)
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# Workaround to disable layer view processing if layer view is not active.
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self._layer_view_active = False
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Application.getInstance().getController().activeViewChanged.connect(self._onActiveViewChanged)
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self._onActiveViewChanged()
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self._stored_layer_data = None
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Application.getInstance().getMachineManager().activeMachineInstanceChanged.connect(self._onChanged)
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self._profile = None
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Application.getInstance().getMachineManager().activeProfileChanged.connect(self._onActiveProfileChanged)
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self._onActiveProfileChanged()
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self._change_timer = QTimer()
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self._change_timer.setInterval(500)
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self._change_timer.setSingleShot(True)
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self._change_timer.timeout.connect(self.slice)
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self._message_handlers[Cura_pb2.SlicedObjectList] = self._onSlicedObjectListMessage
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self._message_handlers[Cura_pb2.Progress] = self._onProgressMessage
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self._message_handlers[Cura_pb2.GCodeLayer] = self._onGCodeLayerMessage
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self._message_handlers[Cura_pb2.GCodePrefix] = self._onGCodePrefixMessage
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self._message_handlers[Cura_pb2.ObjectPrintTime] = self._onObjectPrintTimeMessage
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self._slicing = False
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self._restart = False
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self._enabled = True
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self._always_restart = True
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self._message = None
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self.backendConnected.connect(self._onBackendConnected)
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Application.getInstance().getController().toolOperationStarted.connect(self._onToolOperationStarted)
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Application.getInstance().getController().toolOperationStopped.connect(self._onToolOperationStopped)
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Application.getInstance().getMachineManager().activeMachineInstanceChanged.connect(self._onInstanceChanged)
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## Get the command that is used to call the engine.
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# This is usefull for debugging and used to actually start the engine
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# \return list of commands and args / parameters.
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def getEngineCommand(self):
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active_machine = Application.getInstance().getMachineManager().getActiveMachineInstance()
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if not active_machine:
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return None
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return [Preferences.getInstance().getValue("backend/location"), "connect", "127.0.0.1:{0}".format(self._port), "-j", active_machine.getMachineDefinition().getPath(), "-vv"]
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## Emitted when we get a message containing print duration and material amount. This also implies the slicing has finished.
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# \param time The amount of time the print will take.
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# \param material_amount The amount of material the print will use.
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printDurationMessage = Signal()
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## Emitted when the slicing process starts.
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slicingStarted = Signal()
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## Emitted whne the slicing process is aborted forcefully.
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slicingCancelled = Signal()
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## Perform a slice of the scene.
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def slice(self):
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if not self._enabled:
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return
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if self._slicing:
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self._slicing = False
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self._restart = True
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if self._process is not None:
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Logger.log("d", "Killing engine process")
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try:
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self._process.terminate()
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except: # terminating a process that is already terminating causes an exception, silently ignore this.
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pass
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if self._message:
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self._message.hide()
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self._message = None
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self.slicingCancelled.emit()
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return
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if self._profile.hasErrorValue():
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Logger.log('w', "Profile has error values. Aborting slicing")
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if self._message:
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self._message.hide()
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self._message = None
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self._message = Message(catalog.i18nc("@info:status", "Unable to slice. Please check your setting values for errors."))
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self._message.show()
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return #No slicing if we have error values since those are by definition illegal values.
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self.processingProgress.emit(0.0)
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if not self._message:
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self._message = Message(catalog.i18nc("@info:status", "Slicing..."), 0, False, -1)
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self._message.show()
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else:
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self._message.setProgress(-1)
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self._scene.gcode_list = []
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self._slicing = True
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job = StartSliceJob.StartSliceJob(self._profile, self._socket)
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job.start()
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job.finished.connect(self._onStartSliceCompleted)
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def _onStartSliceCompleted(self, job):
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if job.getError() or job.getResult() != True:
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if self._message:
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self._message.hide()
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self._message = None
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return
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def _onSceneChanged(self, source):
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if type(source) is not SceneNode:
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return
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if source is self._scene.getRoot():
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return
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if source.getMeshData() is None:
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return
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if source.getMeshData().getVertices() is None:
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return
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self._onChanged()
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def _onActiveProfileChanged(self):
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if self._profile:
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self._profile.settingValueChanged.disconnect(self._onSettingChanged)
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self._profile = Application.getInstance().getMachineManager().getActiveProfile()
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if self._profile:
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self._profile.settingValueChanged.connect(self._onSettingChanged)
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self._onChanged()
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def _onSettingChanged(self, setting):
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self._onChanged()
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def _onSlicedObjectListMessage(self, message):
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if self._layer_view_active:
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job = ProcessSlicedObjectListJob.ProcessSlicedObjectListJob(message)
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job.start()
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else :
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self._stored_layer_data = message
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def _onProgressMessage(self, message):
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if self._message:
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self._message.setProgress(round(message.amount * 100))
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self.processingProgress.emit(message.amount)
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def _onGCodeLayerMessage(self, message):
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self._scene.gcode_list.append(message.data.decode("utf-8", "replace"))
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def _onGCodePrefixMessage(self, message):
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self._scene.gcode_list.insert(0, message.data.decode("utf-8", "replace"))
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def _onObjectPrintTimeMessage(self, message):
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self.printDurationMessage.emit(message.time, message.material_amount)
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self.processingProgress.emit(1.0)
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self._slicing = False
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if self._message:
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self._message.setProgress(100)
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self._message.hide()
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self._message = None
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if self._always_restart:
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try:
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self._process.terminate()
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self._createSocket()
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except: # terminating a process that is already terminating causes an exception, silently ignore this.
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pass
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def _createSocket(self):
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super()._createSocket()
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self._socket.registerMessageType(1, Cura_pb2.Slice)
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self._socket.registerMessageType(2, Cura_pb2.SlicedObjectList)
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self._socket.registerMessageType(3, Cura_pb2.Progress)
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self._socket.registerMessageType(4, Cura_pb2.GCodeLayer)
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self._socket.registerMessageType(5, Cura_pb2.ObjectPrintTime)
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self._socket.registerMessageType(6, Cura_pb2.SettingList)
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self._socket.registerMessageType(7, Cura_pb2.GCodePrefix)
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## Manually triggers a reslice
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def forceSlice(self):
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self._change_timer.start()
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def _onChanged(self):
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if not self._profile:
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return
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self._change_timer.start()
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def _onBackendConnected(self):
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if self._restart:
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self._onChanged()
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self._restart = False
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def _onToolOperationStarted(self, tool):
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self._enabled = False # Do not reslice when a tool is doing it's 'thing'
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def _onToolOperationStopped(self, tool):
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self._enabled = True # Tool stop, start listening for changes again.
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self._onChanged()
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def _onActiveViewChanged(self):
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if Application.getInstance().getController().getActiveView():
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view = Application.getInstance().getController().getActiveView()
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if view.getPluginId() == "LayerView":
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self._layer_view_active = True
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if self._stored_layer_data:
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job = ProcessSlicedObjectListJob.ProcessSlicedObjectListJob(self._stored_layer_data)
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job.start()
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self._stored_layer_data = None
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else:
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self._layer_view_active = False
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def _onInstanceChanged(self):
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self._slicing = False
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self._restart = True
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if self._process is not None:
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Logger.log("d", "Killing engine process")
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try:
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self._process.terminate()
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except: # terminating a process that is already terminating causes an exception, silently ignore this.
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pass
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self.slicingCancelled.emit()
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