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https://git.mirrors.martin98.com/https://github.com/Ultimaker/Cura
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370 lines
16 KiB
Python
370 lines
16 KiB
Python
# Copyright (c) 2017 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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import numpy
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from string import Formatter
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from enum import IntEnum
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import time
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from UM.Job import Job
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from UM.Application import Application
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from UM.Logger import Logger
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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.Settings.Validator import ValidatorState
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from UM.Settings.SettingRelation import RelationType
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from cura.OneAtATimeIterator import OneAtATimeIterator
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from cura.Settings.ExtruderManager import ExtruderManager
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NON_PRINTING_MESH_SETTINGS = ["anti_overhang_mesh", "infill_mesh", "cutting_mesh"]
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class StartJobResult(IntEnum):
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Finished = 1
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Error = 2
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SettingError = 3
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NothingToSlice = 4
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MaterialIncompatible = 5
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BuildPlateError = 6
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ObjectSettingError = 7 #When an error occurs in per-object settings.
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## Formatter class that handles token expansion in start/end gcod
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class GcodeStartEndFormatter(Formatter):
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def get_value(self, key, args, kwargs): # [CodeStyle: get_value is an overridden function from the Formatter class]
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if isinstance(key, str):
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try:
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return kwargs[key]
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except KeyError:
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Logger.log("w", "Unable to replace '%s' placeholder in start/end gcode", key)
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return "{" + key + "}"
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else:
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Logger.log("w", "Incorrectly formatted placeholder '%s' in start/end gcode", key)
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return "{" + str(key) + "}"
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## Job class that builds up the message of scene data to send to CuraEngine.
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class StartSliceJob(Job):
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def __init__(self, slice_message):
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super().__init__()
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self._scene = Application.getInstance().getController().getScene()
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self._slice_message = slice_message
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self._is_cancelled = False
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def getSliceMessage(self):
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return self._slice_message
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## Check if a stack has any errors.
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## returns true if it has errors, false otherwise.
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def _checkStackForErrors(self, stack):
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if stack is None:
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return False
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for key in stack.getAllKeys():
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validation_state = stack.getProperty(key, "validationState")
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if validation_state in (ValidatorState.Exception, ValidatorState.MaximumError, ValidatorState.MinimumError):
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Logger.log("w", "Setting %s is not valid, but %s. Aborting slicing.", key, validation_state)
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return True
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Job.yieldThread()
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return False
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## Runs the job that initiates the slicing.
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def run(self):
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stack = Application.getInstance().getGlobalContainerStack()
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if not stack:
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self.setResult(StartJobResult.Error)
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return
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# Don't slice if there is a setting with an error value.
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if Application.getInstance().getMachineManager().stacksHaveErrors:
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self.setResult(StartJobResult.SettingError)
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return
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if Application.getInstance().getBuildVolume().hasErrors():
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self.setResult(StartJobResult.BuildPlateError)
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return
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for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
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material = extruder_stack.findContainer({"type": "material"})
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if material:
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if material.getMetaDataEntry("compatible") == False:
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self.setResult(StartJobResult.MaterialIncompatible)
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return
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# Don't slice if there is a per object setting with an error value.
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for node in DepthFirstIterator(self._scene.getRoot()):
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if type(node) is not SceneNode or not node.isSelectable():
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continue
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if self._checkStackForErrors(node.callDecoration("getStack")):
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self.setResult(StartJobResult.ObjectSettingError)
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return
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with self._scene.getSceneLock():
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# Remove old layer data.
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for node in DepthFirstIterator(self._scene.getRoot()):
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if node.callDecoration("getLayerData"):
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node.getParent().removeChild(node)
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break
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# Get the objects in their groups to print.
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object_groups = []
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if stack.getProperty("print_sequence", "value") == "one_at_a_time":
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for node in OneAtATimeIterator(self._scene.getRoot()):
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temp_list = []
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# Node can't be printed, so don't bother sending it.
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if getattr(node, "_outside_buildarea", False):
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continue
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children = node.getAllChildren()
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children.append(node)
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for child_node in children:
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if type(child_node) is SceneNode and child_node.getMeshData() and child_node.getMeshData().getVertices() is not None:
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temp_list.append(child_node)
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if temp_list:
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object_groups.append(temp_list)
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Job.yieldThread()
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if len(object_groups) == 0:
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Logger.log("w", "No objects suitable for one at a time found, or no correct order found")
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else:
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temp_list = []
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has_printing_mesh = False
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for node in DepthFirstIterator(self._scene.getRoot()):
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if node.callDecoration("isSliceable") and type(node) is SceneNode and node.getMeshData() and node.getMeshData().getVertices() is not None:
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per_object_stack = node.callDecoration("getStack")
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is_non_printing_mesh = False
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if per_object_stack:
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is_non_printing_mesh = any(per_object_stack.getProperty(key, "value") for key in NON_PRINTING_MESH_SETTINGS)
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if not getattr(node, "_outside_buildarea", False) or not is_non_printing_mesh:
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temp_list.append(node)
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if not is_non_printing_mesh:
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has_printing_mesh = True
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Job.yieldThread()
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#If the list doesn't have any model with suitable settings then clean the list
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# otherwise CuraEngine will crash
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if not has_printing_mesh:
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temp_list.clear()
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if temp_list:
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object_groups.append(temp_list)
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# There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
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# able to find a possible sequence or because there are no objects on the build plate (or they are outside
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# the build volume)
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if not object_groups:
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self.setResult(StartJobResult.NothingToSlice)
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return
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self._buildGlobalSettingsMessage(stack)
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self._buildGlobalInheritsStackMessage(stack)
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# Build messages for extruder stacks
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for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
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self._buildExtruderMessage(extruder_stack)
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for group in object_groups:
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group_message = self._slice_message.addRepeatedMessage("object_lists")
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if group[0].getParent().callDecoration("isGroup"):
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self._handlePerObjectSettings(group[0].getParent(), group_message)
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for object in group:
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mesh_data = object.getMeshData()
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rot_scale = object.getWorldTransformation().getTransposed().getData()[0:3, 0:3]
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translate = object.getWorldTransformation().getData()[:3, 3]
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# This effectively performs a limited form of MeshData.getTransformed that ignores normals.
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verts = mesh_data.getVertices()
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verts = verts.dot(rot_scale)
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verts += translate
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# Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
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verts[:, [1, 2]] = verts[:, [2, 1]]
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verts[:, 1] *= -1
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obj = group_message.addRepeatedMessage("objects")
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obj.id = id(object)
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indices = mesh_data.getIndices()
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if indices is not None:
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flat_verts = numpy.take(verts, indices.flatten(), axis=0)
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else:
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flat_verts = numpy.array(verts)
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obj.vertices = flat_verts
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self._handlePerObjectSettings(object, obj)
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Job.yieldThread()
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self.setResult(StartJobResult.Finished)
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def cancel(self):
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super().cancel()
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self._is_cancelled = True
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def isCancelled(self):
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return self._is_cancelled
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## Creates a dictionary of tokens to replace in g-code pieces.
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#
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# This indicates what should be replaced in the start and end g-codes.
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# \param stack The stack to get the settings from to replace the tokens
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# with.
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# \return A dictionary of replacement tokens to the values they should be
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# replaced with.
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def _buildReplacementTokens(self, stack) -> dict:
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result = {}
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for key in stack.getAllKeys():
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result[key] = stack.getProperty(key, "value")
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Job.yieldThread()
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result["print_bed_temperature"] = result["material_bed_temperature"] # Renamed settings.
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result["print_temperature"] = result["material_print_temperature"]
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result["time"] = time.strftime("%H:%M:%S") #Some extra settings.
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result["date"] = time.strftime("%d-%m-%Y")
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result["day"] = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][int(time.strftime("%w"))]
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return result
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## Replace setting tokens in a piece of g-code.
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# \param value A piece of g-code to replace tokens in.
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# \param settings A dictionary of tokens to replace and their respective
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# replacement strings.
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def _expandGcodeTokens(self, value: str, settings: dict):
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try:
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# any setting can be used as a token
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fmt = GcodeStartEndFormatter()
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return str(fmt.format(value, **settings))
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except:
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Logger.logException("w", "Unable to do token replacement on start/end gcode")
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return str(value)
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## Create extruder message from stack
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def _buildExtruderMessage(self, stack):
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message = self._slice_message.addRepeatedMessage("extruders")
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message.id = int(stack.getMetaDataEntry("position"))
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settings = self._buildReplacementTokens(stack)
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# Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
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settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")
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# Replace the setting tokens in start and end g-code.
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settings["machine_extruder_start_code"] = self._expandGcodeTokens(settings["machine_extruder_start_code"], settings)
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settings["machine_extruder_end_code"] = self._expandGcodeTokens(settings["machine_extruder_end_code"], settings)
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for key, value in settings.items():
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# Do not send settings that are not settable_per_extruder.
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if not stack.getProperty(key, "settable_per_extruder"):
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continue
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setting = message.getMessage("settings").addRepeatedMessage("settings")
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setting.name = key
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setting.value = str(value).encode("utf-8")
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Job.yieldThread()
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## Sends all global settings to the engine.
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#
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# The settings are taken from the global stack. This does not include any
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# per-extruder settings or per-object settings.
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def _buildGlobalSettingsMessage(self, stack):
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settings = self._buildReplacementTokens(stack)
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# Pre-compute material material_bed_temp_prepend and material_print_temp_prepend
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start_gcode = settings["machine_start_gcode"]
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bed_temperature_settings = {"material_bed_temperature", "material_bed_temperature_layer_0"}
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settings["material_bed_temp_prepend"] = all(("{" + setting + "}" not in start_gcode for setting in bed_temperature_settings))
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print_temperature_settings = {"material_print_temperature", "material_print_temperature_layer_0", "default_material_print_temperature", "material_initial_print_temperature", "material_final_print_temperature", "material_standby_temperature"}
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settings["material_print_temp_prepend"] = all(("{" + setting + "}" not in start_gcode for setting in print_temperature_settings))
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# Find the correct temperatures from the first used extruder
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extruder_stack = Application.getInstance().getExtruderManager().getUsedExtruderStacks()[0]
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extruder_0_settings = self._buildReplacementTokens(extruder_stack)
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# Replace the setting tokens in start and end g-code.
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settings["machine_start_gcode"] = self._expandGcodeTokens(settings["machine_start_gcode"], extruder_0_settings)
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settings["machine_end_gcode"] = self._expandGcodeTokens(settings["machine_end_gcode"], extruder_0_settings)
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# Add all sub-messages for each individual setting.
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for key, value in settings.items():
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setting_message = self._slice_message.getMessage("global_settings").addRepeatedMessage("settings")
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setting_message.name = key
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setting_message.value = str(value).encode("utf-8")
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Job.yieldThread()
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## Sends for some settings which extruder they should fallback to if not
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# set.
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#
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# This is only set for settings that have the limit_to_extruder
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# property.
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#
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# \param stack The global stack with all settings, from which to read the
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# limit_to_extruder property.
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def _buildGlobalInheritsStackMessage(self, stack):
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for key in stack.getAllKeys():
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extruder = int(round(float(stack.getProperty(key, "limit_to_extruder"))))
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if extruder >= 0: #Set to a specific extruder.
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setting_extruder = self._slice_message.addRepeatedMessage("limit_to_extruder")
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setting_extruder.name = key
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setting_extruder.extruder = extruder
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Job.yieldThread()
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## Check if a node has per object settings and ensure that they are set correctly in the message
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# \param node \type{SceneNode} Node to check.
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# \param message object_lists message to put the per object settings in
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def _handlePerObjectSettings(self, node, message):
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stack = node.callDecoration("getStack")
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# Check if the node has a stack attached to it and the stack has any settings in the top container.
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if not stack:
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return
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# Check all settings for relations, so we can also calculate the correct values for dependent settings.
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top_of_stack = stack.getTop() # Cache for efficiency.
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changed_setting_keys = set(top_of_stack.getAllKeys())
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# Add all relations to changed settings as well.
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for key in top_of_stack.getAllKeys():
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instance = top_of_stack.getInstance(key)
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self._addRelations(changed_setting_keys, instance.definition.relations)
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Job.yieldThread()
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# Ensure that the engine is aware what the build extruder is.
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if stack.getProperty("machine_extruder_count", "value") > 1:
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changed_setting_keys.add("extruder_nr")
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# Get values for all changed settings
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for key in changed_setting_keys:
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setting = message.addRepeatedMessage("settings")
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setting.name = key
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extruder = int(round(float(stack.getProperty(key, "limit_to_extruder"))))
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# Check if limited to a specific extruder, but not overridden by per-object settings.
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if extruder >= 0 and key not in changed_setting_keys:
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limited_stack = ExtruderManager.getInstance().getActiveExtruderStacks()[extruder]
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else:
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limited_stack = stack
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setting.value = str(limited_stack.getProperty(key, "value")).encode("utf-8")
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Job.yieldThread()
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## Recursive function to put all settings that require each other for value changes in a list
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# \param relations_set \type{set} Set of keys (strings) of settings that are influenced
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# \param relations list of relation objects that need to be checked.
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def _addRelations(self, relations_set, relations):
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for relation in filter(lambda r: r.role == "value" or r.role == "limit_to_extruder", relations):
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if relation.type == RelationType.RequiresTarget:
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continue
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relations_set.add(relation.target.key)
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self._addRelations(relations_set, relation.target.relations)
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