StartSliceJob.py 26 KB

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  1. # Copyright (c) 2021-2022 Ultimaker B.V.
  2. # Cura is released under the terms of the LGPLv3 or higher.
  3. import numpy
  4. from string import Formatter
  5. from enum import IntEnum
  6. import time
  7. from typing import Any, cast, Dict, List, Optional, Set
  8. import re
  9. import pyArcus as Arcus # For typing.
  10. from PyQt6.QtCore import QCoreApplication
  11. from UM.Job import Job
  12. from UM.Logger import Logger
  13. from UM.Scene.SceneNode import SceneNode
  14. from UM.Settings.ContainerStack import ContainerStack #For typing.
  15. from UM.Settings.InstanceContainer import InstanceContainer
  16. from UM.Settings.Interfaces import ContainerInterface
  17. from UM.Settings.SettingDefinition import SettingDefinition
  18. from UM.Settings.SettingRelation import SettingRelation #For typing.
  19. from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
  20. from UM.Scene.Scene import Scene #For typing.
  21. from UM.Settings.Validator import ValidatorState
  22. from UM.Settings.SettingRelation import RelationType
  23. from cura.CuraApplication import CuraApplication
  24. from cura.Scene.CuraSceneNode import CuraSceneNode
  25. from cura.OneAtATimeIterator import OneAtATimeIterator
  26. from cura.Settings.ExtruderManager import ExtruderManager
  27. NON_PRINTING_MESH_SETTINGS = ["anti_overhang_mesh", "infill_mesh", "cutting_mesh"]
  28. class StartJobResult(IntEnum):
  29. Finished = 1
  30. Error = 2
  31. SettingError = 3
  32. NothingToSlice = 4
  33. MaterialIncompatible = 5
  34. BuildPlateError = 6
  35. ObjectSettingError = 7 #When an error occurs in per-object settings.
  36. ObjectsWithDisabledExtruder = 8
  37. class GcodeStartEndFormatter(Formatter):
  38. """Formatter class that handles token expansion in start/end gcode"""
  39. def __init__(self, default_extruder_nr: int = -1) -> None:
  40. super().__init__()
  41. self._default_extruder_nr = default_extruder_nr
  42. def get_value(self, key: str, args: str, kwargs: dict) -> str: #type: ignore # [CodeStyle: get_value is an overridden function from the Formatter class]
  43. # The kwargs dictionary contains a dictionary for each stack (with a string of the extruder_nr as their key),
  44. # and a default_extruder_nr to use when no extruder_nr is specified
  45. extruder_nr = self._default_extruder_nr
  46. key_fragments = [fragment.strip() for fragment in key.split(",")]
  47. if len(key_fragments) == 2:
  48. try:
  49. extruder_nr = int(key_fragments[1])
  50. except ValueError:
  51. try:
  52. extruder_nr = int(kwargs["-1"][key_fragments[1]]) # get extruder_nr values from the global stack #TODO: How can you ever provide the '-1' kwarg?
  53. except (KeyError, ValueError):
  54. # either the key does not exist, or the value is not an int
  55. Logger.log("w", "Unable to determine stack nr '%s' for key '%s' in start/end g-code, using global stack", key_fragments[1], key_fragments[0])
  56. elif len(key_fragments) != 1:
  57. Logger.log("w", "Incorrectly formatted placeholder '%s' in start/end g-code", key)
  58. return "{" + key + "}"
  59. key = key_fragments[0]
  60. default_value_str = "{" + key + "}"
  61. value = default_value_str
  62. # "-1" is global stack, and if the setting value exists in the global stack, use it as the fallback value.
  63. if key in kwargs["-1"]:
  64. value = kwargs["-1"][key]
  65. if str(extruder_nr) in kwargs and key in kwargs[str(extruder_nr)]:
  66. value = kwargs[str(extruder_nr)][key]
  67. if value == default_value_str:
  68. Logger.log("w", "Unable to replace '%s' placeholder in start/end g-code", key)
  69. return value
  70. class StartSliceJob(Job):
  71. """Job class that builds up the message of scene data to send to CuraEngine."""
  72. def __init__(self, slice_message: Arcus.PythonMessage) -> None:
  73. super().__init__()
  74. self._scene = CuraApplication.getInstance().getController().getScene() #type: Scene
  75. self._slice_message: Arcus.PythonMessage = slice_message
  76. self._is_cancelled = False #type: bool
  77. self._build_plate_number = None #type: Optional[int]
  78. self._all_extruders_settings = None #type: Optional[Dict[str, Any]] # cache for all setting values from all stacks (global & extruder) for the current machine
  79. def getSliceMessage(self) -> Arcus.PythonMessage:
  80. return self._slice_message
  81. def setBuildPlate(self, build_plate_number: int) -> None:
  82. self._build_plate_number = build_plate_number
  83. def _checkStackForErrors(self, stack: ContainerStack) -> bool:
  84. """Check if a stack has any errors."""
  85. """returns true if it has errors, false otherwise."""
  86. top_of_stack = cast(InstanceContainer, stack.getTop()) # Cache for efficiency.
  87. changed_setting_keys = top_of_stack.getAllKeys()
  88. # Add all relations to changed settings as well.
  89. for key in top_of_stack.getAllKeys():
  90. instance = top_of_stack.getInstance(key)
  91. if instance is None:
  92. continue
  93. self._addRelations(changed_setting_keys, instance.definition.relations)
  94. Job.yieldThread()
  95. for changed_setting_key in changed_setting_keys:
  96. if not stack.getProperty(changed_setting_key, "enabled"):
  97. continue
  98. validation_state = stack.getProperty(changed_setting_key, "validationState")
  99. if validation_state is None:
  100. definition = cast(SettingDefinition, stack.getSettingDefinition(changed_setting_key))
  101. validator_type = SettingDefinition.getValidatorForType(definition.type)
  102. if validator_type:
  103. validator = validator_type(changed_setting_key)
  104. validation_state = validator(stack)
  105. if validation_state in (
  106. ValidatorState.Exception, ValidatorState.MaximumError, ValidatorState.MinimumError, ValidatorState.Invalid):
  107. Logger.log("w", "Setting %s is not valid, but %s. Aborting slicing.", changed_setting_key, validation_state)
  108. return True
  109. Job.yieldThread()
  110. return False
  111. def run(self) -> None:
  112. """Runs the job that initiates the slicing."""
  113. if self._build_plate_number is None:
  114. self.setResult(StartJobResult.Error)
  115. return
  116. stack = CuraApplication.getInstance().getGlobalContainerStack()
  117. if not stack:
  118. self.setResult(StartJobResult.Error)
  119. return
  120. # Don't slice if there is a setting with an error value.
  121. if CuraApplication.getInstance().getMachineManager().stacksHaveErrors:
  122. self.setResult(StartJobResult.SettingError)
  123. return
  124. if CuraApplication.getInstance().getBuildVolume().hasErrors():
  125. self.setResult(StartJobResult.BuildPlateError)
  126. return
  127. # Wait for error checker to be done.
  128. while CuraApplication.getInstance().getMachineErrorChecker().needToWaitForResult:
  129. time.sleep(0.1)
  130. if CuraApplication.getInstance().getMachineErrorChecker().hasError:
  131. self.setResult(StartJobResult.SettingError)
  132. return
  133. # Don't slice if the buildplate or the nozzle type is incompatible with the materials
  134. if not CuraApplication.getInstance().getMachineManager().variantBuildplateCompatible and \
  135. not CuraApplication.getInstance().getMachineManager().variantBuildplateUsable:
  136. self.setResult(StartJobResult.MaterialIncompatible)
  137. return
  138. for extruder_stack in stack.extruderList:
  139. material = extruder_stack.findContainer({"type": "material"})
  140. if not extruder_stack.isEnabled:
  141. continue
  142. if material:
  143. if material.getMetaDataEntry("compatible") == False:
  144. self.setResult(StartJobResult.MaterialIncompatible)
  145. return
  146. # Don't slice if there is a per object setting with an error value.
  147. for node in DepthFirstIterator(self._scene.getRoot()):
  148. if not isinstance(node, CuraSceneNode) or not node.isSelectable():
  149. continue
  150. if self._checkStackForErrors(node.callDecoration("getStack")):
  151. self.setResult(StartJobResult.ObjectSettingError)
  152. return
  153. # Remove old layer data.
  154. for node in DepthFirstIterator(self._scene.getRoot()):
  155. if node.callDecoration("getLayerData") and node.callDecoration("getBuildPlateNumber") == self._build_plate_number:
  156. # Since we walk through all nodes in the scene, they always have a parent.
  157. cast(SceneNode, node.getParent()).removeChild(node)
  158. break
  159. # Get the objects in their groups to print.
  160. object_groups = []
  161. if stack.getProperty("print_sequence", "value") == "one_at_a_time":
  162. modifier_mesh_nodes = []
  163. for node in DepthFirstIterator(self._scene.getRoot()):
  164. build_plate_number = node.callDecoration("getBuildPlateNumber")
  165. if node.callDecoration("isNonPrintingMesh") and build_plate_number == self._build_plate_number:
  166. modifier_mesh_nodes.append(node)
  167. for node in OneAtATimeIterator(self._scene.getRoot()):
  168. temp_list = []
  169. # Filter on current build plate
  170. build_plate_number = node.callDecoration("getBuildPlateNumber")
  171. if build_plate_number is not None and build_plate_number != self._build_plate_number:
  172. continue
  173. children = node.getAllChildren()
  174. children.append(node)
  175. for child_node in children:
  176. mesh_data = child_node.getMeshData()
  177. if mesh_data and mesh_data.getVertices() is not None:
  178. temp_list.append(child_node)
  179. if temp_list:
  180. object_groups.append(temp_list + modifier_mesh_nodes)
  181. Job.yieldThread()
  182. if len(object_groups) == 0:
  183. Logger.log("w", "No objects suitable for one at a time found, or no correct order found")
  184. else:
  185. temp_list = []
  186. has_printing_mesh = False
  187. for node in DepthFirstIterator(self._scene.getRoot()):
  188. mesh_data = node.getMeshData()
  189. if node.callDecoration("isSliceable") and mesh_data and mesh_data.getVertices() is not None:
  190. is_non_printing_mesh = bool(node.callDecoration("isNonPrintingMesh"))
  191. # Find a reason not to add the node
  192. if node.callDecoration("getBuildPlateNumber") != self._build_plate_number:
  193. continue
  194. if getattr(node, "_outside_buildarea", False) and not is_non_printing_mesh:
  195. continue
  196. temp_list.append(node)
  197. if not is_non_printing_mesh:
  198. has_printing_mesh = True
  199. Job.yieldThread()
  200. # If the list doesn't have any model with suitable settings then clean the list
  201. # otherwise CuraEngine will crash
  202. if not has_printing_mesh:
  203. temp_list.clear()
  204. if temp_list:
  205. object_groups.append(temp_list)
  206. global_stack = CuraApplication.getInstance().getGlobalContainerStack()
  207. if not global_stack:
  208. return
  209. extruders_enabled = [stack.isEnabled for stack in global_stack.extruderList]
  210. filtered_object_groups = []
  211. has_model_with_disabled_extruders = False
  212. associated_disabled_extruders = set()
  213. for group in object_groups:
  214. stack = global_stack
  215. skip_group = False
  216. for node in group:
  217. # Only check if the printing extruder is enabled for printing meshes
  218. is_non_printing_mesh = node.callDecoration("evaluateIsNonPrintingMesh")
  219. extruder_position = int(node.callDecoration("getActiveExtruderPosition"))
  220. if not is_non_printing_mesh and not extruders_enabled[extruder_position]:
  221. skip_group = True
  222. has_model_with_disabled_extruders = True
  223. associated_disabled_extruders.add(extruder_position)
  224. if not skip_group:
  225. filtered_object_groups.append(group)
  226. if has_model_with_disabled_extruders:
  227. self.setResult(StartJobResult.ObjectsWithDisabledExtruder)
  228. associated_disabled_extruders = {p + 1 for p in associated_disabled_extruders}
  229. self.setMessage(", ".join(map(str, sorted(associated_disabled_extruders))))
  230. return
  231. # There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
  232. # able to find a possible sequence or because there are no objects on the build plate (or they are outside
  233. # the build volume)
  234. if not filtered_object_groups:
  235. self.setResult(StartJobResult.NothingToSlice)
  236. return
  237. self._buildGlobalSettingsMessage(stack)
  238. self._buildGlobalInheritsStackMessage(stack)
  239. # Build messages for extruder stacks
  240. for extruder_stack in global_stack.extruderList:
  241. self._buildExtruderMessage(extruder_stack)
  242. for group in filtered_object_groups:
  243. group_message = self._slice_message.addRepeatedMessage("object_lists")
  244. parent = group[0].getParent()
  245. if parent is not None and parent.callDecoration("isGroup"):
  246. self._handlePerObjectSettings(cast(CuraSceneNode, parent), group_message)
  247. for object in group:
  248. mesh_data = object.getMeshData()
  249. if mesh_data is None:
  250. continue
  251. rot_scale = object.getWorldTransformation().getTransposed().getData()[0:3, 0:3]
  252. translate = object.getWorldTransformation().getData()[:3, 3]
  253. # This effectively performs a limited form of MeshData.getTransformed that ignores normals.
  254. verts = mesh_data.getVertices()
  255. verts = verts.dot(rot_scale)
  256. verts += translate
  257. # Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
  258. verts[:, [1, 2]] = verts[:, [2, 1]]
  259. verts[:, 1] *= -1
  260. obj = group_message.addRepeatedMessage("objects")
  261. obj.id = id(object)
  262. obj.name = object.getName()
  263. indices = mesh_data.getIndices()
  264. if indices is not None:
  265. flat_verts = numpy.take(verts, indices.flatten(), axis=0)
  266. else:
  267. flat_verts = numpy.array(verts)
  268. obj.vertices = flat_verts
  269. self._handlePerObjectSettings(cast(CuraSceneNode, object), obj)
  270. Job.yieldThread()
  271. self.setResult(StartJobResult.Finished)
  272. def cancel(self) -> None:
  273. super().cancel()
  274. self._is_cancelled = True
  275. def isCancelled(self) -> bool:
  276. return self._is_cancelled
  277. def setIsCancelled(self, value: bool):
  278. self._is_cancelled = value
  279. def _buildReplacementTokens(self, stack: ContainerStack) -> Dict[str, Any]:
  280. """Creates a dictionary of tokens to replace in g-code pieces.
  281. This indicates what should be replaced in the start and end g-codes.
  282. :param stack: The stack to get the settings from to replace the tokens with.
  283. :return: A dictionary of replacement tokens to the values they should be replaced with.
  284. """
  285. result = {}
  286. for key in stack.getAllKeys():
  287. result[key] = stack.getProperty(key, "value")
  288. Job.yieldThread()
  289. # Material identification in addition to non-human-readable GUID
  290. result["material_id"] = stack.material.getMetaDataEntry("base_file", "")
  291. result["material_type"] = stack.material.getMetaDataEntry("material", "")
  292. result["material_name"] = stack.material.getMetaDataEntry("name", "")
  293. result["material_brand"] = stack.material.getMetaDataEntry("brand", "")
  294. # Renamed settings.
  295. result["print_bed_temperature"] = result["material_bed_temperature"]
  296. result["print_temperature"] = result["material_print_temperature"]
  297. result["travel_speed"] = result["speed_travel"]
  298. #Some extra settings.
  299. result["time"] = time.strftime("%H:%M:%S")
  300. result["date"] = time.strftime("%d-%m-%Y")
  301. result["day"] = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][int(time.strftime("%w"))]
  302. result["initial_extruder_nr"] = CuraApplication.getInstance().getExtruderManager().getInitialExtruderNr()
  303. return result
  304. def _cacheAllExtruderSettings(self):
  305. global_stack = cast(ContainerStack, CuraApplication.getInstance().getGlobalContainerStack())
  306. # NB: keys must be strings for the string formatter
  307. self._all_extruders_settings = {
  308. "-1": self._buildReplacementTokens(global_stack)
  309. }
  310. QCoreApplication.processEvents() # Ensure that the GUI does not freeze.
  311. for extruder_stack in ExtruderManager.getInstance().getActiveExtruderStacks():
  312. extruder_nr = extruder_stack.getProperty("extruder_nr", "value")
  313. self._all_extruders_settings[str(extruder_nr)] = self._buildReplacementTokens(extruder_stack)
  314. QCoreApplication.processEvents() # Ensure that the GUI does not freeze.
  315. def _expandGcodeTokens(self, value: str, default_extruder_nr: int = -1) -> str:
  316. """Replace setting tokens in a piece of g-code.
  317. :param value: A piece of g-code to replace tokens in.
  318. :param default_extruder_nr: Stack nr to use when no stack nr is specified, defaults to the global stack
  319. """
  320. if not self._all_extruders_settings:
  321. self._cacheAllExtruderSettings()
  322. try:
  323. # any setting can be used as a token
  324. fmt = GcodeStartEndFormatter(default_extruder_nr = default_extruder_nr)
  325. if self._all_extruders_settings is None:
  326. return ""
  327. settings = self._all_extruders_settings.copy()
  328. settings["default_extruder_nr"] = default_extruder_nr
  329. return str(fmt.format(value, **settings))
  330. except:
  331. Logger.logException("w", "Unable to do token replacement on start/end g-code")
  332. return str(value)
  333. def _buildExtruderMessage(self, stack: ContainerStack) -> None:
  334. """Create extruder message from stack"""
  335. message = self._slice_message.addRepeatedMessage("extruders")
  336. message.id = int(stack.getMetaDataEntry("position"))
  337. if not self._all_extruders_settings:
  338. self._cacheAllExtruderSettings()
  339. if self._all_extruders_settings is None:
  340. return
  341. extruder_nr = stack.getProperty("extruder_nr", "value")
  342. settings = self._all_extruders_settings[str(extruder_nr)].copy()
  343. # Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
  344. settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")
  345. # Replace the setting tokens in start and end g-code.
  346. extruder_nr = stack.getProperty("extruder_nr", "value")
  347. settings["machine_extruder_start_code"] = self._expandGcodeTokens(settings["machine_extruder_start_code"], extruder_nr)
  348. settings["machine_extruder_end_code"] = self._expandGcodeTokens(settings["machine_extruder_end_code"], extruder_nr)
  349. global_definition = cast(ContainerInterface, cast(ContainerStack, stack.getNextStack()).getBottom())
  350. own_definition = cast(ContainerInterface, stack.getBottom())
  351. for key, value in settings.items():
  352. # Do not send settings that are not settable_per_extruder.
  353. # Since these can only be set in definition files, we only have to ask there.
  354. if not global_definition.getProperty(key, "settable_per_extruder") and \
  355. not own_definition.getProperty(key, "settable_per_extruder"):
  356. continue
  357. setting = message.getMessage("settings").addRepeatedMessage("settings")
  358. setting.name = key
  359. setting.value = str(value).encode("utf-8")
  360. Job.yieldThread()
  361. def _buildGlobalSettingsMessage(self, stack: ContainerStack) -> None:
  362. """Sends all global settings to the engine.
  363. The settings are taken from the global stack. This does not include any
  364. per-extruder settings or per-object settings.
  365. """
  366. if not self._all_extruders_settings:
  367. self._cacheAllExtruderSettings()
  368. if self._all_extruders_settings is None:
  369. return
  370. settings = self._all_extruders_settings["-1"].copy()
  371. # Pre-compute material material_bed_temp_prepend and material_print_temp_prepend
  372. start_gcode = settings["machine_start_gcode"]
  373. # Remove all the comments from the start g-code
  374. start_gcode = re.sub(r";.+?(\n|$)", "\n", start_gcode)
  375. bed_temperature_settings = ["material_bed_temperature", "material_bed_temperature_layer_0"]
  376. pattern = r"\{(%s)(,\s?\w+)?\}" % "|".join(bed_temperature_settings) # match {setting} as well as {setting, extruder_nr}
  377. settings["material_bed_temp_prepend"] = re.search(pattern, start_gcode) == None
  378. 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", "print_temperature"]
  379. pattern = r"\{(%s)(,\s?\w+)?\}" % "|".join(print_temperature_settings) # match {setting} as well as {setting, extruder_nr}
  380. settings["material_print_temp_prepend"] = re.search(pattern, start_gcode) is None
  381. # Replace the setting tokens in start and end g-code.
  382. # Use values from the first used extruder by default so we get the expected temperatures
  383. initial_extruder_nr = CuraApplication.getInstance().getExtruderManager().getInitialExtruderNr()
  384. settings["machine_start_gcode"] = self._expandGcodeTokens(settings["machine_start_gcode"], initial_extruder_nr)
  385. settings["machine_end_gcode"] = self._expandGcodeTokens(settings["machine_end_gcode"], initial_extruder_nr)
  386. # Add all sub-messages for each individual setting.
  387. for key, value in settings.items():
  388. setting_message = self._slice_message.getMessage("global_settings").addRepeatedMessage("settings")
  389. setting_message.name = key
  390. setting_message.value = str(value).encode("utf-8")
  391. Job.yieldThread()
  392. def _buildGlobalInheritsStackMessage(self, stack: ContainerStack) -> None:
  393. """Sends for some settings which extruder they should fallback to if not set.
  394. This is only set for settings that have the limit_to_extruder
  395. property.
  396. :param stack: The global stack with all settings, from which to read the
  397. limit_to_extruder property.
  398. """
  399. for key in stack.getAllKeys():
  400. extruder_position = int(round(float(stack.getProperty(key, "limit_to_extruder"))))
  401. if extruder_position >= 0: # Set to a specific extruder.
  402. setting_extruder = self._slice_message.addRepeatedMessage("limit_to_extruder")
  403. setting_extruder.name = key
  404. setting_extruder.extruder = extruder_position
  405. Job.yieldThread()
  406. def _handlePerObjectSettings(self, node: CuraSceneNode, message: Arcus.PythonMessage):
  407. """Check if a node has per object settings and ensure that they are set correctly in the message
  408. :param node: Node to check.
  409. :param message: object_lists message to put the per object settings in
  410. """
  411. stack = node.callDecoration("getStack")
  412. # Check if the node has a stack attached to it and the stack has any settings in the top container.
  413. if not stack:
  414. return
  415. # Check all settings for relations, so we can also calculate the correct values for dependent settings.
  416. top_of_stack = stack.getTop() # Cache for efficiency.
  417. changed_setting_keys = top_of_stack.getAllKeys()
  418. # Add all relations to changed settings as well.
  419. for key in top_of_stack.getAllKeys():
  420. instance = top_of_stack.getInstance(key)
  421. self._addRelations(changed_setting_keys, instance.definition.relations)
  422. Job.yieldThread()
  423. # Ensure that the engine is aware what the build extruder is.
  424. changed_setting_keys.add("extruder_nr")
  425. # Get values for all changed settings
  426. for key in changed_setting_keys:
  427. setting = message.addRepeatedMessage("settings")
  428. setting.name = key
  429. extruder = int(round(float(stack.getProperty(key, "limit_to_extruder"))))
  430. # Check if limited to a specific extruder, but not overridden by per-object settings.
  431. if extruder >= 0 and key not in changed_setting_keys:
  432. limited_stack = ExtruderManager.getInstance().getActiveExtruderStacks()[extruder]
  433. else:
  434. limited_stack = stack
  435. setting.value = str(limited_stack.getProperty(key, "value")).encode("utf-8")
  436. Job.yieldThread()
  437. def _addRelations(self, relations_set: Set[str], relations: List[SettingRelation]):
  438. """Recursive function to put all settings that require each other for value changes in a list
  439. :param relations_set: Set of keys of settings that are influenced
  440. :param relations: list of relation objects that need to be checked.
  441. """
  442. for relation in filter(lambda r: r.role == "value" or r.role == "limit_to_extruder", relations):
  443. if relation.type == RelationType.RequiresTarget:
  444. continue
  445. relations_set.add(relation.target.key)
  446. self._addRelations(relations_set, relation.target.relations)