def slice(self, **kwargs):
if not self._enabled:
return
if self._slicing:
if not kwargs.get("force_restart", True):
return
self._slicing = False
self._restart = True
if self._process is not None:
Logger.log("d", "Killing engine process")
try:
self._process.terminate()
except: # terminating a process that is already terminating causes an exception, silently ignore this.
pass
self.slicingCancelled.emit()
return
object_groups = []
if self._settings.getSettingValueByKey("print_sequence") == "One at a time":
for node in OneAtATimeIterator(self._scene.getRoot()):
temp_list = []
children = node.getAllChildren()
children.append(node)
for child_node in children:
if type(child_node) is SceneNode and child_node.getMeshData() and child_node.getMeshData().getVertices() is not None:
temp_list.append(child_node)
object_groups.append(temp_list)
else:
temp_list = []
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData() and node.getMeshData().getVertices() is not None:
if not getattr(node, "_outside_buildarea", False):
temp_list.append(node)
if len(temp_list) == 0:
return
object_groups.append(temp_list)
#for node in DepthFirstIterator(self._scene.getRoot()):
# if type(node) is SceneNode and node.getMeshData() and node.getMeshData().getVertices() is not None:
# if not getattr(node, "_outside_buildarea", False):
# objects.append(node)
if len(object_groups) == 0:
return #No point in slicing an empty build plate
if kwargs.get("settings", self._settings).hasErrorValue():
return #No slicing if we have error values since those are by definition illegal values.
self._slicing = True
self.slicingStarted.emit()
self._report_progress = kwargs.get("report_progress", True)
if self._report_progress:
self.processingProgress.emit(0.0)
self._sendSettings(kwargs.get("settings", self._settings))
self._scene.acquireLock()
# Set the gcode as an empty list. This will be filled with strings by GCodeLayer messages.
# This is done so the gcode can be fragmented in memory and does not need a continues memory space.
# (AKA. This prevents MemoryErrors)
self._save_gcode = kwargs.get("save_gcode", True)
if self._save_gcode:
setattr(self._scene, "gcode_list", [])
self._save_polygons = kwargs.get("save_polygons", True)
slice_message = Cura_pb2.Slice()
for group in object_groups:
group_message = slice_message.object_lists.add()
for object in group:
mesh_data = object.getMeshData().getTransformed(object.getWorldTransformation())
obj = group_message.objects.add()
obj.id = id(object)
verts = numpy.array(mesh_data.getVertices())
verts[:,[1,2]] = verts[:,[2,1]]
verts[:,1] *= -1
obj.vertices = verts.tostring()
self._scene.releaseLock()
self._socket.sendMessage(slice_message)
def run(self) -> None:
if self._build_plate_number is None:
self.setResult(StartJobResult.Error)
return
stack = CuraApplication.getInstance().getGlobalContainerStack()
if not stack:
self.setResult(StartJobResult.Error)
return
# Don't slice if there is a setting with an error value.
if CuraApplication.getInstance().getMachineManager().stacksHaveErrors:
self.setResult(StartJobResult.SettingError)
return
if CuraApplication.getInstance().getBuildVolume().hasErrors():
self.setResult(StartJobResult.BuildPlateError)
return
# Don't slice if the buildplate or the nozzle type is incompatible with the materials
if not CuraApplication.getInstance().getMachineManager().variantBuildplateCompatible and \
not CuraApplication.getInstance().getMachineManager().variantBuildplateUsable:
self.setResult(StartJobResult.MaterialIncompatible)
return
for position, extruder_stack in stack.extruders.items():
material = extruder_stack.findContainer({"type": "material"})
if not extruder_stack.isEnabled:
continue
if material:
if material.getMetaDataEntry("compatible") == False:
self.setResult(StartJobResult.MaterialIncompatible)
return
# Don't slice if there is a per object setting with an error value.
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
if not isinstance(node, CuraSceneNode) or not node.isSelectable():
continue
if self._checkStackForErrors(node.callDecoration("getStack")):
self.setResult(StartJobResult.ObjectSettingError)
return
with self._scene.getSceneLock():
# Remove old layer data.
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
if node.callDecoration("getLayerData") and node.callDecoration(
"getBuildPlateNumber") == self._build_plate_number:
node.getParent().removeChild(node)
break
# Get the objects in their groups to print.
object_groups = []
if stack.getProperty("print_sequence", "value") == "one_at_a_time":
for node in OneAtATimeIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
temp_list = []
# Node can't be printed, so don't bother sending it.
if getattr(node, "_outside_buildarea", False):
continue
# Filter on current build plate
build_plate_number = node.callDecoration(
"getBuildPlateNumber")
if build_plate_number is not None and build_plate_number != self._build_plate_number:
continue
children = node.getAllChildren()
children.append(node)
for child_node in children:
if child_node.getMeshData() and child_node.getMeshData(
).getVertices() is not None:
temp_list.append(child_node)
if temp_list:
object_groups.append(temp_list)
Job.yieldThread()
if len(object_groups) == 0:
Logger.log(
"w",
"No objects suitable for one at a time found, or no correct order found"
)
else:
temp_list = []
has_printing_mesh = False
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
if node.callDecoration("isSliceable") and node.getMeshData(
) and node.getMeshData().getVertices() is not None:
per_object_stack = node.callDecoration("getStack")
is_non_printing_mesh = False
if per_object_stack:
is_non_printing_mesh = any(
per_object_stack.getProperty(key, "value")
for key in NON_PRINTING_MESH_SETTINGS)
# Find a reason not to add the node
if node.callDecoration("getBuildPlateNumber"
) != self._build_plate_number:
continue
if getattr(node, "_outside_buildarea",
False) and not is_non_printing_mesh:
continue
temp_list.append(node)
if not is_non_printing_mesh:
has_printing_mesh = True
Job.yieldThread()
#If the list doesn't have any model with suitable settings then clean the list
# otherwise CuraEngine will crash
if not has_printing_mesh:
temp_list.clear()
if temp_list:
object_groups.append(temp_list)
global_stack = CuraApplication.getInstance(
).getGlobalContainerStack()
if not global_stack:
return
extruders_enabled = {
position: stack.isEnabled
for position, stack in global_stack.extruders.items()
}
filtered_object_groups = []
has_model_with_disabled_extruders = False
associated_disabled_extruders = set()
for group in object_groups:
stack = global_stack
skip_group = False
for node in group:
# Only check if the printing extruder is enabled for printing meshes
is_non_printing_mesh = node.callDecoration(
"evaluateIsNonPrintingMesh")
extruder_position = node.callDecoration(
"getActiveExtruderPosition")
if not is_non_printing_mesh and not extruders_enabled[
extruder_position]:
skip_group = True
has_model_with_disabled_extruders = True
associated_disabled_extruders.add(extruder_position)
if not skip_group:
filtered_object_groups.append(group)
if has_model_with_disabled_extruders:
self.setResult(StartJobResult.ObjectsWithDisabledExtruder)
associated_disabled_extruders = {
str(c)
for c in sorted(
[int(p) + 1 for p in associated_disabled_extruders])
}
self.setMessage(", ".join(associated_disabled_extruders))
return
# There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
# able to find a possible sequence or because there are no objects on the build plate (or they are outside
# the build volume)
if not filtered_object_groups:
self.setResult(StartJobResult.NothingToSlice)
return
self._buildGlobalSettingsMessage(stack)
self._buildGlobalInheritsStackMessage(stack)
# Build messages for extruder stacks
for extruder_stack in ExtruderManager.getInstance(
).getMachineExtruders(stack.getId()):
self._buildExtruderMessage(extruder_stack)
for group in filtered_object_groups:
group_message = self._slice_message.addRepeatedMessage(
"object_lists")
if group[0].getParent() is not None and group[0].getParent(
).callDecoration("isGroup"):
self._handlePerObjectSettings(group[0].getParent(),
group_message)
for object in group:
mesh_data = object.getMeshData()
rot_scale = object.getWorldTransformation().getTransposed(
).getData()[0:3, 0:3]
translate = object.getWorldTransformation().getData()[:3,
3]
# This effectively performs a limited form of MeshData.getTransformed that ignores normals.
verts = mesh_data.getVertices()
verts = verts.dot(rot_scale)
verts += translate
# Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj = group_message.addRepeatedMessage("objects")
obj.id = id(object)
indices = mesh_data.getIndices()
if indices is not None:
flat_verts = numpy.take(verts,
indices.flatten(),
axis=0)
else:
flat_verts = numpy.array(verts)
obj.vertices = flat_verts
self._handlePerObjectSettings(object, obj)
Job.yieldThread()
self.setResult(StartJobResult.Finished)
def run(self) -> None:
if self._build_plate_number is None:
self.setResult(StartJobResult.Error)
return
stack = CuraApplication.getInstance().getGlobalContainerStack()
if not stack:
self.setResult(StartJobResult.Error)
return
# Don't slice if there is a setting with an error value.
if CuraApplication.getInstance().getMachineManager().stacksHaveErrors:
self.setResult(StartJobResult.SettingError)
return
if CuraApplication.getInstance().getBuildVolume().hasErrors():
self.setResult(StartJobResult.BuildPlateError)
return
# Don't slice if the buildplate or the nozzle type is incompatible with the materials
if not CuraApplication.getInstance().getMachineManager().variantBuildplateCompatible and \
not CuraApplication.getInstance().getMachineManager().variantBuildplateUsable:
self.setResult(StartJobResult.MaterialIncompatible)
return
for position, extruder_stack in stack.extruders.items():
material = extruder_stack.findContainer({"type": "material"})
if not extruder_stack.isEnabled:
continue
if material:
if material.getMetaDataEntry("compatible") == False:
self.setResult(StartJobResult.MaterialIncompatible)
return
# Don't slice if there is a per object setting with an error value.
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
if not isinstance(node, CuraSceneNode) or not node.isSelectable():
continue
if self._checkStackForErrors(node.callDecoration("getStack")):
self.setResult(StartJobResult.ObjectSettingError)
return
with self._scene.getSceneLock():
# Remove old layer data.
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
if node.callDecoration("getLayerData") and node.callDecoration(
"getBuildPlateNumber") == self._build_plate_number:
node.getParent().removeChild(node)
break
global_enable_support = stack.getProperty("support_enable",
"value")
# Get the objects in their groups to print.
object_groups = []
if stack.getProperty("print_sequence", "value") == "one_at_a_time":
# note that one_at_a_time printing is disabled on belt printers due to collission risk
for node in OneAtATimeIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
temp_list = []
# Node can't be printed, so don't bother sending it.
if getattr(node, "_outside_buildarea", False):
continue
# Filter on current build plate
build_plate_number = node.callDecoration(
"getBuildPlateNumber")
if build_plate_number is not None and build_plate_number != self._build_plate_number:
continue
children = node.getAllChildren()
children.append(node)
for child_node in children:
if child_node.getMeshData() and child_node.getMeshData(
).getVertices() is not None:
temp_list.append(child_node)
if temp_list:
object_groups.append(temp_list)
Job.yieldThread()
if len(object_groups) == 0:
Logger.log(
"w",
"No objects suitable for one at a time found, or no correct order found"
)
else:
temp_list = []
has_printing_mesh = False
# print convex hull nodes as "faux-raft"
print_convex_hulls = stack.getProperty("blackbelt_raft",
"value")
for node in DepthFirstIterator(
self._scene.getRoot()
): #type: ignore #Ignore type error because iter() should get called automatically by Python syntax.
slice_node = (print_convex_hulls
and type(node) is ConvexHullNode
) or node.callDecoration("isSliceable")
if slice_node and node.getMeshData() and node.getMeshData(
).getVertices() is not None:
per_object_stack = node.callDecoration("getStack")
is_non_printing_mesh = False
if per_object_stack:
is_non_printing_mesh = any(
per_object_stack.getProperty(key, "value")
for key in NON_PRINTING_MESH_SETTINGS)
# Find a reason not to add the node
if node.callDecoration(
"getBuildPlateNumber"
) != self._build_plate_number and type(
node) is not ConvexHullNode:
# NB: ConvexHullNodes get none of the usual decorators, so skip checking for them
continue
if getattr(node, "_outside_buildarea",
False) and not is_non_printing_mesh:
continue
temp_list.append(node)
if not is_non_printing_mesh:
has_printing_mesh = True
Job.yieldThread()
#If the list doesn't have any model with suitable settings then clean the list
# otherwise CuraEngine will crash
if not has_printing_mesh:
temp_list.clear()
if temp_list:
object_groups.append(temp_list)
global_stack = CuraApplication.getInstance(
).getGlobalContainerStack()
if not global_stack:
return
extruders_enabled = {
position: stack.isEnabled
for position, stack in global_stack.extruders.items()
}
filtered_object_groups = []
has_model_with_disabled_extruders = False
associated_disabled_extruders = set()
for group in object_groups:
stack = global_stack
skip_group = False
for node in group:
# Only check if the printing extruder is enabled for printing meshes
is_non_printing_mesh = node.callDecoration(
"evaluateIsNonPrintingMesh")
extruder_position = node.callDecoration(
"getActiveExtruderPosition")
if extruder_position is None: # raft meshes may not have an extruder position (yet)
extruder_position = "0"
if not is_non_printing_mesh and not extruders_enabled[
extruder_position]:
skip_group = True
has_model_with_disabled_extruders = True
associated_disabled_extruders.add(extruder_position)
if not skip_group:
filtered_object_groups.append(group)
if has_model_with_disabled_extruders:
self.setResult(StartJobResult.ObjectsWithDisabledExtruder)
associated_disabled_extruders = {
str(c)
for c in sorted(
[int(p) + 1 for p in associated_disabled_extruders])
}
self.setMessage(", ".join(associated_disabled_extruders))
return
# There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
# able to find a possible sequence or because there are no objects on the build plate (or they are outside
# the build volume)
if not filtered_object_groups:
self.setResult(StartJobResult.NothingToSlice)
return
container_registry = ContainerRegistry.getInstance()
stack_id = stack.getId()
# Adapt layer_height and material_flow for a slanted gantry
gantry_angle = self._scene.getRoot().callDecoration(
"getGantryAngle")
if gantry_angle: # not 0 or None
# Act on a copy of the stack, so these changes don't cause a reslice
_stack = CuraContainerStack(stack_id + "_temp")
for index, container in enumerate(stack.getContainers()):
if container_registry.isReadOnly(container.getId()):
_stack.replaceContainer(index, container)
else:
_stack.replaceContainer(index,
copy.deepcopy(container))
stack = _stack
# Make sure CuraEngine does not create any supports
# support_enable is set in the frontend so support options are settable,
# but CuraEngine support structures don't work for slanted gantry
stack.setProperty("support_enable", "value", False)
# Make sure CuraEngine does not create a raft (we create one manually)
# Adhesion type is used in the frontend to show the raft in the viewport
stack.setProperty("adhesion_type", "value", "none")
for key in ["layer_height", "layer_height_0"]:
current_value = stack.getProperty(key, "value")
stack.setProperty(key, "value",
current_value / math.sin(gantry_angle))
self._buildGlobalSettingsMessage(stack)
self._buildGlobalInheritsStackMessage(stack)
# Build messages for extruder stacks
# Send the extruder settings in the order of extruder positions. Somehow, if you send e.g. extruder 3 first,
# then CuraEngine can slice with the wrong settings. This I think should be fixed in CuraEngine as well.
extruder_stack_list = sorted(list(global_stack.extruders.items()),
key=lambda item: int(item[0]))
for _, extruder_stack in extruder_stack_list:
if gantry_angle: # not 0 or None
# Act on a copy of the stack, so these changes don't cause a reslice
_extruder_stack = CuraContainerStack(
extruder_stack.getId() + "_temp")
for index, container in enumerate(
extruder_stack.getContainers()):
if container_registry.isReadOnly(container.getId()):
_extruder_stack.replaceContainer(index, container)
else:
_extruder_stack.replaceContainer(
index, copy.deepcopy(container))
extruder_stack = _extruder_stack
extruder_stack.setNextStack(stack)
for key in [
"material_flow", "prime_tower_flow",
"spaghetti_flow"
]:
if extruder_stack.hasProperty(key, "value"):
current_value = extruder_stack.getProperty(
key, "value")
extruder_stack.setProperty(
key, "value",
current_value * math.sin(gantry_angle))
self._buildExtruderMessage(extruder_stack)
bottom_cutting_meshes = []
raft_meshes = []
support_meshes = []
if gantry_angle: # not 0 or None
for group in filtered_object_groups:
added_meshes = []
for object in group:
is_non_printing_mesh = False
per_object_stack = object.callDecoration("getStack")
# ConvexHullNodes get none of the usual decorators. If it made it here, it is meant to be printed
if type(object) is ConvexHullNode:
raft_thickness = stack.getProperty(
"blackbelt_raft_thickness", "value")
raft_margin = stack.getProperty(
"blackbelt_raft_margin", "value")
mb = MeshBuilder()
hull_polygon = object.getHull()
if raft_margin > 0:
hull_polygon = hull_polygon.getMinkowskiHull(
Polygon.approximatedCircle(raft_margin))
mb.addConvexPolygonExtrusion(
hull_polygon.getPoints()[::-1], 0,
raft_thickness)
new_node = self._addMeshFromBuilder(mb, "raftMesh")
added_meshes.append(new_node)
raft_meshes.append(new_node.getName())
elif not is_non_printing_mesh:
# add support mesh if needed
blackbelt_support_gantry_angle_bias = None
blackbelt_support_minimum_island_area = None
if per_object_stack:
is_non_printing_mesh = any(
per_object_stack.getProperty(key, "value")
for key in NON_PRINTING_MESH_SETTINGS)
node_enable_support = per_object_stack.getProperty(
"support_enable", "value")
if per_object_stack.getProperty(
"support_mesh", "value"):
node_enable_support = node_enable_support or per_object_stack.getProperty(
"support_mesh_drop_down", "value")
add_support_mesh = node_enable_support if node_enable_support is not None else global_enable_support
blackbelt_support_gantry_angle_bias = per_object_stack.getProperty(
"blackbelt_support_gantry_angle_bias",
"value")
blackbelt_support_minimum_island_area = per_object_stack.getProperty(
"blackbelt_support_minimum_island_area",
"value")
else:
add_support_mesh = global_enable_support
if add_support_mesh:
if blackbelt_support_gantry_angle_bias is None:
blackbelt_support_gantry_angle_bias = global_stack.getProperty(
"blackbelt_support_gantry_angle_bias",
"value")
biased_down_angle = math.radians(
blackbelt_support_gantry_angle_bias)
if blackbelt_support_minimum_island_area is None:
blackbelt_support_minimum_island_area = global_stack.getProperty(
"blackbelt_support_minimum_island_area",
"value")
support_mesh_data = SupportMeshCreator(
down_vector=numpy.array([
0, -math.cos(
math.radians(biased_down_angle)),
-math.sin(biased_down_angle)
]),
bottom_cut_off=stack.getProperty(
"wall_line_width_0", "value") / 2,
minimum_island_area=
blackbelt_support_minimum_island_area
).createSupportMeshForNode(object)
if support_mesh_data:
new_node = self._addMeshFromData(
support_mesh_data,
"generatedSupportMesh")
added_meshes.append(new_node)
support_meshes.append(new_node.getName())
# check if the bottom needs to be cut off
aabb = object.getBoundingBox()
if aabb.bottom < 0:
# mesh extends below the belt; add a cutting mesh to cut off the part below the bottom
height = -aabb.bottom
center = Vector(aabb.center.x, -height / 2,
aabb.center.z)
mb = MeshBuilder()
mb.addCube(width=aabb.width,
height=height,
depth=aabb.depth,
center=center)
new_node = self._addMeshFromBuilder(
mb, "bottomCuttingMesh")
added_meshes.append(new_node)
bottom_cutting_meshes.append(
new_node.getName())
if added_meshes:
group += added_meshes
transform_matrix = self._scene.getRoot().callDecoration(
"getTransformMatrix")
front_offset = None
raft_offset = 0
raft_speed = None
raft_flow = 1.0
if stack.getProperty("blackbelt_raft", "value"):
raft_offset = stack.getProperty(
"blackbelt_raft_thickness", "value") + stack.getProperty(
"blackbelt_raft_gap", "value")
raft_speed = stack.getProperty("blackbelt_raft_speed", "value")
raft_flow = stack.getProperty("blackbelt_raft_flow",
"value") * math.sin(gantry_angle)
adhesion_extruder_nr = stack.getProperty("adhesion_extruder_nr",
"value")
support_extruder_nr = stack.getProperty("support_extruder_nr",
"value")
for group in filtered_object_groups:
group_message = self._slice_message.addRepeatedMessage(
"object_lists")
if group[0].getParent() is not None and group[0].getParent(
).callDecoration("isGroup"):
self._handlePerObjectSettings(group[0].getParent(),
group_message)
if transform_matrix:
scene_front = None
for object in group:
if type(object) is ConvexHullNode:
continue
is_non_printing_mesh = object.getName(
) in bottom_cutting_meshes or object.getName(
) in raft_meshes
if not is_non_printing_mesh:
per_object_stack = object.callDecoration(
"getStack")
if per_object_stack:
is_non_printing_mesh = any(
per_object_stack.getProperty(key, "value")
for key in NON_PRINTING_MESH_SETTINGS)
if not is_non_printing_mesh:
_front = object.getBoundingBox().back
if scene_front is None or _front < scene_front:
scene_front = _front
if scene_front is not None:
front_offset = transformVertices(
numpy.array([[0, 0, scene_front]]),
transform_matrix)[0][1]
for object in group:
if type(object) is ConvexHullNode:
continue
mesh_data = object.getMeshData()
rot_scale = object.getWorldTransformation().getTransposed(
).getData()[0:3, 0:3]
translate = object.getWorldTransformation().getData()[:3,
3]
# offset all non-raft objects if rafts are enabled
# air gap is applied here to vertically offset objects from the raft
if object.getName() not in raft_meshes:
translate[1] += raft_offset
if front_offset:
translate[2] -= front_offset
# This effectively performs a limited form of MeshData.getTransformed that ignores normals.
verts = mesh_data.getVertices()
verts = verts.dot(rot_scale)
verts += translate
if transform_matrix:
verts = transformVertices(verts, transform_matrix)
# Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj = group_message.addRepeatedMessage("objects")
obj.id = id(object)
obj.name = object.getName()
indices = mesh_data.getIndices()
if indices is not None:
flat_verts = numpy.take(verts,
indices.flatten(),
axis=0)
else:
flat_verts = numpy.array(verts)
obj.vertices = flat_verts
if object.getName() in raft_meshes:
self._addSettingsMessage(
obj, {
"wall_line_count": 99999999,
"speed_wall_0": raft_speed,
"speed_wall_x": raft_speed,
"material_flow": raft_flow,
"extruder_nr": adhesion_extruder_nr
})
elif object.getName() in support_meshes:
self._addSettingsMessage(
obj, {
"support_mesh": "True",
"support_mesh_drop_down": "False",
"extruder_nr": support_extruder_nr
})
elif object.getName() in bottom_cutting_meshes:
self._addSettingsMessage(
obj, {
"cutting_mesh": True,
"wall_line_count": 0,
"top_layers": 0,
"bottom_layers": 0,
"infill_line_distance": 0,
"extruder_nr": 0
})
else:
self._handlePerObjectSettings(object, obj)
Job.yieldThread()
# Store the front-most coordinate of the scene so the scene can be moved back into place post slicing
# TODO: this should be handled per mesh-group instead of per scene
# One-at-a-time printing should be disabled for slanted gantry printers for now
self._scene.getRoot().callDecoration("setSceneFrontOffset",
front_offset)
self.setResult(StartJobResult.Finished)
def run(self):
stack = Application.getInstance().getGlobalContainerStack()
if not stack:
self.setResult(StartJobResult.Error)
return
# Don't slice if there is a setting with an error value.
if not Application.getInstance().getMachineManager(
).isActiveStackValid:
self.setResult(StartJobResult.SettingError)
return
# Don't slice if there is a per object setting with an error value.
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is not SceneNode or not node.isSelectable():
continue
if self._checkStackForErrors(node.callDecoration("getStack")):
self.setResult(StartJobResult.SettingError)
return
with self._scene.getSceneLock():
# Remove old layer data.
for node in DepthFirstIterator(self._scene.getRoot()):
if node.callDecoration("getLayerData"):
node.getParent().removeChild(node)
break
# Get the objects in their groups to print.
object_groups = []
if stack.getProperty("print_sequence", "value") == "one_at_a_time":
for node in OneAtATimeIterator(self._scene.getRoot()):
temp_list = []
# Node can't be printed, so don't bother sending it.
if getattr(node, "_outside_buildarea", False):
continue
children = node.getAllChildren()
children.append(node)
for child_node in children:
if type(child_node
) is SceneNode and child_node.getMeshData(
) and child_node.getMeshData().getVertices(
) is not None:
temp_list.append(child_node)
if temp_list:
object_groups.append(temp_list)
Job.yieldThread()
if len(object_groups) == 0:
Logger.log(
"w",
"No objects suitable for one at a time found, or no correct order found"
)
else:
temp_list = []
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData(
) and node.getMeshData().getVertices() is not None:
if not getattr(node, "_outside_buildarea", False):
temp_list.append(node)
Job.yieldThread()
if temp_list:
object_groups.append(temp_list)
if not object_groups:
self.setResult(StartJobResult.NothingToSlice)
return
self._buildGlobalSettingsMessage(stack)
for extruder_stack in cura.Settings.ExtruderManager.getInstance(
).getMachineExtruders(stack.getId()):
self._buildExtruderMessage(extruder_stack)
for group in object_groups:
group_message = self._slice_message.addRepeatedMessage(
"object_lists")
if group[0].getParent().callDecoration("isGroup"):
self._handlePerObjectSettings(group[0].getParent(),
group_message)
for object in group:
mesh_data = object.getMeshData().getTransformed(
object.getWorldTransformation())
obj = group_message.addRepeatedMessage("objects")
obj.id = id(object)
verts = numpy.array(mesh_data.getVertices())
# Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj.vertices = verts
self._handlePerObjectSettings(object, obj)
Job.yieldThread()
self.setResult(StartJobResult.Finished)
def run(self):
with self._scene.getSceneLock():
for node in DepthFirstIterator(self._scene.getRoot()):
if node.callDecoration("getLayerData"):
node.getParent().removeChild(node)
break
object_groups = []
if self._profile.getSettingValue(
"print_sequence") == "one_at_a_time":
for node in OneAtATimeIterator(self._scene.getRoot()):
temp_list = []
if getattr(node, "_outside_buildarea", False):
continue
children = node.getAllChildren()
children.append(node)
for child_node in children:
if type(child_node
) is SceneNode and child_node.getMeshData(
) and child_node.getMeshData().getVertices(
) is not None:
temp_list.append(child_node)
if temp_list:
object_groups.append(temp_list)
Job.yieldThread()
if len(object_groups) == 0:
Logger.log(
"w",
"No objects suitable for one at a time found, or no correct order found"
)
else:
temp_list = []
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData(
) and node.getMeshData().getVertices() is not None:
if not getattr(node, "_outside_buildarea", False):
temp_list.append(node)
Job.yieldThread()
if temp_list:
object_groups.append(temp_list)
if not object_groups:
return
self._buildSettingsMessage(self._profile)
for group in object_groups:
group_message = self._slice_message.addRepeatedMessage(
"object_lists")
if group[0].getParent().callDecoration("isGroup"):
self._handlePerObjectSettings(group[0].getParent(),
group_message)
for object in group:
mesh_data = object.getMeshData().getTransformed(
object.getWorldTransformation())
obj = group_message.addRepeatedMessage("objects")
obj.id = id(object)
verts = numpy.array(mesh_data.getVertices())
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj.vertices = verts
self._handlePerObjectSettings(object, obj)
Job.yieldThread()
self.setResult(True)
def slice(self, **kwargs):
if not self._enabled:
return
if self._slicing:
if not kwargs.get("force_restart", True):
return
self._slicing = False
self._restart = True
if self._process is not None:
Logger.log("d", "Killing engine process")
try:
self._process.terminate()
except: # terminating a process that is already terminating causes an exception, silently ignore this.
pass
self.slicingCancelled.emit()
return
Logger.log("d", "Preparing to send slice data to engine.")
object_groups = []
if self._profile.getSettingValue("print_sequence") == "one_at_a_time":
for node in OneAtATimeIterator(self._scene.getRoot()):
temp_list = []
children = node.getAllChildren()
children.append(node)
for child_node in children:
if type(child_node) is SceneNode and child_node.getMeshData(
) and child_node.getMeshData().getVertices() is not None:
temp_list.append(child_node)
object_groups.append(temp_list)
else:
temp_list = []
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData(
) and node.getMeshData().getVertices() is not None:
if not getattr(node, "_outside_buildarea", False):
temp_list.append(node)
if len(temp_list) == 0:
self.processingProgress.emit(0.0)
return
object_groups.append(temp_list)
#for node in DepthFirstIterator(self._scene.getRoot()):
# if type(node) is SceneNode and node.getMeshData() and node.getMeshData().getVertices() is not None:
# if not getattr(node, "_outside_buildarea", False):
# objects.append(node)
if len(object_groups) == 0:
if self._message:
self._message.hide()
self._message = None
return #No point in slicing an empty build plate
if kwargs.get("profile", self._profile).hasErrorValue():
Logger.log('w', "Profile has error values. Aborting slicing")
if self._message:
self._message.hide()
self._message = None
self._message = Message(
catalog.i18nc(
"@info:status",
"Unable to slice. Please check your setting values for errors."
))
self._message.show()
return #No slicing if we have error values since those are by definition illegal values.
# Remove existing layer data (if any)
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData():
if node.callDecoration("getLayerData"):
Application.getInstance().getController().getScene(
).getRoot().removeChild(node)
break
Application.getInstance().getController().getScene().gcode_list = None
self._slicing = True
self.slicingStarted.emit()
self._report_progress = kwargs.get("report_progress", True)
if self._report_progress:
self.processingProgress.emit(0.0)
if not self._message:
self._message = Message(
catalog.i18nc("@info:status", "Slicing..."), 0, False, -1)
self._message.show()
else:
self._message.setProgress(-1)
self._sendSettings(kwargs.get("profile", self._profile))
self._scene.acquireLock()
# Set the gcode as an empty list. This will be filled with strings by GCodeLayer messages.
# This is done so the gcode can be fragmented in memory and does not need a continues memory space.
# (AKA. This prevents MemoryErrors)
self._save_gcode = kwargs.get("save_gcode", True)
if self._save_gcode:
setattr(self._scene, "gcode_list", [])
self._save_polygons = kwargs.get("save_polygons", True)
slice_message = Cura_pb2.Slice()
for group in object_groups:
group_message = slice_message.object_lists.add()
for object in group:
mesh_data = object.getMeshData().getTransformed(
object.getWorldTransformation())
obj = group_message.objects.add()
obj.id = id(object)
verts = numpy.array(mesh_data.getVertices())
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj.vertices = verts.tostring()
self._handlePerObjectSettings(object, obj)
# Hack to add per-object settings also to the "MeshGroup" in CuraEngine
# We really should come up with a better solution for this.
self._handlePerObjectSettings(group[0], group_message)
self._scene.releaseLock()
Logger.log("d", "Sending data to engine for slicing.")
self._socket.sendMessage(slice_message)
def run(self):
if self._build_plate_number is None:
self.setResult(StartJobResult.Error)
return
stack = Application.getInstance().getGlobalContainerStack()
if not stack:
self.setResult(StartJobResult.Error)
return
# Don't slice if there is a setting with an error value.
if Application.getInstance().getMachineManager().stacksHaveErrors:
self.setResult(StartJobResult.SettingError)
return
if Application.getInstance().getBuildVolume().hasErrors():
self.setResult(StartJobResult.BuildPlateError)
return
for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
material = extruder_stack.findContainer({"type": "material"})
if material:
if material.getMetaDataEntry("compatible") == False:
self.setResult(StartJobResult.MaterialIncompatible)
return
# Don't slice if there is a per object setting with an error value.
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is not CuraSceneNode or not node.isSelectable():
continue
if self._checkStackForErrors(node.callDecoration("getStack")):
self.setResult(StartJobResult.ObjectSettingError)
return
with self._scene.getSceneLock():
# Remove old layer data.
for node in DepthFirstIterator(self._scene.getRoot()):
if node.callDecoration("getLayerData") and node.callDecoration("getBuildPlateNumber") == self._build_plate_number:
node.getParent().removeChild(node)
break
# Get the objects in their groups to print.
object_groups = []
if stack.getProperty("print_sequence", "value") == "one_at_a_time":
for node in OneAtATimeIterator(self._scene.getRoot()):
temp_list = []
# Node can't be printed, so don't bother sending it.
if getattr(node, "_outside_buildarea", False):
continue
# Filter on current build plate
build_plate_number = node.callDecoration("getBuildPlateNumber")
if build_plate_number is not None and build_plate_number != self._build_plate_number:
continue
children = node.getAllChildren()
children.append(node)
for child_node in children:
if type(child_node) is CuraSceneNode and child_node.getMeshData() and child_node.getMeshData().getVertices() is not None:
temp_list.append(child_node)
if temp_list:
object_groups.append(temp_list)
Job.yieldThread()
if len(object_groups) == 0:
Logger.log("w", "No objects suitable for one at a time found, or no correct order found")
else:
temp_list = []
has_printing_mesh = False
for node in DepthFirstIterator(self._scene.getRoot()):
if node.callDecoration("isSliceable") and type(node) is CuraSceneNode and node.getMeshData() and node.getMeshData().getVertices() is not None:
per_object_stack = node.callDecoration("getStack")
is_non_printing_mesh = False
if per_object_stack:
is_non_printing_mesh = any(per_object_stack.getProperty(key, "value") for key in NON_PRINTING_MESH_SETTINGS)
if (node.callDecoration("getBuildPlateNumber") == self._build_plate_number):
if not getattr(node, "_outside_buildarea", False) or is_non_printing_mesh:
temp_list.append(node)
if not is_non_printing_mesh:
has_printing_mesh = True
Job.yieldThread()
#If the list doesn't have any model with suitable settings then clean the list
# otherwise CuraEngine will crash
if not has_printing_mesh:
temp_list.clear()
if temp_list:
object_groups.append(temp_list)
# There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
# able to find a possible sequence or because there are no objects on the build plate (or they are outside
# the build volume)
if not object_groups:
self.setResult(StartJobResult.NothingToSlice)
return
self._buildGlobalSettingsMessage(stack)
self._buildGlobalInheritsStackMessage(stack)
# Build messages for extruder stacks
for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
print_mode = Application.getInstance().getGlobalContainerStack().getProperty("print_mode", "value")
if print_mode == "regular":
for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
self._buildExtruderMessage(extruder_stack)
else:
main_extruder_stack = ExtruderManager.getInstance().getActiveExtruderStack()
for extruder_stack in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
self._buildExtruderMessage(main_extruder_stack, int(extruder_stack.getMetaDataEntry("position")))
for group in object_groups:
group_message = self._slice_message.addRepeatedMessage("object_lists")
if group[0].getParent().callDecoration("isGroup"):
self._handlePerObjectSettings(group[0].getParent(), group_message)
for object in group:
mesh_data = object.getMeshData()
rot_scale = object.getWorldTransformation().getTransposed().getData()[0:3, 0:3]
translate = object.getWorldTransformation().getData()[:3, 3]
# This effectively performs a limited form of MeshData.getTransformed that ignores normals.
verts = mesh_data.getVertices()
verts = verts.dot(rot_scale)
verts += translate
# Convert from Y up axes to Z up axes. Equals a 90 degree rotation.
verts[:, [1, 2]] = verts[:, [2, 1]]
verts[:, 1] *= -1
obj = group_message.addRepeatedMessage("objects")
obj.id = id(object)
indices = mesh_data.getIndices()
if indices is not None:
flat_verts = numpy.take(verts, indices.flatten(), axis=0)
else:
flat_verts = numpy.array(verts)
obj.vertices = flat_verts
self._handlePerObjectSettings(object, obj)
Job.yieldThread()
self.setResult(StartJobResult.Finished)
