Python SceneNode.getMeshData方法代码示例

# 需要导入模块: from UM.Scene.SceneNode import SceneNode [as 别名]
# 或者: from UM.Scene.SceneNode.SceneNode import getMeshData [as 别名]
    def _onSceneChanged(self, source: SceneNode) -> None:
        if not isinstance(source, SceneNode):
            return

        # This case checks if the source node is a node that contains GCode. In this case the
        # current layer data is removed so the previous data is not rendered - CURA-4821
        if source.callDecoration("isBlockSlicing") and source.callDecoration("getLayerData"):
            self._stored_optimized_layer_data = {}

        build_plate_changed = set()
        source_build_plate_number = source.callDecoration("getBuildPlateNumber")
        if source == self._scene.getRoot():
            # we got the root node
            num_objects = self._numObjectsPerBuildPlate()
            for build_plate_number in list(self._last_num_objects.keys()) + list(num_objects.keys()):
                if build_plate_number not in self._last_num_objects or num_objects[build_plate_number] != self._last_num_objects[build_plate_number]:
                    self._last_num_objects[build_plate_number] = num_objects[build_plate_number]
                    build_plate_changed.add(build_plate_number)
        else:
            # we got a single scenenode
            if not source.callDecoration("isGroup"):
                mesh_data = source.getMeshData()
                if mesh_data is None or mesh_data.getVertices() is None:
                    return

            # There are some SceneNodes that do not have any build plate associated, then do not add to the list.
            if source_build_plate_number is not None:
                build_plate_changed.add(source_build_plate_number)

        if not build_plate_changed:
            return

        if self._tool_active:
            # do it later, each source only has to be done once
            if source not in self._postponed_scene_change_sources:
                self._postponed_scene_change_sources.append(source)
            return

        self.stopSlicing()
        for build_plate_number in build_plate_changed:
            if build_plate_number not in self._build_plates_to_be_sliced:
                self._build_plates_to_be_sliced.append(build_plate_number)
            self.printDurationMessage.emit(source_build_plate_number, {}, [])
        self.processingProgress.emit(0.0)
        self.setState(BackendState.NotStarted)
        # if not self._use_timer:
            # With manually having to slice, we want to clear the old invalid layer data.
        self._clearLayerData(build_plate_changed)

        self._invokeSlice()

# 需要导入模块: from UM.Scene.SceneNode import SceneNode [as 别名]
# 或者: from UM.Scene.SceneNode.SceneNode import getMeshData [as 别名]
    def _convertSavitarNodeToUMNode(self, savitar_node):
        um_node = SceneNode()
        transformation = self._createMatrixFromTransformationString(savitar_node.getTransformation())
        um_node.setTransformation(transformation)
        mesh_builder = MeshBuilder()

        data = numpy.fromstring(savitar_node.getMeshData().getFlatVerticesAsBytes(), dtype=numpy.float32)

        vertices = numpy.resize(data, (int(data.size / 3), 3))
        mesh_builder.setVertices(vertices)
        mesh_builder.calculateNormals(fast=True)
        mesh_data = mesh_builder.build()

        if len(mesh_data.getVertices()):
            um_node.setMeshData(mesh_data)

        for child in savitar_node.getChildren():
            child_node = self._convertSavitarNodeToUMNode(child)
            if child_node:
                um_node.addChild(child_node)

        if um_node.getMeshData() is None and len(um_node.getChildren()) == 0:
            return None

        settings = savitar_node.getSettings()

        # Add the setting override decorator, so we can add settings to this node.
        if settings:
            um_node.addDecorator(SettingOverrideDecorator())

            global_container_stack = Application.getInstance().getGlobalContainerStack()
            # Ensure the correct next container for the SettingOverride decorator is set.
            if global_container_stack:
                multi_extrusion = global_container_stack.getProperty("machine_extruder_count", "value") > 1

                # Ensure that all extruder data is reset
                if not multi_extrusion:
                    default_stack_id = global_container_stack.getId()
                else:
                    default_stack = ExtruderManager.getInstance().getExtruderStack(0)
                    if default_stack:
                        default_stack_id = default_stack.getId()
                    else:
                        default_stack_id = global_container_stack.getId()
                um_node.callDecoration("setActiveExtruder", default_stack_id)

                # Get the definition & set it
                definition = QualityManager.getInstance().getParentMachineDefinition(global_container_stack.getBottom())
                um_node.callDecoration("getStack").getTop().setDefinition(definition)

            setting_container = um_node.callDecoration("getStack").getTop()

            for key in settings:
                setting_value = settings[key]

                # Extruder_nr is a special case.
                if key == "extruder_nr":
                    extruder_stack = ExtruderManager.getInstance().getExtruderStack(int(setting_value))
                    if extruder_stack:
                        um_node.callDecoration("setActiveExtruder", extruder_stack.getId())
                    else:
                        Logger.log("w", "Unable to find extruder in position %s", setting_value)
                    continue
                setting_container.setProperty(key,"value", setting_value)

        if len(um_node.getChildren()) > 0:
            group_decorator = GroupDecorator()
            um_node.addDecorator(group_decorator)
        um_node.setSelectable(True)
        if um_node.getMeshData():
            # Assuming that all nodes with mesh data are printable objects
            # affects (auto) slicing
            sliceable_decorator = SliceableObjectDecorator()
            um_node.addDecorator(sliceable_decorator)
        return um_node