Python MeshBuilder.setFileName方法代码示例

# 需要导入模块: from UM.Mesh.MeshBuilder import MeshBuilder [as 别名]
# 或者: from UM.Mesh.MeshBuilder.MeshBuilder import setFileName [as 别名]
    def read(self, file_name):
        try:
            self.defs = {}
            self.shapes = []
            
            tree = ET.parse(file_name)
            xml_root = tree.getroot()
            
            if xml_root.tag != "X3D":
                return None

            scale = 1000 # Default X3D unit it one meter, while Cura's is one millimeters            
            if xml_root[0].tag == "head":
                for head_node in xml_root[0]:
                    if head_node.tag == "unit" and head_node.attrib.get("category") == "length":
                        scale *= float(head_node.attrib["conversionFactor"])
                        break 
                xml_scene = xml_root[1]
            else:
                xml_scene = xml_root[0]
                
            if xml_scene.tag != "Scene":
                return None
            
            self.transform = Matrix()
            self.transform.setByScaleFactor(scale)
            self.index_base = 0
            
            # Traverse the scene tree, populate the shapes list
            self.processChildNodes(xml_scene)
            
            if self.shapes:
                builder = MeshBuilder()
                builder.setVertices(numpy.concatenate([shape.verts for shape in self.shapes]))
                builder.setIndices(numpy.concatenate([shape.faces for shape in self.shapes]))
                builder.calculateNormals()
                builder.setFileName(file_name)
                mesh_data = builder.build()

                # Manually try and get the extents of the mesh_data. This should prevent nasty NaN issues from
                # leaving the reader.
                mesh_data.getExtents()

                node = SceneNode()
                node.setMeshData(mesh_data)
                node.setSelectable(True)
                node.setName(file_name)

            else:
                return None
            
        except Exception:
            Logger.logException("e", "Exception in X3D reader")
            return None

        return node

# 需要导入模块: from UM.Mesh.MeshBuilder import MeshBuilder [as 别名]
# 或者: from UM.Mesh.MeshBuilder.MeshBuilder import setFileName [as 别名]
    def read(self, file_name):
        scene_node = None

        extension = os.path.splitext(file_name)[1]
        if extension.lower() in self._supported_extensions:
            vertex_list = []
            normal_list = []
            uv_list = []
            face_list = []
            scene_node = SceneNode()

            mesh_builder = MeshBuilder()
            mesh_builder.setFileName(file_name)
            f = open(file_name, "rt")
            for line in f:
                parts = line.split()
                if len(parts) < 1:
                    continue
                if parts[0] == "v":
                    vertex_list.append([float(parts[1]), float(parts[3]), -float(parts[2])])
                if parts[0] == "vn":
                    normal_list.append([float(parts[1]), float(parts[3]), -float(parts[2])])
                if parts[0] == "vt":
                    uv_list.append([float(parts[1]), float(parts[2])])
                if parts[0] == "f":
                    parts = [i for i in map(lambda p: p.split("/"), parts)]
                    for idx in range(1, len(parts)-2):
                        data = [int(parts[1][0]), int(parts[idx+1][0]), int(parts[idx+2][0])]
                        if len(parts[1]) > 2:
                            data += [int(parts[1][2]), int(parts[idx+1][2]), int(parts[idx+2][2])]

                            if parts[1][1] and parts[idx+1][1] and parts[idx+2][1]:
                                data += [int(parts[1][1]), int(parts[idx+1][1]), int(parts[idx+2][1])]
                        face_list.append(data)
                Job.yieldThread()
            f.close()

            mesh_builder.reserveVertexCount(3 * len(face_list))
            num_vertices = len(vertex_list)
            num_normals = len(normal_list)

            for face in face_list:
                # Substract 1 from index, as obj starts counting at 1 instead of 0
                i = face[0] - 1
                j = face[1] - 1
                k = face[2] - 1

                if len(face) > 3:
                    ni = face[3] - 1
                    nj = face[4] - 1
                    nk = face[5] - 1
                else:
                    ni = -1
                    nj = -1
                    nk = -1

                if len(face) > 6:
                    ui = face[6] - 1
                    uj = face[7] - 1
                    uk = face[8] - 1
                else:
                    ui = -1
                    uj = -1
                    uk = -1

                #TODO: improve this handling, this can cause weird errors (negative indexes are relative indexes, and are not properly handled)
                if i < 0 or i >= num_vertices:
                    i = 0
                if j < 0 or j >= num_vertices:
                    j = 0
                if k < 0 or k >= num_vertices:
                    k = 0
                if ni != -1 and nj != -1 and nk != -1:
                    mesh_builder.addFaceWithNormals(vertex_list[i][0], vertex_list[i][1], vertex_list[i][2], normal_list[ni][0], normal_list[ni][1], normal_list[ni][2], vertex_list[j][0], vertex_list[j][1], vertex_list[j][2], normal_list[nj][0], normal_list[nj][1], normal_list[nj][2], vertex_list[k][0], vertex_list[k][1], vertex_list[k][2],normal_list[nk][0], normal_list[nk][1], normal_list[nk][2])
                else:
                    mesh_builder.addFaceByPoints(vertex_list[i][0], vertex_list[i][1], vertex_list[i][2], vertex_list[j][0], vertex_list[j][1], vertex_list[j][2], vertex_list[k][0], vertex_list[k][1], vertex_list[k][2])

                if ui != -1:
                    mesh_builder.setVertexUVCoordinates(mesh_builder.getVertexCount() - 3, uv_list[ui][0], uv_list[ui][1])

                if uj != -1:
                    mesh_builder.setVertexUVCoordinates(mesh_builder.getVertexCount() - 2, uv_list[uj][0], uv_list[uj][1])

                if uk != -1:
                    mesh_builder.setVertexUVCoordinates(mesh_builder.getVertexCount() - 1, uv_list[uk][0], uv_list[uk][1])

                Job.yieldThread()
            if not mesh_builder.hasNormals():
                mesh_builder.calculateNormals(fast = True)
            scene_node.setMeshData(mesh_builder.build())

        return scene_node

# 需要导入模块: from UM.Mesh.MeshBuilder import MeshBuilder [as 别名]
# 或者: from UM.Mesh.MeshBuilder.MeshBuilder import setFileName [as 别名]
    def _createNodeFromObject(self, object, name = ""):
        node = SceneNode()
        node.setName(name)
        mesh_builder = MeshBuilder()
        vertex_list = []

        components = object.find(".//3mf:components", self._namespaces)
        if components:
            for component in components:
                id = component.get("objectid")
                new_object = self._root.find("./3mf:resources/3mf:object[@id='{0}']".format(id), self._namespaces)
                new_node = self._createNodeFromObject(new_object, self._base_name + "_" + str(id))
                node.addChild(new_node)
                transform = component.get("transform")
                if transform is not None:
                    new_node.setTransformation(self._createMatrixFromTransformationString(transform))

        # for vertex in entry.mesh.vertices.vertex:
        for vertex in object.findall(".//3mf:vertex", self._namespaces):
            vertex_list.append([vertex.get("x"), vertex.get("y"), vertex.get("z")])
            Job.yieldThread()

        xml_settings = list(object.findall(".//cura:setting", self._namespaces))

        # Add the setting override decorator, so we can add settings to this node.
        if xml_settings:
            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()
                node.callDecoration("setActiveExtruder", default_stack_id)

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

            setting_container = node.callDecoration("getStack").getTop()
            for setting in xml_settings:
                setting_key = setting.get("key")
                setting_value = setting.text

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

        if len(node.getChildren()) > 0:
            group_decorator = GroupDecorator()
            node.addDecorator(group_decorator)

        triangles = object.findall(".//3mf:triangle", self._namespaces)
        mesh_builder.reserveFaceCount(len(triangles))

        for triangle in triangles:
            v1 = int(triangle.get("v1"))
            v2 = int(triangle.get("v2"))
            v3 = int(triangle.get("v3"))

            mesh_builder.addFaceByPoints(vertex_list[v1][0], vertex_list[v1][1], vertex_list[v1][2],
                                         vertex_list[v2][0], vertex_list[v2][1], vertex_list[v2][2],
                                         vertex_list[v3][0], vertex_list[v3][1], vertex_list[v3][2])

            Job.yieldThread()

        # TODO: We currently do not check for normals and simply recalculate them.
        mesh_builder.calculateNormals()
        mesh_builder.setFileName(name)
        mesh_data = mesh_builder.build()

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

        node.setSelectable(True)
        return node

# 需要导入模块: from UM.Mesh.MeshBuilder import MeshBuilder [as 别名]
# 或者: from UM.Mesh.MeshBuilder.MeshBuilder import setFileName [as 别名]
    def read(self, file_name):
        result = SceneNode()
        # The base object of 3mf is a zipped archive.
        archive = zipfile.ZipFile(file_name, "r")
        try:
            root = ET.parse(archive.open("3D/3dmodel.model"))

            # There can be multiple objects, try to load all of them.
            objects = root.findall("./3mf:resources/3mf:object", self._namespaces)
            if len(objects) == 0:
                Logger.log("w", "No objects found in 3MF file %s, either the file is corrupt or you are using an outdated format", file_name)
                return None

            for entry in objects:
                mesh_builder = MeshBuilder()
                node = SceneNode()
                vertex_list = []
                #for vertex in entry.mesh.vertices.vertex:
                for vertex in entry.findall(".//3mf:vertex", self._namespaces):
                    vertex_list.append([vertex.get("x"), vertex.get("y"), vertex.get("z")])
                    Job.yieldThread()

                triangles = entry.findall(".//3mf:triangle", self._namespaces)
                mesh_builder.reserveFaceCount(len(triangles))

                for triangle in triangles:
                    v1 = int(triangle.get("v1"))
                    v2 = int(triangle.get("v2"))
                    v3 = int(triangle.get("v3"))

                    mesh_builder.addFaceByPoints(vertex_list[v1][0], vertex_list[v1][1], vertex_list[v1][2],
                                                 vertex_list[v2][0], vertex_list[v2][1], vertex_list[v2][2],
                                                 vertex_list[v3][0], vertex_list[v3][1], vertex_list[v3][2])

                    Job.yieldThread()

                # Rotate the model; We use a different coordinate frame.
                rotation = Matrix()
                rotation.setByRotationAxis(-0.5 * math.pi, Vector(1, 0, 0))

                # TODO: We currently do not check for normals and simply recalculate them.
                mesh_builder.calculateNormals()
                mesh_builder.setFileName(file_name)
                node.setMeshData(mesh_builder.build().getTransformed(rotation))
                node.setSelectable(True)

                transformations = root.findall("./3mf:build/3mf:item[@objectid='{0}']".format(entry.get("id")), self._namespaces)
                transformation = transformations[0] if transformations else None
                if transformation is not None and transformation.get("transform"):
                    splitted_transformation = transformation.get("transform").split()
                    ## Transformation is saved as:
                    ## M00 M01 M02 0.0
                    ## M10 M11 M12 0.0
                    ## M20 M21 M22 0.0
                    ## M30 M31 M32 1.0
                    ## We switch the row & cols as that is how everyone else uses matrices!
                    temp_mat = Matrix()
                    # Rotation & Scale
                    temp_mat._data[0,0] = splitted_transformation[0]
                    temp_mat._data[1,0] = splitted_transformation[1]
                    temp_mat._data[2,0] = splitted_transformation[2]
                    temp_mat._data[0,1] = splitted_transformation[3]
                    temp_mat._data[1,1] = splitted_transformation[4]
                    temp_mat._data[2,1] = splitted_transformation[5]
                    temp_mat._data[0,2] = splitted_transformation[6]
                    temp_mat._data[1,2] = splitted_transformation[7]
                    temp_mat._data[2,2] = splitted_transformation[8]

                    # Translation
                    temp_mat._data[0,3] = splitted_transformation[9]
                    temp_mat._data[1,3] = splitted_transformation[10]
                    temp_mat._data[2,3] = splitted_transformation[11]

                    node.setTransformation(temp_mat)

                result.addChild(node)

                Job.yieldThread()

            # If there is more then one object, group them.
            if len(objects) > 1:
                group_decorator = GroupDecorator()
                result.addDecorator(group_decorator)
        except Exception as e:
            Logger.log("e", "exception occured in 3mf reader: %s", e)

        return result