OpenCascade Python: 获取TopoDS_Wire顶点坐标

以下是一个使用OpenCascade库获取TopoDS_Wire的Vertex坐标的Python程序的示例：\n\npython\nimport sys\nfrom OCC.Core.TopoDS import TopoDS_Wire\nfrom OCC.Core.BRepBuilderAPI import BRepBuilderAPI_MakeWire, BRepBuilderAPI_MakeEdge\nfrom OCC.Core.gp import gp_Pnt\n\ndef get_wire_vertex_coordinates(wire):\n vertex_coordinates = []\n\n # 遍历wire的边\n edge_iterator = wire.EdgesIterator()\n while edge_iterator.More():\n edge = edge_iterator.Value()\n\n # 获取edge的起始点和终点\n start_vertex = edge.StartVertex()\n end_vertex = edge.EndVertex()\n\n # 获取起始点和终点的坐标\n start_coordinate = start_vertex.Point().Coord()\n end_coordinate = end_vertex.Point().Coord()\n\n # 添加到vertex_coordinates列表中\n vertex_coordinates.append(start_coordinate)\n vertex_coordinates.append(end_coordinate)\n\n edge_iterator.Next()\n\n return vertex_coordinates\n\n# 创建一个简单的线段\nedge1 = BRepBuilderAPI_MakeEdge(gp_Pnt(0, 0, 0), gp_Pnt(1, 0, 0)).Edge()\nedge2 = BRepBuilderAPI_MakeEdge(gp_Pnt(1, 0, 0), gp_Pnt(1, 1, 0)).Edge()\nedge3 = BRepBuilderAPI_MakeEdge(gp_Pnt(1, 1, 0), gp_Pnt(0, 1, 0)).Edge()\nedge4 = BRepBuilderAPI_MakeEdge(gp_Pnt(0, 1, 0), gp_Pnt(0, 0, 0)).Edge()\n\n# 创建一个Wire\nwire = BRepBuilderAPI_MakeWire(edge1, edge2, edge3, edge4).Wire()\n\n# 获取Wire的Vertex坐标\nvertex_coordinates = get_wire_vertex_coordinates(wire)\n\n# 打印结果\nfor coordinate in vertex_coordinates:\n print(coordinate)\n\n\n这个程序首先创建了一个简单的线段，然后使用BRepBuilderAPI_MakeWire创建了一个Wire。接下来，使用get_wire_vertex_coordinates函数来获取Wire的Vertex坐标。最后，打印出这些坐标。\n\n请确保已经正确安装了OpenCascade库，并在运行程序之前进行了正确的库导入。