opencascade获取TopoDS_Wire的Vertex坐标的python程序

以下是一个使用OpenCascade库获取TopoDS_Wire的Vertex坐标的Python程序的示例：

import sys
from OCC.Core.TopoDS import TopoDS_Wire
from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_MakeWire, BRepBuilderAPI_MakeEdge
from OCC.Core.gp import gp_Pnt

def get_wire_vertex_coordinates(wire):
    vertex_coordinates = []

    # 遍历wire的边
    edge_iterator = wire.EdgesIterator()
    while edge_iterator.More():
        edge = edge_iterator.Value()

        # 获取edge的起始点和终点
        start_vertex = edge.StartVertex()
        end_vertex = edge.EndVertex()

        # 获取起始点和终点的坐标
        start_coordinate = start_vertex.Point().Coord()
        end_coordinate = end_vertex.Point().Coord()

        # 添加到vertex_coordinates列表中
        vertex_coordinates.append(start_coordinate)
        vertex_coordinates.append(end_coordinate)

        edge_iterator.Next()

    return vertex_coordinates

# 创建一个简单的线段
edge1 = BRepBuilderAPI_MakeEdge(gp_Pnt(0, 0, 0), gp_Pnt(1, 0, 0)).Edge()
edge2 = BRepBuilderAPI_MakeEdge(gp_Pnt(1, 0, 0), gp_Pnt(1, 1, 0)).Edge()
edge3 = BRepBuilderAPI_MakeEdge(gp_Pnt(1, 1, 0), gp_Pnt(0, 1, 0)).Edge()
edge4 = BRepBuilderAPI_MakeEdge(gp_Pnt(0, 1, 0), gp_Pnt(0, 0, 0)).Edge()

# 创建一个Wire
wire = BRepBuilderAPI_MakeWire(edge1, edge2, edge3, edge4).Wire()

# 获取Wire的Vertex坐标
vertex_coordinates = get_wire_vertex_coordinates(wire)

# 打印结果
for coordinate in vertex_coordinates:
    print(coordinate)

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。

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