使用BRepBuilderAPI_MakeWire类创建连线,多于四条边时,程序示例
时间: 2024-06-08 16:10:29 浏览: 6
下面是一个使用BRepBuilderAPI_MakeWire类创建五边形的示例程序:
```cpp
#include <iostream>
#include <TopoDS.hxx>
#include <BRepBuilderAPI_MakeVertex.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepPrimAPI_MakePrism.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <StlAPI_Writer.hxx>
int main()
{
// 创建五个顶点
TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(gp_Pnt(0, 0, 0));
TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(gp_Pnt(1, 0, 0));
TopoDS_Vertex v3 = BRepBuilderAPI_MakeVertex(gp_Pnt(1, 1, 0));
TopoDS_Vertex v4 = BRepBuilderAPI_MakeVertex(gp_Pnt(0.5, 1.5, 0));
TopoDS_Vertex v5 = BRepBuilderAPI_MakeVertex(gp_Pnt(0, 1, 0));
// 创建五条边
TopoDS_Edge e1 = BRepBuilderAPI_MakeEdge(v1, v2);
TopoDS_Edge e2 = BRepBuilderAPI_MakeEdge(v2, v3);
TopoDS_Edge e3 = BRepBuilderAPI_MakeEdge(v3, v4);
TopoDS_Edge e4 = BRepBuilderAPI_MakeEdge(v4, v5);
TopoDS_Edge e5 = BRepBuilderAPI_MakeEdge(v5, v1);
// 创建 Wire
BRepBuilderAPI_MakeWire wireMaker;
wireMaker.Add(e1);
wireMaker.Add(e2);
wireMaker.Add(e3);
wireMaker.Add(e4);
wireMaker.Add(e5);
TopoDS_Wire wire = wireMaker.Wire();
// 创建面
BRepBuilderAPI_MakeFace faceMaker(wire);
// 创建立体
BRepPrimAPI_MakePrism prismMaker(faceMaker.Face(), gp_Vec(0, 0, 1));
TopoDS_Solid solid = prismMaker.Solid();
// 输出 STL 文件
StlAPI_Writer stlWriter;
stlWriter.Write(solid, "five_edges.stl");
// 显示网格
BRepMesh_IncrementalMesh mesh(solid, 0.1);
mesh.Perform();
return 0;
}
```
这个程序创建了五个顶点,五条边和一个 Wire,然后用 Wire 创建了一个面,用面创建了一个立方体。最后将立方体输出为 STL 文件,并显示网格。
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