生成 cone（锥体）

简介

生成 圆锥

代码

// CreateCone.cpp: 定义控制台应用程序的入口点。
//#include <iostream>
#include <OpenMesh/Core/IO/MeshIO.hh>
#include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
#include<cmath>
#include "AddPolygon.h"
#define pi 3.1415926
using namespace std;
typedef OpenMesh::TriMesh_ArrayKernelT<> MyMesh;MyMesh* CreateCone(int edge, double height) {MyMesh * cone = new MyMesh;MyMesh::VertexHandle * bottom = AddPolygon(*cone, edge, -height / 2, false);MyMesh::VertexHandle vhandle = (*cone).add_vertex(MyMesh::Point(0, 0, height/2));for (int i = 0; i < edge; i++) {int next = (i + 1) % edge;std::vector<MyMesh::VertexHandle>face_vhandles;face_vhandles.push_back(bottom[i]);face_vhandles.push_back(bottom[next]);face_vhandles.push_back(vhandle);(*cone).add_face(face_vhandles);}return cone;
}int main()
{int edge;double height;cout << "Please input edge and height!\n";cin >> edge >> height;MyMesh *mesh = CreateCone(edge, height);try{if (!OpenMesh::IO::write_mesh((*mesh), "output3 .off")) {std::cerr << "Cannot write mesh to file ' output3 .off ' " << std::endl;return 1;}}catch (std::exception&x) {std::cerr << x.what() << std::endl;return 1;}return 0;
}