CGAL生成简单形状

三角形
四边形
立方体
六面体
棱柱
锥体
二十面体
网格
cpp 复制代码
	Polyhedron _mesh;

	/**************三角形************/
	CGAL::make_triangle(K::Point_3(100, 0, 0), K::Point_3(0, 100, 0), K::Point_3(0, 0, 0), _mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/triangle.stl", _mesh);
	_mesh.clear();

	/**************四边形************/
	CGAL::make_quad(K::Point_3(0, 0, 0), K::Point_3(100, 0, 0), K::Point_3(100, 100, 0), K::Point_3(0, 100, 0), _mesh);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/quad.stl", _mesh);	
	_mesh.clear();

	/**************立方体************/
	K::Iso_cuboid_3 cubte(K::Point_3(0, 0, 0), K::Point_3(100, 100, 100));
	CGAL::make_hexahedron(cubte, _mesh);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/cubte.stl", _mesh);	
	_mesh.clear();

	/**************六面体（下面的点顺时针，上面的点逆时针，与下面的一一对应）************/
	CGAL::make_hexahedron(
		K::Point_3(0, 0, 0), K::Point_3(100, 0, 0), K::Point_3(120, 120, 0), K::Point_3(0, 90, 0),
		K::Point_3(0, 0, 100), K::Point_3(110, 0,100), K::Point_3(100, 100, 130), K::Point_3(0, 100, 100),
		_mesh);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/hexahedron.stl", _mesh);
	_mesh.clear();

	/**************正棱柱************/
	CGAL::make_regular_prism(36, _mesh, K::Point_3(0, 0, 0),100, 20);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/regular_prism.stl", _mesh);
	_mesh.clear();

	/**************锥体（金字塔）************/
	CGAL::make_pyramid(36, _mesh, K::Point_3(0, 0, 0),100, 20);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/pyramid.stl", _mesh);
	_mesh.clear();

	/**************二十面体************/
	CGAL::make_icosahedron(_mesh, K::Point_3(0, 0, 0),5);
	CGAL::Polygon_mesh_processing::triangulate_faces(_mesh);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/icosahedron.stl", _mesh);
	_mesh.clear();

	/**************网格************/
	CGAL::make_grid(10, 20, _mesh, true);
	CGAL::IO::write_polygon_mesh("F:/WORK/STL/grid.stl", _mesh);