OCC 创建点线面体

一、利用封装已有算法实现

1、盒子建模算法封装

2、可视化

二、利用OCC 点线面实现

1、实现过程

2、实现一个面

3、拉伸面生成体

4、旋转面生成体

三、总结

一、利用封装已有算法实现

1、盒子建模算法封装

BRepPrimAPI_MakeBox box(2, 2, 2);

2、可视化

void VTKRenderWindow(const TopoDS_Shape& shape)
{vtkNew<vtkRenderWindow> renderWindow; //创建一个vtk窗口vtkNew<vtkRenderer> render; //创建一个vtk渲染器renderWindow->AddRenderer(render.GetPointer()); //在窗口中加入渲染器vtkNew<vtkRenderWindowInteractor> iren; //创建一个vtk交互器vtkNew<vtkInteractorStyleTrackballCamera> istyle; //创建vtk相机交互器样式iren->SetRenderWindow(renderWindow.GetPointer()); //设置渲染窗口iren->SetInteractorStyle(istyle.GetPointer()); //设置交互器样式vtkNew<IVtkTools_ShapeDataSource> occSource; //创建一个可以被VTK使用的OCC数据源occSource->SetShape(new IVtkOCC_Shape(shape)); //将shape添加到数据源中vtkNew<vtkPolyDataMapper> mapper; //创建一个VTK数据类型mapper->SetInputConnection(occSource->GetOutputPort()); //创建一个管道，将occ数据导入到VTK数据中vtkNew<vtkActor> actor; //创建一个vtk actoractor->SetMapper(mapper.GetPointer()); //将vtk数据交给actorrender->AddActor(actor.GetPointer()); //在渲染器中加入vtk actoriren->Initialize(); //初始化交互器iren->Start(); //开始运行交互器
}

二、利用OCC 点线面实现

1、实现过程

创建四个顶点，定义一个矩形的四个角。
使用这些顶点创建四条边。
将这些边连接成一个封闭的线框 (wire)。
使用这个线框创建一个面 (face)。
定义一个拉伸方向和距离，这里是沿 Z 轴方向拉伸 10 个单位长度。
使用 BRepPrimAPI_MakePrism 类将这个面拉伸成一个体（solid）

2、实现一个面

#include "BRepBuilderAPI_MakeVertex.hxx"
#include "BRepBuilderAPI_MakeEdge.hxx"
#include "BRepBuilderAPI_MakeWire.hxx"
#include "BRepBuilderAPI_MakeFace.hxx"
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include "Standard_Real.hxx"
int main()
{//创建面
#pragma region MyRegion// 创建四个顶点gp_Pnt p1(0, 0, 0);gp_Pnt p2(10, 0, 0);gp_Pnt p3(10, 10, 0);gp_Pnt p4(0, 10, 0);// 使用顶点创建边,注意线框闭合TopoDS_Edge edge1 = BRepBuilderAPI_MakeEdge(p1, p2);TopoDS_Edge edge2 = BRepBuilderAPI_MakeEdge(p2, p3);TopoDS_Edge edge3 = BRepBuilderAPI_MakeEdge(p3, p4);TopoDS_Edge edge4 = BRepBuilderAPI_MakeEdge(p4, p1);// 将边连接成一个线框BRepBuilderAPI_MakeWire wireBuilder;wireBuilder.Add(edge1);wireBuilder.Add(edge2);wireBuilder.Add(edge3);wireBuilder.Add(edge4);TopoDS_Wire wire = wireBuilder.Wire();// 使用线框创建面BRepBuilderAPI_MakeFace faceBuilder(wire);TopoDS_Face face = faceBuilder.Face();
#pragma endregionVTKRenderWindow(face);}

3、拉伸面生成体

#include "BRepBuilderAPI_MakeVertex.hxx"
#include "BRepBuilderAPI_MakeEdge.hxx"
#include "BRepBuilderAPI_MakeWire.hxx"
#include "BRepBuilderAPI_MakeFace.hxx"
#include "BRepPrimAPI_MakePrism.hxx"
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include "Standard_Real.hxx"
int main()
{//创建面
#pragma region MyRegion// 创建四个顶点gp_Pnt p1(0, 0, 0);gp_Pnt p2(10, 0, 0);gp_Pnt p3(10, 10, 0);gp_Pnt p4(0, 10, 0);// 使用顶点创建边,注意线框闭合TopoDS_Edge edge1 = BRepBuilderAPI_MakeEdge(p1, p2);TopoDS_Edge edge2 = BRepBuilderAPI_MakeEdge(p2, p3);TopoDS_Edge edge3 = BRepBuilderAPI_MakeEdge(p3, p4);TopoDS_Edge edge4 = BRepBuilderAPI_MakeEdge(p4, p1);// 将边连接成一个线框BRepBuilderAPI_MakeWire wireBuilder;wireBuilder.Add(edge1);wireBuilder.Add(edge2);wireBuilder.Add(edge3);wireBuilder.Add(edge4);TopoDS_Wire wire = wireBuilder.Wire();// 使用线框创建面BRepBuilderAPI_MakeFace faceBuilder(wire);TopoDS_Face face = faceBuilder.Face();// 定义拉伸方向和距离gp_Vec prismVec(0, 0, 10);// 拉伸面形成体BRepPrimAPI_MakePrism prismMaker(face, prismVec);TopoDS_Shape solid = prismMaker;
#pragma endregionVTKRenderWindow(solid);}

4、旋转面生成体

#include "BRepBuilderAPI_MakeVertex.hxx"
#include "BRepBuilderAPI_MakeEdge.hxx"
#include "BRepBuilderAPI_MakeWire.hxx"
#include "BRepBuilderAPI_MakeFace.hxx"
#include "BRepPrimAPI_MakePrism.hxx"
#include "BRepPrimAPI_MakeRevol.hxx"
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include "Standard_Real.hxx"
int main()
{//创建面
#pragma region MyRegion// 创建四个顶点gp_Pnt p1(0, 0, 0);gp_Pnt p2(10, 0, 0);gp_Pnt p3(10, 10, 0);gp_Pnt p4(0, 10, 0);// 使用顶点创建边,注意线框闭合TopoDS_Edge edge1 = BRepBuilderAPI_MakeEdge(p1, p2);TopoDS_Edge edge2 = BRepBuilderAPI_MakeEdge(p2, p3);TopoDS_Edge edge3 = BRepBuilderAPI_MakeEdge(p3, p4);TopoDS_Edge edge4 = BRepBuilderAPI_MakeEdge(p4, p1);// 将边连接成一个线框BRepBuilderAPI_MakeWire wireBuilder;wireBuilder.Add(edge1);wireBuilder.Add(edge2);wireBuilder.Add(edge3);wireBuilder.Add(edge4);TopoDS_Wire wire = wireBuilder.Wire();// 使用线框创建面BRepBuilderAPI_MakeFace faceBuilder(wire);TopoDS_Face face = faceBuilder.Face();// 定义拉伸方向和距离gp_Vec prismVec(0, 0, 10);// 拉伸面形成体/*BRepPrimAPI_MakePrism prismMaker(face, prismVec);TopoDS_Shape solid = prismMaker;*/// 定义旋转轴gp_Ax1 axis(gp_Pnt(0, 0, 0), gp_Dir(0, 1, 0));// 旋转面形成圆柱BRepPrimAPI_MakeRevol revolMaker(face, axis);TopoDS_Shape cylinder = revolMaker;
#pragma endregionVTKRenderWindow(cylinder);}