OCC 创建点线面体

news2024/9/21 16:35:20

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 actor
	actor->SetMapper(mapper.GetPointer()); //将vtk数据交给actor
	render->AddActor(actor.GetPointer()); //在渲染器中加入vtk actor

	iren->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 endregion

	
	VTKRenderWindow(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 endregion

	
	VTKRenderWindow(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 endregion

	
	VTKRenderWindow(cylinder);

}