OpenCascade Modeling Algorithms Boolean Operations

Modeling Algorithms Boolean Operations of Opencascade

eryar@163.com

布尔操作(Boolean Operations)是通过两个形状(S1S2)的组合来生成新的形状。布尔操作有如下几种类型: 

u 并集操作FusionGets all the points in S1 or S2

u 交集操作CommonGets all the points in S1 and S2

u 差集操作Cut S1 by S2Gets all the points in S1 and not in S2

下图所示为三种布尔操作: 

Boolean Operations

1. BRepAlgoAPI_BooleanOperation

BRepAlgoAPI_BooleanOperation是布尔操作的基类。 

2. BRepAlgoAPI_Fuse

BRepAlgoAPI_Fuse执行布尔并集操作。如下所示:

TopoDS_Shape theBox1 = BRepPrimAPI_MakeBox(50,200,70); 
TopoDS_Shape theBox2 = BRepPrimAPI_MakeBox(-30,150,70); 
TopoDS_Shape FusedShape = BRepAlgoAPI_Fuse(theBox1,theBox2); 

Fuse two boxes

3. BRepAlgoAPI_Common

BRepAlgoAPI_Common执行布尔交集操作,如下所示:

gp_Ax2 axe(gp_Pnt(10,10,10),gp_Dir(1,2,1)); 

TopoDS_Shape theBox = BRepPrimAPI_MakeBox(axe,60,80,100); 
TopoDS_Shape theWedge = BRepPrimAPI_MakeWedge(60.,100.,80.,20.); 
TopoDS_Shape theCommonSurface = BRepAlgoAPI_Common(theBox,theWedge); 

Compute the common surface

4. BRepAlgoAPI_Cut

BRepAlgoAPI_Cut执行布尔差集操作,如下所示:

TopoDS_Shape theBox = BRepPrimAPI_MakeBox(200,40,40); 
TopoDS_Shape theSphere = BRepPrimAPI_MakeSphere(gp_Pnt(100,20,20),80); 
TopoDS_Shape ShapeCut = BRepAlgoAPI_Cut(theSphere,theBox); 

 

5. BRepAlgoAPI_Section

 

Open Cascade中的布尔操作 Modeling Algorithms-Boolean Operations

© 版权声明
THE END
喜欢就支持一下吧
点赞0 分享
评论 抢沙发
头像
欢迎您留下宝贵的见解!
提交
头像

昵称

取消
昵称表情代码图片