How to create a section view?

Dmitrii Baranov's picture
Dmitrii Baranov
Sun, 06/17/2018 - 17:22
Forums: 
Modeling Data and Algorithms

How to create a section view? See the attached picture NecessaryResult.png.

My Steps (MySteps.png):
1) Create or load the basic model (TopoDS_Shape baseModel)
2) Create a section model (TopoDS_Shape sectionModel) using BRepAlgoAPI_Common or BRepAlgoAPI_Cut
3) Project the section model onto the surface using HLRBRep_Algo and HLRAlgo_Projector

All right? Or are there other ways to create view sections?

Attachments: 
Image icon NecessaryResult.png
Image icon MySteps.png
Hugues Delorme's picture
Hugues Delorme
Mon, 06/18/2018 - 13:12

Hello,

    Maybe clipping planes would be easier ?

    See V3d_View::AddClipPlane() and Graphic3d_ClipPlane.

    You can set the capping aspect also.

Dmitrii Baranov's picture
Dmitrii Baranov
Mon, 06/18/2018 - 15:31

I can use clipping plane to get a section model (see "sectionModel" on picture MySteps.png). But what to do next? Should I do a projection of the model or not? Maybe I shouldn't have to project the model onto the plane (HLRAlgo_Projector), and must switch on mode wireframe?