Fri, 05/20/2022 - 10:08
Forums:
How to project a solid outline onto a face?
I use [BRepProj_Projection] to project, but it only supports projection TopoDS_Wire.
So I took out the outer boundary of the solid, but it's not what I want.
- Finally, I got the unwanted projection results
Take a simple cylinder as an example:
-OuterBoundary i get from Cylinder is circle at both ends( CylinderOuterBoundary.jpg).
-So the result of the projection is two straight lines( ICanGetThisResult.jpg ).
-However, I hope that the projection result can reflect the whole outer contour of the cylinder（ExpectedReult.jpg）.
Please tell me what I should do.
Operating environment:
-OCC version 6.9.0
-Packaging by c#wrapper
Fri, 05/20/2022 - 10:38
Hello Wang,
I suggest you to dig into Hidden Line Removal (HLR) algorithm https://dev.opencascade.org/doc/overview/html/occt_user_guides__modeling...
It will provide you the result you expect.
Regards,
Artem
Tue, 05/24/2022 - 15:03
Thank you for your answer. I can get the result I want.
But the Result Edge seems different from the ordinary edge.
-In my next step, I will use [BRepProj_Projection] to project the edge on another Cylindrical surface.
-However, if the above results are projected onto the Cylindrical surface, it will crash.
-Is this result edge so special that it can't do Projection?
My environment is Opencascade 6.9.0
Sun, 05/29/2022 - 14:54
Hello Wang,I met the same question as you,Could you tell me how to solve it.I also want to project a solid onto a plane.