Possible bug of BRepBuilderAPI_NurbsConvert

Load attached step file. And try to convert it to BSpline surface using API BRepBuilderAPI_NurbsConvert. The conversion is successful, but the tessellation failed. And the new shape shows topology error of unorientation. My OCC is 6.5.1.
Any suggestion is welcome. Thanks in advance.


Pawel's picture

Hi Ding,

have just tested on 6.5.3 - no problem.


Cauchy Ding's picture

Hi Pawel,

Thank you for your reply. I will try it later.

Best Regards.


PG's picture

STEP file created in which s/w ? Also just curious , what benefit to the user or developer to convert it to b-spline surface ?
- PG

Cauchy Ding's picture

Hi PG,

The cylinder is created in my software using OCC6.5.1. I have designed a B-Spline surface morph and editing module. So I want to convert the cylinder to b-spline surface to do editing opeartion.