Sat, 11/22/2008 - 14:07
Forums:
Hello everybody,
I am using BRepOffsetAPI_MakeOffsetShape to Offset a given face, as follows:
BRepOffsetAPI_MakeOffsetShape MakeOffsetShape ( face, offset, tolerance, BRepOffset_Skin, Standard_False, Standard_False, GeomAbs_Intersection );
TopoDS_Shape tdsResultShape = MakeOffsetShape.Shape();
It works pretty good for most cases, however for some faces I get the following exception:
>> Geom_RectangularTrimmedSurface::V parameters out of range
Have anyone faced a similar issue before and knows the reason why it happens?
Thank you very much in advance.
Best regards,
Fernando
Thu, 12/11/2008 - 19:26
Hello,
I tried most of the available ShapeFix methods and still could not solve this issue.
Does anyone have an idea on the reasons why this exception rises?
Thanks a lot!
Best regards,
Fernando
Tue, 02/03/2009 - 16:33
Hello me,
After spending some time searching for a given Shape Healing algorithm that would fix this issue, I found out that it was happening mainly due to the input parameters of BRepOffsetAPI_MakeOffsetShape. My mistake!
I am now calling it like this:
>> BRepOffsetAPI_MakeOffsetShape myOffsetAlgo(face, offset, Precision::Confusion());
With this set of parameters, I could generate the Offset Shape, however the new geometry is not very good.
The original Shape looks like a Triangle and is composed by 1 Face with 4 Edges (1 Line and 3 B-Splines). As a Result, I get a Shape pretty similar to the original one, but a second Face is also created and at one of the Vertices the adjacent Edges are not well connected - they self-intersect and (because of this, I guess) a long circular curve is created to join their end-points, instead of simply connecting them at their common Vertex.
I coulnd't fix it with ShapeFix_Wire::FixSelfIntersection()... I'm probably doing something wrong and would be really happy with any help coming from you guys.
Thank you very much in advance!
Kind regards,
Fernando
Fri, 02/12/2010 - 15:18
Hello everybody,
I have the same problem with the offset of this particular FACE. One of the EGDEs goes to the wrong side of the shape and it creates a strange result.
I attached an image with the wrong result.
Somebody knows how to solve this problem?
Thank you,
Gabriel