[vtk-developers] Class design for spline visualizations

Lin M majcjc at gmail.com
Tue Jul 21 22:01:29 EDT 2015


Hi Dr. Thompson,

Besides loading external NURBS files, what's the next thing to do? Based on
our proposal, we should work on implementing the operation algorithms now.
Where do you think I can start with?

Best,
Lin

On Wed, Jul 8, 2015 at 5:06 PM, David Thompson <david.thompson at kitware.com>
wrote:

> Hi Lin,
>
> > I read the document for BRep format and checked those files in CGM/test.
> It seems that only a small part of the test files contains bezier/b-spline
> surfaces and all these files contains quite a number of different kinds of
> shapes. I can write a class to read such file but it will only display the
> bezier/b-spline part. I'm afraid that it will just be a piece of the
> original shape which the file represents. Do you think I should do that or
> there is a better way to load external shape?
>
> I think it would be great to start with the parts of the CGM files that
> are NURBS. The remaining shapes should either be straight (lines, planes)
> or conics (for which you have written a few routines we can use to create
> patches that will represent them properly).
>
> > PS. I opened a new google doc to summarize what we have done now. I will
> update new progress to it during the development. (link)
>
> Great!
>
>         David
>
>
>
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