[vtkusers] vtkTriangleStrip and empty vtkSTLWriter output

[Cory Quammen]

Hi folks,

Following up on this now almost 2-year-old thread, I have a merge
request in VTK that adds on the fly triangulation of arbitrary
polygons into triangles in vtkSTLWriter.
https://gitlab.kitware.com/vtk/vtk/merge_requests/3260

I welcome your reviews.

Thanks!
Cory

On Wed, Oct 21, 2015 at 12:47 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> I believe that PLY  and VTK can handle non-triangles.
>
>
> On Wed, Oct 21, 2015 at 12:13 PM, Sean McBride <sean at rogue-research.com> wrote:
>> On Thu, 15 Oct 2015 13:17:42 -0400, Bill Lorensen said:
>>
>>>I looked at the STLWriter code:
>>>
>>>1) It reports an error if a polygon is not a triangle.
>>>2) It reports nothing if there are triangle strips.
>>>
>>>At a minimum I think it should handle triangle strips. No need to run
>>>triangle filter, I'll decompose the strips on the fly.
>>
>> Does this cause any inconsistency wrt other similar writers?  For example, I just looked at our exporter code and it basically does:
>>
>> - create vtkTriangleFilter
>> - switch on file type (ply, stl, vtk)
>> - create vtkPLYWriter/vtkSTLWriter/vtkPolyDataWriter
>>
>> I imagine others have similar code.  I admittedly didn't check, but it would be nice if I could remove this vtkTriangleFilter for all cases, and not need it for some but not others...
>>
>> Cheers,
>>
>> --
>> ____________________________________________________________
>> Sean McBride, B. Eng                 sean at rogue-research.com
>> Rogue Research                        www.rogue-research.com
>> Mac Software Developer              Montréal, Québec, Canada
>>
>>
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.