Hi Christophe,
thanks for your help! I have compiled gmsh from git to try it.
I am able to successfully remesh (double click on viewport -> change Global
Mesh Size Factor), then click Mesh -> 2D to remesh.
Some questions:
* How can I change the meshing algorithm?
* Is there a way to achieve a smiliar semi-automatic meshing on the STL file of
the bunny? Or is underlying parametrization you provided required?
Thanks a lot!
Florian
Am 29.05.19 um 16:07 schrieb Christophe Geuzaine:
>
> Hi Florian,
>
> This is a nice test-case for our new remeshing pipeline. It's still quite
> experimental, but you can give it a try with the latest development snapshot:
> just open the attached .msh file, which contains a mesh of the bunny as well
> as an underlying parametrization. You can remesh this file simply by
> selecting the algorithm ("Frontal-Delaunay" in the attached picture) and the
> mesh size you want (e.g. by double-clicking in the window and changing the
> global mesh size factor).
>
> Nothing about the new remeshing features is documented yet, but feel free to
> play around with it and report your findings ;-)
>
> Christophe
>
>
>
>
>
>
>
>
>
>> On 29 May 2019, at 15:25, Florian Lindner <[email protected]> wrote:
>>
>> Hello,
>>
>> I have an existing surface geometry, which is the Stanford bunny [1] as PLY
>> format.
>>
>> My goal is too evaluate a mapping algorithm on a non-trivial geometry. The
>> algorithm works only on point data, therefore I don't need an triangulation.
>>
>> From the existing surface data I want to generate sampled points of various
>> densities on the surface of the geometry and save these as a standard data
>> format (e.g. VTK).
>>
>> As I want to generate different mesh sizes, I need something like a
>> background mesh size or a characteristic length which controls the sampling
>> frequency. The exact placement of the points is not important, it should
>> "make sense", i.e. be roughly equidistant or maybe influenced by the
>> curvature.
>>
>> So far I have only Merge "bun_zipper.ply"; in my .geo file.
>>
>> I think you can feel, that I am very uncertain how to progress and I would
>> be very happy for guidance!
>>
>> Thanks!
>> Florian
>>
>>
>> [1] http://graphics.stanford.edu/pub/3Dscanrep/bunny.tar.gz
>>
>> _______________________________________________
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>
> —
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
>
>
>
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