[vtkusers] vtkDelaunay2D too slow

[Schober Beatrix [STEMMER IMAGING GmbH]]

Thank you very much for the hint. I tried ExtractSurface, but it does not work at all with x,y,z data, but works find with ply data (as in the example), but vtkDelaunay2D is also working smooth with ply data. Actually vtkExtractSurface computes, but I do not get any visible output. Computation takes even longer than with Delaunay2D. Any other hints for optimization of speed?

Thank you very much in advance!


Beatrix Schober
Image Acquisition Development

STEMMER IMAGING | Telefon: +49 89 80902-750
b.schober at stemmer-imaging.de<mailto:b.schober at stemmer-imaging.de> | www.stemmer-imaging.de<http://www.stemmer-imaging.de>

[cid:stemmer-imaging-logo_a2683554-0e33-44e9-800c-5f58a623f38a.gif]<http://www.stemmer-imaging.de/>
        STEMMER IMAGING GmbH | Gutenbergstr. 9-13 | 82178 Puchheim, Deutschland
Registergericht München HR B 82026 | Geschäftsführer: Wilhelm Stemmer, Christof Zollitsch

Von: Bill Lorensen [mailto:bill.lorensen at gmail.com]
Gesendet: Freitag, 31. März 2017 15:53
An: Schober Beatrix [STEMMER IMAGING GmbH] <b.schober at stemmer-imaging.de>
Cc: VTK Users <vtkusers at vtk.org>
Betreff: Re: [vtkusers] vtkDelaunay2D too slow

Vtk7.1 has some new point cloud filters. For Example See http://www.vtk.org/Wiki/VTK/Examples/Cxx/Points/ExtractSurface

On Mar 31, 2017 7:15 AM, "Schober Beatrix [STEMMER IMAGING GmbH]" <b.schober at stemmer-imaging.de<mailto:b.schober at stemmer-imaging.de>> wrote:
Hi all,

I have a laser point cloud  (txt file with xyz values) of which I generate a vtkPolyData with points. I am running Delaunay2D on it to get a surface.

For 360.000 points vtkDelaunay2D takes around 2 minutes. As this number of points is a small point cloud, this is too long for a customer application.

Any hints, how to increase computation speed?

Thank you very much in advance!

Bea

Beatrix Schober
Image Acquisition Development

STEMMER IMAGING | Telefon: +49 89 80902-750<tel:+49%2089%2080902750>
b.schober at stemmer-imaging.de<mailto:b.schober at stemmer-imaging.de> | www.stemmer-imaging.de<http://www.stemmer-imaging.de>

[cid:image001.gif at 01D2AD2C.27885CA0]<http://www.stemmer-imaging.de/>

STEMMER IMAGING GmbH | Gutenbergstr. 9-13 | 82178 Puchheim, Deutschland
Registergericht München HR B 82026 | Geschäftsführer: Wilhelm Stemmer, Christof Zollitsch



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