[vtkusers] vtkVoxelContoursToSurfaceFilter - control number of triangle of the generated mesh ?

[Jothy]

I think you could reduce it by running vtkdecimatepro on the mesh.

BTW, I could not see any of your images.

Jothy

On Fri, Oct 22, 2010 at 2:09 AM, Ashika Umanga Umagiliya <
aumanga at biggjapan.com> wrote:

> Anyone ..please?
>
> On 20 October 2010 12:20, Ashika Umanga Umagiliya <aumanga at biggjapan.com>wrote:
>
>> Greetings all,
>>
>> We generate contour data using a seperate contour detecting algorithm and
>> use "vtkVoxelContoursToSurfaceFilter" to generate the mesh.
>> Source image size is around 1000x1000 pixels.
>> Please refer image at - http://oi55.tinypic.com/2e2f2xd.jpg .
>>
>> So,the maximum x,y coordinates of contour data is also in the range
>> 1000x1000.
>> As see in the image at - http://oi51.tinypic.com/4lt9c3.jpg ,
>> , every small circle is added as a "vtkPoint" when generating
>> "vtkPolyData".
>>
>> At first vtk could not generate mesh and crashed .
>> So I divide original node x,y data by 5 (scaled down by 5) before sending
>> to  "vtkPoints.SetPoint()".
>>
>> Still the generated mesh has huge number of triangles.
>> Here is the genereated mesh - http://oi51.tinypic.com/98soib.jpg
>> Wireframe of the mesh  - http://oi51.tinypic.com/r7ly10.jpg
>> Zoomed in -  http://oi53.tinypic.com/r08k07.jpg
>>
>> My question is ,is there a way to produce the optimized number of
>> triangles for the mesh ? ()
>> Our target image range is from 512x512 to 2000x2000. (that is,counter )
>> Any tips of adjusting the best triangle count depend of the image size?
>>
>> Thanks in advance,
>> umanga
>>
>
>
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