[vtkusers] create the mesh for a surface

[David Doria]

I think you just need to run the result of the splat through
vtkContourFilter.

I just made this demo - see if it does what you need:
http://www.vtk.org/Wiki/Create_a_surface_from_Unorganized_Points_%28Gaussian_Splat%29

Thanks,

David


On Mon, Jun 29, 2009 at 9:58 AM, <phoenix.sjtu at yahoo.com.cn> wrote:

> I want to creat a mesh form the points cloud on the surface
> but Delaunary3D and surface reconstruction do not work
>
> So Finally i have to use the gaussian splatting
> it seem correct
> but what i got it's not a mesh
> It's a a surface with thickness
> So  does some one know how to shrink this thickness
>
> It's a surface with thickness in polyData
> I tried shrinkfilter it just shrink the size of the triangles, it doesn't
> work
> Thank you very much
>
>
> --- *09年6月24日，周三, David Doria <daviddoria at gmail.com>* 写道：
>
>
> 发件人: David Doria <daviddoria at gmail.com>
> 主题: Re: [vtkusers] create the mesh for a surface
> 收件人:
> 抄送: vtkusers at vtk.org
> 日期: 2009年6月24日,周三,下午11:18
>
>  On Wed, Jun 24, 2009 at 10:45 AM, $B2HIL(B $BNB(B <
> phoenix.sjtu at yahoo.com.cn<http://cn.mc151.mail.yahoo.com/mc/compose?to=phoenix.sjtu@yahoo.com.cn>
> > wrote:
>
>>
>>    Hi everyone
>> this is the first time i use this mail list
>> I hope it work
>> please reply me thank you very much
>>
>> I have a point cloud in 3D scanned from a surface of an object
>> I want to create the mesh(triangulization) for this surface
>>
>> I tried vtkSurfaceReconstructionFliter, but the output is not a mesh
>>
>> I tried vtkDeluanay2D but it project my point to a 2D plan
>> and my points is on a complex surface(for example a flower)
>> i cannot find the project function
>>
>> i tried vtkDeluanay3D it will create the mesh in side the object
>> I set alpha = 0.2 it will remove most the edge inside but it also remove
>> the edge on my surface
>> Someone has some good idea?
>> I thing it is problem very commun create a mesh for a surface
>> I see some CAD software do it perfectly i know there must be a solution
>>
>> Thank you very much for you attantion
>> LIANG Jiabin
>>
>>
> Liang,
>
> The list received your question correctly, welcome.
>
> Is your data from a single lidar scan (where it is all acquired from a
> single viewpoint)? Or do you have points on the full 3d object (ie. front
> and back and top and bottom, etc)?
>
> Thanks,
>
> David
>
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