Dear David Doria & Bill Lorensen;<br><br>I am sorry, I made a mistake. The number of points with vtkLinearSubdivisionFilter has been about 3 times compared with the number of points without vtkLinearSubdivisionFilter for a cone source. Also I displayed point cloud of a cone source which has been subdivided by vtkLinearSubdivisionFilter in Img-01.png (Img-00.png shows the point cloud of a cone source without subdivision).<br>
<br>My new problem is that I want to much more points than one subdivision by vtkLinearSubdivisionFilter. I know I can use vtkLinearSubdivisionFilter for many times to realize this purpose, for example I use vtkLinearSubdivisionFilter 10 times to obtain much more points, but is there any simple method to realize the same purpose ?<br>
<br>Thank you!<br><br><div class="gmail_quote">2012/5/11 Bill Lorensen <span dir="ltr"><<a href="mailto:bill.lorensen@gmail.com" target="_blank">bill.lorensen@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Rong,<br>
<br>
I believe that David is correct. Subdivision only works on triangles,<br>
so add a vtkTriangleFilter before the subdivision filter.<br>
<br>
Bill<br>
<div><div class="h5"><br>
On Thu, May 10, 2012 at 11:08 AM, David Doria <<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>> wrote:<br>
>> I tried subdivision on above link, but the number of points is not changed<br>
>> on vtkConeSource. Moreover, I used subdivision on vtkSphereSource, the<br>
>> number of points on sphere is increased. So I do not know why there is no<br>
>> effect on vtkConeSource?<br>
><br>
> Please send some compilable code that shows that the number of points<br>
> is not changing. The only thing I could suggest is to use the<br>
> vtkTriangleFilter on the vtkConeSource before using a subdivision<br>
> filter.<br>
><br>
> David<br>
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</div>Unpaid intern in BillsBasement at noware dot com<br>
</blockquote></div><br><br clear="all"><br>-- <br><br> ---------------------<br>Best Regards!<br><br>===============================================<br>Rong Xu, Ph.D Student<br>Ohya Lab<br>Graduate School of Global Information
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