# vtk "make polygon more dense" ?
**URL:** https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027
**Category:** Support
**Created:** [November 2, 2019, 5:06pm UTC](https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027 "2019-11-02T17:06:16Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@DominionSoftware](https://discourse.vtk.org/u/DominionSoftware)
#### Post date: [November 2, 2019, 5:06pm UTC](https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027/1 "2019-11-02T17:06:16Z")
I’d like to make a cylinder more “solid”. Is there a filter or algorithm for that in VTK?
I suppose an algorithm to make a mesh that connects the points on the outer edge of the cylinder to fill the inside with triangles of some density.
Thanks
Rick
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### Author:  [@dgobbi](https://discourse.vtk.org/u/dgobbi)
#### Post date: [November 3, 2019, 2:08pm UTC](https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027/2 "2019-11-03T14:08:41Z")
VTK doesn’t have any volume meshing filters. Or at least, none that I know of. You might want to look at [CGAL](https://github.com/CGAL).
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### Author:  [@DominionSoftware](https://discourse.vtk.org/u/DominionSoftware)
#### Post date: [November 3, 2019, 2:25pm UTC](https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027/3 "2019-11-03T14:25:28Z")
Thanks looks like that might do what I want.
Rick Frank
Dominion Software, Inc.
825 Beacon Street
Newton, MA 02459
Medical, Scientific, and Industrial Software
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### Author:  [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [November 3, 2019, 4:51pm UTC](https://discourse.vtk.org/t/vtk-make-polygon-more-dense/2027/4 "2019-11-03T16:51:47Z")
Unfortunately, CGAL license is mostly GPL (or commercial). If you need volumetric mesher with non-restrictive license then you can have a look at SCI’s [Cleaver2](https://github.com/SCIInstitute/Cleaver2). We added a GUI for Cleaver2 and TetGen to 3D Slicer ([Segment Mesher extension](https://github.com/lassoan/SlicerSegmentMesher)), if you want to give it a quick try.