[Paraview] PV for Mesh Generation

[Randall Hand]

I was actually hoping for some way to do this with the standard ParaView
Distribution.
--
Randall Hand
Visualization Scientist, DAAC
http://www.yeraze.com


On Fri, Feb 13, 2009 at 10:50 AM, Bryn Lloyd <blloyd at vision.ee.ethz.ch>wrote:

> You can do the following:
>
> 1. start with original surface (original triangles), with N nodes
>
> 2. extrude by a certain distance: you get a new surface (new triangles)
>
> 3. the extrusion simply adds corresponding nodes for each original node, so
> a node with id k has a corresponding node with id N+k.
>
> 4. connect triangle i in original triangles with triangle i in new
> triangles. Make a prism for each triangle.
>
> 5. convert all prisms to tetrahedra using "triangulate"
>
>
> Most of the code necessary for this can be found here (steps 1-4, 5 is
> already in paraview):
> http://www.vision.ee.ethz.ch/~blloyd/Extrusion/<http://www.vision.ee.ethz.ch/%7Eblloyd/Extrusion/>
>
> -Bryn
>
>
>
>
>
> On Feb 13, 2009, at 5:32 PM, Randall Hand wrote:
>
>  I have a 2D Triangulated mesh that a user wants extruded into a 3D Shape
>> for use in simulation work.
>>
>> I tried using the "Linear Extrusion" filter, but that only gets the outer
>> edges.  What I really need to do is extrude the triangles into 3D
>> Triangulate Prisms (5-sided solids, 2 triangles & 3 quads).  Is there any
>> way to do this?
>>
>> I tried doing:
>> Dataset
>>  |- Extract Surface - Linear Extrusion
>>  |- Extract Edges - Linear Extrusion
>> Append both Together - Clean
>>
>> That's close, but I have a collection of 2D Primitives, and lose all the
>> interior volume.
>>
>> --
>> Randall Hand
>> Visualization Scientist, DAAC
>> http://www.yeraze.com
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