[Paraview] Project polygon onto surface

[Adam Dershowitz]

I don't think that will do it.  Because, I don't want to slice anything.
I just want to show the boundaries on the 3D surface.  I want to project the polygon that marks the edges of a region, onto the 3D topography.  
It seems that Slice Along Polyline uses a laser to cut a section of the surface, according to the instructions.  Instead I want to see each spot where the laser hits on the surface.  

________________________________________
From: postgurke at web.de [postgurke at web.de]
Sent: Tuesday, October 25, 2016 11:13 AM
To: Adam Dershowitz; paraview at paraview.org
Subject: Re: [Paraview] Project polygon onto surface

Hi Adam

I think the Slice Along Polyline Filter is what you need. Just select the data
set and the poly line in the window popping up and then proceed in the
properties section as usual.

Cheers
Venke



> Adam Dershowitz <adershowitz at exponent.com> hat am 25. Oktober 2016 um 16:01
> geschrieben:
>
>
> Is there a way to project a 2D, or 3D polygon onto a surface.
> Specifically I have some elevation data, that is displaying fine.  But the
> data has a lot of vertical variation.  I have a polygon that represents the
> boundaries of different regions.  So, the polygon is effectively 2D.
>  Although, I can give it a 3D values as well.
> The difficulty is that I can know the elevation of the corners, but the lines
> between those corners often drop "underground".
> So I would like to project the 2D (or 3D) polygon region onto the 3D ground
> elevation.
> You can think of this as having a topo map and I want to show the lines around
> an individual piece of property.
> Is there a filter that can do this?
>
> Thanks,
>
> --Adam
>
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