[Paraview] Project polygon onto surface

[Adam Dershowitz]

I tried it a few times, and it kept crashing Paraview.  So, then I read up on, it and seemed, from the description, that it was not what I wanted anyway.  But, if you think it is, I will see if I can get it to work.  

-- Adam









On 10/26/16, 1:01 AM, "postgurke at web.de" <postgurke at web.de> wrote:

>Adam,
>
>Have you actually tried the filter? Because I think the output is exactly what
>you're asking for: the "section" of the surface is the part of the surface where
>the polyline is proceted onto it, hence a polyline with the regarding topography
>values for the respective z coordinates.
>
>Cheers
>Venke
>
>
>
>> Adam Dershowitz <adershowitz at exponent.com> hat am 25. Oktober 2016 um 17:29
>> geschrieben:
>> 
>> 
>> 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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