[DotNet-OSGeo] RE: 3D display

[Michael P. Gerlek]

Equivalent to Draw Point, yes. 

 

From: dotnet-bounces at lists.osgeo.org [mailto:dotnet-bounces at lists.osgeo.org]
On Behalf Of Carsten Troelsgaard
Sent: Tuesday, May 31, 2011 11:24 AM
To: dotnet at lists.osgeo.org
Subject: RE: [DotNet-OSGeo] RE: 3D display

 

I had to google TIN-algorithm to get a gist of what you talk about. It looks
like the triangulation I've tried to figure out. I'm not getting passed the
convex hull. I've writte a pile of code that hasn't been tested .. it's
doomed. 
I assume that you are working on the clouds that you collect with the lidar?

 
The point 'painting' .. is that the Device.DrawPoints (or something
eqvivalent, Draw.Point is not supported in Xna)
 
 
> One other thing-
> 
> >
http://cid-382e99b169b58267.photos.live.com/self.aspx/Billeder/ng%5E_2.jpg
> 
> From this image, it looks like you are using gridded data, which makes the
> display issue a little simpler. I usually deal with point clouds, which
are
> not gridded, so either I display just a set (cloud) of points, or I have
to
> run a TINning algorithm to make a surface to display.
> 
> One of the issues I like to complain/whine about a lot is the lack of a
> really good, standalone-portable, quality-scalable TIN construction
library.
> Having something like that is a part of my dream 3D geo engine library...
> 
> -mpg
> 
>  
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/dotnet/attachments/20110531/fb225d59/attachment.html