...@lists.openscenegraph.org] On Behalf Of Tomlinson,
Gordon
Sent: Wednesday, March 02, 2011 6:10 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Getting height data of a terrain(flt file)
You can get the latest spec for OpenFlight here
http://www.presagis.com/products_services/standards/openflight/
Chris I
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Tomlinson,
Gordon
Sent: Wednesday, March 02, 2011 6:10 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Getting height data of a terrain(flt file)
You can get the latest spec for OpenFlight here
http://www.presagis.com
] On Behalf Of Chris 'Xenon'
Hanson
Sent: Tuesday, March 01, 2011 10:53 PM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Getting height data of a terrain(flt file)
On 3/1/2011 7:54 PM, Mukund Keshav wrote:
Hi Robert,
Thanks for the reply. Could you please tell where i can find
Thanks Chris, Andreas, Gordon.
@Andreas.
However, if you want to extract a regular terrain height raster from an
OpenFlight database, I would say the best solution is to write an OSG
application that simply intersects vertically with the terrain at equal
distances and puts the result in
Hi Mukund,
I just meant that you could implement a spatial traverse over the
terrain bounding box with equal steps in X and Y, intersect vertically
with the terrain and put the resulting terrain heights in an image which
you can write to disk with one of the OSG image plugins implementing
Thanks again Andreas,
im pretty new to OSG. im missing something here.
intersect vertically with the terrain and put the resulting terrain heights
in an image
Now, how does the intersection yield me a heightmap? or a elevation data?
If an elevation raster on disk is what you want,
Hi Mukend,
On Wed, Mar 2, 2011 at 6:00 PM, Mukund Keshav osgfo...@tevs.eu wrote:
Now, how does the intersection yield me a heightmap? or a elevation data?
You build yourself a heightmap for a series of height queries. The
osgintersection and osgpick example provides and examples of how to do
Hi Mukund,
On Wed, Mar 2, 2011 at 7:16 PM, Mukund Keshav osgfo...@tevs.eu wrote:
Well, in my application/project, i would want to know the gradients at
places, ie how the terrain slope is varying. To do this, won't we need a
heightmap? from which we can calculate the varying gradient?
You
You won't need a height map at all :-)
Wow! Cool! Was breaking my head over this! il look into them. Thanks a lot!
i just looked into osgIntersection.
Mukund
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=37263#37263
...@lists.openscenegraph.org
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Tomlinson,
Gordon
Sent: Wednesday, March 02, 2011 6:10 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Getting height data of a terrain(flt file)
You can get the latest spec for OpenFlight here
http
Hello Everyone,
im using .flt files to load terrain. i loaded a sample terrain from the OSG
data.(Joedirt.flt).
i was wondering if there is a way to obtain the heightfield/heightmap for the
terrain?
i googled for .flt file format. i could not get any information on it. Could ot
be a closed
Hi Mukend,
OpenFlight just stores terrain and meshes, not height fields.
Robert.
On Tue, Mar 1, 2011 at 7:08 PM, Mukund Keshav osgfo...@tevs.eu wrote:
Hello Everyone,
im using .flt files to load terrain. i loaded a sample terrain from the OSG
data.(Joedirt.flt).
i was wondering if there
Hi Robert,
Thanks for the reply. Could you please tell where i can find the exact file
format for flt files?
Thanks,
Mukund
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=37234#37234
___
On 3/1/2011 7:54 PM, Mukund Keshav wrote:
Hi Robert,
Thanks for the reply. Could you please tell where i can find the exact file
format for flt files?
FLT isn't really an OSG format, it's a MultiGen format. Documentation on it
is very poor
and sparse. I wouldn't pursue this unless you
Hi Mukund,
OpenFlight is quite complicated yes, but actually more well documented
nowadays. However, if you want to extract a regular terrain height
raster from an OpenFlight database, I would say the best solution is to
write an OSG application that simply intersects vertically with the
terrain
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