[leveller] Re: Leveller 2.6 patch 2.6.2

  • From: Ray Gardener <rayg@xxxxxxxxxxxxxxxxxx>
  • To: leveller@xxxxxxxxxxxxx
  • Date: Mon, 11 Feb 2008 00:21:29 -0800

Can you duplicate the problem with a smaller texture? And then privately send me the texture file and TER file so that I can try duplicating the problem here? 


Thanks,
Ray


Cees wrote:

Hi Ray,

In the past I used several programs to convert SRTM heightdata geotiff files
and SRTM satelite image geotiff files into DEM files and (after cropping)
corresponding geotiff image files.

Instead of needing all these other programs to get the files I want, I now
try to use Leveller 261 to do it all.

With Leveller I can select an area from a geotiff srtm and export it to DEM,
I can project the satelite geotiff image on it as georeferenced texture,
works great!
I can then select an area and crop it, saving the cropped DEM, works
flawlessly
The only thing is that if I want to save the texture after cropping a
overlayed SRTM geotiff, I get an filesystem error on saving it as geotiff.
Maybe I am doing something wrong...

The satelite image I use as texture is huge, 210 MB, made with
MultiSpecW32.exe, to get all the channel data from the sat. images into one
real-color-geotiff image.

This is what I tried to do:

Load the GEO heightdata tiff in Leveller
view-texture...geotiff sat image as texture..use coordinate system tagged
view-scene appearance....mountain-icon....overlays..texture tagged
view...map-pane...appearance...heightfield....texure tagged
selection...select none....selection tool....select area in map pane
edit...crop
file....export the DEM
file....output....Georeferenced texture...save the texture there as a
geotiff...this gives an error (filesystem problem)
view--map pane--export to bitmap---select Tiff/GEOtiff...this gives also the
same error (filesystem problem)

Do you know what is causing this error?

Highest regards,
Cees.
----- Original Message ----- From: "Greg Sandor" <gregory_sandor@xxxxxxxxxxx> 
To: <leveller@xxxxxxxxxxxxx>
Sent: Sunday, February 10, 2008 11:42 AM
Subject: [leveller] Re: Leveller 2.6 patch 2.6.2



Thanks!  The original dem is .tif, I cropped it in 3dem and saved as .ter.
Usually when I do this I also save the crop as a .dem, so I can overlay
orthoimagery and crop it to the exact terrain.  This time I did not save

the

cropped dems so I hoped that by loading the ter I could recover a dem.

Is there's a better way to overlay georeferenced imagery and crop it all

in

Leveller?  I want to wind up iwth a /ter for TG2 and a set of cropped
orthophotos for texturing.



Regards,

Greg

(614) 517-7204
greg@xxxxxxxxxxxxxx
http://www.gregsandor.com
----- Original Message ----- From: "Cees" <cvdmark@xxxxxxxxx> 
To: <leveller@xxxxxxxxxxxxx>
Sent: Sunday, February 10, 2008 5:22 AM
Subject: [leveller] Re: Leveller 2.6 patch 2.6.2



Hello Greg,

Instead of using a Terragen.ter file made from a .hgt(SRTM) file, you

can

import the SRTM into Leveller and export it as DEM from
there...flawlessly.
I'm not sure if Terragen.ter files contain all (if any) correct GEO
coordinates or projection info to work with in this manner.

Regards,
Cees.
----- Original Message ----- From: "Greg Sandor" <gregory_sandor@xxxxxxxxxxx> 
To: <leveller@xxxxxxxxxxxxx>
Sent: Sunday, February 10, 2008 10:45 AM
Subject: [leveller] Re: Leveller 2.6 patch 2.6.2



Today I discovered that in Leveller I can import a terragen .ter (which

I

made from SRTM) and export it as a USGS dem.  I tried this but couldnt
get
the dem to open.  Is there documentation on how to do it?  I forget the
exact error it threw, something like No bounds set...

Regards,

Greg

(614) 517-7204
greg@xxxxxxxxxxxxxx
http://www.gregsandor.com

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