PMC Tactical forums

What type of transformation ("spherical conversion") does DEM2terrain exactly use please?

This is PMC Europe theater:


I did my own elevation map, because of I am not able to export detailed elevation map of theater from DEM2terrain. I can set the colours for different highs very good inside DEM2terrain. But exported bmp doesnt respect my colours setting and it looks still the same - like on the picture above...
So I did another map, using 3DEM software.
But my new bitmap doesnt fit the theater of course. It has an other georeference system.
I have set cornes of the area(we know lat/lon), and then cropped the image:

Can be I am making misstake already in this step, but I hope
data projection is still the same(cilindric), doesnt matter if I load them to DEMtoterrain or to 3DEM.
So I think the most preblematic is next step. Change this above shape ("trapezoid"?) to square (our theater).
I did it two times.
1) Deformation in bitmapeditor:

2)I mapped image onto polygon in 3D program, them stretched and rendered. Result here:

In both cases the cornes are good, but everything else is totally wrong
In conclusion:
a)what projection does use the data stored in this page:
http://www.ngdc.noaa.gov/ (from terrain tutorial)
b)Which transformation does DEMtoterrain software during mysterious "spherical conversion" - simple stretching doesnt work

Thank you
Luk

P.S.
I know, Arc gis software and similar can handle bitmaps much more clever using some reference points, but is there some simple way?

Perhaps these two threads could be of help to you:

viewtopic.php?t=20922

^----Pay attention to the end of page 1 and start of page 2. The rest is interesting also.

viewtopic.php?t=21003

Thank you very much Closter!
Your pdf is what I am trying to find!

I have red it all and it suggested me, that there
is a man (Blueprint) who is able to get a bitmap directly to/from "L" file!
Is it really true?

Luk