Hi Pascal,
A world file contains the six parameters of an affine transformation like
x1 = Ax + By + C
y1 = Dx + Ey + F
All parameters are in separate rows in A, D, B, E, C, F order
example:
0.15 (A) pixel size in nature in x direction (e.g. 15 cm resolution)
0.0 (D) depends on rotational angle, afaik it must be zero for mapserver
0.0 (B) same as above
-0.15 (E) negative pixel size in nature in y direction
1234.56 (C) x position of the center of the pixel at upper-left corner
4567.89 (F) y position of the center of the pixel at upper-left corner
Zoltan
On Thu, 1 Nov 2007, Pascal Ehlert wrote:
Gregor Mosheh wrote:
I don't have a world file handy at the moment, but it only took me about 5
minutes to learn it for the first time. Name the worldfile
land_shallow_topo_8192.tfw and gdalinfo will automagically detect it and
suddenly change its tone. :)
Sorry, apparently I'm not as clever as you are.. ;-)
I'm totally new to the GIS sector and thus don't really understand the terms
used there and the techniques behind.
Would you (or someone else, of course) mind giving me an example world file
with a few comments, so that I can understand it?
Unfortunately I couldn't find such an example on the web.
Thank you again.
Pascal
