Re: AVIATIONTOOLBOX: How do you like your maps stitched?

"Tom Jackson" <[EMAIL PROTECTED]> writes:

>> What do you mean exactly by "After geo-referencing the map files"?

>Well, maybe my terminology is inaccurate, but what I meant to say was, I
>load, and calibrate the map image.

Nope, your terminology is dead on.

>Basically, I load the map projection
>information into the program (i.e., Lambert Conformal Conic, with the
>appropriate lat/lon info.) I got this information from one of the HTML files
>related to the specific map TIFF.

Stop doing that!  The sectionals are already GeoTIFFs.  The FAA has already
done all of that work for us.  (They guarantee 2 pixels RMS error, but I've
found distortions much greater than that.)

I'm also working on making more easily-digested chunks of data.  If you're
in the mood to burn some time and bandwidth, you can watch my progress.
        http://aviationtoolbox.org/munge/mosaic.cgi
Just change the extension to ".tif" on any of the images if you want a 5000
by 5000 uncompressed GeoTIFF.

(I need to tweak my edge-detection algorithm.  When I do, I'll clear those
images and start over but you're welcome to try it anyway.)

--kyler