That's a great resource, thx! I think what I'm missing in order to do the
collar thing is a polygon from the FAA that goes around the actual map
portion of the image. I've scoured the FAA site and its just not there.
(They have a set of DVD's that contain this same map data that you need to
pay
Hi Brian-
Thanks so much for your help. That works, though I feel a little silly now
because I am realizing the lat/lon the FAA provides with these is the
corners of the entire map image, not the map itself (these maps have a lot
of white borders around them, which is what I am trying to crop). I
Thanks Jean-Claude, that works -- in QGIS i can see the border I want to crop
is -110270 89629 110288 -88560 -- but I guess what I am asking is if there
is any way to do this programmatically.. i.e. automatically turn the lat/lon
coordinates into these values.
-Dan
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Sorry, error is
Input file size is 8000, 5885
Computed -srcwin 4494 2948 0 0 from projected window.
-srcwin 4494 2948 0 0 falls outside raster size of 8000x5885
or is otherwise illegal.
I am not sure I understand how to project the lat/lon.
-Dan
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http://osgeo-o
Hi there!
Please forgive this terribly newbie question. Been searching all day and I
just don't get it.
I have a geotiff VFR image from the FAA with the following coordinates as
reported by gdalinfo:
Upper Left ( -143411.876, 94058.326) ( 78d44'4.05"W, 39d49'53.24"N)
Lower Left ( -143411.87
