[Xastir-dev] Gerry C: Canadian Topo Maps, what to do with them?

[Gerry Creager (N5JXS)]

Getting in late on this one, sorry.  I tend to believe Derrick's right 
here.  I on't think you will be able to do BILs by glomming the header 
and making an arbitrary lat-lon referenced array.  I think the 
GDAL_translate solution will be the best approach.

BILs aren't very popular anymore.  I had to stop and think about what 
they were, since I've not seen them in anything I do for 3-4 years!

Let me know if I need to get parameters or try some testing.  I'm 
swamped, thanks to a week in Hawaii, but I can probably squeeze some 
time out somehow!
gerry

Derrick J Brashear wrote:
> On Mon, 2 Feb 2004, Curt Mills wrote:
> 
> 
> 
>>>Some older USGS DOQs were bil files.
>>
>>So ogr2ogr could convert them to geotiff that Xastir could handle?
> 
> 
> I thought ogr2ogr was only for vector, and you needed e.g. gdal_translate
> for raster. But, I did use gdal to convert all my DOQs to geotiff.
> 
> 
>>That might be about the best option.  Actually, if they could be
>>converted to a standard image file with a .geo, then people could
>>handle them with ImageMagick alone, skipping
>>libproj/libgeotiff/libgdal support.  Possible?  It seems that if
>>they are a constant lat/long shift per pixel, we could do that.
> 
> 
> Ew, I like my georeferencing embedded, the fewer files I need to keep in
> sync, the better. But yes, I think they're linear.
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University
Office: 979.458.4020  FAX: 979.847.8578
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