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

[Derrick J Brashear]

On Mon, 2 Feb 2004, Curt Mills wrote:

> Hey Gerry:  What format are these maps?  I think I remember
> something about BIL on the GDAL mailing list.  Perhaps these are

Band Interleaved by Line. GDAL will deal, it can convert them to geotiff.
Some older USGS DOQs were bil files.

> simply strings of pixels, and you have to have the header in order
> to interpret them?  What can we do with them right now, if
> anything?

I don't remember for sure but I think it depends on the color depth.

> It sure looks like we just georeference them based on constant
> lat/long, which should be easy to do in Xastir, assuming we can get
> GDAL or something else to read them in.  Actually I think
> ImageMagick might be able to do it if we can feed it in a raster
> form it recognizes.