[Xastir-dev] Re: [aprssig] Xastir and Toporama Maps (fwd)

[Bob Nielsen]

On Mon, Feb 02, 2004 at 12:40:42PM -0800, Curt, WE7U wrote:
> 
> Anyone know about these?  Can someone check out the format and
> report back to the list?.
> 
> If there's a free source of Canadian topo's, we need to try to
> support them.  I'm not that far from Canada, so it'd benefit me as
> well.


Me too!

I found a readme:

The file vanmos.zip is composed of 16 ERS-1 images.  It is 4321 pixels
by 3601 lines and contains 1 band of data.  The images were acquired
between February 28, 1993 and April 23, 1993.  The geographic bounds
are: Latitude 48° - 51° N and Longitude 123° - 129° W, with sampling
intervals of 3 minutes (latitude) and5 minutes (longitude).

The file vandem.zip is a digital elevation model of the same area as
described above.  The file dimensions and boundaries are the same.

In a quick look, I didn't see any definition and don't know how to
interpret the data, but this may help:

$ unzip -Z vanmos.zip
Archive:  vanmos.zip   3665675 bytes   5 files
-rw-rw-rw-  2.0 fat      595 t- defN 28-Apr-99 07:48 lisezmoi_vancouver.txt
-rw-rw-rw-  2.0 fat      494 t- defN 28-Apr-99 07:48 readme_vancouver.txt
-rw-rw-rw-  2.0 fat 15559921 b- defN 28-Apr-99 07:49 vanisl_mos.bil
-rw-rw-rw-  2.0 fat       89 t- defN 24-Aug-00 14:07 vanisl_mos.hdr
-rw-rw-rw-  2.0 fat      330 t- defN 25-Aug-00 14:28 vanisl_mos.aux
5 files, 15561429 bytes uncompressed, 3665105 bytes compressed:  76.4%

vanisl_mos.hdr:

BYTEORDER      M
LAYOUT       BIL
NROWS         3601
NCOLS         4321
NBANDS        1

vanisl_mos.aux:

BYTEORDER      M
LAYOUT       BIL
NROWS         3601
NCOLS         4321
NBANDS        1


73, Bob N7XY