[ gpsdrive ] Nautical maps

[Bill Bickley]

I would dearly appreciate a tutorial on how to generate a GPSDrive map
using the free NOAA EMC maps, tailored to the neophyte Linux user.  A
Google search of GPSDrive in marine applications turns up essentially
nothing.

Bill


-----Original Message-----
From: gpsdrive-bounces at lists.gpsdrivers.org
[mailto:gpsdrive-bounces at lists.gpsdrivers.org] On Behalf Of Hamish
Sent: Friday, February 29, 2008 4:27 AM
To: GPSdrive discussion list; tartifola at gmail.com
Subject: Re: [ gpsdrive ] Nautical maps

Hamish wrote:
> Also common for the US are BSB format raster charts (usually you buy
> the CD of your part of the coastline), but beware that newer editions
> may be encrypted for no other reason I can think of but pure
> corporate
> greed.
> GDAL can read those too. 

^^ I did not mean to imply that GDAL will decrypt encoded BSB charts.
It won't!


Stuart:
I read somewhere that cm93 format is S57 compliant?? If so gdal's OGR
could read it and so there will be a pathway into gpsdrive.

try 'gdalinfo' or 'ogrinfo' on the files to see if they can read it.

As far as I can recall the official gov't UK raster charts came in
useless-for-us encrypted form. No idea about what's common for the Med.


Hamish
(New Zealand, but done my fair share of blue water sailing in the
atlantic)



 
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