Hi,
Looking for some guidance on importing Canadian GeoBase data into grass. I'm new to grass, using 5.3 ported to OSX, tried r.in.gdal & r.in.dted to no avail. Read manuals, etc. too much over the last week. Tried US data to test for bad data, no go. I must be missing something!?
???
Peter
Ian,
I am attempting to import DEMs of Columbia Valley, BC. The data is .75' resolution, 1201X1201pts, ascii DTED data. I have successfully imported some test data from US dems to MACDEM, but can't import into GRASS. "file not available" with r.in.dted. With r.in.gdal, the error code is "usr/lib/??.lib does not exist. Exported a PGM file from MACDEM of dems with r.in.pgm - imported 100% as "test_dem". Nothing shows up on x0 monitor.
The end result I'm working towards is:
tiled VRML of 3D terrain visualizations;
delivered via java as a PPGIS where citizens provide me with georeferenced environmental impact data over the web;
analyze for regional cumulative environmental impacts.
Any help would be great,
Peter
On 29-Aug-04, at 6:52 PM, Ian Macmillan wrote:
Hi there Peter, what type of data is GeoBase data? What are the error messages
you get when trying to import? Also when you tried to test for bad data, you
said it was "no go". Does this mean you couldn't import any data of any type?
It is hard to answer your questions without this kind of information. I
understand your frustration (been there myself), but try to be a little more
explicit with your errors on the mailing list, and the answers you get might be
more helpful.Cheers,
IanQuoting Peter Sprague <peter_sprague@mac.com>:
Hi,
Looking for some guidance on importing Canadian GeoBase data into
grass. I'm new to grass, using 5.3 ported to OSX, tried r.in.gdal &
r.in.dted to no avail. Read manuals, etc. too much over the last week.
Tried US data to test for bad data, no go. I must be missing
something!????
Peter
-----------------------------------------------------
Ian MacMillan
Geological Sciences-UCSB"insert witticism here"
On 8/29/04 7:47 PM, "Peter Sprague" <peter_sprague@mac.com> wrote:
Ian,
I am attempting to import DEMs of Columbia Valley, BC. The data is
.75' resolution, 1201X1201pts, ascii DTED data. I have successfully
imported some test data from US dems to MACDEM, but can't import into
GRASS. "file not available" with r.in.dted.
I'm not sure why you get this error. Sounds like the path or file name is
typed wrong.
With r.in.gdal, the error
code is "usr/lib/??.lib does not exist.
This sounds like you don't have libgdal installed or installed correctly. If
you are using OSX, use Lorenzo Moretti's binary package. On this side of the
Atlantic, I am providing a fast mirror for Lorenzo's package
<www.public.asu.edu/~cmbarton/grass.htm>. Make sure you install the
libraries first. These include gdal, tcltk (for x11), and several other
needed libs. They come in the complete package or separately.
Exported a PGM file from
MACDEM of dems with r.in.pgm - imported 100% as "test_dem". Nothing
shows up on x0 monitor.
Use g.region to set the region to match the map you just imported. (You're
monitor is displaying a different part of the world than the part with your
map.) Then display it. Note, that if you exported the file as a PGM, it
needs to be imported into an xy location because it doesn't have any
georeferencing information along with it.
The end result I'm working towards is:
tiled VRML of 3D terrain visualizations;
delivered via java as a PPGIS where citizens provide me with
georeferenced environmental impact data over the web;
analyze for regional cumulative environmental impacts.
Sounds like you should take a look at UMN mapserver (link from my web site).
Hope this helps
Michael Barton
____________________
C. Michael Barton, Professor
School of Human Diversity and Social Change
PO Box 872402
Arizona State University
Tempe, AZ 85287-2402
USA
Phone: 480-965-6262
Fax: 480-965-7671
www: <www.public.asu.edu/~cmbarton>