[GRASS-user] Connecting GRASS to a MySQL database?

[PixelPusher]

Sorry for the n00bish question, but I'm confused by the GRASS on-line 
docs.


I have a MySQL database running on my local computer. Let's say that the 
MySQL user name is TRD and he has access to a database called TRD where 
I want to store my StateBoundaries table.


I can start the  GRASS (6.4.0) Python interface and select 
Database-Manage Databases-Connect from the pulldown menu. I am then 
faced with the choice of driver, where I select mysql. But, then it 
needs the Database name. This is where I get lost. The string in the 
text field says, $GISDBASE/$LOCATION_NAME/$MAPSET/TRD. I'm not sure 
where GRASS is getting the values that substitute for those things that 
look like script variables. I guess the $LOCATION_NAME and $MAPSET 
come from the location and mapset that I selected when GRASS started. 
But, where is $GISDBASE set?


I also step through the log in process by setting the appropriate user 
name and password. I know that I can use this combination to access the 
MySQL database through its command line interface.


The next thing I do is try to test the connection. However, this results 
in lots of errors like, Cannot connect to MySQL, Access denied for 
user and ERROR: Unable to open database 
$GISDBASE/$LOCATION_NAME/$MAPSET/TRD. It looks like GRASS is not 
using the right username and password and not doing the variable 
substitution that I was expecting.


Can anoyone give me some hints on how to get this thing started?

Thanks!
Thom

---
   Man will occasionally stumble over the truth, but most of the time
   he will pick himself up and continue.  -- Winston 
Churchill

___
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] Using GRASS with GPS

[PixelPusher]

I have what I thought was going to be an easy problem, but it is of 
course more complicated than I'd expected.


I need to query a GPS that is attached to my computer (by USB or 
Bluetooth) for my current location and then query a road network 
database to find the road segments within some arbitrary distance. Does 
GRASS support that kind of operation? Can anyone get me started on how 
to do it?


Thanks! It has been a while since I've done anything with GRASS and I'm 
having to re-learn much of what I used to know.


---
   Man will occasionally stumble over the truth, but most of the time
   he will pick himself up and continue.  -- Winston 
Churchill

___
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user