[GRASS-user] Re: vector works in X0 monitor but not in gis.m (Daniel Victoria)

[Daniel Victoria]

Michael et al,

I'm happy to inform that I just compiled Grass from the latest svn and
the problem is gone. Map canvas works with both Polyconic American
projection and lat Long projection...

Cheers and happy new year!
Daniel

On Dec 27, 2007 7:07 PM, Daniel Victoria <daniel.victoria at gmail.com> wrote:
> Thanks! I will gladly test the fix as soon as my r.watershed process
> finishes. It's been running for 1 day and will probably take 2 more to
> end... my laptop is almost melting...
>
> Thanks again
> Daniel
>
>
> On Dec 27, 2007 6:47 PM, Michael Barton <michael.barton at asu.edu> wrote:
> >  I've committed the fix below suggested by Glynn. I tested it on the new NC
> > demo data set and it causes no problems.
> >
> > Of course, the old regexp statement worked too in my tests. Since I'm so
> > abysmal at regexp, I just have to go with this, like I did with the old
> > statement (someone else suggested it to fix an earlier problem with latlon
> > regions).
> >
> > Could someone please test this since I'm not completely clear what breaks
> > the old algorithm that works with this one? Hopefully this will work with
> > all projections this time.
> >
> > Michael
> >
> > ____________________
> > C. Michael Barton, Professor of Anthropology
> > Director of Graduate Studies
> > School of Human Evolution & Social Change
> > Center for Social Dynamics & Complexity
> > Arizona State University
> >
> > Phone: 480-965-6262
> > Fax: 480-965-7671
> > www: <www.public.asu.edu/~cmbarton>
> >
> >
> >
> > On Dec 27, 2007, at 6:38 AM, grass-user-request at lists.osgeo.org wrote:
> >
> >
> >
> >
> >
> >
> > Probably related to this in mapcanvas.tcl:
> >
> >
> >
> >
> >                 # Finally put this into wind file format to use with
> > GRASS_REGION
> >
> >                 regexp -nocase {^.* (\(.*\))} $parts(projection) trash end
> >
> >                 set parts(projection) [string trim $parts(projection) $end]
> >
> >
> >
> >
> >
> >
> >
> > The "*" operator will try to match as much as possble, so matching the
> >
> > string "99 (Polyconic (American))" against the regexp"^.* (\(.*\))"
> >
> > will result in the ".*" matching ""99 (Polyconic " and the "(\(.*\))"
> >
> > matching "(American))", so "end" will be set to "American)"
> >
> >
> >
> >
> > Also, using "string trim" here is bogus; it discards any leading or
> >
> > trailing section consisting of characters in the specified string,
> >
> > which may be more than just the string itself (if $end contains the
> >
> > digit 9, it will strip the projection code).
> >
> >
> >
> >
> > It should probably just match the portion that it wants, e.g.:
> >
> >
> >
> >
> >         regexp -nocase {^([0-9]+)} $parts(projection) trash
> > parts(projection)
> >
> >
> >
> >
> > rather than trying to match and discard the portion that it doesn't
> >
> > want.
> >
> >
> >
> >
> > _______________________________________________
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> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
> >
> >
>