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

Daniel Victoria daniel.victoria at gmail.com
Thu Dec 27 16:07:56 EST 2007


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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>
>


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