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

[Michael Barton]

Glad to hear it. Thanks to Glynn for the suggested fix.

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 31, 2007, at 9:47 AM, Daniel Victoria wrote:

> 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
>>>
>>>
>>