[GRASS-dev] [grass-code I][544] Map Display crashes when zooming (too much) in!

[Michael Barton]

I just tried this with cvs compiled from an update of this morning and had
no problems.

In normal mode, if you zoom to less than 1 raster cell, a TclTk message box
pops up saying you've exceeded the maximum zoom.

In explore mode, you can zoom to much less than 1 raster cell.

In neither case did I get a TclTk error like the one below.

I did wait until a map  was completely displayed before trying to zoom
again.

I tried this on a Mac PPC G5, with OS X 10.4.11.

Has anyone else had this problem?

Michael


On 11/28/07 5:01 PM, "grass-dev at lists.osgeo.org" <grass-dev at lists.osgeo.org>
wrote:

> code I item #544, was opened at 2007-11-29 00:01
> Status: Open
> Priority: 3
> Submitted By: Nikos Alexandris (nikosa)
> Assigned to: Nobody (None)
> Summary: Map Display crashes when zooming (too much) in!
> Issue type: other bug
> Issue status: None
> GRASS version: CVS HEAD
> GRASS component: display
> Operating system: Linux
> Operating system version: Ubuntu 7.10
> GRASS CVS checkout date, if applies (YYMMDD):
> 
> 
> Initial Comment:
> .The Display Crashes when zooming in too much in a specific point (in a raster
> map) displayed in Map Display.
> 
> .First error message is: Error setting region: child process exited abnormally
> 
> .Second error message (after pressing ok): Error: can't read
> "parts(projection)"...
> 
> can't read "parts(projection)": no such variable
> can't read "parts(projection)": no such variable
>     while executing
> "regexp -nocase {^.* (\(.*\))} $parts(projection) trash end"
>     (procedure "MapCanvas::runprograms" line 46)
>     invoked from within
> "MapCanvas::runprograms $mon [expr {$mymodified != 0}]"
>     (procedure "MapCanvas::drawmap" line 38)
>     invoked from within
> "MapCanvas::drawmap $mon"
>     (procedure "MapCanvas::display_server" line 9)
>     invoked from within
> "MapCanvas::display_server"
>     ("after" script)
> ---
> 
> .Don't know if g.region -p is necessary to report... (just for any case):
> 
> GRASS 6.3.cvs (Peloponnese_HGRS87):~/> g.region -p
> projection: 99 (Transverse Mercator)
> zone:       0
> datum:      towgs84=-199.87,74.79,246.62
> ellipsoid:  grs80
> north:      4255230
> south:      3994272
> west:       226090
> east:       468372
> nsres:      249.95977011
> ewres:      250.03302374
> rows:       1044
> cols:       969
> cells:      1011636
> [Raster MASK present]
> 
> 
> 
> ----------------------------------------------------------------------
> 
> You can respond by visiting:
> http://wald.intevation.org/tracker/?func=detail&atid=204&aid=544&group_id=21
> 

__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton