this bug's URL: http://intevation.de/rt/webrt?serial_num=2626
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Subject: on the fly reprojection with .prj projection
Platform: other osX
grass obtained from: Other (CDROM etc) from http://wwwamb.bologna.enea.it/forgrass/
grass binary for platform: Downloaded precompiled Binaries
GRASS Version: 5,7
Arcview use in v8 and 9 .prj files to specified the projection of a shapefile. This allow the view to be
independant from shape projection. You may have many projections of shapefile like geographical,
utm and other and choose to make the view in utm. If not specified (no .prj) geographical is the
defaut.
If grass could support this feature it could be a verry good improvement. No need to reproject files
receive from many source. Just be sure each shape have is own .prj file.
With it and utility to make that .prj files for shape without that .prj is also needed.
-------------------------------------------- Managed by Request Tracker
On Fri, 17 Sep 2004, Request Tracker wrote:
Arcview use in v8 and 9 .prj files to specified the projection of a shapefile. This allow the view to be
independant from shape projection. You may have many projections of shapefile like geographical,
utm and other and choose to make the view in utm. If not specified (no .prj) geographical is the
defaut.
If grass could support this feature it could be a verry good improvement. No need to reproject files
receive from many source. Just be sure each shape have is own .prj file.
That would be a nice feature for v.external but I have never used it so can't go into detail. Only that if the external OGR file had no projection information it should not assume lat/long---there should be a warning and/or ask the user is it OK to interpret the map as being in the same projection as the current location.
With it and utility to make that .prj files for shape without that .prj is also needed.
That exists already: see the man page for g.proj
v.out.ogr also writes a .prj file when creating a Shapefile.