Re: [GRASS-dev] in trunk png/cairo d.vect overwrites previous images?
On Tue, Jan 31, 2012 at 11:15:47AM +0100, Moritz Lennert wrote: > >otherwise it doesn't really make sense as the elevation raster will not > >appear on map.png. > > Here's what I see as example on the page: > > export GRASS_RENDER_IMMEDIATE=cairo > export GRASS_PNGFILE=nc_spm.png > export GRASS_WIDTH=800 > export GRASS_HEIGHT=800 > export GRASS_PNG_READ=TRUE > > g.region rast=elevation > d.rast map=elevation > d.vect map=streams width=1 color=blue fcolor=aqua type=area,line > d.vect map=roadsmajor width=2 > > > i.e. GRASS_PNG_READ is set... :-) Ah, ok, I was looking at http://grass.osgeo.org/grass70/manuals/html70_user/pngdriver.html There it is not set. -- Pat ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] in trunk png/cairo d.vect overwrites previous images?
On 31/01/12 11:01, Patrice Dumas wrote: On Tue, Jan 31, 2012 at 10:36:01AM +0100, Moritz Lennert wrote: This behaviour is controlled by the GRASS_PNG_READ environment variable. If you set it to TRUE, then GRASS will lay the new d.vect on top of the already drawn vectors, otherwise it overwrites with the new. See http://grass.osgeo.org/grass70/manuals/html70_user/cairodriver.html. Thanks. I was pretty sure I missed something although I did read the Fine Manual before asking... Maybe the GRASS_PNG_READ description could be enhanced by adding Otherwise the GRASS_PNGFILE file content is overwritten each time a new display command is used. Will do, thanks for the suggestion. Also I think that the Example should also set export GRASS_PNG_READ=TRUE otherwise it doesn't really make sense as the elevation raster will not appear on map.png. Here's what I see as example on the page: export GRASS_RENDER_IMMEDIATE=cairo export GRASS_PNGFILE=nc_spm.png export GRASS_WIDTH=800 export GRASS_HEIGHT=800 export GRASS_PNG_READ=TRUE g.region rast=elevation d.rast map=elevation d.vect map=streams width=1 color=blue fcolor=aqua type=area,line d.vect map=roadsmajor width=2 i.e. GRASS_PNG_READ is set... :-) Moritz ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] in trunk png/cairo d.vect overwrites previous images?
On Tue, Jan 31, 2012 at 10:36:01AM +0100, Moritz Lennert wrote: > > This behaviour is controlled by the GRASS_PNG_READ environment variable. > If you set it to TRUE, then GRASS will lay the new d.vect on top of the > already drawn vectors, otherwise it overwrites with the new. See > http://grass.osgeo.org/grass70/manuals/html70_user/cairodriver.html. Thanks. I was pretty sure I missed something although I did read the Fine Manual before asking... Maybe the GRASS_PNG_READ description could be enhanced by adding Otherwise the GRASS_PNGFILE file content is overwritten each time a new display command is used. Also I think that the Example should also set export GRASS_PNG_READ=TRUE otherwise it doesn't really make sense as the elevation raster will not appear on map.png. -- Pat ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] in trunk png/cairo d.vect overwrites previous images?
On 31/01/12 00:20, Patrice Dumas wrote: Hello, I ask here first before because this seems a bit weird that nobody else reported it, but maybe I missed a bug report or something changed in grass 7? When doing more than one d.vect after a d.mon start=png (or cairo) the last one overwrite completly the previous one. With wx0 or 6.4 the vector was on top but did not remove the previous vector. Should I report that or is it known? This behaviour is controlled by the GRASS_PNG_READ environment variable. If you set it to TRUE, then GRASS will lay the new d.vect on top of the already drawn vectors, otherwise it overwrites with the new. See http://grass.osgeo.org/grass70/manuals/html70_user/cairodriver.html. Moritz ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] in trunk png/cairo d.vect overwrites previous images?
Hello, I ask here first before because this seems a bit weird that nobody else reported it, but maybe I missed a bug report or something changed in grass 7? When doing more than one d.vect after a d.mon start=png (or cairo) the last one overwrite completly the previous one. With wx0 or 6.4 the vector was on top but did not remove the previous vector. Should I report that or is it known? -- Pat ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
