Found and fixed this. Now in the CVS What I think happened is that several months ago, it became (or I learned that it was) no longer necessary to set and unset GRASS_RENDER_IMMEDIATE for the GUI. Just set it and leave it set. I took this out of the main GUI code (mapcanvas.tcl), but forgot to take it out of the georect.tcl code (which does a replication of the same rendering commands to display a georect map. the result was that every time you displayed a map in the georectifier window, it would set, then UNSET GRASS_RENDER_IMMEDIATE. With this environmental variable unset, the main GUI (which no longer set and unset this variable at each display) was looking for a driver for outputting the display.
I took this unnecessary code out of georect.tcl and it all works fine. ***How can I find out if this needs to be backported to 6.2.2?****** It WILL need to be backported if the command to set/unset GRASS_RENDER_IMMEDIATE has been removed from mapcanvas.tcl. If this command is still in mapcanvas.tcl, georect.tcl ALSO needs this command (i.e., what I just removed). Michael On 7/2/07 9:53 AM, "Markus Neteler" <[EMAIL PROTECTED]> wrote: > Michael, > > On Mon, Jul 02, 2007 at 09:49:53AM -0700, Michael Barton wrote: >> Markus, >> >> The error you get indicates that the PNG driver has been 'turned off'. There >> is no clue in the list of commands you sent as to why this is so. Do you >> have the TclTk error message? > > I'll try to generate it again but it was than x0 isn't found (I think > as in the error log). > >> Today is kind of busy, but I'll try to do some testing here as soon as I >> can. > > thanks! > > markus > >> Michael >> >> >> On 7/1/07 1:02 PM, "Markus Neteler" <[EMAIL PROTECTED]> wrote: >> >>> Michael, >>> >>> this evening I wanted to update the geocoding section >>> in the upcoming GRASS book, but it failed... Some weeks >>> ago I co-registered two raster maps successfully, today >>> I tried the first time to register against a geocoded >>> vector map. It fails to find the tcl "monitor", see error.log >>> attached. >>> >>> I would be gratefule if you could take a look. >>> thanks >>> markus >>> >>> ------------------ >>> ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler >>> ITC -> since 1 March 2007 Fondazione Bruno Kessler >>> ------------------ >> >> __________________________________________ >> 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 >> > > ------------------ > ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler > ITC -> since 1 March 2007 Fondazione Bruno Kessler > ------------------ __________________________________________ 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 _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev

