[GRASS-user] d.* command problems

[Glynn Clements]

Hamish wrote:

> > > > Try making this change to the d.correlate script:
> > > >
> > > > --- d.correlate (revision 41749)
> > > > +++ d.correlate (working copy)
> > > > @@ -97,6 +97,8 @@
> > > >  fi
> > > >
> > > >  d.erase
> > > > +GRASS_PNG_READ=TRUE
> > > > +export GRASS_PNG_READ
> > > >  if [ $? != 0 ] ; then
> > > >  exit 1
> > > >  fi
> > > 
> > > Should this be submitted?
> > 
> > I think so.
> > 
> > I'll make the equivalent fix for 7.0.
> 
> 
> is this appropriate for Xmon use in grass6?

XDRIVER doesn't pay any attention to GRASS_PNG_READ, so it's
unaffected.

GRASS_PNG_READ=TRUE causes the framebuffer contents to be preserved
from one call to the next, rather than each command starting with a
blank "screen". Scripts which run multiple d.* commands typically need
this in order to work correctly with direct rendering.

-- 
Glynn Clements <glynn at gclements.plus.com>