Re: background color of printed figures

[Torsten Lange]

Am Freitag, 1. April 2011 15:48:19 schrieb William Krekeler:
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On Behalf Of Torsten Lange Sent:
> Friday, April 01, 2011 8:13 AM
> To: Octave Help
> Subject: Re: background color of printed figures
>
> Am Freitag, 1. April 2011 13:54:05 schrieb Ben Abbott:
> > On Apr 1, 2011, at 6:32 AM, Torsten Lange wrote:
> > > Hello!
> > >
> > > Can I change somehow the background color when printing to png-format?
> > > I plot a my graphs using the loop variable (<=6) for colors. When i=6
> > > then the symbol color is white, which is ok for the plots (grey
> > > background) but not for the png-prints where background is white.
> > >
> > > I have to print 100s of raw figures for visual evaluation. No need for
> > > high quality.
> > >
> > > GNU Octave, version 3.0.2
> > > used print command is:
> > > print -dpng "file.png"
> > >
> > > Thanks, Torsten
> >
> > Would placing a colored patch in the background solve your problem?
> >
> >     help patch
> >
> > Ben
>
> Thanks, Ben!
>
> I had to pre-iterate through all data sets to find min/max of the plot
> area. Its an ok-workaround and the pngs now come with a darker
> background!!! Although, it makes the figures even more ugly ;)))
> The grid disappeared unfortunately. I guess it's below the patch.
>
> Have a nice weekend,
> Torsten
>
>
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> Torsten,
>
> Try FaceAlpha or similar to set the patch transparency.
>
> Bill Krekeler
Hi Bill,
seems not to do transparency. No error, no transparency... Anyway, think I can 
live with it for the time being.

Thank you, Torsten