Re: color "none" for figures

[David Bateman]

Michael Goffioul wrote:
> On Sun, Feb 7, 2010 at 9:06 AM, David Bateman <address@hidden> wrote:
>   
> > Thorsten Meyer wrote:
> >     
> > > Hi,
> > >
> > > attached is a little patch, which allows a value of "none" for the "color"
> > > property of a figure.
> > > Example:
> > > plot(1,1)
> > > set(gcf, "color", [1 0 0]); # yellow background
> > > set(gcf, "color", "none");  # transparent background
> > >
> > >       
> > This should also be done for the axes as the axes and figures are treated
> > separately. Shouldn't "none" be the default color for the figure and axes?
> >     
>
> I'm not sure about the purpose of a transparent figure window.
> In Matlab, the figure color is the background color of the figure
> widget, it's not "none" by default (but something like light gray).
> What do you expect to happen with a figure color set to "none"?
> Transparent window?
>
> Also, the axes color is white by default. This makes sense if
> you consider that the figure color is light gray by default.
>
> Michael.
>
>   
I'd expect that "none" should make the figure transparent such that the 
color of the root of the window is seen as the color of the figure.... 
Not all terminals in gnuplot have a white background color and so using 
white as the default seems to me to be the wrong thing to do. 
Classically the TEK terminals had black backgrounds (I cut my teeth on a 
Visual 603 terminal with a TEK graphics emulator in the early nineties), 
but there are probably others.

D.