[Plplot-devel] -bg with alpha gives strange overlay effect on x02c

2010-03-10 Thread David MacMahon
I just ran this... x02c -dev xcairo -bg ff_0.3 ...and noticed on the second plot I can see through to the first plot. I don't think I have any other non-cairo, alpha-capable drivers built so I can't tell if it's cairo-related or more general. Here are the devices I have available...

Re: [Plplot-devel] -bg with alpha gives strange overlay effect on x02c

2010-03-10 Thread David MacMahon
Thanks for confirming this, Alan! On Mar 10, 2010, at 8:09 , Alan W. Irwin wrote: -dev qtwidget does not have this problem, and neither does -dev svg. (For the latter, you must use the familying option -fam which will generate two files corresponding to the two pages.) I don't know how

Re: [Plplot-devel] -bg with alpha gives strange overlay effect on x02c

2010-03-10 Thread Alan W. Irwin
On 2010-03-10 10:15-0800 David MacMahon wrote: I'm not really sure how to interpret alpha for the background of a GUI window. What's behind the background to see through too? For graphics files (e.g. .png or .svg) they might be overlaid on something else so background transparency there

Re: [Plplot-devel] -bg with alpha gives strange overlay effect on x02c

2010-03-10 Thread David MacMahon
On Mar 10, 2010, at 11:05 , Alan W. Irwin wrote: There are already some neat transparent background effects being deployed on the desktop (e.g., if you move a KDE GUI it becomes transparent so you can see underneath it) that show this is possible. I think this might be a property of the