On Jan 17, 2008, at 2:37 AM, Alan W. Irwin wrote: > On 2008-01-16 22:47-0500 Hazen Babcock wrote: >> >> It looks like this driver scales alpha values in a different way >> than the >> cairo drivers. > > Hazen, could you comment the second page code of example 30? I am > having > trouble following exactly what it is supposed to do. From the > looks of your > pngcairo results, it appears your second page code imposes a large red > square on top of variously coloured small squares or a black > background > between the squares. The transparency of the large red square > appears to be > opaque at the top and transparent at the bottom.
That is what I was trying to achieve. I've added some comments to example 30 to hopefully make this more clear. -Hazen ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel