🚀 go-pugleaf

I could rotate a bitmap pixel by pixel, but it seems like a
lot of work given the various color formats.  Is there an
easier (and faster) way?

Speaking of bitmaps, I am drawing a large, multi-color bitmap
(a frequeny-time spectrogram) using the Rectangle() function
to fill in each df dt block.  This also seems like too much 
work since I have to create a pen and a brush with the desired
color, select these objects, draw the rectangle, and then delete
both objects.  This is repeated 100,000 times or so and is very
slow.  I experimented with the SetPixel() function instead, but
it is even slower!  Also, SetPixel() will not dither the color
if I am running on a paletteless display.  Any suggestions?

Thanks,
-Mike-
-- 
Dr. Michael McCarrick                   UCLA Department of Physics
Plasma Physics Lab                              405 Hilgard Avenue
mmccarri@physics.ucla.edu                    Los Angeles, CA 90024