thomas@hpugrca.HP.COM (Thomas Buenermann) (10/16/90)
Hi!
#define DISCLAIMER ON
We are looking for an algorithm ( an implementation using Xlib calls
from C would be _perfect_ C-) that clips circles:
__----__ We need do draw only the points
/ \ within the rectangle. We are
/ \ aware of the problem that there
+------------------------+ \ may be more than one segment to
| | | | draw...
| | | |
| | | |
| \ | / We would also be grateful if we
| \ | / could get hold of an implementa-
| \__ | __/ tion of a fast circle drawing
| --+- algorithm (Bresenham or other).
| |
+------------------------+
Background: we want to help a customer that uses integers outside the signed
16 bit range to render with Xlib calls. The X11 protocol truncates the inte-
gers to 16 bit and produces awkward "folded" images.
Please reply to me ( thomas@hpugrca ) or to stephan@hpugrca.
Thomas Buenermann and Stephan Winters
Hewlett-Packard Co.
German Customer Response Center in Ratingen