Changeset 5700 for developers/werner/cncmap/rect/rect.c

Timestamp:

10/21/09 22:11:17 (4 years ago)

Author:

werner

Message:

• README: explained what all this is about
• README, rect/rect.c: described "normalized" format used by "rect"
• zscan/: new utility - a surface scanner

File:

• developers/werner/cncmap/rect/rect.c (modified) (1 diff)

developers/werner/cncmap/rect/rect.c

@@ -85 +85 @@
         lr_calc(&z0, &zx, &zy);
 
+        /*
+         * Reorder the points such that "o" becomes the corner, "a" and "b"
+         * define the sides of the rectangle, and the angle from "a" to "b" is
+         * as close to 90 degrees as possible, in a counter-clockwise
+         * direction.
+         *
+         * If no angle can be found that's reasonably close to 90 degrees, we
+         * give up.
+         */
+
         best_angle = 0;
         for (o = 0; o != 9; o += 3) {