Dear Java 2D dev team,
I came across your java.awt.geom.ArcIterator class in which an arc
Bezier control point segment length is determined in method
btan(double). You arrive at the following equation:
4/3*(1 - cos(a/2))/(sin(a/2))
It is mentioned that this can return NaN for small "a" and so it is
written as:
4/3*(sin(a/2))/(1 + cos(a/2))
Please note that this relation can also be written as follows:
4/3*tan(a/4)
A performance increase and no NaN issues ;-)
Kind regards,
Ralph Hummeling
+316 5758 1679
Hummeling Engineering BV
www.hummeling.com
