Nicolas Cellier uploaded a new version of Graphics to project The Trunk:
http://source.squeak.org/trunk/Graphics-nice.143.mcz==================== Summary ====================
Name: Graphics-nice.143
Author: nice
Time: 13 July 2010, 8:53:47.189 pm
UUID: 73b2435d-0711-4319-a602-5e5b997209d6
Ancestors: Graphics-jcg.142
_ -> :=
=============== Diff against Graphics-jcg.142 ===============
Item was changed:
----- Method: Point>>normal (in category 'point functions') -----
normal
"Answer a Point representing the unit vector rotated 90 deg clockwise.
For the zero point return a normal of -1@0 ."
| n d |
+ n := y negated @ x.
- n _ y negated @ x.
(d := (n x * n x + (n y * n y))) = 0 ifTrue: [ ^ -1 @0 ] .
^n / d sqrt!
Locked
