--- a/cocoaTouch/otherSrc/CGPointUtils.c Sat Jan 30 01:46:23 2010 +0000
+++ b/cocoaTouch/otherSrc/CGPointUtils.c Sat Jan 30 18:23:42 2010 +0000
@@ -17,24 +17,20 @@
CGFloat deltaX = second.x - first.x;
CGFloat deltaY = second.y - first.y;
return sqrt(deltaX*deltaX + deltaY*deltaY );
-};
+}
CGFloat angleBetweenPoints(CGPoint first, CGPoint second) {
CGFloat height = second.y - first.y;
CGFloat width = first.x - second.x;
CGFloat rads = atan(height/width);
return radiansToDegrees(rads);
- //degs = degrees(atan((top - bottom)/(right - left)))
}
CGFloat angleBetweenLines(CGPoint line1Start, CGPoint line1End, CGPoint line2Start, CGPoint line2End) {
-
CGFloat a = line1End.x - line1Start.x;
CGFloat b = line1End.y - line1Start.y;
CGFloat c = line2End.x - line2Start.x;
CGFloat d = line2End.y - line2Start.y;
-
CGFloat rads = acos(((a*c) + (b*d)) / ((sqrt(a*a + b*b)) * (sqrt(c*c + d*d))));
-
return radiansToDegrees(rads);
}