Re: Tracking rectangles and bezier paths (Wagner Truppel)
Re: Tracking rectangles and bezier paths (Wagner Truppel)
- Subject: Re: Tracking rectangles and bezier paths (Wagner Truppel)
- From: Dave Budde <email@hidden>
- Date: Sat, 9 Sep 2006 19:43:49 -0700
Wagner, thanks for all that information. Unfortunately (or
fortunately depending on your point of view) I already know how to
compute the bezier function and see an approach to get what I want.
But I was trying to actually avoid writing any code to do this if in
fact there was some built-in mechanism that works like tracking
rects. Apparently there isn't so either I'll do the brute force or
just implement control point tracking which is trivial.
If anyone from Apple is monitoring this, please implement a tracking
curve mechanism in a future version.
On Sep 9, 2006, at 7:24 PM, email@hidden wrote:
a) Upon checking the documentation for NSBezierPath <http://=20
developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/=20
Classes/NSBezierPath_Class/NSBezierPath_Class.pdf>, I learned of
the =20
method -containsPoint:, which "Returns a Boolean value indicating =20
whether the receiver contains the specified point". Maybe that's
all =20
you need, that is, check whether the path contains the mouse point =20
and, if so, redraw the path with a thicker stroke and/or a
different =20
color, so as to highlight the path. The documentation is actually
not =20=
.....
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