Re: NSUnionRect
Re: NSUnionRect
- Subject: Re: NSUnionRect
- From: Ali Ozer <email@hidden>
- Date: Fri, 2 Mar 2007 23:37:10 -0800
As documented, http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Miscellaneous/Foundation_Functions/Reference/reference.html#/
/apple_ref/c/func/NSUnionRect. Basically a 0 by 0 rectangle is
considered to be non-existent for purposes of unioning; this enables a
number of rect operations to be performed in tandem.
Returns the smallest rectangle that completely encloses both aRect
and bRect. If one of the rectangles has 0 (or negative) width or
height, a copy of the other rectangle is returned; but if both have
0 (or negative) width or height, the returned rectangle has its
origin at (0.0, 0.0) and has 0 width and height.
Ali
Begin forwarded message:
From: Gordon Apple <email@hidden>
Date: March 2, 2007 11:23:50 PST
To: email@hidden
Subject: NSUnionRect
The list search is dead tonight.
What's with NSUnionRect? I am getting a result of (0,0,0,0) when
evaluating NSUnionRect with (0,600,0,0) and (400,600,0,0). The
correct
result should be (0,600,400,0). I was trying to use it to compute the
bounding rect of a polygon. I wrote my own to make it work right.
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
| References: | |
| | >NSUnionRect (From: Gordon Apple <email@hidden>) |