Hi, The issue is with the float data type, it's not big enough to contain all the significant digits.
If you try your test case on windows you'll get the same result. Rolf On Tue, Apr 17, 2012 at 6:18 AM, ademar <[email protected]> wrote: > In the mean time I'm using the following extension method as workaround > > public static bool ContainsEx (this RectangleF rectangle,RectangleF other) > { > return rectangle.Contains(other.Left, other.Top) > && rectangle.Contains(other.Right,other.Top) > && rectangle.Contains(other.Left, other.Bottom) > && rectangle.Contains(other.Right,other.Bottom); > } > > On Mon, Apr 16, 2012 at 10:34 PM, ademar <[email protected]> > wrote: > > Hi, > > > > I have found what appears to be a (floating) bug in RectangleF. > > Consider the following code > > > > var intersection = RectangleF.Intersect(bigRectangle,subRectangle); > > > > and the following values (this values i'm copying from a debugging > session) > > > > bigRectangle: {{X=0,Y=0,Width=320,Height=220}} > > subRectangle: {{X=142.9166,Y=139.0106,Width=33.29966,Height=35.14964}} > > > > we get > > > > intersection:{{X=142.9166,Y=139.0106,Width=33.29965,Height=35.14964}} > > > > Note that subRectangle and intersection differ in the last decimal of > > the Width property. > > > > From this follows that RectangleF.Contains(bigRectangle,subRectangle) > > returns the wrong value. Here is the code of RectangleF.Contains for > > reference. > > > > public bool Contains (RectangleF rect) > > { > > return rect == RectangleF.Intersect (this, rect); > > } > > > > Am I missing something here ? It may be that this was working properly > > and stopped working after one of the recent monotouch upgrades. > > > > Thanks, > > > > -- > > Ademar Gonzalez > > 647-891-3606 > > http://ademar.name > > > > -- > Ademar Gonzalez > 647-891-3606 > http://ademar.name > _______________________________________________ > MonoTouch mailing list > [email protected] > http://lists.ximian.com/mailman/listinfo/monotouch >
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