For an arbitrary rectangle you'll have to do some math. Of the top of my head, here's a way to do it:
First you'll need to be familiar with vector math, including dot products: http://mathworld.wolfram.com/DotProduct.html So, pick an arbitrary point on the rectangle and get the vectors for the 2 sides. So, for a rectangle at: p0----------p1 | | | x | | | p2----------p3 calculate: v1 = p1 - p0 // This is the vector from p0 to p1 v2 = p2 - p0 // This is the vector from p0 to p2 vX = x - p0 // This is the vector from p0 to your point Now, do: d1 = dot(vX, v1) d2 = dot(vX, v2) Now, if the point is in the rectangle then: 0 <= d1 <= 1 0 <= d2 <= 1 That is, assuming I got my math right (doing this all in my head w/o any paper). Try that. And if anyone sees any problems with my math, let me know. -Andy On 12/21/06, slangeberg <[EMAIL PROTECTED]> wrote:
> > The rectangle is not parallel to the axes, instead its rotating all the > time. > I don't believe that using the bounds of a clip will account for any rotations.-Scott -Scott On 12/21/06, Janis Radins <[EMAIL PROTECTED]> wrote: > > Check whteher your point is iniside boundries by something like this: > if(point.x > rect.minX && point.x < rect.maxX && point.y > rect.minY && > point.Y < rect.maxY) > > guess something like that should work. > > 2006/12/21, Oliver Müller <[EMAIL PROTECTED]>: > > > > Hi all, > > > > I'm looking for a mathematic way to check if a point resides within a > > rectangle. > > The rectangle is not parallel to the axes, instead its rotating all the > > time. > > It's not a movieclip so hitTest is out of the question. > > Any suggestions how I could solve this problem ? > > > > cheers, > > olli > > _______________________________________________ > > [email protected] > > To change your subscription options or search the archive: > > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > > > Brought to you by Fig Leaf Software > > Premier Authorized Adobe Consulting and Training > > http://www.figleaf.com > > http://training.figleaf.com > > > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > -- : : ) Scott _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
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