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  get rotated box size  (Read 2003 times)
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Offline JNiNJA

Junior Newbie

Exp: 4 years

Whatever you do, do it in your way.

« Posted 2012-03-22 10:28:25 »

i have tried anything but my math is suck so i can't figure out how to do this.
i have a box that have X, Y, X2, Y2 and rotation.
i trying to get the size outside the box when its rotated.
like this...

any ideas ?
Offline Roquen
« Reply #1 - Posted 2012-03-22 11:03:18 »

It's simply the min/max of the rotated/translated vertices.
Offline ReBirth
« Reply #2 - Posted 2012-03-22 13:32:35 »

When rotation is CW, take pair of left up and right buttom points.
When rotation is CCW, take pair of left buttom and right up points.
That pairs, have new position when rotated, which can be calculated by trigonometry. Then calculated their distance.

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