Using Shape:computeAABB to get bounding box

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Yell0w
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Using Shape:computeAABB to get bounding box

Post by Yell0w » Thu Aug 29, 2013 8:59 am

Hello good sirs and madams!

Im trying to figure out if a rotated box is fully inside another box using the Shape:computeAABB function to get the bounding box coordinates.
My problem is, what are the translated X and translated Y values? Can someone supply a small snippet please? I couldnot find any other forum entries regarding compute AABB (ALSO THAT FuNCTION NAME!)
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RedHot
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Re: Using Shape:computeAABB to get bounding box

Post by RedHot » Thu Aug 29, 2013 9:15 am

Yell0w wrote:Hello good sirs and madams!

Im trying to figure out if a rotated box is fully inside another box using the Shape:computeAABB function to get the bounding box coordinates.
My problem is, what are the translated X and translated Y values? Can someone supply a small snippet please? I couldnot find any other forum entries regarding compute AABB (ALSO THAT FuNCTION NAME!)
Im trying to figure out if a rotated box is fully inside another box using the Shape:computeAABB function to get the bounding box coordinates.
Rotated box is always within BBox, that's the usual idea of a bounding box.
My problem is, what are the translated X and translated Y values
What do you actualy understand by saying "X and Y" ?

Shape:computeAABB returns local shape coords. You can get the world coords using "YourBody:getWorldPoints(YourShape:computeAABB)" , http://love2d.org/wiki/Body:getWorldPoints

And the function name is perfectly fine. AABB is a term used very often in simulations.

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Re: Using Shape:computeAABB to get bounding box

Post by Yell0w » Thu Aug 29, 2013 9:29 am

Okay then i misunderstood the function a bit, even tho it will work just fine. What i was really trying to do was finding the four corners coordinates from a rounded rectangle.

I have never used AABB, before and im sorry i did not know it was common knowledge. (wiki: axis-aligned bounding box (AABB).)

Still i dont know what the transformed prefix is supposed to mean, is it just a normal x,y integer or is it transformed from the left back foot of a cow?

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Re: Using Shape:computeAABB to get bounding box

Post by RedHot » Thu Aug 29, 2013 10:04 am

This part remains ambiguous to me :
Still i dont know what the transformed prefix is supposed to mean
Can you rephrase it?

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