box-intersect-p

Arguments: box1 box2

Returns true if the argument boxes intersect and returns nil if they do not intersect. Boxes which touch just on their edges or at the vertices are not considered to intersect. Thus,

(make-box 10 10 20 20)

does not intersect

(make-box 20 20 30 30)

but does intersect

(make-box 19 19 30 30)

See the description of the box class for general information on boxes.

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Created 2019.8.20.