I think the natural definition would be distance between the respective boundaries; i.e., edge
to edge distance, but also the distance between corners. That is, if any of r1's corners is d
distance from any one of r2's closest corners.
On 2/15/21 4:53 PM, Paul Dupuis via use-livecode wrote:
This is an Off Topic informal poll of sorts, but related to LiveCode as I am writing a LiveCode
expression to determine if 2 arbitrary rectangles (r1,r2) are with some distance d (in px) of
one another. In considering this problem, the questions comes up: What is meant by rectangles
being within a distance d of one another. What is the 'd' measured from?
center to center? Easiest is many ways, but I don't think this is what most
people would think of.
adjacent edge to adjacent edge? This is harder (I think), but I think this is what more people
intuitively think of. To me, implicit in the visual concept of 2 rects being within some
distance of one another is that they are NOT overlapping, but that some gap exists between the
nearest adjacent edges?
Something else? What does 2 rects being 'within' d pixels of one another mean to you, if not
one of the two above options?
Maybe there is a exact mathematical definition of what 2 rectangles being within distance d of
one another is, but, if there is, I am unfamiliar with it.
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Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
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