Sean,
Thank you. I had Googles a few solutions (but missed this one:
https://math.stackexchange.com/questions/2724537/finding-the-clear-spacing-distance-between-two-rectangles
- which I really like so thanks!) but I say that some were solving for
center distances and some for edges and some for other things, which is
what in part led to my original questions of:
What is the most common way people think of the distance between 2
rects? I suppost my question presumes there is a "most' common way or a
'more' common way that some others of the many you mentioned.
From my Googling and this poll, I am seeing a slight favorite of people
most commonly thinking of the distance between rects as being between
the nearest edges or vertices.
On 2/15/2021 6:21 PM, Sean Cole (Pi) via use-livecode wrote:
Hi,
No point reinventing the wheel..
Lots of other way. Distance between two near or far edges. distance between
corners, distance to centers, or area median, area of space between,
overal usage area minus the area used by the two rectangles. Math is fun.
Keeps us in business.
Google (distance between two rectangles):
https://stackoverflow.com/questions/4978323/how-to-calculate-distance-between-two-rectangles-context-a-game-in-lua
https://math.stackexchange.com/questions/2724537/finding-the-clear-spacing-distance-between-two-rectangles
https://www.wyzant.com/resources/answers/583373/finding-the-distance-between-two-rectangles
https://www.programmersought.com/article/44554760896/
etc
On Mon, 15 Feb 2021 at 22:53, Paul Dupuis via use-livecode <
use-livecode@lists.runrev.com> 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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