Re^4: Checking if squares intersect

But wouldn't the squares intersect if I changed to < to <= ?

Example, if x2 <= x3 then the statement is true if x2 intersects with x3 since x2 is the lower right corner and x3 is the upper left corner.

And yes, the x4 is missing, it was a typo.

Comment on Re^4: Checking if squares intersect

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Re^5: Checking if squares intersect by ikegami (Patriarch) on Oct 14, 2009 at 21:13 UTC
No. Adjacent squares don't intersect. `x1 x2=x3 x4 +---------+ y1 \| +---------+ y3 \| \| \| \| \| \| \| \| \| +---------+ \| y2 +---------+ y4` [download]	[reply] [d/l]
Re^6: Checking if squares intersect by QM (Parson) on Oct 15, 2009 at 02:49 UTC
If two lines can intersect in a point, can't two squares intersect in a point or a line? -QM -- Quantum Mechanics: The dreams stuff is made of	[reply]
Re^6: Checking if squares intersect by Anonymous Monk on Oct 15, 2009 at 14:43 UTC
Adjacent squares would be side by side, in the above the edge of each square intersect. So x2=x3 means that the edge of one square intersects with the edge of the other...	[reply]
Re^7: Checking if squares intersect by ikegami (Patriarch) on Oct 20, 2009 at 01:17 UTC
From a CS's perspective, at least in the era where I dealt with this, the bot right corner is usually just beyond the square itself.	[reply]