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Burr · 01-07-2004, 09:53 AM

I'm only a beginner programmer, but I thought I'd mention that you only have to input or store three points to define a square (or any other rectangle). The fourth point can be derived from the other three. Example: for given coordinates (20,15), (40,15), and (40,35), the fourth point must be (20,35) for the object to be rectangular.

I suppose you might use the redundancy for error checking, but getting rid of the inconvenience might be worth the occassional error, since you will likely be proofreading/editing each area anyway.

01-07-2004, 09:53 AM	#2
Burr Member Join Date: Apr 2002 Posts: 123	I'm only a beginner programmer, but I thought I'd mention that you only have to input or store three points to define a square (or any other rectangle). The fourth point can be derived from the other three. Example: for given coordinates (20,15), (40,15), and (40,35), the fourth point must be (20,35) for the object to be rectangular. I suppose you might use the redundancy for error checking, but getting rid of the inconvenience might be worth the occassional error, since you will likely be proofreading/editing each area anyway.