From: Robert Mela <rmela@...>
Date: 2006-06-08T23:05:38+09:00
Subject: Re: Easy question

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But doesn't that result in an iteration over the points array every time 
we want to get min/max values?

Farrel Lifson wrote:
> You could have functions that query the points in the system instead
> of keeping track as you add them.
>
> def min_x
>  (@points.min{|a,b| a.x <=> b.x}).x
> end
>
> def min_y
>  (@points.min{|a,b| a.y <=> b.y}).y
> end
>
> def max_x
>  (@points.max{|a,b| a.x <=> b.x}.x
> end
>
> def max_y
>  (@points.min{|a,b| a.y <=> b.y}).y
> end
>


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