A quick questions....Cause I stink at math.

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Newcomers DBPro Corner / A quick questions....Cause I stink at math.

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mikewhl

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Joined: 19th Jul 2010

Location: Columbus,Ohio

Posted: 26th Aug 2010 17:29

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First question....
If I use this to find distance:

+ Code Snippet

function object_distance(a,b)  `Get distance
    d#=(object position x(a)-object position x(b))^2+(object position y(a)-object position y(b))^2+(object position z(a)-object position z(b))^2
ENDFUNCTION d#

I posiiton object one at 520,0,520 then object 2 at 500,0,500, I get a distance of 800. Why is d# so large of a number?

Mike

some cool stuff someone else said here

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Sixty Squares

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Joined: 7th Jun 2006

Location: Somewhere in the world

Posted: 26th Aug 2010 17:45

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That's actually the SQUARE of the distance. You need to get the SQUARE ROOT of that for the actual distance.

Lots of people leave it in squared form and just square the distances they're checking against though since the SQUARE ROOT (SQRT) command can be slow if you're checking the distance a lot.