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From: wolf@alesi.cipl.uiowa.edu (Mike Wolf)
Newsgroups: comp.sys.mac.games,comp.sys.mac.programmer
Subject: Re: Finding distances on map sheets
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Date: 16 Nov 90 18:22:12 GMT
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Organization: Cardiovascular Image Processing Laboratory, U of Iowa
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I don't see any trick here. When using hex or squares or what not.
The distanc you want is most likely from the center of you sector 
unit, correct?  Why would you want to take the distance from one 
side of a hex to another, that would be just like going from the
center of the first one to the center of the second hex.

Anyway....simple math will give you the width of your hex, from
opposing sides (not vertices mind you).

In your code for finding the distance you could use the starting
pixel point and the end pixel point to find your dX and dY.

From the width of the hex you got you can tell how many pixels it
took to cross that width, then you can scale this to what ever
your map is and use some simple algebra to get the distance
between the pixels (just find the length of the hypotenuse of the
triangle created with your two points).

If you cannot follow me very well, let me know and I will whip
up some simple sample code (given that you tell me what you are
exactly wanting and trying to do)

Michael

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