I have the following issue:

        I am making a "gas guage" based on a percentage.
                - a 180 degree arc is created
                - the range will be 0 to n (undetermined ammount)
                - there will be x number of entries
                - the needle will pount to a a percentage 
                  for (int)floor((x / n) * 100)

        The issue is, I have the starting pt for the needle (imagefilledarc 
        needs the center of the 'circle' as the starting pt, which is where 
        the needle will start too), but how would I get the x|y coordinates 
        for the end of the needle based on a perentage of a half-circle 
        (180 degree arc)?
Appreciate any clues or ideas.

Michael Geier

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