I have the following issue:
I am making a "gas guage" based on a percentage.
ie.
- 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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