Find X given Y on a circle
Blitz3D Forums/Blitz3D Beginners Area/Find X given Y on a circle
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| Hi, I'm working on a radar system for a space game, and I'm stumpted on something that I can't seem to find on teh internets (that was on purpose). How to I find X on a circle's boundary given Y (or the other way around) given the diameter (or radius) of the circle? |
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| x=sqrt(r^2-y^2) y=sqrt(r^2-x^2) |
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Or more generalised, for circle center (a, b) and radius r (slightly optimized, by removing powers):x=a+sqrt((r*r)-(y-b)*(y-b)) |
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| For every X there are 2 Y's and vica-versa. |
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| snapping to the nearest. happy? |
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| Overjoyed ;) |
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