formula to get the coordinates of an ellipse

[sunkingac]

Hai all,

In my project in VC++, i am need of getting the coordinates of an ellipse.

Please help me ,

With thanks
arun a.c.

[DeepButi]

sunkingac,
the formula of an ellipse is (x**2/a**2)+(y**2/b**2)=1 where a is semi-major -radius and b semi-minor-radius, so

x=a*sqr(1-y**2/b**2)

but ... what do you need?

Hope it helps

[yiannakop]

Originally posted by DeepButi
the formula of an ellipse is (x**2/a**2)+(y**2/b**2)=1 where a is semi-major -radius and b semi-minor-radius, so
x=a*sqr(1-y**2/b**2)

This will give u half the ellipse, u also need to calculate the negative values of x:
x=a*sqr(1-y**2/b**2)
and
x=-a*sqr(1-y**2/b**2)
and ofcourse some limitations:
--> abs(x)<=a
--> abs(y)<=b
Regards,
Theodore