finding a point on an ellipse circumference which is inside a rectangle having center point, height

Posted by Shlomi Assaf on Stack Overflow See other posts from Stack Overflow or by Shlomi Assaf
Published on 2010-05-06T12:52:15Z Indexed on 2010/05/06 12:58 UTC
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geometry

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.NET

Hi all.

I have a rectangle in .NET in which I draw an ellipse.

I know the width, height and center point of that rectangle.

Ofcourse the cetner point of the rectangle is also the center point of the ellipse.

I know how to calculate a point on a circle, however I have no clue about an ellipse.

I have those parameters and an angle, i need the point on the ellipse, can someone post the formula?

I saw somewhere you need to calculate 2 points in which 2 raduises will go, the sum of the radiuses will be fixed and they will change in size accordingly.

I dont know how to do that, I only have the rectange height, width and center point and ofcourse the angle I wish to find the point at.

thanks for any help Shlomi

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