Author Topic: Drawing an Ellipse (Read 23596 times)

Mr. X · « **on:** October 18, 2008, 07:04:31 pm »

Hello,
Is it possible to Add a method to the sf::Shape class for drawing an ellipse, or change the circle function, so that it could draw ellipses?

bullno1 · « **Reply #1 on:** October 19, 2008, 07:27:21 am »

Isn't an ellipse just a scaled circle?

Mr. X · « **Reply #2 on:** October 19, 2008, 10:47:09 am »

Yes,
but if I try to scale it, it is just moved by that factor...

gsaurus · « **Reply #3 on:** October 25, 2008, 07:02:31 pm »

Quote from: "Mr. X"

Yes,
but if I try to scale it, it is just moved by that factor...

Use setCenter to center in the circle center before scale

Mr. X · « **Reply #4 on:** October 26, 2008, 09:54:03 am »

Hello,
it doesn't work. Also when I center the circle before scaling, it is only moved by this factor.

Noegddgeon · « **Reply #5 on:** December 21, 2010, 09:51:45 am »

When setting the center of the circle, it's relative to the top left coordinates of the circle, not the whole window. I was trying to figure this out and made the mistake of assuming otherwise, but I was able to figure out, in case anyone else looks at this thread in the future and wonders the same thing.

Code: [Select]


sf::Shape myEllipse = sf::Shape::Circle(200, 200, 60, sf::Color(255, 0, 0));
myEllipse.SetCenter(30, 30);
myEllipse.SetScale(2, 1);

Instead of writing the SetCenter function like...

Code: [Select]


myEllipse.SetCenter(230, 230);

Solves the problem for me when scaling the circle.