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Author Topic: Drawing an Ellipse  (Read 17122 times)

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Mr. X

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Drawing an Ellipse
« 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

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Drawing an Ellipse
« Reply #1 on: October 19, 2008, 07:27:21 am »
Isn't an ellipse just a scaled circle?

Mr. X

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Drawing an Ellipse
« 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

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Drawing an Ellipse
« 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
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Mr. X

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Drawing an Ellipse
« 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

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Drawing an Ellipse
« 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.
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