How to get world coodinates of sf::ConvexShape points?

[buynnnmmm1]

I try to use .getPoint() of sf::ConvexShape, but I got local coodinate of the point.

I roate sf::ConvexShape, but I get same value.

How can I get world coodinates of sf::ConvexShapes points?

[buynnnmmm1]

I read api document of sf::ConvexShape, and I notice the getTransform() method.
I got world coodinats with sf::ConvexShape::getTransform.

sf::ConvexShape a;
sf::Transform t=a.getTransform();
sf::Vector2f p=t.transformPoint(a.getPoint(0));