Messages

1

Graphics / Re: Сoordinates of all vertices

« on: December 10, 2014, 10:20:12 pm »

getPoint returned local coordinates, I need global.

2

Graphics / Сoordinates of all vertices

« on: December 10, 2014, 09:56:59 pm »

Hi, I have RectangleShape, how to get the global coordinates of all vertices(top-left,top-right,bottom-left,bottom-right) after rotate?
For example

  shape.setOrigin(size_a/2.f, size_b/2.f);
  shape.setPosition(windowWidth / 2, windowHeight / 2);
  shape.setSize({ size_a, size_b });
  shape.setRotation(10);
 

How to get coordinates of the all vertices?
Thanks.

3

Graphics / Re: Rotate the shapes relative to center

« on: October 21, 2014, 12:02:52 pm »

Thank You so much, in my first post all right, i was wrong.

4

Graphics / Re: Rotate the shapes relative to center

« on: October 21, 2014, 10:46:29 am »

Here is my full code:

const int windowWidth = 500;
const int windowHeight = 400;

class Box
{
public:
        RectangleShape shape;

        Box(float size_a, float size_b)
        {
                shape.setFillColor(Color::Blue);
                shape.setPosition(100, 100);
                shape.setSize({ size_a, size_b });
                shape.setOutlineThickness(2);
                shape.setOutlineColor(Color::Black);
        }

};

int main()
{
        Box box(200,150);

        RenderWindow window(VideoMode(windowWidth, windowHeight), "Box");
        window.setFramerateLimit(60);

        while (window.isOpen())
        {
                Event event;
                while (window.pollEvent(event))
                {
                        if (event.type == Event::Closed)
                                window.close();
                }

                window.clear(Color::White);
                window.draw(box.shape);
                window.display();

        }
        return 0;
}
 

Get the following:


If I change constructor:

Box(float size_a, float size_b)
        {
                shape.setOrigin(100, 100);
                shape.setFillColor(Color::Blue);
                shape.setPosition(150, 150);
                shape.setSize({ size_a, size_b });
                shape.setOutlineThickness(2);
                shape.setOutlineColor(Color::Black);
               
                shape.setRotation(20);
        }
 

Produce this:

Top-left corner moving coordinates (x-100,y-100), and rotate relative to top-left corner.

5

Graphics / Rotate the shapes relative to center

« on: October 20, 2014, 11:06:21 pm »

Hi, I have RectangleShape, how to rotate it relative to center.
I have tried the following:

shape.setOrigin(size_a/2, size_b/2); //size_a, size_b - size of shape
shape.setPosition(100, 100);
shape.setSize({ size_a, size_b });
shape.setRotation(20);
 

However, rotate relative top-left corner. Am I doing something wrong?