Question

Basically, I want to draw a circle using Graphics, but instead of using integers to position it, I would like to use double values instead.

Ideally:

g.drawOval(0.5, 0.5, 50, 50);

Any help is greatly appreciated! Thanks in advance!

Thanks for all the help guys, but ive figured a way out, my dy variable was set at 1, so if i wanted dx to half of that of dy, it would be impossible, instead i just changed dy to 2 and dx to 1! Foolish me!

Answer 1

The only valid way of doing this is to use an Ellipse2D.Double shape and pass it to the draw(Shape) method of a Graphics2D instance. For the best results, enable anti-aliasing:

public void yourDrawingMethod(Graphics gg)
{
    /* Cast it to Graphics2D */
    Graphics2D g = (Graphics2D) gg;

    /* Enable anti-aliasing and pure stroke */
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);

    /* Construct a shape and draw it */
    Ellipse2D.Double shape = new Ellipse2D.Double(0.5, 0.5, 50, 50);
    g.draw(shape);
}

You can use Graphics2D.fill(Shape) as well.