There are a lot of different kinds of patches available, beyond just the simple circle. They are as follows:
- The circle, in which you can set the center and the radius.
- An arc, which is an elliptical arc, that takes a section of an ellipse that you specify using the width and the height. We can also change the angle that that ellipse is placed at and then, using a pair of angles, theta 1 and theta 2, we set how much of that ellipse is filled.
- A wedge, wherein we get an additional argument, called the width, which explains what fraction of that circle will be shown.
- An arrow, which specifies the position of the tail using the x and y coordinates and where that arrow will point using dx and dy