Parameters
- x
- Center's X coordinate
- y
- Center's Y coordinate
- z
- Center's Z coordinate
- rx
- Radius X
- ry
- Radius Y
- startAngleInRadians
- Start angle in radians
- endAngleInRadians
- End angle in radians
- polarAngles
- When True the two previous parameters represent angles from the X-axis, otherwise they represent parameters on the ellipse.