How can I draw a canvas arc given centre, radius, start angle and finish angle?
http://wiki.flightgear.org/Canvas_Nasal ... SmallCCWTo shows how to draw an arc between two points, but does not seem very helpful. All the examples appear to be at 90 degree intervals, and everything seems to be in cartesian co-ordinates. For an arc I would like to set centre point, radius and angle instead with polar coordinates.
I need to be able to vary the angle at run-time.
TIA
Alan