Draw a great circle of a sphere

Hi,
I want to draw the great circle of a sphere (radius R, center (0,0,0) ), between 2 given points: P1(x1, y1, z1), P2(x2, y2, z2).
Do you have any general algorithm for that?
Do you know where can I get more information about this subject?
Thank you.
[288 byte] By [Gal1234] at [2007-11-18 17:45:46]
# 1 Re: Draw a great circle of a sphere
I know what the great circle of a sphere is, but what do you mean by "between 2 given points"? Does it mean that the circle has to go through those 2 points? Or that the circle has to pass somewhere between those 2 points?
sleeping at 2007-11-10 3:52:01 >
# 2 Re: Draw a great circle of a sphere
Hello,

I mean that the 2 given points define the great circle.

The great circle passes though those points.

Thanks.
Gal1234 at 2007-11-10 3:53:01 >