plot of 3d arc

I have three points describing an arc of a circle in three-dimensions.

• center point p0=(x0,y0,z0)
• starting point p1=(x1,y1,z1)
• end point p2=(x2,y2,z2)

I want plot the arc for

• case where I know (x0,y0,z0, x1,y1,z1, x2,y2,z2)
• case where I know (x0,y0,z0, x1,y1,z1, z2) unknown is (x2 y2)

Answer 1

[Doug Hull]

Once you know representative points on the arc, you can use

plot3(x,y,z)

The tricky bit is generating the vectors x,y,z.

Knowing only the z value for an end point leaves the problem undefined. Actually, even where you know the endpoints entirely, there are two arcs.

[satish sahu]

thanks for comment..

but I am unable to find the equation of arc and representative point on arc...

can u help me to find the representative point of arc .