Cylinder Between 2 Points

Genaralization of the matlab function

[X,Y,Z]=cylinder(R,N). [X,Y,Z]=cylinder2P(R,N,r1,r2);surf(X,Y,Z);

generates a 3D cylinder surface along the axis specified between the points r1 and r2 (which is along the z-axis for "cylinder").

r1=[x1 y1 z1];r2=[x2 y2 z2]; and R, the radius could be a parameterized using a vector R(i) instead of a scalar (as for cylinder). Useful for creating advanced molecule images for example.