[vtkusers] Ray casting and intersection point

[wingsneak]

Hi David, 

thank you for your quick reply.. but i still do not understand..

how i turn the normal into a line? and would the normal be extending into
the right direction (towards the skin surface)?

currently this is my algorithm:

double pickernormal[3];

picker->GetPickPosition()      :: point picked on the skull surface
pickernormal->GetPickNormal() :: when i print pickernormal out, i get this:
-2.8934, 0.67394, -3.09273

does pickernormal represent the normal at the point i picked from the skull
surface?

if so, could you point out to me what should the first 3 parameters (p1, p2
and tolerance) of 
IntersectWithLine(p1, p2, tolerance, t, x, pcoords, subId) be?

also what is the tolerance parameter? 

--
View this message in context: http://vtk.1045678.n5.nabble.com/Ray-casting-and-intersection-point-tp5567706p5570215.html
Sent from the VTK - Users mailing list archive at Nabble.com.