You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
763 B
C++
28 lines
763 B
C++
// This code is in the public domain -- castanyo@yahoo.es
|
|
|
|
#include "Plane.h"
|
|
#include "Plane.inl"
|
|
#include "Matrix.inl"
|
|
|
|
namespace nv
|
|
{
|
|
Plane transformPlane(const Matrix & m, const Plane & p)
|
|
{
|
|
Vector3 newVec = transformVector(m, p.vector());
|
|
|
|
Vector3 ptInPlane = p.offset() * p.vector();
|
|
ptInPlane = transformPoint(m, ptInPlane);
|
|
|
|
return Plane(newVec, ptInPlane);
|
|
}
|
|
|
|
Vector3 planeIntersection(const Plane & a, const Plane & b, const Plane & c)
|
|
{
|
|
return dot(a.vector(), cross(b.vector(), c.vector())) * (
|
|
a.offset() * cross(b.vector(), c.vector()) +
|
|
c.offset() * cross(a.vector(), b.vector()) +
|
|
b.offset() * cross(c.vector(), a.vector()));
|
|
}
|
|
|
|
} // nv namespace
|