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Added ViewLineFromModel

This commit is contained in:
Federico Ponchio 2004-05-14 03:15:40 +00:00
parent 8381f2f5a0
commit bc4db34d6e
1 changed files with 24 additions and 7 deletions
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31
wrap/gui/view.h
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@ -24,6 +24,9 @@
History
$Log: not supported by cvs2svn $
Revision 1.6 2004/05/12 20:55:18 ponchio
*** empty log message ***
Revision 1.5 2004/05/07 12:46:08 cignoni
Restructured and adapted in a better way to opengl
@ -53,7 +56,7 @@ y is upward!
#include <vcg/space/plane3.h>
#include <vcg/space/line3.h>
#include <vcg/math/matrix44.h>
#include <gl/glew.h>
#include <GL/glew.h>
namespace vcg {
/**
@ -68,10 +71,13 @@ public:
void SetView();
Point3<T> Project(const Point3<T> &p) const;
Point3<T> UnProject(const Point3<T> &p) const;
Point3<T> ViewPoint();
Point3<T> ViewPoint() const;
/// Return the plane perpendicular to the view axis and passing through point P.
Plane3<T> ViewPlaneFromModel(const Point3<T> &p);
/// Return the line of view passing through point P.
Line3<T> ViewLineFromModel(const Point3<T> &p);
/// Return the line passing through the point p and the observer.
Line3<T> ViewLineFromWindow(const Point3<T> &p);
@ -107,7 +113,7 @@ template <class T> void View<T>::SetView() {
}
template <class T> Point3<T> View<T>::ViewPoint() {
template <class T> Point3<T> View<T>::ViewPoint() const {
Matrix44<T> mi=model;
Invert(mi);
return mi* Point3<T>(0, 0, 0);
@ -116,11 +122,22 @@ template <class T> Point3<T> View<T>::ViewPoint() {
template <class T> Plane3<T> View<T>::ViewPlaneFromModel(const Point3<T> &p)
{
Point3<T> vp=ViewPoint();
Plane3<T> pl; // plane perpedicular to view direction and passing through manip center
pl.n=(vp-p);
pl.d=pl.n*p;
Plane3<T> pl; // plane perpedicular to view direction and passing through manip center
pl.n=(vp-p);
pl.d=pl.n*p;
return pl;
}
// Note that p it is assumed to be in model coordinate.
template <class T> Line3<T> View<T>::ViewLineFromModel(const Point3<T> &p)
{
Point3<T> vp=ViewPoint();
Line3<T> line;
line.SetOrigin(vp);
line.SetDirection(p - vp);
return line;
}
// Note that p it is assumed to be in window coordinate.
template <class T> Line3<T> View<T>::ViewLineFromWindow(const Point3<T> &p)
{
@ -173,4 +190,4 @@ template <class T> Point3<T> View<T>::WindowCoordToNormDevCoord(const Point3<T>
}//namespace
#endif
#endif