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aggiunte conversione di coordinate

This commit is contained in:
ganovelli 2005-01-05 13:25:29 +00:00
parent 8e5824a2bc
commit c2fb300d85
1 changed files with 42 additions and 18 deletions
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60
vcg/math/camera.h
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@ -23,6 +23,9 @@
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.12 2004/12/16 11:22:30 ricciodimare
*** empty log message ***
Revision 1.11 2004/12/16 11:21:03 ricciodimare
*** empty log message ***
@ -122,36 +125,57 @@ public:
/// project a point from space 3d (in the reference system of the camera) to the camera's plane
/// the result is in absolute coordinates
inline vcg::Point2<S> Project(const vcg::Point3<S> & p);
inline vcg::Point2<S> LocalToViewport(const vcg::Point2<S> & p);
inline vcg::Point2<S> LocalTo_0_1(const vcg::Point2<S> & p);
inline vcg::Point2<S> LocalTo_neg1_1(const vcg::Point2<S> & p);
inline vcg::Point3<S> UnProject(const vcg::Point2<S> & p);
};
/// project a point in the camera plane
/// project a point in the camera plane (in space [-1,-1]x[1,1] )
template<class S>
vcg::Point2<S> Camera<S>::Project(const vcg::Point3<S> & p){
S tx = p.X();
S ty = p.Y();
S qx,qy;
vcg::Point2<S> q;
vcg::Point2<S> q = Point2<S>( p[0],p[1]);
// nota: per le camere ortogonali viewportM vale 1
if(!IsOrtho())
{
tx *= f/p.Z();
ty *= f/p.Z();
q[0] *= f/p.Z();
q[1] *= f/p.Z();
qx = tx;
qy = ty;
//undistorted_to_distorted_sensor_coord(tx,ty,qx,qy);
q[0] = qx/s.X()+c.X();
q[1] = qy/s.Y()+c.Y();
//q[0] = 2*q[0]/( s.X() * viewport[0]);
//q[1] = 2*q[1]/( s.Y() * viewport[1]);
}
else
{
q[0] = tx/(s.X()*viewportM)+c.X();
q[1] = ty/(s.Y()*viewportM)+c.Y();
}
//else
//{
// q[0] = tx/(s.X()*viewportM)+c.X();
// q[1] = ty/(s.Y()*viewportM)+c.Y();
//}
return q;
}
template<class S>
vcg::Point2<S> Camera<S>::LocalToViewport(const vcg::Point2<S> & p){
vcg::Point2<S> ps;
ps[0] = p[0]/s.X()+c.X();
ps[1] = p[1]/s.Y()+c.Y();
return ps;
}
template<class S>
vcg::Point2<S> Camera<S>::LocalTo_0_1(const vcg::Point2<S> & p){
vcg::Point2<S> ps;
ps[0] = ( p[0]/s.X() + c.X() ) / (ScalarType) viewport[0];
ps[1] = ( p[1]/s.Y() + c.Y() ) / (ScalarType) viewport[1];
return ps;
}
template<class S>
vcg::Point2<S> Camera<S>::LocalTo_neg1_1(const vcg::Point2<S> & p){
vcg::Point2<S> ps;
ps[0] = 2 * p[0] / ( s.X() * viewport[0] );
ps[1] = 2 * p[1] / ( s.Y() * viewport[1] );
return ps;
}
/// unproject a point from the camera plane
template<class S>
vcg::Point3<S> Camera<S>::UnProject(const vcg::Point2<S> & p){