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added severla comments 

reimplemented operator ()
This commit is contained in:
Paolo Cignoni 2006-08-23 15:35:36 +00:00
parent 7810ccc68e
commit 837f3482f5
1 changed files with 32 additions and 8 deletions
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40
vcg/simplex/vertex/distance.h
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@ -20,6 +20,11 @@
* for more details. *
* *
****************************************************************************/
// marco :
// comments
// corrected bug
/****************************************************************************
History
@ -38,19 +43,38 @@ namespace vcg {
class PointDistanceFunctor {
public:
template <class VERTEXTYPE, class SCALARTYPE>
inline bool operator () (const VERTEXTYPE & v, const Point3<SCALARTYPE> & p, SCALARTYPE & minDist, Point3<SCALARTYPE> & q) {
/*
* @param v [IN] is a reference to the current object being tested,
* @param p [IN] is the query point,
* @param minDist [IN/OUT] is in input the reject distance and in output the closest distance,
* @param q [OUT] is the closest point.
*
* @remarks The operator returns true if the closest distance is less than input reject distance.
*
*/
inline bool operator () (const VERTEXTYPE & v, const Point3<SCALARTYPE> & p, SCALARTYPE & minDist, Point3<SCALARTYPE> & q)
{
// convert the coordinates of p from SCALARTYPE to VERTEXTYPE::ScalarType type
const Point3<typename VERTEXTYPE::ScalarType> fp = Point3<typename VERTEXTYPE::ScalarType>::Construct(p);
typename VERTEXTYPE::ScalarType md;
md=(v.P()-fp).Norm();
bool ret = (md<=minDist);
if (ret) minDist = (SCALARTYPE)(md);
q = v.P();
return (ret);
typename VERTEXTYPE::ScalarType md; // distance between v and fp
md = (v.P() - fp).Norm();
if (md <= minDist)
{
minDist = (SCALARTYPE)(md); // minDist is updated to the closest distance
q = v.P(); // q is the current closest point
return true;
}
return false;
}
};
} // end namespace face
} // end namespace vertex
} // end namespace vcg