EgtGeomKernel 1.8h3 :

- migliorie e correzioni su Zmap
- aggiunta a PointGrid3d nuova FindNearest
- migliorie a TriMesh.

PointGrid3d.cpp

@@ -354,6 +354,36 @@ PointGrid3d::FindNearest( const Point3d& ptTest, INTVECTOR& vnIds)
    }
 }
 
+//----------------------------------------------------------------------------
+bool
+PointGrid3d::FindNearest( const Point3d& ptTest, double dTol, int& nId)
+{
+  // determino il range di celle sui tre assi
+   IBox iBox ;
+   if ( ! Get3dRangeNbr( ptTest, dTol, iBox))
+      return false ;
+  // ciclo su tutte le celle del range
+   bool bFound = false ;
+   double dMinSqDist = dTol * dTol ;
+   for ( int i = iBox.nXmin ; i <= iBox.nXmax ; ++ i) {
+      for ( int j = iBox.nYmin ; j <= iBox.nYmax ; ++ j) {
+         for ( int k = iBox.nZmin ; k <= iBox.nZmax ; ++ k) {
+            IPNTI_UMMAP_CRANGE MMrange = m_MMap.equal_range( PointHash( i, j, k)) ;
+            for ( ; MMrange.first != MMrange.second ; ++ MMrange.first) {
+               double dSqDist = SqDist( (*MMrange.first).second.first, ptTest) ;
+               if ( dSqDist < dMinSqDist) {
+                  bFound = true ;
+                  dMinSqDist = dSqDist ;
+                  nId = (*MMrange.first).second.second ;
+               }
+            }
+         }
+      }
+   }
+
+   return bFound ;
+}
+
 //----------------------------------------------------------------------------
 bool
 PointGrid3d::First( int& nId)