EgtGeomKernel :

- correzioni alle HashGrids per evitare problemi con memoria
- ottimizzazione calcolo CollisionAvoid con TestSeries e TestPath fatti di seguito
- piccole milgiorie a Pocketing.

HashGrids1d.cpp

@@ -116,7 +116,7 @@ HashGrid1d::~HashGrid1d( void)
 {
    Clear() ;
 
-   for ( Cell* pCell  = m_cell ; pCell < m_cell + m_CellCount ; ++ pCell) {
+   for ( Cell* pCell  = m_cell ; pCell != nullptr && pCell < m_cell + m_CellCount ; ++ pCell) {
       if ( pCell->m_neighborOffset != m_stdNeighborOffset)
          delete[] pCell->m_neighborOffset ;
    }
@@ -396,8 +396,10 @@ HashGrid1d::Enlarge( void)
    for ( auto pCell = m_cell ; pCell < m_cell + m_CellCount ; ++ pCell) {
       if ( pCell->m_neighborOffset != m_stdNeighborOffset)
          delete[] pCell->m_neighborOffset ;
+      pCell->m_neighborOffset = nullptr ;
    }
    delete[] m_cell ;
+   m_cell = nullptr ;
 
   // ... the number of cells is doubled in each coordinate direction, ...
    m_CellCount *= 2 ;   
@@ -641,17 +643,15 @@ HashGrids1d::Find( const BBox3d& b3Test, INTVECTOR& vnIds) const
 void
 HashGrids1d::Clear( void)
 {
-   for ( auto pGrid : m_GridList) {
-      delete pGrid ;
-   }
-   m_GridList.clear() ;
-
-   m_bGridActive = false ;
-
-   m_nonGridObjs.clear() ;
-
+   m_ObjsList.clear() ;
+   m_ObjsMap.clear() ;
    m_objsToAdd.clear() ;
-
+   m_nonGridObjs.clear() ;
+   for ( auto pGrid : m_GridList)
+      delete pGrid ;
+   m_GridList.clear() ;
+   m_bActivate = true ;
+   m_bGridActive = false ;
    m_b3Objs.Reset() ;
 }