/// <summary>
/// Returns true if the provided cell, and all its sub-cells down to
/// detailLevel all intersect the queryShape.
/// </summary>
private bool AllCellsIntersectQuery(Cell cell, SpatialRelation relate /*cell to query*/)
{
if (relate == SpatialRelation.NOT_SET)
{
relate = cell.Shape.Relate(m_outerInstance.m_queryShape);
}
if (cell.Level == m_outerInstance.m_detailLevel)
{
return(relate.Intersects());
}
if (relate == SpatialRelation.WITHIN)
{
return(true);
}
if (relate == SpatialRelation.DISJOINT)
{
return(false);
}
// Note: Generating all these cells just to determine intersection is not ideal.
// It was easy to implement but could be optimized. For example if the docs
// in question are already marked in the 'outside' bitset then it can be avoided.
ICollection <Cell> subCells = cell.GetSubCells(null);
foreach (Cell subCell in subCells)
{
if (!AllCellsIntersectQuery(subCell, SpatialRelation.NOT_SET))
{
//recursion
return(false);
}
}
return(true);
}
/// <summary>
/// Returns true if the provided cell, and all its sub-cells down to
/// detailLevel all intersect the queryShape.
/// </summary>
private bool AllCellsIntersectQuery(Cell cell, SpatialRelation relate /*cell to query*/)
{
// LUCENENET specific - added guard clause
if (cell is null)
{
throw new ArgumentNullException(nameof(cell));
}
if (relate == SpatialRelation.None)
{
relate = cell.Shape.Relate(m_filter.m_queryShape);
}
if (cell.Level == m_filter.m_detailLevel)
{
return(relate.Intersects());
}
if (relate == SpatialRelation.Within)
{
return(true);
}
if (relate == SpatialRelation.Disjoint)
{
return(false);
}
// Note: Generating all these cells just to determine intersection is not ideal.
// It was easy to implement but could be optimized. For example if the docs
// in question are already marked in the 'outside' bitset then it can be avoided.
ICollection <Cell> subCells = cell.GetSubCells(null);
foreach (Cell subCell in subCells)
{
if (!AllCellsIntersectQuery(subCell, SpatialRelation.None))
{
//recursion
return(false);
}
}
return(true);
}
/// <summary>
/// Returns true if the provided cell, and all its sub-cells down to
/// detailLevel all intersect the queryShape.
/// </summary>
private bool AllCellsIntersectQuery(Cell cell, SpatialRelation relate/*cell to query*/)
{
if (relate == SpatialRelation.NOT_SET)
{
relate = cell.Shape.Relate(outerInstance.queryShape);
}
if (cell.Level == outerInstance.detailLevel)
{
return relate.Intersects();
}
if (relate == SpatialRelation.WITHIN)
{
return true;
}
if (relate == SpatialRelation.DISJOINT)
{
return false;
}
// Note: Generating all these cells just to determine intersection is not ideal.
// It was easy to implement but could be optimized. For example if the docs
// in question are already marked in the 'outside' bitset then it can be avoided.
ICollection<Cell> subCells = cell.GetSubCells(null);
foreach (Cell subCell in subCells)
{
if (!AllCellsIntersectQuery(subCell, SpatialRelation.NOT_SET))
{
//recursion
return false;
}
}
return true;
}