/// <summary>
/// Tests that no hole is nested inside another hole.
/// </summary>
/// <remarks>
/// This routine assumes that the holes are disjoint.
/// To ensure this, holes have previously been tested
/// to ensure that:
/// <ul>
/// <li>they do not partially overlap
/// (Checked by CheckRelateConsistency)</li>
/// <li>they are not identical
/// (Checked by CheckRelateConsistency)</li>
/// <li>they do not touch at a vertex
/// (Checked by ????)</li>
/// </ul>
/// </remarks>
/// <param name="p"></param>
/// <param name="graph"></param>
private void CheckHolesNotNested(Polygon p, GeometryGraph graph)
{
QuadtreeNestedRingTester nestedTester = new QuadtreeNestedRingTester(graph);
//SimpleNestedRingTester nestedTester = new SimpleNestedRingTester(_arg[0]);
//SweeplineNestedRingTester nestedTester = new SweeplineNestedRingTester(_arg[0]);
for (int i = 0; i < p.GetNumInteriorRing(); i++)
{
LinearRing innerHole = p.GetInteriorRingN(i);
nestedTester.Add(innerHole);
}
bool isNonNested = nestedTester.IsNonNested();
if (!isNonNested)
{
_validErr = new TopologyValidationError(
TopologyValidationError.NestedHoles,
nestedTester.GetNestedPoint());
}
}
/// <summary>
/// Tests that no hole is nested inside another hole.
/// </summary>
/// <remarks>
/// This routine assumes that the holes are disjoint.
/// To ensure this, holes have previously been tested
/// to ensure that:
/// <ul>
/// <li>they do not partially overlap
/// (Checked by CheckRelateConsistency)</li>
/// <li>they are not identical
/// (Checked by CheckRelateConsistency)</li>
/// <li>they do not touch at a vertex
/// (Checked by ????)</li>
/// </ul>
/// </remarks>
/// <param name="p"></param>
/// <param name="graph"></param>
private void CheckHolesNotNested(Polygon p, GeometryGraph graph)
{
QuadtreeNestedRingTester nestedTester = new QuadtreeNestedRingTester(graph);
//SimpleNestedRingTester nestedTester = new SimpleNestedRingTester(_arg[0]);
//SweeplineNestedRingTester nestedTester = new SweeplineNestedRingTester(_arg[0]);
for (int i = 0; i < p.GetNumInteriorRing(); i++)
{
LinearRing innerHole = p.GetInteriorRingN( i );
nestedTester.Add(innerHole);
}
bool isNonNested = nestedTester.IsNonNested();
if ( ! isNonNested )
{
_validErr = new TopologyValidationError(
TopologyValidationError.NestedHoles,
nestedTester.GetNestedPoint());
}
}