// no cuts
private void Generate_polygon_cuts_()
{
com.epl.geometry.AttributeStreamOfInt32 cutHandles = new com.epl.geometry.AttributeStreamOfInt32(0);
com.epl.geometry.EditShape shape = new com.epl.geometry.EditShape();
int sideIndex = shape.CreateGeometryUserIndex();
int cutteeHandle = shape.AddGeometry(m_cuttee);
int cutterHandle = shape.AddGeometry(m_cutter);
com.epl.geometry.TopologicalOperations topoOp = new com.epl.geometry.TopologicalOperations();
try
{
topoOp.SetEditShapeCrackAndCluster(shape, m_tolerance, m_progressTracker);
topoOp.Cut(sideIndex, cutteeHandle, cutterHandle, cutHandles);
com.epl.geometry.Polygon cutteeRemainder = (com.epl.geometry.Polygon)shape.GetGeometry(cutteeHandle);
com.epl.geometry.MultiPath left = new com.epl.geometry.Polygon();
com.epl.geometry.MultiPath right = new com.epl.geometry.Polygon();
m_cuts.Clear();
m_cuts.Add(left);
m_cuts.Add(right);
for (int icutIndex = 0; icutIndex < cutHandles.Size(); icutIndex++)
{
com.epl.geometry.Geometry cutGeometry;
{
// intersection
com.epl.geometry.EditShape shapeIntersect = new com.epl.geometry.EditShape();
int geometryA = shapeIntersect.AddGeometry(cutteeRemainder);
int geometryB = shapeIntersect.AddGeometry(shape.GetGeometry(cutHandles.Get(icutIndex)));
topoOp.SetEditShape(shapeIntersect, m_progressTracker);
int intersectHandle = topoOp.Intersection(geometryA, geometryB);
cutGeometry = shapeIntersect.GetGeometry(intersectHandle);
if (cutGeometry.IsEmpty())
{
continue;
}
int side = shape.GetGeometryUserIndex(cutHandles.Get(icutIndex), sideIndex);
if (side == 2)
{
left.Add((com.epl.geometry.MultiPath)cutGeometry, false);
}
else
{
if (side == 1)
{
right.Add((com.epl.geometry.MultiPath)cutGeometry, false);
}
else
{
m_cuts.Add((com.epl.geometry.MultiPath)cutGeometry);
}
}
}
{
// Undefined
// difference
com.epl.geometry.EditShape shapeDifference = new com.epl.geometry.EditShape();
int geometryA = shapeDifference.AddGeometry(cutteeRemainder);
int geometryB = shapeDifference.AddGeometry(shape.GetGeometry(cutHandles.Get(icutIndex)));
topoOp.SetEditShape(shapeDifference, m_progressTracker);
cutteeRemainder = (com.epl.geometry.Polygon)shapeDifference.GetGeometry(topoOp.Difference(geometryA, geometryB));
}
}
if (!cutteeRemainder.IsEmpty() && cutHandles.Size() > 0)
{
m_cuts.Add((com.epl.geometry.MultiPath)cutteeRemainder);
}
if (left.IsEmpty() && right.IsEmpty())
{
m_cuts.Clear();
}
}
finally
{
// no cuts
topoOp.RemoveShape();
}
}