internal System.Collections.Generic.List <com.epl.geometry.Geometry> Collect_geometries_to_union(int dim)
{
System.Collections.Generic.List <com.epl.geometry.Geometry> batch_to_union = new System.Collections.Generic.List <com.epl.geometry.Geometry>();
System.Collections.Generic.List <System.Collections.Generic.KeyValuePair <int, com.epl.geometry.OperatorUnionCursor.Bin_type> > entriesToRemove = new System.Collections.Generic.List <System.Collections.Generic.KeyValuePair <int, com.epl.geometry.OperatorUnionCursor.Bin_type> >();
System.Collections.Generic.SortedDictionary <int, com.epl.geometry.OperatorUnionCursor.Bin_type> set = m_union_bins[dim];
foreach (System.Collections.Generic.KeyValuePair <int, com.epl.geometry.OperatorUnionCursor.Bin_type> e in set)
{
//int level = e.getKey();
com.epl.geometry.OperatorUnionCursor.Bin_type bin = e.Value;
int binVertexThreshold = 10000;
if (m_b_done || (bin.bin_vertex_count > binVertexThreshold && bin.Geom_count() > 1))
{
m_dim_geom_counts[dim] -= bin.Geom_count();
m_added_geoms -= bin.Geom_count();
while (bin.geometries.Count > 0)
{
// empty geometries will be unioned too.
batch_to_union.Add(bin.Back_pair().geom);
bin.Pop_pair();
}
entriesToRemove.Add(e);
}
}
entriesToRemove.ForEach(e => set.Remove(e.Key));
return(batch_to_union);
}
private void Add_geom(int dimension, bool unioned, com.epl.geometry.Geometry geom)
{
com.epl.geometry.OperatorUnionCursor.Geom_pair pair = new com.epl.geometry.OperatorUnionCursor.Geom_pair();
pair.Init();
pair.geom = geom;
int sz = Get_vertex_count_(geom);
pair.vertex_count = sz;
int level = Get_level_(sz);
if (dimension + 1 > (int)m_union_bins.Count)
{
for (int i = 0, n = System.Math.Max(2, dimension + 1); i < n; i++)
{
m_union_bins.Add(new System.Collections.Generic.SortedDictionary <int, com.epl.geometry.OperatorUnionCursor.Bin_type>());
}
}
//com.epl.geometry.OperatorUnionCursor.Bin_type bin = m_union_bins[dimension][level];
//return null if level is abscent
com.epl.geometry.OperatorUnionCursor.Bin_type bin;
if (!m_union_bins[dimension].TryGetValue(level, out bin))
{
bin = new com.epl.geometry.OperatorUnionCursor.Bin_type();
m_union_bins[dimension][level] = bin;
}
pair.unioned = unioned;
bin.Add_pair(pair);
// Update global cursor state
m_dim_geom_counts[dimension]++;
m_added_geoms++;
m_max_dimension = System.Math.Max(m_max_dimension, dimension);
}
private com.epl.geometry.Geometry Get_result_geometry(int dim)
{
System.Diagnostics.Debug.Assert((m_dim_geom_counts[dim] > 0));
System.Collections.Generic.SortedDictionary <int, com.epl.geometry.OperatorUnionCursor.Bin_type> map = m_union_bins[dim];
System.Collections.Generic.KeyValuePair <int, com.epl.geometry.OperatorUnionCursor.Bin_type> e = map.First();
com.epl.geometry.OperatorUnionCursor.Bin_type bin = e.Value;
com.epl.geometry.Geometry resG;
resG = bin.Back_pair().geom;
bool unioned = bin.Back_pair().unioned;
map.Remove(e.Key);
if (unioned)
{
resG = com.epl.geometry.OperatorSimplify.Local().Execute(resG, m_spatial_reference, false, m_progress_tracker);
if (dim == 0 && resG.GetType() == com.epl.geometry.Geometry.Type.Point)
{
// must
// return
// multipoint
// for
// points
com.epl.geometry.MultiPoint mp = new com.epl.geometry.MultiPoint(resG.GetDescription());
if (!resG.IsEmpty())
{
mp.Add((com.epl.geometry.Point)resG);
}
resG = mp;
}
}
return(resG);
}
