public virtual RoadNetwork CreateNetwork(FeatureSource featureSource)
{
featureSource.Open();
QTreeSpatialIndex qtree = new QTreeSpatialIndex(featureSource.GetBoundingBox());
#if DEBUG
long featureCount = featureSource.GetCount();
#endif
RoadNetwork roadNetwork = new RoadNetwork();
Collection<Feature> features = featureSource.GetAllFeatures(ReturningColumnsType.NoColumns);
featureSource.Close();
Collection<Collection<Feature>> featureGroups = GroupFeatures(features);
int done = 0;
var tasks = (from items in featureGroups
select Task.Factory.StartNew(() =>
{
var clonedFeatureSource = featureSource.CloneDeep();
clonedFeatureSource.Open();
foreach (var feature in items)
{
Collection<LineShape> processingLineShapes = GeometryHelper.GetLineShapes(feature);
// Get the lineshape of the processing feature.
foreach (LineShape processingLineShape in processingLineShapes)
{
BuildNetworkNode(clonedFeatureSource, qtree, roadNetwork, processingLineShape.Vertices[0]);
BuildNetworkNode(clonedFeatureSource, qtree, roadNetwork, processingLineShape.Vertices[processingLineShape.Vertices.Count - 1]);
}
done++;
Console.WriteLine(string.Format("Done {0} in {1}", feature.Id, done));
}
})).ToArray();
//foreach (Feature feature in features)
//{
// Task.Factory.StartNew(() =>
// {
// Collection<LineShape> processingLineShapes = GeometryHelper.GetLineShapes(feature);
// // Get the lineshape of the processing feature.
// foreach (LineShape processingLineShape in processingLineShapes)
// {
// BuildNetworkNode(featureSource, qtree, roadNetwork, processingLineShape.Vertices[0]);
// BuildNetworkNode(featureSource, qtree, roadNetwork, processingLineShape.Vertices[processingLineShape.Vertices.Count - 1]);
// }
// }
// );
Task.WaitAll(tasks);
#if DEBUG
#endif
//}
//featureSource.Close();
return roadNetwork;
}
public virtual RoadNetwork CreateNetwork(FeatureSource featureSource)
{
featureSource.Open();
QTreeSpatialIndex qtree = new QTreeSpatialIndex(featureSource.GetBoundingBox());
#if DEBUG
long featureCount = featureSource.GetCount();
#endif
RoadNetwork roadNetwork = new RoadNetwork();
Collection <Feature> features = featureSource.GetAllFeatures(ReturningColumnsType.NoColumns);
featureSource.Close();
Collection <Collection <Feature> > featureGroups = GroupFeatures(features);
int done = 0;
var tasks = (from items in featureGroups
select Task.Factory.StartNew(() =>
{
var clonedFeatureSource = featureSource.CloneDeep();
clonedFeatureSource.Open();
foreach (var feature in items)
{
Collection <LineShape> processingLineShapes = GeometryHelper.GetLineShapes(feature);
// Get the lineshape of the processing feature.
foreach (LineShape processingLineShape in processingLineShapes)
{
BuildNetworkNode(clonedFeatureSource, qtree, roadNetwork, processingLineShape.Vertices[0]);
BuildNetworkNode(clonedFeatureSource, qtree, roadNetwork, processingLineShape.Vertices[processingLineShape.Vertices.Count - 1]);
}
done++;
Console.WriteLine(string.Format("Done {0} in {1}", feature.Id, done));
}
})).ToArray();
//foreach (Feature feature in features)
//{
// Task.Factory.StartNew(() =>
// {
// Collection<LineShape> processingLineShapes = GeometryHelper.GetLineShapes(feature);
// // Get the lineshape of the processing feature.
// foreach (LineShape processingLineShape in processingLineShapes)
// {
// BuildNetworkNode(featureSource, qtree, roadNetwork, processingLineShape.Vertices[0]);
// BuildNetworkNode(featureSource, qtree, roadNetwork, processingLineShape.Vertices[processingLineShape.Vertices.Count - 1]);
// }
// }
// );
Task.WaitAll(tasks);
#if DEBUG
#endif
//}
//featureSource.Close();
return(roadNetwork);
}
private void BuildNetworkNode(FeatureSource featureSource, QTreeSpatialIndex qtree, RoadNetwork roadNetwork, Vertex vertex)
{
RectangleShape startSmallBounds = GeometryHelper.CreateSmallRectangle(vertex, tolerance);
Collection <string> idsInside = qtree.GetFeatureIdsIntersectingBoundingBox(startSmallBounds);
if (idsInside.Count <= 0)
{
Node startNode = CreateNode(featureSource, roadNetwork, vertex);
roadNetwork.Nodes.Add(startNode);
qtree.Add(new PointShape(vertex));
}
}
private void BuildNetworkNode(FeatureSource featureSource, QTreeSpatialIndex qtree, RoadNetwork roadNetwork, Vertex vertex)
{
RectangleShape startSmallBounds = GeometryHelper.CreateSmallRectangle(vertex, tolerance);
Collection<string> idsInside = qtree.GetFeatureIdsIntersectingBoundingBox(startSmallBounds);
if (idsInside.Count <= 0)
{
Node startNode = CreateNode(featureSource, roadNetwork, vertex);
roadNetwork.Nodes.Add(startNode);
qtree.Add(new PointShape(vertex));
}
}
