private void btnRoute_Click(object sender, EventArgs e)
{
Algorithm algorithm = new AStarAlgorithm();
RoutingSource routingSource = new CustomRoutingSource(new ShapeFileFeatureSource(@"..\..\App_Data\Austinstreets.shp"));
Collection <Road> pathIDs = algorithm.GetShortestPath(routingSource, txtStartId.Text, txtEndId.Text);
Collection <Feature> features = new Collection <Feature>();
Dictionary <string, ShapeFileFeatureSource> featureSources = new Dictionary <string, ShapeFileFeatureSource>();
for (int i = 0; i < pathIDs.Count; i++)
{
FeatureSource featureSource = routingSource.GetFeatureSourceByroadId(pathIDs[i].Id);
featureSource.Open();
features.Add(featureSource.GetFeatureById(routingSource.GetFeatureIdByroadId(pathIDs[i].Id).ToString(), ReturningColumnsType.NoColumns));
featureSource.Close();
}
winformsMap1.Overlays["RoutingOverlay"].Lock.EnterWriteLock();
try
{
InMemoryFeatureLayer inmemoryLayer = (InMemoryFeatureLayer)((LayerOverlay)winformsMap1.Overlays["RoutingOverlay"]).Layers["RoutingLayer"];
inmemoryLayer.InternalFeatures.Clear();
foreach (Feature feature in features)
{
inmemoryLayer.InternalFeatures.Add(feature);
}
inmemoryLayer.Open();
winformsMap1.CurrentExtent = inmemoryLayer.GetBoundingBox();
inmemoryLayer.Close();
}
finally
{
winformsMap1.Overlays["RoutingOverlay"].Lock.ExitWriteLock();
}
winformsMap1.Refresh();
}
