public void CanFindJunctionAtEdgeEnd()
{
const string fgdbName = "NetworkJunctionFinderTest.gdb";
// Create FGDB with test features:
IFeatureClass edgeClass, junctionClass;
LinearNetworkGdbFeatureFinder featureFinder =
CreateTestGdbSchema(fgdbName, out edgeClass, out junctionClass);
ISpatialReference lv95 =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IPoint fromPoint1 = GeometryFactory.CreatePoint(2600000, 1200000, lv95);
IPoint toPoint1 = GeometryFactory.CreatePoint(2600020, 1200010, lv95);
CreateEdge(edgeClass, fromPoint1, toPoint1);
Assert.AreEqual(0, featureFinder.FindJunctionFeaturesAt(fromPoint1).Count);
Assert.AreEqual(0, featureFinder.FindJunctionFeaturesAt(toPoint1).Count);
IFeature from1Junction = CreateJunction(junctionClass, fromPoint1);
IList <IFeature> found = featureFinder.FindJunctionFeaturesAt(fromPoint1);
Assert.AreEqual(1, found.Count);
Assert.AreEqual(from1Junction.OID, found[0].OID);
Assert.AreEqual(0, featureFinder.FindJunctionFeaturesAt(toPoint1).Count);
// Duplicate junction (different Z)
fromPoint1.Z = 123;
IFeature fromJunction2 = CreateJunction(junctionClass, fromPoint1);
found = featureFinder.FindJunctionFeaturesAt(fromPoint1);
Assert.AreEqual(2, found.Count);
Assert.AreNotEqual(found[0].OID, found[1].OID);
Assert.IsTrue(found.Any(
j => GdbObjectUtils.IsSameObject(
j, fromJunction2, ObjectClassEquality.SameInstance)));
Assert.IsTrue(found[0].Class == junctionClass && found[1].Class == junctionClass);
// Stand-alone junction
IPoint disjointPoint = GeometryFactory.CreatePoint(2600025, 1200011, lv95);
found = featureFinder.FindJunctionFeaturesAt(disjointPoint);
Assert.AreEqual(0, found.Count);
IFeature standalone = CreateJunction(junctionClass, disjointPoint);
found = featureFinder.FindJunctionFeaturesAt(disjointPoint);
Assert.AreEqual(1, found.Count);
Assert.IsTrue(GdbObjectUtils.IsSameObject(found[0], standalone,
ObjectClassEquality.SameInstance));
}
private static LinearNetworkGdbFeatureFinder CreateTestGdbSchema(
string fgdbName,
out IFeatureClass edgeClass, out IFeatureClass junctionClass)
{
const string unitTestDir = @"C:\Temp\UnitTestData";
try
{
FileSystemUtils.DeleteDirectory(Path.Combine(unitTestDir, fgdbName), true,
true);
}
catch (Exception)
{
// ignored
}
IWorkspaceName workspaceName =
WorkspaceUtils.CreateFileGdbWorkspace(unitTestDir,
fgdbName);
IWorkspace workspace = WorkspaceUtils.OpenWorkspace(workspaceName);
ISpatialReference lv95 =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IFieldsEdit fieldsReference = new FieldsClass();
fieldsReference.AddField(FieldUtils.CreateOIDField());
fieldsReference.AddField(
FieldUtils.CreateShapeField(esriGeometryType.esriGeometryPolyline, lv95));
edgeClass = DatasetUtils.CreateSimpleFeatureClass(
(IFeatureWorkspace)workspace, "Edges", string.Empty,
FieldUtils.CreateOIDField(),
FieldUtils.CreateShapeField(esriGeometryType.esriGeometryPolyline, lv95));
junctionClass = DatasetUtils.CreateSimpleFeatureClass(
(IFeatureWorkspace)workspace, "Junctions", string.Empty,
FieldUtils.CreateOIDField(),
FieldUtils.CreateShapeField(esriGeometryType.esriGeometryPoint, lv95));
List <LinearNetworkClassDef> networkClassDefinitions =
new List <LinearNetworkClassDef>
{
new LinearNetworkClassDef(edgeClass),
new LinearNetworkClassDef(junctionClass)
};
LinearNetworkGdbFeatureFinder featureFinder =
new LinearNetworkGdbFeatureFinder(networkClassDefinitions);
return(featureFinder);
}
public void CanFindEdges()
{
const string fgdbName = "NetworkEdgeFinderTest.gdb";
// Create FGDB with test features:
IFeatureClass edgeClass, junctionClass;
LinearNetworkGdbFeatureFinder featureFinder =
CreateTestGdbSchema(fgdbName, out edgeClass, out junctionClass);
ISpatialReference lv95 =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IPoint fromPoint1 = GeometryFactory.CreatePoint(2600000, 1200000, lv95);
IPoint toPoint1 = GeometryFactory.CreatePoint(2600020, 1200010, lv95);
IFeature edge1 = CreateEdge(edgeClass, fromPoint1, toPoint1);
Assert.AreEqual(
0, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.Both).Count);
IPoint toPoint2 = GeometryFactory.CreatePoint(2600025, 1200000, lv95);
IFeature edge2 = CreateEdge(edgeClass, toPoint1, toPoint2);
Assert.AreEqual(
0, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.From).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.To).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.Both).Count);
// Junction makes no difference:
CreateJunction(junctionClass, toPoint1);
Assert.AreEqual(
0, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.From).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.To).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.Both).Count);
IPoint toPoint3 = GeometryFactory.CreatePoint(2600035, 1200020, lv95);
IFeature edge3 = CreateEdge(edgeClass, toPoint2, toPoint3);
IList <IFeature> found =
featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.From);
Assert.AreEqual(1, found.Count);
Assert.IsTrue(
GdbObjectUtils.IsSameObject(edge1, found[0], ObjectClassEquality.SameInstance));
found = featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.To);
Assert.AreEqual(1, found.Count);
Assert.IsTrue(
GdbObjectUtils.IsSameObject(edge3, found[0], ObjectClassEquality.SameInstance));
found = featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.Both);
Assert.AreEqual(2, found.Count);
// Now in the cache:
IEnvelope cacheEnv =
GeometryFactory.CreateEnvelope(2600000, 1200000, 2600100, 1200100, lv95);
featureFinder.CacheTargetFeatureCandidates(cacheEnv);
// NOTE: Once the TargetFeatures cache is not null, the DB is not searched any more (usage in service!)
Assert.AreEqual(
0, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.From).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.To).Count);
Assert.AreEqual(
1, featureFinder.GetConnectedEdgeFeatures(edge1, null, LineEnd.Both).Count);
found =
featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.From);
Assert.AreEqual(1, found.Count);
Assert.IsTrue(
GdbObjectUtils.IsSameObject(edge1, found[0], ObjectClassEquality.SameInstance));
found = featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.To);
Assert.AreEqual(1, found.Count);
Assert.IsTrue(
GdbObjectUtils.IsSameObject(edge3, found[0], ObjectClassEquality.SameInstance));
found = featureFinder.GetConnectedEdgeFeatures(edge2, null, LineEnd.Both);
Assert.AreEqual(2, found.Count);
}
