public void DiagramElementQueryResultAndNetworkDiagramSubsetClasses(Geodatabase geodatabase, DiagramManager diagramManager, string diagramName)
{
// Retrieve a diagram
using (NetworkDiagram diagramTest = diagramManager.GetNetworkDiagram(diagramName))
{
// Create a DiagramElementQueryByElementTypes query object to get the diagram elements we want to work with
DiagramElementQueryByElementTypes query = new DiagramElementQueryByElementTypes();
query.QueryDiagramJunctionElement = true;
query.QueryDiagramEdgeElement = true;
query.QueryDiagramContainerElement = true;
// Retrieve those diagram elements
DiagramElementQueryResult elements = diagramTest.QueryDiagramElements(query);
// Create a NetworkDiagramSubset object to edit this set of diagram elements
NetworkDiagramSubset subset = new NetworkDiagramSubset();
subset.DiagramJunctionElements = elements.DiagramJunctionElements;
subset.DiagramEdgeElements = elements.DiagramEdgeElements;
subset.DiagramContainerElements = elements.DiagramContainerElements;
// Edit the shapes of the diagram elements - left as an exercise for the student
TranslateDiagramElements(subset);
// Save the new layout of the diagram elements
diagramTest.SaveLayout(subset, true);
}
}
/// <summary>
/// Initialize class
/// </summary>
/// <param name="Diagram">NetworkDiagram</param>
public void Initialize(NetworkDiagram Diagram)
{
_junctions.Clear();
_edges.Clear();
_containers.Clear();
_adjacentEdges.Clear();
_containment.Clear();
DiagramElementQueryByElementTypes query = new DiagramElementQueryByElementTypes
{
QueryDiagramContainerElement = true,
QueryDiagramEdgeElement = true,
QueryDiagramJunctionElement = true
};
DiagramElementQueryResult deqr = Diagram.QueryDiagramElements(query);
foreach (var container in deqr.DiagramContainerElements)
{
_containers[container.ID] = new CustomContainer(container);
if (container.ContainerID > 0)
{
AddContainment(container.ContainerID, container.ID);
}
}
foreach (var junction in deqr.DiagramJunctionElements)
{
_junctions[junction.ID] = new CustomJunction(junction);
if (junction.ContainerID > 0)
{
AddContainment(junction.ContainerID, junction.ID);
}
}
foreach (var edge in deqr.DiagramEdgeElements)
{
_edges[edge.ID] = new CustomEdge(edge);
AddAdjacentEdge(edge.FromID, edge.ID);
AddAdjacentEdge(edge.ToID, edge.ID);
if (edge.ContainerID > 0)
{
AddContainment(edge.ContainerID, edge.ID);
}
}
}
public void RetrieveDiagramElements(MapView mapView, NetworkDiagram networkDiagram)
{
// Create a DiagramElementQueryByExtent to retrieve diagram element junctions whose extent
// intersects the active map extent
DiagramElementQueryByExtent elementQuery = new DiagramElementQueryByExtent();
elementQuery.ExtentOfInterest = MapView.Active.Extent;
elementQuery.AddContents = false;
elementQuery.QueryDiagramJunctionElement = true;
elementQuery.QueryDiagramEdgeElement = false;
elementQuery.QueryDiagramContainerElement = false;
// Use this DiagramElementQueryByExtent as an argument to the QueryDiagramElements method
DiagramElementQueryResult result = networkDiagram.QueryDiagramElements(elementQuery);
}
