/// <summary>
/// Get elements in frame.
/// </summary>
/// <param name="objectLayer">Layer to find elements.</param>
/// <param name="frame">Frame.</param>
/// <returns>Elements in frame.</returns>
private List <object> _GetElementsInSelectionFrame(ObjectLayer objectLayer,
ESRI.ArcGIS.Client.Geometry.Envelope frame)
{
Debug.Assert(SelectedItems != null);
Debug.Assert(_selectionFrame != null);
Debug.Assert(_clustering != null);
List <object> elementsInFrame = new List <object>();
foreach (DataGraphicObject graphic in objectLayer.MapLayer.Graphics)
{
// Null extent in case of empty polyline.
if (graphic.Geometry != null && graphic.Geometry.Extent != null &&
graphic.Data.GetType() == objectLayer.LayerType)
{
// If graphic in frame, data type is equals to objectLayer data type and data contains in objectayercollection.
if (MapHelpers.IsIntersects(frame, graphic.Geometry) && graphic.Data.GetType() == objectLayer.LayerType &&
MapHelpers.CollectionContainsData(objectLayer.Collection, graphic.Data))
{
elementsInFrame.Add(graphic.Data);
}
}
}
_clustering.AddElementsFromClusterAndNotInFrame(objectLayer, frame, elementsInFrame);
return(elementsInFrame);
}
/// <summary>
/// Add elements from cluster and not in frame
/// </summary>
/// <param name="objectLayer">Object layer to find cluster</param>
/// <param name="frame">Selection fram envelope</param>
/// <param name="elementsInFrame">Already selected elements list</param>
public void AddElementsFromClusterAndNotInFrame(ObjectLayer objectLayer, Envelope frame, IList <object> elementsInFrame)
{
foreach (ClusterGraphicObject clusterGraphic in ClusterGraphicObject.Graphics)
{
if (MapHelpers.IsIntersects(frame, clusterGraphic.Geometry))
{
IList <object> clusterDataList = GetClusteredData(clusterGraphic);
foreach (object data in clusterDataList)
{
// if graphic not in frame yet, data type is equals to objectLayer data type and data contains in objectayercollection
if (data.GetType() == objectLayer.LayerType && !elementsInFrame.Contains(data) &&
MapHelpers.CollectionContainsData(objectLayer.Collection, data))
{
elementsInFrame.Add(data);
}
}
}
}
}