private static List <ArcmapPickCandidate> FindPickCandidates(
IPoint mapPoint, List <IFeatureLayer> pickLayers, double mapScale, double searchTolerance)
{
List <ArcmapPickCandidate> result = new List <ArcmapPickCandidate>();
if (pickLayers.Count > 0)
{
IEnvelope searchEnvelope = mapPoint.Envelope;
searchEnvelope.Expand(searchTolerance, searchTolerance, false);
foreach (IFeatureLayer pickLayer in pickLayers)
{
if (ArcmapLayerUtils.LayerIsVisible(pickLayer, mapScale))
{
IIdentify identifier = pickLayer as IIdentify;
IArray elements = identifier.Identify(searchEnvelope);
foreach (object element in elements.Enumerate())
{
IFeature feature = (element as IRowIdentifyObject).Row as IFeature;
double distance;
IPoint footPoint;
CalculateNearestDistanceToFeature(mapPoint, feature, out distance, out footPoint);
ArcmapPickCandidate ranking = new ArcmapPickCandidate(element as IIdentifyObj, distance);
result.Add(ranking);
}
}
}
}
return(result);
}
public void CreatePropertyChildNodes(TreeviewBranchViewModel parentNode, object comObj, Type typ)
{
IArray arr = comObj as IArray;
int index = 0;
foreach (object value in arr.Enumerate())
{
if ((value != null) && (value.GetType().IsCOMObject))
{
ComObjectViewModel child = new ComObjectViewModel(parentNode, value, typeof(object), "[" + index + "]");
parentNode.Children.Add(child);
}
index++;
}
}