internal override void CreateMapElement()
{
if (!CanCreateElement || ArcMap.Document == null || ArcMap.Document.FocusMap == null || string.IsNullOrWhiteSpace(SelectedSurfaceName))
return;
//base.CreateMapElement();
var surface = GetSurfaceFromMapByName(ArcMap.Document.FocusMap, SelectedSurfaceName);
if (surface == null)
return;
using (ComReleaser oComReleaser = new ComReleaser())
{
// Create feature workspace
IFeatureWorkspace workspace = CreateFeatureWorkspace("tempWorkspace");
StartEditOperation((IWorkspace)workspace);
// Create feature class
IFeatureClass pointFc = CreateObserversFeatureClass(workspace, "Output" + RunCount.ToString());
double finalObserverOffset = GetOffsetInZUnits(ArcMap.Document.FocusMap, ObserverOffset.Value, surface.ZFactor, OffsetUnitType);
double finalSurfaceOffset = GetOffsetInZUnits(ArcMap.Document.FocusMap, SurfaceOffset, surface.ZFactor, OffsetUnitType);
double conversionFactor = GetConversionFactor(ArcMap.Document.FocusMap.SpatialReference);
double convertedMinDistance = MinDistance * conversionFactor;
double convertedMaxDistance = MaxDistance * conversionFactor;
double finalMinDistance = GetLinearDistance(ArcMap.Document.FocusMap, convertedMinDistance, OffsetUnitType);
double finalMaxDistance = GetLinearDistance(ArcMap.Document.FocusMap, convertedMaxDistance, OffsetUnitType);
double finalLeftHorizontalFOV = GetAngularDistance(ArcMap.Document.FocusMap, LeftHorizontalFOV, AngularUnitType);
double finalRightHorizontalFOV = GetAngularDistance(ArcMap.Document.FocusMap, RightHorizontalFOV, AngularUnitType);
double finalBottomVerticalFOV = GetAngularDistance(ArcMap.Document.FocusMap, BottomVerticalFOV, AngularUnitType);
double finalTopVerticalFOV = GetAngularDistance(ArcMap.Document.FocusMap, TopVerticalFOV, AngularUnitType);
// Out radius geometries
List<IGeometry> radius2GeomList = new List<IGeometry>();
List<IGeometry> radius1_2GeomList = new List<IGeometry>();
List<IGeometry> donutGeomList = new List<IGeometry>();
foreach (var observerPoint in ObserverAddInPoints)
{
// Create buffer geometries for final Min/Max distance
ITopologicalOperator topologicalOperator = observerPoint.Point as ITopologicalOperator;
IGeometry geom = topologicalOperator.Buffer(finalMaxDistance);
radius2GeomList.Add(geom);
radius1_2GeomList.Add(geom);
if (finalMinDistance > 0)
{
IGeometry geom2 = topologicalOperator.Buffer(finalMinDistance);
ITopologicalOperator eraseTopo = geom as ITopologicalOperator;
IGeometry erasedGeom = eraseTopo.Difference(geom2);
donutGeomList.Add(erasedGeom);
}
else
{
radius1_2GeomList.Add(geom);
}
double z1 = surface.GetElevation(observerPoint.Point) + finalObserverOffset;
//create a new point feature
IFeature ipFeature = pointFc.CreateFeature();
// Set the field values for the feature
SetFieldValues(finalObserverOffset, finalSurfaceOffset, finalMinDistance, finalMaxDistance, finalLeftHorizontalFOV,
finalRightHorizontalFOV, finalBottomVerticalFOV, finalTopVerticalFOV, ipFeature);
//Create shape
IPoint point = new PointClass() { Z = z1, X = observerPoint.Point.X, Y = observerPoint.Point.Y, ZAware = true };
ipFeature.Shape = point;
ipFeature.Store();
}
IFeatureClassDescriptor fd = new FeatureClassDescriptorClass();
fd.Create(pointFc, null, "OBJECTID");
StopEditOperation((IWorkspace)workspace);
try
{
ILayer layer = GetLayerFromMapByName(ArcMap.Document.FocusMap, SelectedSurfaceName);
string layerPath = GetLayerPath(layer);
IFeatureLayer ipFeatureLayer = new FeatureLayerClass();
ipFeatureLayer.FeatureClass = pointFc;
IDataset ipDataset = (IDataset)pointFc;
string outputFcName = ipDataset.BrowseName + "_output";
string strPath = ipDataset.Workspace.PathName + "\\" + ipDataset.BrowseName;
string outPath = ipDataset.Workspace.PathName + "\\" + outputFcName;
IVariantArray parameters = new VarArrayClass();
parameters.Add(layerPath);
parameters.Add(strPath);
parameters.Add(outPath);
esriLicenseStatus status = GetSpatialAnalystLicense();
IGeoProcessor2 gp = new GeoProcessorClass();
gp.AddOutputsToMap = false;
// Add a mask to buffer the output to selected distance
SetGPMask(workspace, radius2GeomList, gp, "radiusMask");
object oResult = gp.Execute("Visibility_sa", parameters, null);
IGeoProcessorResult ipResult = (IGeoProcessorResult)oResult;
ComReleaser.ReleaseCOMObject(gp);
gp = null;
GC.Collect();
// Add buffer geometries to the map
foreach (IGeometry geom in radius1_2GeomList)
{
var color = new RgbColorClass() { Blue = 255 } as IColor;
AddGraphicToMap(geom, color, true);
}
IRasterLayer outputRasterLayer = new RasterLayerClass();
outputRasterLayer.CreateFromFilePath(outPath);
string fcName = IntersectOutput(outputRasterLayer, ipDataset, workspace, donutGeomList);
IFeatureClass finalFc = workspace.OpenFeatureClass(fcName);
IFeatureLayer outputFeatureLayer = new FeatureLayerClass();
outputFeatureLayer.FeatureClass = finalFc;
//Add it to a map if the layer is valid.
if (outputFeatureLayer != null)
{
// set the renderer
IFeatureRenderer featRend = UnqueValueRenderer(workspace, finalFc);
IGeoFeatureLayer geoLayer = outputFeatureLayer as IGeoFeatureLayer;
geoLayer.Renderer = featRend;
geoLayer.Name = "VisibilityLayer_" + RunCount.ToString();
// Set the layer transparency
IDisplayFilterManager filterManager = (IDisplayFilterManager)outputFeatureLayer;
ITransparencyDisplayFilter filter = new TransparencyDisplayFilter();
filter.Transparency = 80;
filterManager.DisplayFilter = filter;
ESRI.ArcGIS.Carto.IMap map = ArcMap.Document.FocusMap;
map.AddLayer((ILayer)outputFeatureLayer);
}
RunCount += 1;
}
catch (Exception ex)
{
string exception = ex.ToString();
System.Windows.MessageBox.Show(VisibilityLibrary.Properties.Resources.MsgTryAgain, VisibilityLibrary.Properties.Resources.MsgCalcCancelled);
}
//Reset(true);
}
}
