public static IFeatureClass CreateOPFeatureClass(WizardResult calcResult, IFeatureClass observatioPointsFeatureClass,
IActiveView activeView, IRaster raster)
{
var calcObservPointsFeatureClass = VisibilityCalcResults.GetResultName(VisibilityCalculationResultsEnum.ObservationPoints, calcResult.TaskName);
var observPointTemporaryFeatureClass =
GdbAccess.Instance.GenerateTemporaryFeatureClassWithRequitedFields(observatioPointsFeatureClass.Fields, calcObservPointsFeatureClass);
bool isCircle;
double maxAzimuth = 0;
double minAzimuth = 360;
double maxDistance = 0;
calcResult.ObservationStation.Project(activeView.FocusMap.SpatialReference);
var observationStationPolygon = calcResult.ObservationStation as IPolygon;
var observStationEnvelope = observationStationPolygon.Envelope;
var observStationEnvelopePoints = new IPoint[] { observStationEnvelope.LowerLeft, observStationEnvelope.LowerRight,
observStationEnvelope.UpperRight, observStationEnvelope.UpperLeft };
var observerPointGeometry = new PointClass
{
X = calcResult.ObservationPoint.X.Value,
Y = calcResult.ObservationPoint.Y.Value,
SpatialReference = EsriTools.Wgs84Spatialreference
};
observerPointGeometry.Project(activeView.FocusMap.SpatialReference);
observerPointGeometry.AddZCoordinate(raster);
observerPointGeometry.ZAware = true;
if (double.IsNaN(observerPointGeometry.Z))
{
throw new MilSpacePointOutOfRatserException(calcResult.ObservationPoint.Objectid, calcResult.RasterLayerName);
}
var minDistance = FindMinDistance(observStationEnvelopePoints, observerPointGeometry);
// ---- Get min and max azimuths ----
var points = EsriTools.GetPointsFromGeometries(new IGeometry[] { calcResult.ObservationStation },
observerPointGeometry.SpatialReference,
out isCircle).ToArray();
bool isPointInside = EsriTools.IsPointOnExtent(observStationEnvelope, observerPointGeometry);
// Set azimuth for circle polygon
if (isCircle && !isPointInside)
{
for (int i = 0; i < observStationEnvelopePoints.Length; i++)
{
var line = new Line()
{
FromPoint = observerPointGeometry,
ToPoint = observStationEnvelopePoints[i],
SpatialReference = observerPointGeometry.SpatialReference
};
if (i == 0)
{
maxDistance = line.Length;
}
else if (maxDistance < line.Length)
{
maxDistance = line.Length;
}
if (minAzimuth > line.PosAzimuth())
{
minAzimuth = line.PosAzimuth();
}
if (maxAzimuth < line.PosAzimuth())
{
maxAzimuth = line.PosAzimuth();
}
}
}
else
{
EsriTools.CreateDefaultPolylinesForFun(observerPointGeometry, points, new IGeometry[] { calcResult.ObservationStation },
isCircle, isPointInside, -1, out minAzimuth, out maxAzimuth, out maxDistance).ToList();
}
// ---- End. Get min and max azimuths ----
// observerPointGeometry.Project(activeView.FocusMap.SpatialReference);
var pointCopy = observerPointGeometry.CloneWithProjecting();
(pointCopy as PointClass).ZAware = true;
int idObserPooint = 0;
for (var currentHeight = calcResult.FromHeight; currentHeight <= calcResult.ToHeight; currentHeight += calcResult.Step)
{
double maxTiltAngle = -90;
double minTiltAngle = 90;
var height = currentHeight;
// Set parameters for case if point located into the polygon
if (isCircle && isPointInside)
{
minTiltAngle = -90;
minDistance = 0;
}
for (int i = 0; i < observStationEnvelopePoints.Length; i++)
{
var currentTitleAngle = EsriTools.FindAngleByDistanceAndHeight(height, observerPointGeometry, observStationEnvelopePoints[i], raster);
if (minTiltAngle > currentTitleAngle)
{
minTiltAngle = currentTitleAngle;
}
if (maxTiltAngle < currentTitleAngle)
{
maxTiltAngle = currentTitleAngle;
}
}
// Create observation point copy with changing height, distance and angles values
ObservationPoint currentObservationPoint = calcResult.ObservationPoint.ShallowCopy();
currentObservationPoint.RelativeHeight = currentHeight;
currentObservationPoint.AngelMinH = minTiltAngle;
currentObservationPoint.AngelMaxH = maxTiltAngle;
currentObservationPoint.AzimuthStart = minAzimuth;
currentObservationPoint.AzimuthEnd = maxAzimuth;
currentObservationPoint.InnerRadius = minDistance;
currentObservationPoint.OuterRadius = maxDistance;
currentObservationPoint.AzimuthMainAxis = calcResult.ObservationPoint.AzimuthMainAxis;
currentObservationPoint.Id = idObserPooint.ToString();
GdbAccess.Instance.AddObservPoint(pointCopy, currentObservationPoint, observPointTemporaryFeatureClass);
idObserPooint++;
}
return(observPointTemporaryFeatureClass);
}
