public IPolygon BoundingPolygon(IList <IPoint> pList, ISpatialReference spatialrefrence)
{
try
{
IGeometryBridge2 pGeoBrg = new GeometryEnvironment() as IGeometryBridge2;
IPointCollection4 pPointColl = (IPointCollection4) new Multipoint(); // edited here
int numPoints = pList.Count;
WKSPoint[] aWKSPointBuffer = new WKSPoint[numPoints];
for (int i = 0; i < pList.Count; i++)
{
WKSPoint A = new WKSPoint();
A.X = pList[i].X;
A.Y = pList[i].Y;
aWKSPointBuffer[i] = A;
}
pGeoBrg.SetWKSPoints(pPointColl, ref aWKSPointBuffer);
// edits here
IGeometry pGeom = (IMultipoint)pPointColl;
pGeom.SpatialReference = spatialrefrence;
ITopologicalOperator pTopOp = (ITopologicalOperator)pGeom;
IPolygon pPointColl2 = (IPolygon)pTopOp.ConvexHull();
pPointColl2.SpatialReference = spatialrefrence;
// OutputPolygon = pPointColl2; maybe you don't need this line as the object is not used
return(pPointColl2);
}
catch (Exception e)
{
return(null);
}
}
/// <summary>Convert a GeoJSON Polygon geometry to Arcgis Geometry </summary>
/// <param name="JSpoint">The deserialised GeoJson Object</param>
/// <param name="epsg">The EPSG-code of the spatial reference, -1 is unknown</param>
/// <returns>A Arcgis Polygon goemetry</returns>
public static IPolygon geojson2esriPolygon(datacontract.geojsonPolygon JSPolygon, int epsg = -1)
{
Type factoryType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
System.Object obj = Activator.CreateInstance(factoryType);
ISpatialReferenceFactory3 spatialReferenceFactory = obj as ISpatialReferenceFactory3;
IGeometryBridge2 pGeoBrg = new GeometryEnvironment() as IGeometryBridge2;
IGeometryCollection esriGeometryCol = new PolygonClass();
for (int n = 0; n < JSPolygon.coordinates.Count; n++)
{
List<List<double>> JSring = JSPolygon.coordinates[n];
IPointCollection4 ring = new RingClass();
ESRI.ArcGIS.esriSystem.WKSPoint[] aWKSPointBuffer = new ESRI.ArcGIS.esriSystem.WKSPoint[JSring.Count];
for (int i = 0; i < JSring.Count; i++)
{
double[] xy = JSring[i].ToArray();
aWKSPointBuffer[i].X = xy[0];
aWKSPointBuffer[i].Y = xy[1];
}
pGeoBrg.SetWKSPoints(ring , aWKSPointBuffer);
esriGeometryCol.AddGeometry(ring as IGeometry, Type.Missing, Type.Missing);
}
IPolygon esriPolygon = esriGeometryCol as IPolygon;
if (epsg != -1)
{
ISpatialReference srs = spatialReferenceFactory.CreateSpatialReference(epsg);
esriPolygon.SpatialReference = srs;
}
return esriPolygon;
}
private static void CreateFeatures(List<GdbFromKmlFeature> gdbFeaturesFromKML)
{
License lic = new License();
IWorkspaceEdit wse = null;
try
{
bool ok = lic.GetLicenses();
IFeatureWorkspace fws = (IFeatureWorkspace)GetWorkspace(); // cast this as an IWorkspace
wse = (IWorkspaceEdit)fws;
wse.StartEditing(false);
wse.StartEditOperation();
IFeatureClass waypointFC = fws.OpenFeatureClass("WAYPOINT");
IFeatureClass trailFC = fws.OpenFeatureClass("TRAIL");
ISpatialReference spatRef = ((IGeoDataset)waypointFC.FeatureDataset).SpatialReference;
int counter = 0;
foreach (GdbFromKmlFeature gdbFe in gdbFeaturesFromKML)
{
if (gdbFe.IsPoint)
{
/*var newWayPoint = waypointFC.CreateFeature();
newWayPoint.set_Value(newWayPoint.Fields.FindField("NAME"), gdbFe.Name);
newWayPoint.set_Value(newWayPoint.Fields.FindField("SHORTDESCRIPTION"), gdbFe.Description);
newWayPoint.set_Value(newWayPoint.Fields.FindField("SUBTYPE"), 4);
double lat = Convert.ToDouble(gdbFe.Coordinates[0][1]);
double lon = Convert.ToDouble(gdbFe.Coordinates[0][0]);
double elev = Convert.ToDouble(gdbFe.Coordinates[0][2]);
newWayPoint.set_Value(newWayPoint.Fields.FindField("LATITUDE"), lat);
newWayPoint.set_Value(newWayPoint.Fields.FindField("LONGITUDE"), lon);
newWayPoint.set_Value(newWayPoint.Fields.FindField("ELEVATION"), elev);
ToWebMercator(ref lon, ref lat);
IPoint pnt = new PointClass();
pnt.PutCoords(lon, lat);
pnt.SpatialReference = spatRef;
newWayPoint.Shape = pnt;
newWayPoint.Store();*/
}
else
{
Console.WriteLine(counter);
var newTrail = trailFC.CreateFeature();
newTrail.set_Value(newTrail.Fields.FindField("SEGMENT"), gdbFe.Name);
//newTrail.set_Value(newTrail.Fields.FindField("SHORTDESCRIPTION"), gdbFe.Description);
newTrail.set_Value(newTrail.Fields.FindField("SUBTYPE"), 1);
//Define shape
IGeometryBridge2 pGeoBrg = new GeometryEnvironment() as IGeometryBridge2;
IPointCollection4 pPointColl = new PolylineClass();
((IGeometry)pPointColl).SpatialReference = spatRef;
int vertexCount = gdbFe.Coordinates.Count;
WKSPoint[] aWKSPointBuffer = new WKSPoint[vertexCount];
int i = 0;
foreach(string[] vertex in gdbFe.Coordinates)
{
double lat = Convert.ToDouble(vertex[1]);
double lon = Convert.ToDouble(vertex[0]);
double elev = Convert.ToDouble(vertex[2]);
ToWebMercator(ref lon, ref lat);
aWKSPointBuffer[i] = new WKSPoint() { X = lon, Y = lat };
i++;
}
pGeoBrg.SetWKSPoints(pPointColl, ref aWKSPointBuffer);
newTrail.Shape = (IGeometry) pPointColl;
newTrail.Store();
}
counter++;
if (counter % 100 == 0)
{
wse.StopEditOperation();
wse.StopEditing(true);
wse.StartEditing(false);
wse.StartEditOperation();
}
}
}
finally
{
wse.StopEditOperation();
wse.StopEditing(true);
lic.ReleaseLicenses();
}
}
/// <summary>Convert a GeoJSON Line geometry to Arcgis Geometry </summary>
/// <param name="JSpoint">The deserialised GeoJson Object</param>
/// <param name="epsg">The EPSG-code of the spatial reference, -1 is unknown</param>
/// <returns>A Arcgis PolyLine goemetry</returns>
public static IPolyline geojson2esriLine(datacontract.geojsonLine JSline, int epsg = -1)
{
Type factoryType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
System.Object obj = Activator.CreateInstance(factoryType);
ISpatialReferenceFactory3 spatialReferenceFactory = obj as ISpatialReferenceFactory3;
IGeometryBridge2 pGeoBrg = new GeometryEnvironment() as IGeometryBridge2;
ESRI.ArcGIS.esriSystem.WKSPoint[] aWKSPointBuffer = new ESRI.ArcGIS.esriSystem.WKSPoint[ JSline.coordinates.Count ];
for (int n = 0; n < JSline.coordinates.Count; n++)
{
double[] xy = JSline.coordinates[n].ToArray();
aWKSPointBuffer[n].X = xy[0];
aWKSPointBuffer[n].Y = xy[1];
}
IPolyline esriLine = new PolylineClass();
pGeoBrg.SetWKSPoints(esriLine as IPointCollection4, aWKSPointBuffer);
if (epsg != -1)
{
ISpatialReference srs = spatialReferenceFactory.CreateSpatialReference(epsg);
esriLine.SpatialReference = srs;
}
return esriLine;
}
