public List<List<double>> getDataAlongLine( datacontract.geojsonLine profileLine, int nrSamples = 30, CRS srs = CRS.WGS84)
{
client.Headers[HttpRequestHeader.ContentType] = "application/json";
Uri dhmUri = new Uri(baseUri + "DHMVMIXED/request/");
datacontract.dhmRequest dhmMsg = new datacontract.dhmRequest() {
Samples = nrSamples, LineString = profileLine, SrsIn= (int)srs , SrsOut= (int)srs };
string postData = JsonConvert.SerializeObject(dhmMsg);
byte[] byteArray = System.Text.Encoding.ASCII.GetBytes(postData);
byte[] byteResult = client.UploadData(dhmUri, "POST", byteArray);
string json = Encoding.ASCII.GetString(byteResult);
List<List<double>> response = JsonConvert.DeserializeObject<List<List<double>>>(json);
return response;
}
private void createGrapicAndZoomTo(string capakeyResponse, datacontract.geojson Geom)
{
IRgbColor inClr = new RgbColorClass() { Red = 0, Blue = 100, Green = 0 }; ;
IRgbColor outLine = new RgbColorClass() { Red = 0, Blue = 200, Green = 0, Transparency = 240 };
if (Geom.type == "MultiPolygon")
{
datacontract.geojsonMultiPolygon muniPolygons =
JsonConvert.DeserializeObject<datacontract.geojsonMultiPolygon>(capakeyResponse);
IGeometryCollection multiPoly = new GeometryBagClass();
clearGraphics();
foreach (datacontract.geojsonPolygon poly in muniPolygons.toPolygonList())
{
IPolygon lbPoly = geopuntHelper.geojson2esriPolygon(poly, (int)dataHandler.CRS.Lambert72);
lbPoly.SimplifyPreserveFromTo();
IGeometry prjGeom = geopuntHelper.Transform((IGeometry)lbPoly, map.SpatialReference);
IElement muniGrapic = geopuntHelper.AddGraphicToMap(map, prjGeom, inClr, outLine, 2, true);
graphics.Add(muniGrapic);
multiPoly.AddGeometry(prjGeom);
}
view.Extent = ((IGeometryBag)multiPoly).Envelope;
view.Refresh();
}
else if (Geom.type == "Polygon")
{
datacontract.geojsonPolygon municipalityPolygon =
JsonConvert.DeserializeObject<datacontract.geojsonPolygon>(capakeyResponse);
IPolygon lbPoly = geopuntHelper.geojson2esriPolygon(municipalityPolygon, (int)dataHandler.CRS.Lambert72);
lbPoly.SimplifyPreserveFromTo();
IPolygon prjPoly = (IPolygon)geopuntHelper.Transform((IGeometry)lbPoly, map.SpatialReference);
view.Extent = prjPoly.Envelope;
clearGraphics();
IElement muniGrapic = geopuntHelper.AddGraphicToMap(map, (IGeometry)prjPoly, inClr, outLine, 3, true);
graphics.Add(muniGrapic);
view.Refresh();
}
}
/// <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;
}
/// <summary>Convert a GoeJSON point 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 Point goemetry</returns>
public static IPoint geojson2esriPoint(datacontract.geojsonPoint JSpoint, int epsg = -1)
{
Type factoryType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
System.Object obj = Activator.CreateInstance(factoryType);
ISpatialReferenceFactory3 spatialReferenceFactory = obj as ISpatialReferenceFactory3;
IPoint esriPnt = new PointClass() { X = JSpoint.coordinates[0], Y = JSpoint.coordinates[1] };
if (epsg != -1)
{
ISpatialReference srs = spatialReferenceFactory.CreateSpatialReference(epsg);
esriPnt.SpatialReference = srs;
}
return esriPnt;
}
/// <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;
}
