public Boolean STIntersect(Geospatial x)
{
if (_innerValue != null && x.InnerValue != null &&
!_innerValue.ToString().Equals(EMPTY_GEOGRAPHY) &&
!x.InnerValue.ToString().Equals(EMPTY_GEOGRAPHY))
{
try
{
return(NTSGeographyWrapper.STIntersects(_innerValue, x.InnerValue));
}
catch (Exception ex)
{
GXLogging.Debug(log, "Error calling Intersect() exception:");
GXLogging.Debug(log, ex.ToString());
return(false);
}
}
else
{
if (_innerValue == null)
{
GXLogging.Debug(log, "STIntersect: _innerValue is not valid");
}
else
{
GXLogging.Debug(log, "STIntersect: x.InnerValue is not valid");
}
return(false);
}
}
public double STDistance(Geospatial x)
{
if (_innerValue != null && x.InnerValue != null &&
!_innerValue.ToString().Equals(EMPTY_GEOGRAPHY) &&
!x.InnerValue.ToString().Equals(EMPTY_GEOGRAPHY))
{
try
{
return(NTSGeographyWrapper.STDistance(_innerValue, x.InnerValue));
}
catch (Exception ex)
{
GXLogging.Debug(log, "Error calling Distance() exception:");
GXLogging.Debug(log, ex.ToString());
return(0);
}
}
else
{
if (_innerValue == null)
{
GXLogging.Debug(log, "STDistance: _innerValue is not valid");
}
else
{
GXLogging.Debug(log, "STDistance: x.InnerValue is not valid");
}
return(0);
}
}
public Geospatial(String value)
{
String s = value.ToString();
initInstanceVars();
this.FromString(s);
// serttype
this.setGXGeoType(NTSGeographyWrapper.STGeometryType(_innerValue).ToString());
}
public void FromString(String s)
{
if (IsGeoNull(s))
{
geoText = EMPTY_GEOMETRY;
}
else
{
geoText = s.Trim();
}
try
{
// Parse
_innerValue = NTSGeographyWrapper.Parse(geoText);
// SRID, Type & Points X, Y
if ((!NTSGeographyWrapper.IsValid(_innerValue)) && _innerValue != null)
{
//_innerValue = NTSGeographyWrapper.MakeValid(_innerValue);
}
this.srid = NTSGeographyWrapper.Srid(_innerValue);
this.setGXGeoType(NTSGeographyWrapper.STGeometryType(_innerValue).ToString());
if (GeographicType == GeoGraphicTypeValue.Point)
{
this.Point.Longitude = NTSGeographyWrapper.Long(_innerValue);
this.Point.Latitude = NTSGeographyWrapper.Lat(_innerValue);
}
}
catch (Exception ex)
{
if (!String.IsNullOrEmpty(ex.ToString()) && ex.HResult == -2146232832 && ex.Message.Contains("Unknown Type"))
{
if (GeographicType == GeoGraphicTypeValue.Point && !String.IsNullOrEmpty(geoText))
{
_innerValue = Geospatial.FromGXLocation(geoText);
}
else
{
// Cannot parse value
_innerValue = NTSGeographyWrapper.NullSQLGeography;
this.geoText = "";
this.Point.Longitude = 0;
this.Point.Latitude = 0;
}
}
else
{
// Cannot parse value
_innerValue = NTSGeographyWrapper.NullSQLGeography;
this.geoText = "";
this.Point.Longitude = 0;
this.Point.Latitude = 0;
}
}
}
static PolygonResult STPolygonResult(Geometry instance, bool IsLine)
{
Geodesic g = Geodesic.WGS84;
var line = new GeographicLib.PolygonArea(g, IsLine);
int points = NTSGeographyWrapper.STNumPoinst(instance);
for (int i = 1; i < points; i++)
{
Coordinate currentPoint = NTSGeographyWrapper.STPoints(instance)[i];
line.AddPoint(currentPoint.Y, currentPoint.X);
}
PolygonResult r = line.Compute();
return(r);
}
public Geospatial(object value)
{
Geospatial geo = value as Geospatial;
if (geo != null)
{
this.InnerValue = geo.InnerValue;
// settype
this.setGXGeoType(NTSGeographyWrapper.STGeometryType(_innerValue).ToString());
this.srid = geo.srid;
}
else
{
String s = value.ToString();
new Geospatial(s);
}
}
public static Geospatial FromGXLocation(String geoText)
{
Geospatial geo = new Geospatial();
if (!String.IsNullOrEmpty(geoText))
{
if (geoText.Contains("."))
{
// has . as decimal separator and "," as value sep
geoText = geoText.Replace(',', ' ');
}
else
{
// has comma as DS and space as value sep
geoText = geoText.Replace(',', '.');
}
try
{
String[] coord = geoText.Split(new char[] { ' ' }, 2);
geo.Point.Longitude = Convert.ToDouble(coord[1].Trim(), CultureInfo.InvariantCulture.NumberFormat);
geo.Point.Latitude = Convert.ToDouble(coord[0].Trim(), CultureInfo.InvariantCulture.NumberFormat);
geo.srid = 4326;
// Latitude and Longitud parameters are reversed in the 'Point' constructor:
// construct a point object
String wkt = $"POINT({geo.Point.Longitude.ToString("F6")} {geo.Point.Latitude.ToString("F6")})";
geo.InnerValue = NTSGeographyWrapper.STGeomFromText(wkt, geo.Srid);
}
catch (Exception)
{
// Can't convert to geography set as null.
// set innerval
geo.InnerValue = NTSGeographyWrapper.NullSQLGeography;
geo.geoText = "";
geo.Point.Longitude = 0;
geo.Point.Latitude = 0;
}
}
return(geo);
}
public double STArea()
{
// HARD calculo area
if (_innerValue != null &&
!_innerValue.ToString().Equals(EMPTY_GEOGRAPHY) &&
GeographicType == GeoGraphicTypeValue.Polygon)
{
try
{
return(NTSGeographyWrapper.STArea(_innerValue));
}
catch (Exception ex)
{
GXLogging.Debug(log, "Error calling Area() exception:");
GXLogging.Debug(log, ex.ToString());
return(0);
}
}
else
{
GXLogging.Debug(log, "STArea: _innerValue is not valid");
return(0);
}
}
ArrayList geoToArray(String geoType, Object geoInstance)
{
ArrayList ArrayOfPoints = new ArrayList();
if (geoType.Equals("MultiPoint") || geoType.Equals("LineString"))
{
int points = NTSGeographyWrapper.STNumPoinst(geoInstance);
for (int i = 1; i < points; i++)
{
double[] CurrentPoint = new double[2];
Coordinate currentPoint = NTSGeographyWrapper.STPoints(geoInstance)[i];
// lat y long
CurrentPoint[0] = currentPoint.X;
CurrentPoint[1] = currentPoint.Y;
ArrayOfPoints.Add(CurrentPoint);
}
}
else if (geoType.Equals("Point"))
{
ArrayOfPoints.Add(NTSGeographyWrapper.Long(geoInstance));
ArrayOfPoints.Add(NTSGeographyWrapper.Lat(geoInstance));
}
else if (geoType.Equals("Polygon"))
{
int rings = NTSGeographyWrapper.STNumRings(geoInstance);
for (int j = 0; j < rings; j++)
{
ArrayList RingArray = new ArrayList();
object currentRing = NTSGeographyWrapper.STRingN(geoInstance, j);
int p = NTSGeographyWrapper.STNumPoinst(currentRing);
for (int i = 0; i < p; i++)
{
double[] CurrentPoint = new double[2];
Coordinate currentPoint = NTSGeographyWrapper.STPoints(currentRing)[i];
CurrentPoint[0] = currentPoint.X;
CurrentPoint[1] = currentPoint.Y;
RingArray.Add(CurrentPoint);
}
ArrayOfPoints.Add(RingArray);
}
}
else if (geoType.Equals("MultiLineString"))
{
int geoms = NTSGeographyWrapper.STNumGeometries(geoInstance);
for (int j = 0; j < geoms; j++)
{
object currentgeom = NTSGeographyWrapper.STGeometryN(geoInstance, j);
ArrayOfPoints.Add(geoToArray("LineString", currentgeom));
}
}
else if (geoType.Equals("MultiPolygon"))
{
int geoms = NTSGeographyWrapper.STNumGeometries(geoInstance);
for (int j = 1; j < geoms; j++)
{
object currentgeom = NTSGeographyWrapper.STGeometryN(geoInstance, j);
ArrayOfPoints.Add(geoToArray("Polygon", currentgeom));
}
}
return(ArrayOfPoints);
}
internal static object STGeomFromText(string geoText, int sRID)
{
return(NTSGeographyWrapper.Parse("SRID=" + sRID.ToString() + ";" + geoText));
}
internal static object GeometryParse(String geoText)
{
return(NTSGeographyWrapper.Parse(geoText));
}
