public void BuildLineString()
{
GeographyLineString ls = GeographyFactory.LineString(NonDefaultGeographicCoords, 10, 20, 30, 40).LineTo(20, 30, 40, 50);
Assert.AreEqual(NonDefaultGeographicCoords, ls.CoordinateSystem);
ls.VerifyAsLineString(new PositionData(10, 20, 30, 40), new PositionData(20, 30, 40, 50));
ls = GeographyFactory.LineString(NonDefaultGeographicCoords, 10, 20).LineTo(20, 30);
Assert.AreEqual(NonDefaultGeographicCoords, ls.CoordinateSystem);
ls.VerifyAsLineString(new PositionData(10, 20), new PositionData(20, 30));
ls = GeographyFactory.LineString(10, 20, 30, 40).LineTo(20, 30, 40, 50);
Assert.AreEqual(CoordinateSystem.DefaultGeography, ls.CoordinateSystem);
ls.VerifyAsLineString(new PositionData(10, 20, 30, 40), new PositionData(20, 30, 40, 50));
ls = GeographyFactory.LineString(10, 20).LineTo(20, 30);
Assert.AreEqual(CoordinateSystem.DefaultGeography, ls.CoordinateSystem);
ls.VerifyAsLineString(new PositionData(10, 20), new PositionData(20, 30));
ls = GeographyFactory.LineString();
Assert.AreEqual(CoordinateSystem.DefaultGeography, ls.CoordinateSystem);
ls.VerifyAsLineString(null);
ls = GeographyFactory.LineString(NonDefaultGeographicCoords);
Assert.AreEqual(NonDefaultGeographicCoords, ls.CoordinateSystem);
ls.VerifyAsLineString(null);
ls = GeographyFactory.LineString().LineTo(10, 20).LineTo(20, 30);
ls.VerifyAsLineString(new PositionData(10, 20), new PositionData(20, 30));
}
public void CreateGeographyPolygon()
{
GeographyPolygon polygon = GeographyFactory
.Polygon()
.Ring(0.0, 0.0)
.LineTo(1.0, 0.0)
.LineTo(1.0, 1.0)
.LineTo(0.0, 1.0)
.LineTo(0.0, 0.0);
GeographyPolygonProxy proxy = new GeographyPolygonProxy(polygon);
Assert.AreSame(polygon, proxy.Value);
Assert.AreEqual(1, proxy.Rings.Count);
GeographyLineString line0 = polygon.Rings[0];
GeographyLineStringProxy proxyLine0 = proxy.Rings[0];
Assert.AreSame(line0, proxyLine0.Value);
Assert.AreEqual(5, line0.Points.Count);
Assert.AreEqual(line0.Points.Count, proxyLine0.Points.Count);
for (int i = 0; i < line0.Points.Count; i++)
{
Assert.AreEqual(line0.Points[i].Latitude, proxyLine0.Points[i].Latitude);
Assert.AreEqual(line0.Points[i].Longitude, proxyLine0.Points[i].Longitude);
}
}
public static double GetLength(GeographyLineString line)
{
if (line == null)
{
throw new ArgumentNullException("line");
}
return(line.Length().Value);
}
private static void WriteLineStringCoordinates(JsonWriter writer, GeographyLineString lineString)
{
writer.WriteStartArray();
foreach (var point in lineString.Points)
{
WritePointCoordinates(writer, point);
}
writer.WriteEndArray();
}
private static void WriteGeography(
this Utf8JsonWriter writer,
GeographyLineString geography)
{
writer.WriteStartObject();
writer.WriteString(s_TypePropertyNameBytes, GeoJsonConstants.LineStringTypeName);
WritePointArray(writer, geography.Points, s_CoordinatesPropertyNameBytes);
writer.WriteEndObject();
}
public static GeographyLineString Create(this GeographyFactory <GeographyLineString> factory, List <GeographyPoint> points)
{
if (points.Count < 2)
{
throw new JsonSerializationException($"Deserialization failed: GeoJson type '{GeoJsonConstants.LineStringTypeName}' must contain at least two points.");
}
foreach (GeographyPoint point in points)
{
factory = factory.LineTo(point.Latitude, point.Longitude);
}
GeographyLineString result = factory.Build();
return(result);
}
/// <summary>
/// Converts a Microsoft.Spatial GeographyLineString to an NTS LineString.
/// </summary>
/// <param name="lineString">The Microsoft.Spatial GeographyLineString.</param>
/// <returns></returns>
public static LineString ToNtsLineString(this GeographyLineString lineString)
{
if (lineString == null)
{
return(null);
}
var coords = new List <Coordinate>();
foreach (var coord in lineString.Points)
{
coords.Add(new Coordinate(coord.Longitude, coord.Latitude));
}
var ntsLineString = GeographyFactory.CreateLineString(coords.ToArray());
return((LineString)ntsLineString);
}
/// <summary>
/// Convert a DbGeography to Edm GeographyPoint
/// </summary>
/// <param name="geography"> The DbGeography to be converted</param>
/// <returns>A Edm GeographyLineString</returns>
public static GeographyLineString ToGeographyLineString(this DbGeography geography)
{
if (geography == null)
{
return(null);
}
if (geography.SpatialTypeName != GeographyTypeNameLineString)
{
throw new InvalidOperationException(string.Format(
CultureInfo.InvariantCulture,
Resources.InvalidLineStringGeographyType,
geography.SpatialTypeName));
}
SpatialBuilder builder = SpatialBuilder.Create();
GeographyPipeline pipleLine = builder.GeographyPipeline;
pipleLine.SetCoordinateSystem(CoordinateSystem.DefaultGeography);
pipleLine.BeginGeography(SpatialType.LineString);
int numPoints = geography.PointCount ?? 0;
if (numPoints > 0)
{
DbGeography point = geography.PointAt(1);
pipleLine.BeginFigure(new GeographyPosition(
point.Latitude ?? 0, point.Latitude ?? 0, point.Elevation, point.Measure));
for (int n = 2; n <= numPoints; n++)
{
point = geography.PointAt(n);
pipleLine.LineTo(new GeographyPosition(
point.Latitude ?? 0, point.Latitude ?? 0, point.Elevation, point.Measure));
}
pipleLine.EndFigure();
}
pipleLine.EndGeography();
GeographyLineString lineString = (GeographyLineString)builder.ConstructedGeography;
return(lineString);
}
private static IEnumerable GetMicrosoftSpatialPolygonsData()
{
GeographyLineString line = GeographyFactory
.LineString(0, 0)
.LineTo(1, 0)
.LineTo(1, 1)
.LineTo(0, 0);
yield return new TestCaseData(line).Returns("geo.intersects(Foo, geography'POLYGON((0 0,0 1,1 1,0 0))')");
GeographyPolygon polygon = GeographyFactory
.Polygon()
.Ring(0, 0)
.LineTo(1, 0)
.LineTo(1, 1)
.LineTo(0, 0);
yield return new TestCaseData(polygon).Returns("geo.intersects(Foo, geography'POLYGON((0 0,0 1,1 1,0 0))')");
}
internal static void SendFigure(this GeographyLineString lineString, GeographyPipeline pipeline)
{
ReadOnlyCollection <GeographyPoint> points = lineString.Points;
for (int i = 0; i < points.Count; i++)
{
if (i == 0)
{
pipeline.BeginFigure(new GeographyPosition(points[i].Latitude, points[i].Longitude, points[i].Z, points[i].M));
}
else
{
pipeline.LineTo(new GeographyPosition(points[i].Latitude, points[i].Longitude, points[i].Z, points[i].M));
}
}
if (points.Count > 0)
{
pipeline.EndFigure();
}
}
public void CreateGeographyLineString()
{
GeographyLineString line = GeographyFactory
.LineString(0.0, 0.0)
.LineTo(1.0, 0.0)
.LineTo(1.0, 1.0)
.LineTo(0.0, 1.0)
.LineTo(0.0, 0.0);
GeographyLineStringProxy proxy = new GeographyLineStringProxy(line);
Assert.AreSame(line, proxy.Value);
Assert.AreEqual(5, line.Points.Count);
Assert.AreEqual(line.Points.Count, proxy.Points.Count);
for (int i = 0; i < line.Points.Count; i++)
{
Assert.AreEqual(line.Points[i].Latitude, proxy.Points[i].Latitude);
Assert.AreEqual(line.Points[i].Longitude, proxy.Points[i].Longitude);
}
}
/// <summary>
/// Convert a Edm GeographyLineString to DbGeography
/// </summary>
/// <param name="lineString">The Edm GeographyLineString to be converted</param>
/// <returns>A DbGeography</returns>
public static DbGeography ToDbGeography(this GeographyLineString lineString)
{
if (lineString == null)
{
return(null);
}
StringBuilder sb = new StringBuilder("LINESTRING(");
int n = 0;
foreach (var pt in lineString.Points)
{
double lat = pt.Latitude;
double lon = pt.Longitude;
double?alt = pt.Z;
double?m = pt.M;
string pointStr = lat.ToString(DefaultCulture) + " " + lon.ToString(DefaultCulture);
if (alt != null)
{
pointStr += " " + alt.Value;
}
if (m != null)
{
pointStr += " " + m.Value;
}
sb.Append(pointStr);
n++;
if (n != lineString.Points.Count)
{
sb.Append(",");
}
}
sb.Append(")");
return(DbGeography.FromText(sb.ToString()));
}
static ODataSpatialTypeUtil()
{
// Geometry type values.
GeometryValue = GeometryFactory.Point(32.0, -10.0).Build();
GeometryPointValue = GeometryFactory.Point(33.1, -11.0).Build();
GeometryLineStringValue = GeometryFactory.LineString(33.1, -11.5).LineTo(35.97, -11).Build();
GeometryPolygonValue = GeometryFactory.Polygon().Ring(33.1, -13.6).LineTo(35.97, -11.15).LineTo(11.45, 87.75).Ring(35.97, -11).LineTo(36.97, -11.15).LineTo(45.23, 23.18).Build();
GeometryCollectionValue = GeometryFactory.Collection().Point(-19.99, -12.0).Build();
GeometryMultiPointValue = GeometryFactory.MultiPoint().Point(10.2, 11.2).Point(11.9, 11.6).Build();
GeometryMultiLineStringValue = GeometryFactory.MultiLineString().LineString(10.2, 11.2).LineTo(11.9, 11.6).LineString(16.2, 17.2).LineTo(18.9, 19.6).Build();
GeometryMultiPolygonValue = GeometryFactory.MultiPolygon().Polygon().Ring(10.2, 11.2).LineTo(11.9, 11.6).LineTo(11.45, 87.75).Ring(16.2, 17.2).LineTo(18.9, 19.6).LineTo(11.45, 87.75).Build();
// Geography type values.
GeographyValue = GeographyFactory.Point(32.0, -100.0).Build();
GeographyPointValue = GeographyFactory.Point(33.1, -110.0).Build();
GeographyLineStringValue = GeographyFactory.LineString(33.1, -110.0).LineTo(35.97, -110).Build();
GeographyPolygonValue = GeographyFactory.Polygon().Ring(33.1, -110.0).LineTo(35.97, -110.15).LineTo(11.45, 87.75).Ring(35.97, -110).LineTo(36.97, -110.15).LineTo(45.23, 23.18).Build();
GeographyCollectionValue = GeographyFactory.Collection().Point(-19.99, -12.0).Build();
GeographyMultiPointValue = GeographyFactory.MultiPoint().Point(10.2, 11.2).Point(11.9, 11.6).Build();
GeographyMultiLineStringValue = GeographyFactory.MultiLineString().LineString(10.2, 11.2).LineTo(11.9, 11.6).LineString(16.2, 17.2).LineTo(18.9, 19.6).Build();
GeographyMultiPolygonValue = GeographyFactory.MultiPolygon().Polygon().Ring(10.2, 11.2).LineTo(11.9, 11.6).LineTo(11.45, 87.75).Ring(16.2, 17.2).LineTo(18.9, 19.6).LineTo(11.45, 87.75).Build();
}
private static IEnumerable GetMicrosoftSpatialPolygonsThrowsData()
{
// Require >= 4 points.
GeographyLineString line = GeographyFactory
.LineString(0, 0)
.LineTo(1, 1);
yield return new TestCaseData(
line,
"A GeographyLineString must have at least four Points to form a searchable polygon.");
// Requires that first and last points are the same.
line = GeographyFactory
.LineString(0, 0)
.LineTo(0, 0)
.LineTo(0, 0)
.LineTo(1, 1);
yield return new TestCaseData(
line,
"A GeographyLineString must have matching first and last Points to form a searchable polygon.");
// Require that polygons define exactly 1 ring.
GeographyPolygon polygon = GeographyFactory
.Polygon()
.Ring(0, 0)
.LineTo(0, 1)
.LineTo(1, 1)
.LineTo(0, 0)
.Ring(2, 2)
.LineTo(2, 3)
.LineTo(3, 3)
.LineTo(2, 2);
yield return new TestCaseData(
polygon,
"A GeographyPolygon must have exactly one Rings to form a searchable polygon.");
}
private static GeographyFactory <GeographyCollection> Add(this GeographyFactory <GeographyCollection> factory, GeographyLineString lineString)
{
factory = factory.LineString();
foreach (GeographyPoint point in lineString.Points)
{
factory = factory.LineTo(point.Latitude, point.Longitude);
}
return(factory);
}
