public static void Run()
{
//ExStart: ExportSpatialReferenceSystemToWKT
var parameters = new ProjectedSpatialReferenceSystemParameters
{
Name = "WGS 84 / World Mercator",
Base = SpatialReferenceSystem.Wgs84,
ProjectionMethodName = "Mercator_1SP",
LinearUnit = Unit.Meter,
XAxis = new Axis("Easting", AxisDirection.East),
YAxis = new Axis("Northing", AxisDirection.North),
AxisesOrder = ProjectedAxisesOrder.XY,
};
parameters.AddProjectionParameter("central_meridian", 0);
parameters.AddProjectionParameter("scale_factor", 1);
parameters.AddProjectionParameter("false_easting", 0);
parameters.AddProjectionParameter("false_northing", 0);
var projectedSrs = SpatialReferenceSystem.CreateProjected(parameters, Identifier.Epsg(3395));
string wkt = projectedSrs.ExportToWkt();
Console.WriteLine(wkt);
//ExEnd: ExportSpatialReferenceSystemToWKT
}
private void Client_GetAllSitesCompleted(object sender, GetAllSitesCompletedEventArgs e)
{
if (e.Error != null)
{
CurrentAction = UserAction.Idle;
GeneralInfo.Content = "Failed to search sites";
return;
}
if (e.Result != null)
{
foreach (GraphicsLayer layer in _GraphicsLayers.Values)
{
layer.Graphics.Clear();
}
foreach (var s in e.Result)
{
Graphic graphic = new Graphic();
double[] lonlat = SpatialReferenceSystem.ToWebMercator(s.Longitude, s.Latitude);
graphic.Geometry = new MapPoint(lonlat[0], lonlat[1]);
graphic.Symbol = _MarkerSymbols[s.SiteType];;
graphic.Attributes.Add("Name", s.Name);
graphic.Attributes.Add("Site", s);
_GraphicsLayers[s.SiteType].Graphics.Add(graphic);
}
CurrentAction = UserAction.Idle;
GeneralInfo.Content = e.Result.Count + " sites found";
}
else
{
CurrentAction = UserAction.Idle;
GeneralInfo.Content = "No sites found";
}
}
public void Creat(GraphicsLayer layer, RegularGrid grid)
{
_GraphicsLayer = layer;
var cellsize = grid.CellSize * 0.5;
var polygon = new Polygon();
for (int i = 0; i < grid.NCell; i++)
{
var symbol = GetDefaultSymbol(polygon, System.Windows.Media.Colors.White);
ESRI.ArcGIS.Client.Geometry.PointCollection pc = new ESRI.ArcGIS.Client.Geometry.PointCollection();
var buf = SpatialReferenceSystem.ToWebMercator(grid.CentroidX[i] - cellsize, grid.CentroidY[i] + cellsize);
MapPoint p1 = new MapPoint(buf[0], buf[1]);
buf = SpatialReferenceSystem.ToWebMercator(grid.CentroidX[i] + cellsize, grid.CentroidY[i] + cellsize);
MapPoint p2 = new MapPoint(buf[0], buf[1]);
buf = SpatialReferenceSystem.ToWebMercator(grid.CentroidX[i] + cellsize, grid.CentroidY[i] - cellsize);
MapPoint p3 = new MapPoint(buf[0], buf[1]);
buf = SpatialReferenceSystem.ToWebMercator(grid.CentroidX[i] - cellsize, grid.CentroidY[i] - cellsize);
MapPoint p4 = new MapPoint(buf[0], buf[1]);
buf = SpatialReferenceSystem.ToWebMercator(grid.CentroidX[i] - cellsize, grid.CentroidY[i] + cellsize);
MapPoint p5 = new MapPoint(buf[0], buf[1]);
pc.Add(p1);
pc.Add(p2);
pc.Add(p3);
pc.Add(p4);
pc.Add(p5);
Graphic graphic = new Graphic();
Polygon ep = new Polygon();
ep.Rings.Add(pc);
graphic.Geometry = ep;
graphic.Symbol = symbol;
graphic.Attributes.Add("ID", i);
layer.Graphics.Add(graphic);
}
}
public static void Run()
{
//ExStart: CreateFromEpsgCode
var srs = SpatialReferenceSystem.CreateFromEpsg(26918);
Console.WriteLine("SRS Name: {0}", srs.Name); // NAD83 / UTM zone 18N
Console.WriteLine("SRS EPSG code: {0}", srs.EpsgCode); // 26918
Console.WriteLine("Datum name: {0}", srs.GeographicDatum.Name); // North_American_Datum_1983
Console.WriteLine("Datum EPSG code: {0}", srs.GeographicDatum.EpsgCode); // 6269
Console.WriteLine("Ellipsoid name: {0}", srs.GeographicDatum.Ellipsoid.Name); // GRS 1980
Console.WriteLine("Ellipsoid EPSG code: {0}", srs.GeographicDatum.EpsgCode); // 6269
Console.WriteLine("Type: {0}", srs.Type); // Projected
Console.WriteLine("Dimensions count: {0}", srs.DimensionsCount); // 2
Console.WriteLine("First dimension name: {0}", srs.GetAxis(0).Name); // X
Console.WriteLine("First dimension direction: {0}", srs.GetAxis(0).Direction); // East
Console.WriteLine("Second dimension name: {0}", srs.GetAxis(1).Name); // Y
Console.WriteLine("Second dimension direction: {0}", srs.GetAxis(1).Direction); // North
Console.WriteLine("First dimension unit: {0}, {1}", srs.GetUnit(0).Name, srs.GetUnit(0).Factor); // metre, 1
Console.WriteLine("Second dimension unit: {0}, {1}", srs.GetUnit(1).Name, srs.GetUnit(1).Factor); // metre, 1
//ExEnd: CreateFromEpsgCode
}
public T ToGeometry <T>() where T : Geometry
{
GeoJSONParser <T> geoJSONParser = (Object)srsId != null ?
new GeoJSONParser <T>(SpatialReferenceSystem.GetName(srsId), geomClass) :
new GeoJSONParser <T>(geomClass);
T result = (T)geoJSONParser.Read(this.geoJSON);
return(result);
}
public static void RenderToSpecificProjection()
{
//ExStart: RenderToSpecificProjection
using (var map = new Map(800, 400))
{
map.Add(VectorLayer.Open(dataDir + "land.shp", Drivers.Shapefile));
map.SpatialReferenceSystem = SpatialReferenceSystem.CreateFromEpsg(54024); // World Bonne
map.Render(dataDir + "land_out.svg", Renderers.Svg);
}
//ExEnd: RenderToSpecificProjection
}
public static void Run()
{
string dataDir = RunExamples.GetDataDir();
//ExStart: CreateVectorLayerWithSpatialReferenceSystem
var parameters = new ProjectedSpatialReferenceSystemParameters
{
Name = "WGS 84 / World Mercator",
Base = SpatialReferenceSystem.Wgs84,
ProjectionMethodName = "Mercator_1SP",
LinearUnit = Unit.Meter,
XAxis = new Axis("Easting", AxisDirection.East),
YAxis = new Axis("Northing", AxisDirection.North),
AxisesOrder = ProjectedAxisesOrder.XY,
};
parameters.AddProjectionParameter("central_meridian", 0);
parameters.AddProjectionParameter("scale_factor", 1);
parameters.AddProjectionParameter("false_easting", 0);
parameters.AddProjectionParameter("false_northing", 0);
var projectedSrs = SpatialReferenceSystem.CreateProjected(parameters, Identifier.Epsg(3395));
using (var layer = Drivers.Shapefile.CreateLayer(dataDir + "filepath_out.shp", new ShapefileOptions(), projectedSrs))
{
var feature = layer.ConstructFeature();
feature.Geometry = new Point(1, 2);
layer.Add(feature);
feature = layer.ConstructFeature();
feature.Geometry = new Point(1, 2)
{
SpatialReferenceSystem = SpatialReferenceSystem.Nad83
};
try
{
layer.Add(feature); // geometry of feature has different SRS - exception is thrown
}
catch (GisException e)
{
Console.WriteLine(e.Message);
}
}
using (var layer = Drivers.Shapefile.OpenLayer(dataDir + "filepath_out.shp"))
{
var srsName = layer.SpatialReferenceSystem.Name; // "WGS 84 / World Mercator"
layer.SpatialReferenceSystem.IsEquivalent(projectedSrs); // true
}
//ExEnd: CreateVectorLayerWithSpatialReferenceSystem
}
private void Map_MouseMove(object sender, MouseEventArgs e)
{
System.Windows.Point screenPoint = e.GetPosition(Map);
ESRI.ArcGIS.Client.Geometry.MapPoint mapPoint = Map.ScreenToMap(screenPoint);
if (Map.WrapAroundIsActive)
{
mapPoint = ESRI.ArcGIS.Client.Geometry.Geometry.NormalizeCentralMeridian(mapPoint) as ESRI.ArcGIS.Client.Geometry.MapPoint;
}
if (mapPoint != null)
{
var pt = SpatialReferenceSystem.ToGeographic(mapPoint.X, mapPoint.Y);
if (pt != null)
{
lonLabel.Content = pt[0].ToString("0.0000");
latLabel.Content = pt[1].ToString("0.0000");
}
}
}
public static void Run()
{
//ExStart: CreateFromWkt
string wkt = @"
GEOGCS[""WGS 84"",
DATUM[""WGS_1984"",
SPHEROID[""WGS 84"",6378137,298.257223563,
AUTHORITY[""EPSG"",""7030""]],
AUTHORITY[""EPSG"",""6326""]],
PRIMEM[""Greenwich"",0,
AUTHORITY[""EPSG"",""8901""]],
UNIT[""degree"",0.01745329251994328,
AUTHORITY[""EPSG"",""9122""]],
AUTHORITY[""EPSG"",""4326""]]
";
var srs = SpatialReferenceSystem.CreateFromWkt(wkt);
Console.WriteLine("SRS Name: {0}", srs.Name); // WGS 84
Console.WriteLine("SRS EPSG code: {0}", srs.EpsgCode); // 4326
Console.WriteLine("Datum name: {0}", srs.GeographicDatum.Name); // WGS_1984
Console.WriteLine("Datum EPSG code: {0}", srs.GeographicDatum.EpsgCode); // 6326
Console.WriteLine("Ellipsoid name: {0}", srs.GeographicDatum.Ellipsoid.Name); // WGS 84
Console.WriteLine("Ellipsoid EPSG code: {0}", srs.GeographicDatum.EpsgCode); // 7030
Console.WriteLine("Type: {0}", srs.Type); // Geographic
Console.WriteLine("Dimensions count: {0}", srs.DimensionsCount); // 2
Console.WriteLine("First dimension name: {0}", srs.GetAxis(0).Name); // Longitude
Console.WriteLine("First dimension direction: {0}", srs.GetAxis(0).Direction); // EAST
Console.WriteLine("Second dimension name: {0}", srs.GetAxis(1).Name); // Latitude
Console.WriteLine("Second dimension direction: {0}", srs.GetAxis(1).Direction); // NORTH
Console.WriteLine("First dimension unit: {0}, {1}", srs.GetUnit(0).Name, srs.GetUnit(0).Factor); // degree, 0.01745...
Console.WriteLine("Second dimension unit: {0}, {1}", srs.GetUnit(1).Name, srs.GetUnit(1).Factor); // degree, 0.01745...
var geogSrs = srs.AsGeographic;
Console.WriteLine("Angular unit: {0}, {1}", geogSrs.AngularUnit.Name, geogSrs.AngularUnit.Factor); // degree, 0.01745...
Console.WriteLine("Prime meridian: {0}, {1}", geogSrs.PrimeMeridian.Name, geogSrs.PrimeMeridian.Longitude); // Greenwich, 0
//ExEnd: CreateFromWkt
}
public static void Run()
{
//ExStart: CompareSpatialReferenceSystems
string wkt = @"
GEOGCS[""WGS 84"",
DATUM[""WGS_1984"",
SPHEROID[""WGS 84"",6378137,298.257223563,
AUTHORITY[""EPSG"",""7030""]],
AUTHORITY[""EPSG"",""6326""]],
PRIMEM[""Greenwich"",0,
AUTHORITY[""EPSG"",""8901""]],
UNIT[""degree"",0.01745329251994328,
AUTHORITY[""EPSG"",""9122""]],
AUTHORITY[""EPSG"",""4326""]]
";
var srs = SpatialReferenceSystem.CreateFromWkt(wkt);
srs.IsEquivalent(SpatialReferenceSystem.Wgs84); // true
//ExEnd: CompareSpatialReferenceSystems
}
public static void Run()
{
string dataDir = RunExamples.GetDataDir();
string path = dataDir + "SpecifyLayerSpatialReference_out.shp";
//ExStart: SpecifyLayerSpatialReference
var srs = SpatialReferenceSystem.CreateFromEpsg(26918);
using (VectorLayer layer = VectorLayer.Create(path, Drivers.Shapefile, srs))
{
var feature = layer.ConstructFeature();
feature.Geometry = new Point(60, 24);
layer.Add(feature);
}
using (VectorLayer layer = VectorLayer.Open(path, Drivers.Shapefile))
{
Console.WriteLine(layer.SpatialReferenceSystem.EpsgCode); // 26918
Console.WriteLine(layer.SpatialReferenceSystem.Name); // NAD83_UTM_zone_18N
}
//ExEnd: SpecifyLayerSpatialReference
}
void IConfig.SetReferenceSystem(SpatialReferenceSystem id)
{
SetReferenceSystem(id);
}
private static void SetReferenceSystem(SpatialReferenceSystem spatialReference)
{
_spatialReferenceSystemId = (int)spatialReference;
}
private static void SetReferenceSystem(SpatialReferenceSystem spatialReference)
{
_spatialReferenceSystemId = (int)spatialReference;
}
void IConfig.SetReferenceSystem(SpatialReferenceSystem id)
{
SetReferenceSystem(id);
}
