public static string latlongCoordinates(IFeatureClass SiteLayer)
{
// Get the feature and its geometry given an Object ID.
IFeature stateFeature = SiteLayer.GetFeature(0);
IGeometry shapeGeometry = stateFeature.Shape;
IArea pArea;
pArea = shapeGeometry as IArea;
IPoint pPoint;
pPoint = pArea.Centroid;
IGeometry pGeometry = (IGeometry)pPoint;
ISpatialReferenceFactory pSpatFactory = new SpatialReferenceEnvironment();
IGeographicCoordinateSystem pGeoSystem = pSpatFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_NAD1983);
ISpatialReference pSpatReference = (ISpatialReference)pGeoSystem;
pSpatReference.SetFalseOriginAndUnits(-180, -90, 1000000);
pGeometry.Project(pSpatReference);
double Longitude = Math.Abs(pPoint.X);
double Latitude = Math.Abs(pPoint.Y);
return(Longitude.ToString("#.######") + "° W, " + Latitude.ToString("#.######") + "° N");
}
public void Test()
{
//Create source spatial reference.
Type factoryType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
System.Object obj = Activator.CreateInstance(factoryType);
ISpatialReferenceFactory3 spatialReferenceFactory = obj as ISpatialReferenceFactory3;
ISpatialReference spatialReference = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)
esriSRGeoCSType.esriSRGeoCS_WGS1984);
spatialReference.SetFalseOriginAndUnits(-80.0000000232831, 39.9999999767169, 42949672.9);
//Create an envelope and define its spatial reference.
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(-68.6076204314651, 49.6186709634653, -68.5531907607304, 49.6530789785679);
envelope.SpatialReference = spatialReference;
//Destination spatial reference.
ISpatialReference projectedCoordinateSystem = spatialReferenceFactory.CreateProjectedCoordinateSystem((int)
esriSRProjCSType.esriSRProjCS_NAD1927UTM_19N);
//Define the XYDomain equivalent to SetFalseOriginAndUnits.
projectedCoordinateSystem.SetDomain(500000, 600000, 5300000, 5600000);
String report = "Print envelope coordinates before projection:\n" +
envelope.XMin + " , " + envelope.YMin + " , " + envelope.XMax + " , " +
envelope.YMax + "\n\n\n";
//Project envelope.
IGeometry geometry = envelope as IGeometry2;
geometry.Project(projectedCoordinateSystem as ISpatialReference);
report = report + "Print envelope coordinates after projection:\n" +
envelope.XMin + " , " + envelope.YMin + " , " + envelope.XMax + " , " +
envelope.YMax;
System.Windows.Forms.MessageBox.Show(report);
}
/// <summary>
/// Creates a WGS84 Spatial Reference
/// </summary>
/// <returns>ISpatialReference WGS84</returns>
public static ISpatialReference WGS84SpatialReference()
{
SpatialReferenceEnvironment spatialReferenceEnv = new SpatialReferenceEnvironmentClass();
IGeographicCoordinateSystem geoCS = spatialReferenceEnv.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
ISpatialReference spatialReference = geoCS;
spatialReference.SetFalseOriginAndUnits(-180, -90, 1000000);
return(spatialReference);
}
public IPoint ConvertToDecimalDegrees(IPoint point, CoordinateSystemModel coordinateSystemModel)
{
var spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
//Create Spatial Reference
ISpatialReference spatialReference = spatialReferenceFactory.CreateGeographicCoordinateSystem(coordinateSystemModel.ESRIWellKnownID);
spatialReference.SetFalseOriginAndUnits(coordinateSystemModel.FalseOriginX, coordinateSystemModel.FalseOriginY, coordinateSystemModel.Units);
point.Project(spatialReference);
return(point);
}
public IPoint ConvertFromUtm(string utmInputValue, CoordinateSystemModel coordinateSystemModel)
{
var resultPoint = new Point();
//Create Spatial Reference Factory
var spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
//Create Spatial Reference
ISpatialReference spatialReference = spatialReferenceFactory.CreateGeographicCoordinateSystem(coordinateSystemModel.ESRIWellKnownID);
spatialReference.SetFalseOriginAndUnits(coordinateSystemModel.FalseOriginX, coordinateSystemModel.FalseOriginY, coordinateSystemModel.Units);
resultPoint.SpatialReference = spatialReference;
(resultPoint as IConversionNotation).PutCoordsFromUTM(esriUTMConversionOptionsEnum.esriUTMAddSpaces, utmInputValue);
return(resultPoint);
}
public IPoint ConvertFromMgrs(string mgrsInputValue, CoordinateSystemModel coordinateSystemModel)
{
var resultPoint = new Point();
//Create Spatial Reference Factory
var spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
//Create Spatial Reference
ISpatialReference spatialReference = spatialReferenceFactory.CreateGeographicCoordinateSystem(coordinateSystemModel.ESRIWellKnownID);
spatialReference.SetFalseOriginAndUnits(coordinateSystemModel.FalseOriginX, coordinateSystemModel.FalseOriginY, coordinateSystemModel.Units);
resultPoint.SpatialReference = spatialReference;
(resultPoint as IConversionMGRS).PutCoordsFromMGRS(mgrsInputValue, esriMGRSModeEnum.esriMGRSMode_Automatic);
return(resultPoint);
}
/// <summary>
/// Creates a WGS84 Spatial Reference
/// </summary>
/// <returns>ISpatialReference WGS84</returns>
private ISpatialReference WGS84SpatialReference()
{
Trace.WriteLine("OpenGoogleStreetView_WGS84SpatialReference");
SpatialReferenceEnvironment spatialReferenceEnv = new SpatialReferenceEnvironmentClass();
IGeographicCoordinateSystem geoCS = spatialReferenceEnv.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
ISpatialReference spatialReference = geoCS;
spatialReference.SetFalseOriginAndUnits(-180, -90, 1000000);
return(spatialReference);
}
/// <summary>
/// Creates a WGS1984 Spatial Reference.
/// </summary>
/// <returns></returns>
public static ISpatialReference CreateGeographicSR()
{
ISpatialReference pSR = null;
ISpatialReferenceFactory pSpatialRefFactory = new SpatialReferenceEnvironment();
IGeographicCoordinateSystem pGeogCoorSystem = pSpatialRefFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
try
{
pSR = pGeogCoorSystem;
pSR.SetFalseOriginAndUnits(-180, -90, 1000000);
}
catch (Exception oErr)
{
MessageBox.Show(oErr.ToString(), "Data Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
//clean up
pGeogCoorSystem = null;
pSpatialRefFactory = null;
return(pSR);
}
/// <summary>
/// Creates a WGS1984 Spatial Reference.
/// </summary>
/// <returns></returns>
private ISpatialReference CreateGeographicSR()
{
ISpatialReference pSR = null;
ISpatialReferenceFactory pSpatialRefFactory = new SpatialReferenceEnvironment();
IGeographicCoordinateSystem pGeogCoorSystem = pSpatialRefFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
try
{
pSR = pGeogCoorSystem;
pSR.SetFalseOriginAndUnits(-180, -90, 1000000);
}
catch (Exception ex)
{
clsStatic.ShowErrorMessage(ex.ToString());
}
//clean up
pGeogCoorSystem = null;
pSpatialRefFactory = null;
return(pSR);
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
try
{
IMxDocument doc = (IMxDocument)m_application.Document;
if (doc.FocusMap.SpatialReference != null || doc.FocusMap.SpatialReference is IUnknownCoordinateSystem)
{
ISpatialReference srWGS84 = Umbriel.ArcMap.Editor.Util.Geohasher.WGS84SpatialReference();
ISpatialReference srMap = doc.FocusMap.SpatialReference;
IEnvelope env = doc.ActiveView.Extent;
IPoint pt;
double metersPerUnit = 1;
if (srMap is IProjectedCoordinateSystem)
{
IProjectedCoordinateSystem pcs = (IProjectedCoordinateSystem)srMap;
metersPerUnit = pcs.CoordinateUnit.MetersPerUnit;
}
srWGS84.SetFalseOriginAndUnits(-180, -90, 1000000);
env.Project(srWGS84);
IArea extentArea = (IArea)env;
pt = extentArea.Centroid;
QueryStringBuilder querystring = new QueryStringBuilder();
querystring.MapCenterLatitude = pt.Y;
querystring.MapCenterLongitude = pt.X;
QueryStringBuilder.StreetViewParameter streetviewParameter = new QueryStringBuilder.StreetViewParameter(pt.Y, pt.X);
querystring.StreetView = streetviewParameter;
string url = querystring.ToString();
Trace.WriteLine("url=" + url);
Process.Start(url);
}
else
{
System.Windows.Forms.MessageBox.Show(
"A data frame spatial reference must be specified in order to use this tool.",
"Umbriel Google Street View",
System.Windows.Forms.MessageBoxButtons.OK);
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.StackTrace);
System.Windows.Forms.MessageBox.Show(
"GoogleStreetView Command Error: " + ex.Message + "\n\n" + ex.StackTrace,
"Umbriel.GoogleStreetView",
System.Windows.Forms.MessageBoxButtons.OK);
}
}
