private double calcDistanceMeters(ESRI.ArcGIS.ADF.Web.Geometry.Point toPoint, ESRI.ArcGIS.ADF.Web.Geometry.Point fromPoint)
{
ILine2 line;
double distance = 0;
ESRI.ArcGIS.Geometry.Point p1, p2;
p1 = new PointClass();
p2 = new PointClass();
p1.PutCoords(toPoint.X, toPoint.Y);
p2.PutCoords(fromPoint.X, fromPoint.Y);
ISpatialReferenceFactory3 spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
ISpatialReference spatialReference = spatialReferenceFactory.CreateSpatialReference((int)
esriSRProjCSType.esriSRProjCS_World_Mercator);
ISpatialReference spatialReferenceOrig = spatialReferenceFactory.CreateSpatialReference((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
line = new LineClass();
line.SpatialReference = spatialReferenceOrig;
line.PutCoords(p1, p2);
line.Project(spatialReference);
distance = line.Length;
return distance;
}
private ILine ConstructLine(double x1, double y1, double x2, double y2)
{
IPoint p1 = new PointClass();
p1.PutCoords(x1, y1);
p1.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
IPoint p2 = new PointClass();
p2.PutCoords(x2, y2);
p2.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
ILine theReturn = new LineClass();
theReturn.PutCoords(p1, p2);
theReturn.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
return theReturn;
}