/// <summary>
/// Initializes static members of the <see cref="GisTools"/> class.
/// </summary>
static GisTools()
{
CoordinateConversionManager = new CoordinateConversionManager();
GridCellManager = new GridCellManager();
GeoJsonUtils = new GeoJsonUtils();
GeometryTools = new GeometryTools();
}
public CoordinateConversionManager GetCoordinateConversionManager(Boolean refresh)
{
if (_coordinateConversionManager.IsNull() || refresh)
{
_coordinateConversionManager = new CoordinateConversionManager();
}
return(_coordinateConversionManager);
}
public void GetConvertedPoint_FromWgs84ToSweref99_ReturnConvertedPoint()
{
CoordinateConversionManager conversionManager = new CoordinateConversionManager();
IPoint point = new Point(10, 15);
ICoordinateSystem fromCoordinateSystem = new CoordinateSystem(CoordinateSystemId.WGS84);
ICoordinateSystem toCoordinateSystem = new CoordinateSystem(CoordinateSystemId.SWEREF99_TM);
IPoint convertedPoint = conversionManager.GetConvertedPoint(point, fromCoordinateSystem, toCoordinateSystem);
Assert.AreEqual(-38133.05646984861, convertedPoint.X, 0.001);
Assert.AreEqual(1664414.4300254737, convertedPoint.Y, 0.001);
}
public void GetConvertedPoint_FromWgs84ToGoogleMercator_ReturnConvertedPoint()
{
CoordinateConversionManager conversionManager = new CoordinateConversionManager();
IPoint point = new Point(10, 15);
ICoordinateSystem fromCoordinateSystem = new CoordinateSystem(CoordinateSystemId.WGS84);
ICoordinateSystem toCoordinateSystem = new CoordinateSystem(CoordinateSystemId.GoogleMercator);
IPoint convertedPoint = conversionManager.GetConvertedPoint(point, fromCoordinateSystem, toCoordinateSystem);
Assert.AreEqual(1113194.9079327357, convertedPoint.X, 0.001);
Assert.AreEqual(1689200.1396078924, convertedPoint.Y, 0.001);
}
/// <summary>
/// Get a feture collection from file
/// </summary>
/// <param name="userContext"></param>
/// <param name="fileName">File to get</param>
/// <param name="coordinateSystemId">State returned coordinate system. None return data as is.</param>
/// <returns></returns>
public static FeatureCollection GetMapDataFeatureCollection(IUserContext userContext, string fileName, CoordinateSystemId coordinateSystemId)
{
var directory = GetMapDataDirectory(userContext);
try
{
var decompressedStream =
new GZipStream(
new FileStream(GetMapDataFilePath(directory, fileName, true), FileMode.Open),
CompressionMode.Decompress);
using (var streamReader = new StreamReader(decompressedStream))
{
//Read json from file
var featureCollection = JsonConvert.DeserializeObject(
streamReader.ReadToEnd(), typeof(FeatureCollection)) as FeatureCollection;
streamReader.Close();
if (featureCollection == null)
{
return(null);
}
var currentCoordinateSystem = GisTools.GeoJsonUtils.FindCoordinateSystem(featureCollection);
//Check if requested crs equals file crs
if (coordinateSystemId == CoordinateSystemId.None || currentCoordinateSystem.Id == coordinateSystemId)
{
return(featureCollection);
}
//Convert coordinates before returning
var cm = new CoordinateConversionManager();
return(cm.Convert(featureCollection, currentCoordinateSystem, new CoordinateSystem(coordinateSystemId)));
}
}
catch
{
return(null);
}
}
public CoordinateConversionManagerTest()
{
_coordinateConversionManager = null;
}
