private static void ReadWaypoint(XmlReader reader, GpxReaderSettings settings, GpxVisitorBase visitor)
{
var element = (XElement)XNode.ReadFrom(reader);
var waypoint = GpxWaypoint.Load(element, settings, settings.ExtensionReader.ConvertWaypointExtensionElement);
visitor.VisitWaypoint(waypoint);
}
public void RoundTripForValuesVeryNearZeroShouldSucceed()
{
var expectedWaypoint = new GpxWaypoint(new GpxLongitude(0.00001), new GpxLatitude(double.Epsilon), -double.Epsilon);
var file = new GpxFile
{
Waypoints = { expectedWaypoint },
};
file = GpxFile.Parse(file.BuildString(null), null);
var actualWaypoint = Assert.Single(file.Waypoints);
Assert.Equal(expectedWaypoint, actualWaypoint);
}
/// <summary>
/// Creates an <see cref="IPoint"/> <see cref="Feature"/> that contains the same data stored
/// in a given <see cref="GpxWaypoint"/>.
/// </summary>
/// <param name="waypoint">
/// The <see cref="GpxWaypoint"/> source.
/// </param>
/// <param name="geometryFactory">
/// The <see cref="IGeometryFactory"/> to use to create the <see cref="IPoint"/>, or
/// <see langword="null"/> to create a new one to use on-the-fly using the current
/// <see cref="GeometryServiceProvider"/>.
/// </param>
/// <returns>
/// A <see cref="Feature"/> that contains the same data as <paramref name="waypoint"/>.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Thrown when <paramref name="waypoint"/> is <see langword="null"/>
/// </exception>
/// <remarks>
/// The values of <see cref="Feature.Attributes"/> will be populated with the values of the
/// <see cref="GpxWaypoint"/> properties, even when <see langword="null"/>, with exceptions:
/// <list type="bullet">
/// <item><description><see cref="GpxWaypoint.Longitude"/> goes to <see cref="IPoint.X"/> instead,</description></item>
/// <item><description><see cref="GpxWaypoint.Latitude"/> goes to <see cref="IPoint.Y"/> instead, and</description></item>
/// <item><description><see cref="GpxWaypoint.ElevationInMeters"/> goes to <see cref="IPoint.Z"/> instead (when it's set)</description></item>
/// </list>
/// </remarks>
public static Feature ToFeature(GpxWaypoint waypoint, IGeometryFactory geometryFactory)
{
if (waypoint is null)
{
throw new ArgumentNullException(nameof(waypoint));
}
if (geometryFactory is null)
{
geometryFactory = GeometryServiceProvider.Instance.CreateGeometryFactory();
}
// a waypoint all on its own is an IPoint feature.
var coord = new Coordinate(waypoint.Longitude, waypoint.Latitude, waypoint.ElevationInMeters ?? Coordinate.NullOrdinate);
var point = geometryFactory.CreatePoint(coord);
var attributes = new AttributesTable
{
{ nameof(waypoint.TimestampUtc), waypoint.TimestampUtc },
{ nameof(waypoint.Name), waypoint.Name },
{ nameof(waypoint.Description), waypoint.Description },
{ nameof(waypoint.SymbolText), waypoint.SymbolText },
{ nameof(waypoint.MagneticVariation), waypoint.MagneticVariation },
{ nameof(waypoint.GeoidHeight), waypoint.GeoidHeight },
{ nameof(waypoint.Comment), waypoint.Comment },
{ nameof(waypoint.Source), waypoint.Source },
{ nameof(waypoint.Links), waypoint.Links },
{ nameof(waypoint.Classification), waypoint.Classification },
{ nameof(waypoint.FixKind), waypoint.FixKind },
{ nameof(waypoint.NumberOfSatellites), waypoint.NumberOfSatellites },
{ nameof(waypoint.HorizontalDilutionOfPrecision), waypoint.HorizontalDilutionOfPrecision },
{ nameof(waypoint.VerticalDilutionOfPrecision), waypoint.VerticalDilutionOfPrecision },
{ nameof(waypoint.PositionDilutionOfPrecision), waypoint.PositionDilutionOfPrecision },
{ nameof(waypoint.SecondsSinceLastDgpsUpdate), waypoint.SecondsSinceLastDgpsUpdate },
{ nameof(waypoint.DgpsStationId), waypoint.DgpsStationId },
{ nameof(waypoint.Extensions), waypoint.Extensions },
};
return(new Feature(point, attributes));
}