/// <summary>
/// Writes the line as geojson.
/// </summary>
private static void WriteGeoJson(this List <Coordinate> line, Itinero.IO.Json.JsonWriter jsonWriter)
{
if (line == null)
{
throw new ArgumentNullException("line");
}
if (jsonWriter == null)
{
throw new ArgumentNullException("jsonWriter");
}
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "LineString", true, false);
jsonWriter.WritePropertyName("coordinates", false);
jsonWriter.WriteArrayOpen();
for (var i = 0; i < line.Count; i++)
{
jsonWriter.WriteArrayOpen();
jsonWriter.WriteArrayValue(line[i].Longitude.ToInvariantString());
jsonWriter.WriteArrayValue(line[i].Latitude.ToInvariantString());
jsonWriter.WriteArrayClose();
}
jsonWriter.WriteArrayClose(); // closes the coordinates top level.
jsonWriter.WriteClose(); // closes the geometry.
}
/// <summary>
/// Writes the polygon as geojson.
/// </summary>
private static void WriteGeoJson(this Polygon polygon, Itinero.IO.Json.JsonWriter jsonWriter)
{
if (polygon == null)
{
throw new ArgumentNullException("polygon");
}
if (jsonWriter == null)
{
throw new ArgumentNullException("jsonWriter");
}
if (polygon.ExteriorRing == null)
{
throw new ArgumentNullException("polygon.ExteriorRing");
}
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "Polygon", true, false);
jsonWriter.WritePropertyName("coordinates", false);
jsonWriter.WriteArrayOpen();
jsonWriter.WriteArrayOpen();
for (var i = 0; i < polygon.ExteriorRing.Count; i++)
{
jsonWriter.WriteArrayOpen();
jsonWriter.WriteArrayValue(polygon.ExteriorRing[i].Longitude.ToInvariantString());
jsonWriter.WriteArrayValue(polygon.ExteriorRing[i].Latitude.ToInvariantString());
jsonWriter.WriteArrayClose();
}
jsonWriter.WriteArrayClose();
if (polygon.InteriorRings != null)
{
foreach (var interior in polygon.InteriorRings)
{
jsonWriter.WriteArrayOpen();
for (var i = 0; i < interior.Count; i++)
{
jsonWriter.WriteArrayOpen();
jsonWriter.WriteArrayValue(interior[i].Longitude.ToInvariantString());
jsonWriter.WriteArrayValue(interior[i].Latitude.ToInvariantString());
jsonWriter.WriteArrayClose();
}
jsonWriter.WriteArrayClose();
}
}
jsonWriter.WriteArrayClose(); // closes the coordinates top level.
jsonWriter.WriteClose(); // closes the geometry.
}
/// <summary>
/// Writes the lines as geojson.
/// </summary>
private static void WriteGeoJson(this IEnumerable <Tuple <float, float, List <Coordinate> > > lines, TextWriter writer)
{
if (lines == null)
{
throw new ArgumentNullException("lines");
}
if (writer == null)
{
throw new ArgumentNullException("writer");
}
var jsonWriter = new Itinero.IO.Json.JsonWriter(writer);
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "FeatureCollection", true, false);
jsonWriter.WritePropertyName("features", false);
jsonWriter.WriteArrayOpen();
foreach (var line in lines)
{
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "Feature", true, false);
jsonWriter.WriteProperty("name", "Shape", true, false);
jsonWriter.WritePropertyName("properties");
jsonWriter.WriteOpen();
jsonWriter.WritePropertyName("start_weight");
jsonWriter.WritePropertyValue(line.Item1.ToInvariantString());
jsonWriter.WritePropertyName("end_weight");
jsonWriter.WritePropertyValue(line.Item2.ToInvariantString());
jsonWriter.WriteClose();
jsonWriter.WritePropertyName("geometry", false);
line.Item3.WriteGeoJson(jsonWriter);
jsonWriter.WriteClose(); // closes the feature.
}
jsonWriter.WriteArrayClose(); // closes the feature array.
jsonWriter.WriteClose(); // closes the feature collection.
}
/// <summary>
/// Writes the polygon as geojson.
/// </summary>
public static void WriteGeoJson(this Polygon polygon, TextWriter writer)
{
if (polygon == null)
{
throw new ArgumentNullException("polygon");
}
if (writer == null)
{
throw new ArgumentNullException("writer");
}
if (polygon.ExteriorRing == null)
{
throw new ArgumentNullException("polygon.ExteriorRing");
}
var jsonWriter = new Itinero.IO.Json.JsonWriter(writer);
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "FeatureCollection", true, false);
jsonWriter.WritePropertyName("features", false);
jsonWriter.WriteArrayOpen();
jsonWriter.WriteOpen();
jsonWriter.WriteProperty("type", "Feature", true, false);
jsonWriter.WriteProperty("name", "Shape", true, false);
jsonWriter.WritePropertyName("properties");
jsonWriter.WriteOpen();
jsonWriter.WriteClose();
jsonWriter.WritePropertyName("geometry", false);
polygon.WriteGeoJson(jsonWriter);
jsonWriter.WriteClose(); // closes the feature.
jsonWriter.WriteArrayClose(); // closes the feature array.
jsonWriter.WriteClose(); // closes the feature collection.
}