private bool TryParseMultiPoint(JsonObject obj, out object result)
{
var coordinates = obj["coordinates"] as JsonArray;
Coordinate[] co;
if (coordinates != null && TryParseCoordinateArray(coordinates, out co))
{
result = new MultiPoint(co.Select(x => new Point(x)));
return true;
}
result = null;
return false;
}
private void AppendMultiPoint(StringBuilder builder, MultiPoint multiPoint)
{
builder.Append("MULTIPOINT");
if (multiPoint.IsEmpty)
{
builder.Append(" EMPTY");
return;
}
AppendDimensions(builder, multiPoint);
builder.Append(" (");
for (var i = 0; i < multiPoint.Geometries.Count; i++)
{
if (i > 0)
builder.Append(", ");
AppendPointInner(builder, (Point)multiPoint.Geometries[i]);
}
builder.Append(")");
}
private Dictionary<string, object> WriteMultiPoint(MultiPoint multiPoint)
{
return new Dictionary<string, object>
{
{ "type", "MultiPoint" },
{ "coordinates", multiPoint.Geometries.Cast<Point>().Select(WriteCoordinate).ToArray() }
};
}
private void WriteMultiPoint(MultiPoint multipoint, WkbBinaryWriter writer)
{
WriteEncoding(writer, _settings.Encoding);
WriteGeometryType(multipoint, WkbGeometryType.MultiPoint, writer);
var points = multipoint.Geometries.Cast<Point>().Where(x => !x.IsEmpty).ToList();
writer.Write((uint)points.Count);
foreach (var point in points)
Write(point, writer);
}
public void MultiPoint()
{
var reader = new GeoJsonReader();
var geo = new MultiPoint(new Point(0, 0));
Assert.AreEqual(@"{""type"":""MultiPoint"",""coordinates"":[[0,0]]}",
geo.ToGeoJson());
Assert.AreEqual(geo, reader.Read(geo.ToGeoJson()));
}