/// <summary>
/// Returns the county closes to the given municipality
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public HttpResponseMessage GetCounty(int id)
{
var session = SessionManager.Session;
var county =
(from c in session.Query <County>()
from m in session.Query <Municipality>()
where m.Id == id
orderby m.Geom.Centroid.Distance(c.Geom) ascending
select c)
.Take(1)
.ToList()
.FirstOrDefault();
var feature = new Feature
{
Geometry = county.Geom,
Attributes = new AttributesTable()
};
feature.Attributes.AddAttribute("id", county.Id);
feature.Attributes.AddAttribute("name", county.Name);
feature.Attributes.AddAttribute("no", county.CountyNo);
feature.Attributes.AddAttribute("type", "county");
var jsonSerializer = new GeoJsonSerializer();
var sw = new StringWriter();
jsonSerializer.Serialize(sw, feature);
return(Response(sw.ToString()));
}
public void TestIssue83()
{
var geoJson = @"{ ""type"": ""Feature"",
""geometry"": { ""type"": ""Point"", ""coordinates"": [10.0, 60.0] },
""id"": 1,
""properties"": { ""Name"": ""test"" } }";
var s = new GeoJsonSerializer();
Feature f = null;
Assert.DoesNotThrow(() =>
f = s.Deserialize <Feature>(new JsonTextReader(new StringReader(geoJson)))
);
Assert.IsNotNull(f, "f != null");
Assert.IsTrue(FeatureExtensions.HasID(f), "f.HasID()");
Assert.AreEqual(1, FeatureExtensions.ID(f), "f.ID != 1");
var sb = new StringBuilder();
var tw = new JsonTextWriter(new StringWriter(sb));
s.Serialize(tw, f);
var geoJsonRes = sb.ToString();
CompareJson(geoJson, geoJsonRes);
}
public void TestIssue83()
{
var geoJson = "{ \"type\": \"Feature\", " +
"\"geometry\": { \"type\": \"Point\", \"coordinates\": [10.0, 60.0] }, " +
"\"id\": 1, " +
"\"properties\": { \"Name\": \"test\" } }";
var s = new GeoJsonSerializer();
Feature f = null;
Assert.DoesNotThrow(() =>
f = s.Deserialize <Feature>(new JsonTextReader(new StringReader(geoJson)))
);
Assert.IsNotNull(f, "f != null");
Assert.IsTrue(f.HasID(), "f.HasID()");
Assert.AreEqual(1, f.ID(), "f.ID != 1");
var sb = new StringBuilder();
var tw = new JsonTextWriter(new StringWriter(sb));
s.Serialize(tw, f);
var geoJsonRes = sb.ToString();
CompareJson(geoJson, geoJsonRes);
}
/// <summary>
/// Returns a list of municipalities in GeoJSON format
/// </summary>
/// <returns></returns>
public HttpResponseMessage Get()
{
var session = SessionManager.Session;
var municipalities = session.Query <Municipality>().ToList();
FeatureCollection collection = new FeatureCollection();
foreach (var municipality in municipalities)
{
var feature = new Feature
{
Geometry = municipality.Geom,
Attributes = new AttributesTable(),
};
feature.Attributes.AddAttribute("id", municipality.Id);
feature.Attributes.AddAttribute("name", municipality.Name);
feature.Attributes.AddAttribute("no", municipality.MunicipalityNo);
feature.Attributes.AddAttribute("type", "municipality");
collection.Add(feature);
}
var jsonSerializer = new GeoJsonSerializer();
var sw = new StringWriter();
jsonSerializer.Serialize(sw, collection);
return(Response(sw.ToString()));
}
public void GeoJsonWriterWriteAnyObjectTest()
{
AttributesTable attributes = new AttributesTable();
DateTime Date = new DateTime(2012, 8, 8).Date;
JsonSerializer g = new GeoJsonSerializer {
NullValueHandling = NullValueHandling.Ignore
};
StringBuilder sb = new StringBuilder();
using (StringWriter sw = new StringWriter(sb))
g.Serialize(sw, Date);
string expectedDateString = sb.ToString();
string expectedResult = "{\"featureCollection\":{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}],\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"name1\"}}},\"Date\":" + expectedDateString + "}";
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
FeatureCollection featureCollection = new FeatureCollection(new Collection <IFeature> {
feature
})
{
CRS = new NamedCRS("name1")
};
var gjw = new GeoJsonWriter();
gjw.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
string actual = gjw.Write(new { featureCollection, Date = Date });
Assert.AreEqual(expectedResult, actual);
}
public static string ToGeoJson(this IGeometry geometry, int srId, KeyValuePair <string, object>[] attributes = null)
{
var attributesTable = new AttributesTable();
if (attributes != null)
{
foreach (var attribute in attributes)
{
attributesTable.AddAttribute(attribute.Key, attribute.Value);
}
}
var feature = new Feature(geometry, attributesTable);
var featureCollection = new FeatureCollection()
{
CRS = new NamedCRS(string.Format("EPSG:{0}", srId)),
Features = { feature }
};
var geoJsonSerializer = new GeoJsonSerializer(geometry.Factory);
var stringBuilder = new StringBuilder();
using (var sw = new StringWriter(stringBuilder))
geoJsonSerializer.Serialize(sw, featureCollection);
return(stringBuilder.ToString());
}
public void GeoJsonSerializerGeometryTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
GeoJsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, new Point(23, 56));
writer.Flush();
Assert.AreEqual("{\"type\":\"Point\",\"coordinates\":[23.0,56.0]}", sb.ToString());
}
public static string GetPolygonAsGeoJSON()
{
var poly = GetAPolygon();
var jsonSerializer = new GeoJsonSerializer();
var sw = new System.IO.StringWriter();
jsonSerializer.Serialize(sw, poly);
return(sw.ToString());
}
private static IFeature SandD(IFeature input)
{
var s = new GeoJsonSerializer {
NullValueHandling = NullValueHandling.Ignore, FloatFormatHandling = FloatFormatHandling.DefaultValue, FloatParseHandling = FloatParseHandling.Double
};
var sb = new StringBuilder();
s.Serialize(new JsonTextWriter(new StringWriter(sb)), input, typeof(IFeature));
return((IFeature)s.Deserialize <IFeature>(new JsonTextReader(new StringReader(sb.ToString()))));
}
public void TestCoordinateSerialize()
{
Coordinate coordinate = new Coordinate(1, 1);
GeoJsonSerializer g = new GeoJsonSerializer();
StringBuilder sb = new StringBuilder();
g.Serialize(new JsonTextWriter(new StringWriter(sb)), coordinate);
Console.WriteLine(sb.ToString());
}
public void serialize_an_array_of_geometries_should_return_a_json_fragment()
{
StringBuilder sb = new StringBuilder();
JsonTextWriter writer = new JsonTextWriter(new StringWriter(sb));
JsonSerializer serializer = new GeoJsonSerializer(factory);
serializer.Serialize(writer, geometries);
string actual = sb.ToString();
Console.WriteLine(actual);
Assert.That(actual, Is.EqualTo(serializedGeometries));
}
public void GeoJsonSerializerGeometryTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
JsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, new Point(23, 56));
writer.Flush();
Assert.AreEqual("{\"type\":\"Point\",\"coordinates\":[23.0,56.0]}", sb.ToString());
}
public void PerformGeometryTest(IGeometry geom)
{
GeoJsonSerializer s = new GeoJsonSerializer();
StringBuilder sb = new StringBuilder();
s.Serialize(new JsonTextWriter(new StringWriter(sb)), geom);
string result = sb.ToString();
Console.WriteLine(result);
Deserialize(result, geom);
}
public void serialize_a_geometrycollection_should_return_a_valid_json()
{
StringBuilder sb = new StringBuilder();
JsonTextWriter writer = new JsonTextWriter(new StringWriter(sb));
JsonSerializer serializer = new GeoJsonSerializer(factory);
serializer.Serialize(writer, collection);
string actual = sb.ToString();
Console.WriteLine(actual);
Assert.That(actual, Is.EqualTo(serializedCollection));
}
/// <summary>
/// Serializes the object to the stream as GeoJson.
/// </summary>
/// <param name="type"></param>
/// <param name="value"></param>
/// <param name="writeStream"></param>
/// <param name="content"></param>
public override void WriteToStream(Type type, object value, Stream writeStream, HttpContent content)
{
using (var writer = new StreamWriter(writeStream)
{
AutoFlush = true
})
{
var serializer = new GeoJsonSerializer();
serializer.Serialize(writer, value);
}
}
public void GeoJsonSerializerAttributesTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
GeoJsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, attributes);
writer.Flush();
Assert.AreEqual("\"properties\":{\"test1\":\"value1\"}", sb.ToString());
}
public void GeoJsonSerializerFeatureTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
GeoJsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, feature);
writer.Flush();
Assert.AreEqual("{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}", sb.ToString());
}
public void PerformGeometryTest(IGeometry geom)
{
GeoJsonSerializer s = new GeoJsonSerializer();
StringBuilder sb = new StringBuilder();
s.Serialize(new JsonTextWriter(new StringWriter(sb)), geom);
string result = sb.ToString();
Console.WriteLine(result);
Deserialize(result, geom);
}
public void serialize_a_geometrycollection_should_return_a_valid_json()
{
StringBuilder sb = new StringBuilder();
JsonTextWriter writer = new JsonTextWriter(new StringWriter(sb));
JsonSerializer serializer = new GeoJsonSerializer(factory);
serializer.Serialize(writer, collection);
string actual = sb.ToString();
Console.WriteLine(actual);
Assert.That(actual, Is.EqualTo(serializedCollection));
}
public void serialize_an_array_of_geometries_should_return_a_json_fragment()
{
StringBuilder sb = new StringBuilder();
JsonTextWriter writer = new JsonTextWriter(new StringWriter(sb));
JsonSerializer serializer = new GeoJsonSerializer(factory);
serializer.Serialize(writer, geometries);
string actual = sb.ToString();
Console.WriteLine(actual);
Assert.That(actual, Is.EqualTo(serializedGeometries));
}
public void GeoJsonSerializerAttributesTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
JsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, attributes);
writer.Flush();
Assert.AreEqual("\"properties\":{\"test1\":\"value1\"}", sb.ToString());
}
public void TestCoordinatesSerialize()
{
Coordinate[] coordinates = new Coordinate[4];
for (int i = 0; i < coordinates.Length; i++)
{
coordinates[i] = new Coordinate(i, i, i);
}
StringBuilder sb = new StringBuilder();
GeoJsonSerializer g = new GeoJsonSerializer();
g.Serialize(new JsonTextWriter(new StringWriter(sb)), coordinates);
Console.WriteLine(sb.ToString());
}
public void GeoJsonSerializerFeatureTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
JsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, feature);
writer.Flush();
Assert.AreEqual("{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}", sb.ToString());
}
public void GeoJsonSerializerFeatureCollectionTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
FeatureCollection featureCollection = new FeatureCollection(new Collection<IFeature> {feature})
{CRS = new NamedCRS("name1")};
GeoJsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, featureCollection);
writer.Flush();
Assert.AreEqual("{\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}],\"type\":\"FeatureCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"name1\"}}}", sb.ToString());
}
public void GeoJsonWriterWriteAnyObjectTest()
{
AttributesTable attributes = new AttributesTable();
DateTime Date = new DateTime(2012, 8, 8).Date;
GeoJsonSerializer g = new GeoJsonSerializer();
StringBuilder sb = new StringBuilder();
using (StringWriter sw = new StringWriter(sb))
g.Serialize(sw, Date);
string expectedDateString = sb.ToString();
string expectedResult = "{\"featureCollection\":{\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}],\"type\":\"FeatureCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"name1\"}}},\"Date\":" + expectedDateString + "}";
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
FeatureCollection featureCollection = new FeatureCollection(new Collection<IFeature> { feature }) { CRS = new NamedCRS("name1") };
string actual = new GeoJsonWriter().Write(new { featureCollection, Date = Date });
Assert.AreEqual(expectedResult, actual);
}
public void GeoJsonSerializerFeatureCollectionTest()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
AttributesTable attributes = new AttributesTable();
attributes.AddAttribute("test1", "value1");
IFeature feature = new Feature(new Point(23, 56), attributes);
FeatureCollection featureCollection = new FeatureCollection(new Collection <IFeature> {
feature
})
{
CRS = new NamedCRS("name1")
};
JsonSerializer serializer = new GeoJsonSerializer();
serializer.Serialize(writer, featureCollection);
writer.Flush();
Assert.AreEqual("{\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[23.0,56.0]},\"properties\":{\"test1\":\"value1\"}}],\"type\":\"FeatureCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"name1\"}}}", sb.ToString());
}
// GET api/<controller>/5
public HttpResponseMessage Get(int id)
{
var session = SessionManager.Session;
var county = session.Get <County>(id);
var feature = new Feature
{
Geometry = county.Geom,
Attributes = new AttributesTable()
};
feature.Attributes.AddAttribute("Id", county.Id);
feature.Attributes.AddAttribute("Name", county.Name);
feature.Attributes.AddAttribute("No", county.CountyNo);
var jsonSerializer = new GeoJsonSerializer();
var sw = new StringWriter();
jsonSerializer.Serialize(sw, feature);
return(Response(sw.ToString()));
}
public static string ToGeoJson(this SqlGeometry geometry, KeyValuePair <string, object>[] attributes = null)
{
var wkt = new string(geometry.STAsText().Value);
var wktReader = new WKTReader();
var geom = wktReader.Read(wkt);
var attributesTable = new AttributesTable();
if (attributes != null)
{
foreach (var attribute in attributes)
{
attributesTable.AddAttribute(attribute.Key, attribute.Value);
}
}
var feature = new Feature(geom, attributesTable);
var featureCollection = new FeatureCollection()
{
CRS = new NamedCRS(string.Format("EPSG:{0}", geometry.STSrid)),
Features = { feature }
};
var sb = new StringBuilder();
using (var sw = new StringWriter(sb))
{
var serializer = new GeoJsonSerializer()
{
Formatting = Newtonsoft.Json.Formatting.None
};
serializer.Serialize(sw, featureCollection);
sw.Close();
}
return(sb.ToString());
}
public void TestIssue83()
{
var geoJson = "{ \"type\": \"Feature\", " +
"\"geometry\": { \"type\": \"Point\", \"coordinates\": [10.0, 60.0] }, " +
"\"id\": 1, " +
"\"properties\": { \"Name\": \"test\" } }";
var s = new GeoJsonSerializer();
Feature f = null;
Assert.DoesNotThrow(() =>
f = s.Deserialize<Feature>(new JsonTextReader(new StringReader(geoJson)))
);
Assert.IsNotNull(f, "f != null");
Assert.IsTrue(FeatureExtensions.HasID(f), "f.HasID()");
Assert.AreEqual(1, FeatureExtensions.ID(f), "f.ID != 1");
var sb = new StringBuilder();
var tw = new JsonTextWriter(new StringWriter(sb));
s.Serialize(tw, f);
var geoJsonRes = sb.ToString();
CompareJson(geoJson, geoJsonRes);
}
public void TestCoordinateSerialize()
{
Coordinate coordinate = new Coordinate(1, 1);
GeoJsonSerializer g = new GeoJsonSerializer();
StringBuilder sb = new StringBuilder();
g.Serialize(new JsonTextWriter(new StringWriter(sb)), coordinate);
Console.WriteLine(sb.ToString());
}
/// <summary>
/// Convert shape-file to geojson-file stream
/// </summary>
/// <param name="shapeFilePath"></param>
public static Stream ConvertToGeoJsonStream(string shapeFilePath)
{
var factory = new GeometryFactory();
//Create a feature collection
var featureCollection = new FeatureCollection();
//Try to get crs from .prj file
var crs = TryToGetCrs(shapeFilePath);
//Set crs if we found it
if (crs != CoordinateSystemId.None)
{
featureCollection.CRS = new NamedCRS(new CoordinateSystem(crs).Id.EpsgCode());
}
using (var shapeFileDataReader = new ShapefileDataReader(shapeFilePath, factory))
{
//Get shape file dbase header
var header = shapeFileDataReader.DbaseHeader;
//Loop throw all geometries
while (shapeFileDataReader.Read())
{
var attributesTable = new AttributesTable();
var geometry = (Geometry)shapeFileDataReader.Geometry;
//Get header fields
for (var i = 0; i < header.NumFields; i++)
{
var fldDescriptor = header.Fields[i];
attributesTable.AddAttribute(fldDescriptor.Name, shapeFileDataReader.GetValue(i));
}
//Create feature using geometry and attributes
var feature = new Feature()
{
Geometry = geometry,
Attributes = attributesTable
};
//Add feature to collection
featureCollection.Features.Add(feature);
}
//Close and free up any resources
shapeFileDataReader.Close();
}
// Create a stream to write to.
var outputStream = new MemoryStream();
var sw = new StreamWriter(outputStream);
var jsonSerializer = new GeoJsonSerializer(factory);
//Serialize feature collection to json
jsonSerializer.Serialize(sw, featureCollection);
//Flush stream writer and reset stream position
sw.Flush();
outputStream.Position = 0;
return(outputStream);
}
public void TestCoordinatesSerialize()
{
Coordinate[] coordinates = new Coordinate[4];
for (int i = 0; i < coordinates.Length; i++)
{
coordinates[i] = new Coordinate(i, i, i);
}
StringBuilder sb = new StringBuilder();
GeoJsonSerializer g = new GeoJsonSerializer();
g.Serialize(new JsonTextWriter(new StringWriter(sb)), coordinates);
Console.WriteLine(sb.ToString());
}
