public void Test()
{
var features = new List<Features.IFeature>();
var seq = DotSpatialAffineCoordinateSequenceFactory.Instance.Create(1, Ordinates.XY);
seq.SetOrdinate(0, Ordinate.X, -91.0454);
seq.SetOrdinate(0, Ordinate.Y, 32.5907);
var pt = new GeometryFactory(DotSpatialAffineCoordinateSequenceFactory.Instance).CreatePoint(seq);
var attr = new Features.AttributesTable();
attr.AddAttribute("FirstName", "John");
attr.AddAttribute("LastName", "Doe");
features.Add(new Features.Feature(pt, attr));
var fileName = Path.GetTempFileName();
fileName = fileName.Substring(0, fileName.Length - 4);
var shpWriter = new IO.ShapefileDataWriter(fileName, features[0].Geometry.Factory)
{
Header = IO.ShapefileDataWriter.GetHeader(features[0], features.Count)
};
shpWriter.Write(features);
bool isTrue;
using (var reader = new IO.ShapefileDataReader(fileName, pt.Factory))
@isTrue = reader.ShapeHeader.ShapeType.ToString() == "Point";
foreach (var file in Directory.GetFiles(Path.GetTempPath(), Path.GetFileName(fileName) + ".*" ))
{
File.Delete(file);
}
Assert.IsTrue(@isTrue);
}
public void TestAreaPrecisionPerformance()
{
const double originX = 1000000;
const double originY = 5000000;
var sw = new Stopwatch();
var sw1 = new Stopwatch();
var sw2 = new Stopwatch();
var sw3 = new Stopwatch();
//-2,23057128323489E-11
sw.Start();
for (var nrVertices = 4; nrVertices <= 5000000; nrVertices *= 2)
{
var coordinates = new Coordinate[nrVertices + 1];
for (var i = 0; i <= nrVertices; i++)
{
var vertex = new Coordinate(originX + (1d + Math.Sin( i/(double) nrVertices*2*Math.PI)),
originY + (1d + Math.Cos( i/(double) nrVertices*2*Math.PI)));
coordinates[i] = vertex;
}
// close ring
coordinates[nrVertices] = coordinates[0];
var g1 = new GeometryFactory().CreateLinearRing(coordinates);
var holes = new ILinearRing[] {};
var polygon = (Polygon) new GeometryFactory().CreatePolygon(g1, holes);
//Console.WriteLine(polygon);
sw1.Start();
var area = polygon.Area;
sw1.Stop();
sw2.Start();
var area2 = AccurateSignedArea(coordinates);
sw2.Stop();
sw3.Start();
var areaOld = OriginalSignedArea(coordinates);
sw3.Stop();
var exactArea = 0.5 * nrVertices * Math.Sin(2 * Math.PI / nrVertices);
var eps1 = exactArea - area;
var eps2 = exactArea - area2;
var eps3 = exactArea - areaOld;
//Assert.IsTrue(Math.Abs(eps2) <= Math.Abs(eps3));
Console.WriteLine(string.Format("{0,10},\tnow err: {1,23},\tacc err: {2,23},\told err: {3,23}", nrVertices ,eps1, eps2 ,eps3));
}
sw.Stop();
Console.WriteLine("\n\nTime: " + sw.Elapsed);
Console.WriteLine("Time Now: " + sw1.ElapsedTicks);
Console.WriteLine("Time Acc: " + sw2.ElapsedTicks);
Console.WriteLine("Time Old: " + sw3.ElapsedTicks);
Assert.IsTrue(true);
}
public static Point WgsToGoogle(Point p)
{
GeometryFactory factory = new NetTopologySuite.Geometries.GeometryFactory();
Point result = GeometryTransform.TransformGeometry(p, LayerTools.wgs84toGoogle.MathTransform, factory) as Point;
return(result);
}
private void Form2_Load(object sender, EventArgs e)
{
//TileAsyncLayer osmLayer= new TileAsyncLayer(new OsmTileSource(), "TileLayer - OSM");
TileAsyncLayer bingLayer = new TileAsyncLayer(new BingTileSource(BingRequest.UrlBing, "", BingMapType.Roads), "TileLayer - Bing");
this.mapBox1.Map.BackgroundLayer.Add(bingLayer);
GeometryFactory gf = new GeometryFactory(new PrecisionModel(), 3857);
#if DotSpatialProjections
var mathTransform = LayerTools.Wgs84toGoogleMercator;
var geom = GeometryTransform.TransformBox(
new Envelope(-9.205626, -9.123736, 38.690993, 38.740837),
mathTransform.Source, mathTransform.Target);
#else
IMathTransform mathTransform = LayerTools.Wgs84toGoogleMercator.MathTransform;
Envelope geom = GeometryTransform.TransformBox(
new Envelope(-9.205626, -9.123736, 38.690993, 38.740837),
mathTransform);
#endif
//Adds a pushpin layer
VectorLayer pushPinLayer = new VectorLayer("PushPins");
List<IGeometry> geos = new List<IGeometry>();
geos.Add(gf.CreatePoint(geom.Centre));
var geoProvider = new FeatureProvider(geos);
pushPinLayer.DataSource = geoProvider;
//this.mapBox1.Map.Layers.Add(pushPinLayer);
this.mapBox1.Map.ZoomToBox(geom);
this.mapBox1.Map.Zoom = 8500;
this.mapBox1.Refresh();
}
private void TestWriteZMValuesShapeFile(bool testM)
{
var points = new Coordinate[3];
points[0] = new Coordinate(0, 0);
points[1] = new Coordinate(1, 0);
points[2] = new Coordinate(1, 1);
var csFactory = NetTopologySuite.Geometries.Implementation.DotSpatialAffineCoordinateSequenceFactory.Instance;
var sequence = csFactory.Create(3, Ordinates.XYZM);
for (var i = 0; i < 3; i ++)
{
sequence.SetOrdinate(i, Ordinate.X, points[i].X);
sequence.SetOrdinate(i, Ordinate.Y, points[i].Y);
sequence.SetOrdinate(i, Ordinate.Z, 1 + i);
if (testM)
sequence.SetOrdinate(i, Ordinate.M, 11 + i);
}
var lineString = Factory.CreateLineString(sequence);
var attributes = new AttributesTable();
attributes.AddAttribute("FOO", "Trond");
var feature = new Feature(Factory.CreateMultiLineString(new[] { lineString }), attributes);
var features = new Feature[1];
features[0] = feature;
var shpWriter = new ShapefileDataWriter("ZMtest", Factory)
{
Header = ShapefileDataWriter.GetHeader(features[0], features.Length)
};
shpWriter.Write(features);
// Now let's read the file and verify that we got Z and M back
var factory = new GeometryFactory(NetTopologySuite.Geometries.Implementation.DotSpatialAffineCoordinateSequenceFactory.Instance);
using (var reader = new ShapefileDataReader("ZMtest", factory))
{
reader.Read();
var geom = reader.Geometry;
for (var i = 0; i < 3; i++)
{
var c = geom.Coordinates[i];
Assert.AreEqual(i + 1, c.Z);
}
if (testM)
{
sequence = ((ILineString) geom).CoordinateSequence;
for (var i = 0; i < 3; i++)
{
Assert.AreEqual(sequence.GetOrdinate(i, Ordinate.M), 11 + i);
}
}
// Run a simple attribute test too
var v = reader.GetString(0);
Assert.AreEqual(v, "Trond");
}
}
public static Point GoogleToWgs(Point p)
{
GeometryFactory factory = new NetTopologySuite.Geometries.GeometryFactory();
Point result = GeometryTransform.TransformGeometry(p, LayerTools.GoogleMercatorToWgs84.MathTransform, factory) as Point;
return(result);
}
public static void main(string[] args)
{
ExtendedCoordinateSequenceFactory seqFact = ExtendedCoordinateSequenceFactory.Instance();
ExtendedCoordinate[] array1 = new ExtendedCoordinate[] { new ExtendedCoordinate(0, 0, 0, 91),
new ExtendedCoordinate(10, 0, 0, 92), new ExtendedCoordinate(10, 10, 0, 93),
new ExtendedCoordinate(0, 10, 0, 94), new ExtendedCoordinate(0, 0, 0, 91)};
ICoordinateSequence seq1 = seqFact.Create(array1);
ICoordinateSequence seq2 = seqFact.Create(new ExtendedCoordinate[] { new ExtendedCoordinate(5, 5, 0, 91),
new ExtendedCoordinate(15, 5, 0, 92), new ExtendedCoordinate(15, 15, 0, 93),
new ExtendedCoordinate(5, 15, 0, 94), new ExtendedCoordinate(5, 5, 0, 91)});
GeometryFactory fact = new GeometryFactory(ExtendedCoordinateSequenceFactory.Instance());
IGeometry g1 = fact.CreatePolygon(fact.CreateLinearRing(seq1), null);
IGeometry g2 = fact.CreatePolygon(fact.CreateLinearRing(seq2), null);
Console.WriteLine("WKT for g1: " + g1);
Console.WriteLine("Internal rep for g1: " + ((IPolygon) g1).ExteriorRing.CoordinateSequence);
Console.WriteLine("WKT for g2: " + g2);
Console.WriteLine("Internal rep for g2: " + ((IPolygon)g2).ExteriorRing.CoordinateSequence);
IGeometry gInt = g1.Intersection(g2);
Console.WriteLine("WKT for gInt: " + gInt);
Console.WriteLine("Internal rep for gInt: " + ((IPolygon)gInt).ExteriorRing.CoordinateSequence);
}
public XmlTestFactory(PrecisionModel pm, IGeometryOperation geometryOperation, IResultMatcher resultMatcher)
{
ObjGeometryFactory = new GeometryFactory(pm);
_geometryOperation = geometryOperation;
_resultMatcher = resultMatcher;
_objReader = new WKTOrWKBReader(ObjGeometryFactory);
}
public static ILineString GetALine()
{
var p1 = new Coordinate(0, 0);
var p2 = new Coordinate(10, 10);
var coordinatesp = new[] { p1, p2 };
var line1 = new GeometryFactory().CreateLineString(coordinatesp);
return line1;
}
public static ILineString GetASecondLine()
{
var q1 = new Coordinate(0, 10);
var q2 = new Coordinate(10, 0);
var coordinatesq = new[] { q1, q2 };
var line2 = new GeometryFactory().CreateLineString(coordinatesq);
return line2;
}
public void TestPackedCoordinateSequence() {
var pcsFactory = new GeometryFactory(PackedCoordinateSequenceFactory.DoubleFactory);
var geom0 = Read(pcsFactory, "POLYGON ((210 210, 210 220, 220 220, 220 210, 210 210))");
var geom1 = Read("POLYGON ((225 225, 225 215, 215 215, 215 225, 225 225))");
var cbo = new CommonBitsOp(true);
var result = cbo.Intersection(geom0, geom1);
var expected = geom0.Intersection(geom1);
//Geometry expected = read("POLYGON ((220 215, 215 215, 215 220, 220 220, 220 215))");
CheckEqual(expected, result);
}
public virtual void Intersection(string wktA, string wktB, PrecisionModel pm)
{
Console.WriteLine("Running example using Precision Model = " + pm);
GeometryFactory fact = new GeometryFactory(pm);
WKTReader wktRdr = new WKTReader(fact);
IGeometry A = wktRdr.Read(wktA);
IGeometry B = wktRdr.Read(wktB);
IGeometry C = A.Intersection(B);
Console.WriteLine("A intersection B = " + C);
}
public GeometryPrecisionReducerTest()
{
pmFloat = new PrecisionModel();
pmFixed1 = new PrecisionModel(1);
reducer = new GeometryPrecisionReducer(pmFixed1);
reducerKeepCollapse = new GeometryPrecisionReducer(pmFixed1);
gfFloat = new GeometryFactory(pmFloat, 0);
reader = new WKTReader(gfFloat);
reducerKeepCollapse.RemoveCollapsedComponents = false;
}
public void CoordinateTransformationTransformsQueryHavingDifferentSpatialReferenceAsTransformationTarget()
{
MockRepository repository = new MockRepository();
FeatureProviderBase provider = repository.CreateMock<FeatureProviderBase>();
BufferedCoordinateFactory coordFactory = new BufferedCoordinateFactory();
BufferedCoordinateSequenceFactory coordSeqFactory = new BufferedCoordinateSequenceFactory(coordFactory);
IGeometryFactory<BufferedCoordinate> geoFactory = new GeometryFactory<BufferedCoordinate>(coordSeqFactory);
IMatrixFactory<DoubleComponent> matrixFactory = new LinearFactory<DoubleComponent>();
ICoordinateTransformationFactory transformFactory =
new CoordinateTransformationFactory<BufferedCoordinate>(coordFactory, geoFactory, matrixFactory);
SetupResult.For(provider.CoordinateTransformation).Return(transformFactory);
}
private static GeoAPI.Geometries.ILineString CreateSineLine(GeoAPI.Geometries.Coordinate offset,
double scaleY = 100)
{
var factory = new NetTopologySuite.Geometries.GeometryFactory();
var cs = factory.CoordinateSequenceFactory.Create(181, 2);
for (int i = 0; i <= 180; i++)
{
cs.SetOrdinate(i, GeoAPI.Geometries.Ordinate.X, offset.X + 2 * i);
cs.SetOrdinate(i, GeoAPI.Geometries.Ordinate.Y, offset.Y + scaleY * System.Math.Sin(2d * i * System.Math.PI / 180d));
}
return(factory.CreateLineString(cs));
}
public static void main(string[] args)
{
// create a factory using default values (e.g. floating precision)
GeometryFactory fact = new GeometryFactory();
IPoint p1 = fact.CreatePoint(new Coordinate(0, 0));
Console.WriteLine(p1);
IPoint p2 = fact.CreatePoint(new Coordinate(1, 1));
Console.WriteLine(p1);
IMultiPoint mpt = fact.CreateMultiPoint(new Coordinate[]{ new Coordinate(0, 0), new Coordinate(1, 1), });
Console.WriteLine(mpt);
}
public void check_difference_results_with_fixed_precision()
{
GeometryFactory precisionModel = new GeometryFactory(new PrecisionModel(100));
WKTReader reader = new WKTReader(precisionModel);
IGeometry p1 = reader.Read(@"POLYGON ((504927.9 6228865.64, 504969.88 6228833.89, 504980.82 6228861.76, 504927.9 6228865.64))");
IGeometry p2 = reader.Read(@"POLYGON ((504927.9 6228865.64, 504951.14 6228848.06, 504957.42 6228863.47, 504927.9 6228865.64))");
IGeometry test = p1.Difference(p2);
Assert.That(test, Is.Not.Null);
Assert.That(test.IsEmpty, Is.False);
const string expected = @"POLYGON ((504927.9 6228865.64, 504980.82 6228861.76, 504969.88 6228833.89, 504951.14 6228848.06, 504957.42 6228863.47, 504927.9 6228865.64))";
string actual = test.AsText();
Assert.That(actual, Is.EqualTo(expected));
}
/// <summary>
///
/// </summary>
public virtual void Run()
{
GeometryFactory fact = new GeometryFactory();
WKTReader wktRdr = new WKTReader(fact);
string wktA = "POLYGON((40 100, 40 20, 120 20, 120 100, 40 100))";
string wktB = "LINESTRING(20 80, 80 60, 100 140)";
IGeometry A = wktRdr.Read(wktA);
IGeometry B = wktRdr.Read(wktB);
IGeometry C = A.Intersection(B);
Console.WriteLine("A = " + A);
Console.WriteLine("B = " + B);
Console.WriteLine("A intersection B = " + C);
Console.WriteLine("A relate C = " + A.Relate(B));
}
private void FormMovingObjectOverTileLayer_Load(object sender, EventArgs e)
{
//Lisbon...
#if DotSpatialProjections
var mathTransform = LayerTools.Wgs84toGoogleMercator;
var geom = GeometryTransform.TransformBox(
new Envelope(-9.205626, -9.123736, 38.690993, 38.740837),
mathTransform.Source, mathTransform.Target);
#else
var mathTransform = LayerTools.Wgs84toGoogleMercator.MathTransform;
GeoAPI.Geometries.Envelope geom = GeometryTransform.TransformBox(
new Envelope(-9.205626, -9.123736, 38.690993, 38.740837),
mathTransform);
#endif
//Google Background
TileAsyncLayer layer2 = new TileAsyncLayer(new OsmTileSource(), "TileLayer - OSM");
this.mapBox1.Map.BackgroundLayer.Add(layer2);
var gf = new GeometryFactory(new PrecisionModel(), 3857);
//Adds a static layer
var staticLayer = new VectorLayer("Fixed Marker");
//position = geom.GetCentroid();
var aux = new List<IGeometry>();
aux.Add(gf.CreatePoint(geom.Centre));
staticLayer.Style.Symbol = Resources.PumpSmall;
var geoProviderFixed = new SharpMap.Data.Providers.FeatureProvider(aux);
staticLayer.DataSource = geoProviderFixed;
this.mapBox1.Map.Layers.Add(staticLayer);
//Adds a moving variable layer
VectorLayer pushPinLayer = new VectorLayer("PushPins");
position = geom.Centre;
geos.Add(gf.CreatePoint(position));
pushPinLayer.Style.Symbol = Resources.OutfallSmall;
var geoProvider = new SharpMap.Data.Providers.FeatureProvider(geos);
pushPinLayer.DataSource = geoProvider;
this.mapBox1.Map.VariableLayers.Add(pushPinLayer);
this.mapBox1.Map.ZoomToBox(geom);
this.mapBox1.Refresh();
}
public void TestCopyGeometryWithNonDefaultDimension()
{
GeometryFactory gf = new GeometryFactory(CoordinateArraySequenceFactory.Instance);
ICoordinateSequence mpSeq = gf.CoordinateSequenceFactory.Create(1, 2);
mpSeq.SetOrdinate(0, Ordinate.X, 50);
mpSeq.SetOrdinate(0, Ordinate.Y, -2);
IPoint g = gf.CreatePoint(mpSeq);
IPoint geometryN = (IPoint)g.GetGeometryN(0);
ICoordinateSequence gSeq = geometryN.CoordinateSequence;
Assert.AreEqual(2, gSeq.Dimension);
IPoint g2 = (IPoint)Factory.CreateGeometry(g);
ICoordinateSequence g2Seq = g2.CoordinateSequence;
Assert.AreEqual(2, g2Seq.Dimension);
}
public void TestMultiPointDim4()
{
GeometryFactory gf = new GeometryFactory(new PackedCoordinateSequenceFactory());
ICoordinateSequence mpSeq = gf.CoordinateSequenceFactory.Create(1, Ordinates.XYZM);
mpSeq.SetOrdinate(0, Ordinate.X, 50);
mpSeq.SetOrdinate(0, Ordinate.Y, -2);
mpSeq.SetOrdinate(0, Ordinate.Z, 10);
mpSeq.SetOrdinate(0, Ordinate.M, 20);
IMultiPoint mp = gf.CreateMultiPoint(mpSeq);
ICoordinateSequence pSeq = ((Point)mp.GetGeometryN(0)).CoordinateSequence;
Assert.AreEqual(4, pSeq.Dimension);
Assert.AreEqual(Ordinates.XYZM, pSeq.Ordinates);
for (int i = 0; i < 4; i++)
Assert.AreEqual(mpSeq.GetOrdinate(0, (Ordinate)i), pSeq.GetOrdinate(0, (Ordinate)i));
}
/// <summary>
/// Imports a shapefile into a database table.
/// </summary>
/// <remarks>
/// This method assumes a table has already been crated in the database.
/// Calling this method does not close the connection that is passed in.
/// </remarks>
/// <param name="filename"></param>
/// <param name="connectionstring"></param>
/// <param name="tableName"></param>
/// <returns></returns>
public static int ImportShapefile(string filename, string connectionstring, string tableName)
{
using (SqlConnection connection = new SqlConnection(connectionstring))
{
int rowsAdded = -1;
PrecisionModel pm = new PrecisionModel();
GeometryFactory geometryFactory = new GeometryFactory(pm, -1);
DataTable shpDataTable = CreateDataTable(filename, tableName, geometryFactory);
string createTableSql = CreateDbTable(shpDataTable, true);
SqlCommand createTableCommand = new SqlCommand(createTableSql, connection);
connection.Open();
createTableCommand.ExecuteNonQuery();
string sqlSelect = String.Format("select * from {0}", tableName);
SqlDataAdapter selectCommand = new SqlDataAdapter(sqlSelect, connection);
// use a data adaptor - saves donig the inserts ourselves
SqlDataAdapter dataAdapter = new SqlDataAdapter();
dataAdapter.SelectCommand = new SqlCommand(sqlSelect, connection);
SqlCommandBuilder custCB = new SqlCommandBuilder(dataAdapter);
DataSet ds = new DataSet();
// fill dataset
dataAdapter.Fill(ds, shpDataTable.TableName);
// copy rows from our datatable to the empty table in the DataSet
int i = 0;
foreach (DataRow row in shpDataTable.Rows)
{
DataRow newRow = ds.Tables[0].NewRow();
newRow.ItemArray = row.ItemArray;
//gotcha! - new row still needs to be added to the table.
//NewRow() just creates a new row with the same schema as the table. It does
//not add it to the table.
ds.Tables[0].Rows.Add(newRow);
i++;
}
// update all the rows in batch
rowsAdded = dataAdapter.Update(ds, shpDataTable.TableName);
int iRows = shpDataTable.Rows.Count;
Debug.Assert(rowsAdded != iRows, String.Format("{0} of {1] rows were added to the database.", rowsAdded, shpDataTable.Rows.Count));
return rowsAdded;
}
}
public static void main(string[] args)
{
// read a point from a WKT string (using the default point factory)
IGeometry g1 = new WKTReader().Read("LINESTRING (0 0, 10 10, 20 20)");
Console.WriteLine("Geometry 1: " + g1);
// create a point by specifying the coordinates directly
var coordinates = new [] { new Coordinate(0, 0),
new Coordinate(10, 10), new Coordinate(20, 20) };
// use the default factory, which gives full double-precision
IGeometry g2 = new GeometryFactory().CreateLineString(coordinates);
Console.WriteLine("Geometry 2: " + g2);
// compute the intersection of the two geometries
IGeometry g3 = g1.Intersection(g2);
Console.WriteLine("G1 intersection G2: " + g3);
}
public VectorLayer CreateGeometryLayer()
{
var gf = new NetTopologySuite.Geometries.GeometryFactory();
var fdt = new FeatureDataTable();
fdt.Columns.Add(new DataColumn("Name", typeof (String)));
fdt.BeginLoadData();
var fdr = (FeatureDataRow)fdt.LoadDataRow(new[] {(object) "Mayence"}, true);
fdr.Geometry = gf.CreatePoint(new Point(8.1, 50.0));
fdt.EndLoadData();
var vLayer = new VectorLayer("GeometryProvider");
vLayer.DataSource = new FeatureProvider(fdt);
vLayer.SRID = 4326;
return vLayer;
}
/// <summary>
/// Creates a DataTable representing the information in a shape file.
/// </summary>
/// <param name="filename">The filename (minus the . and extension) to read.</param>
/// <param name="tableName">The name to give to the table.</param>
/// <param name="geometryFactory">The geometry factory to use when creating the objects.</param>
/// <returns>DataTable representing the data </returns>
public static DataTable CreateDataTable(string filename, string tableName, GeometryFactory geometryFactory)
{
if (filename == null)
throw new ArgumentNullException("filename");
if (tableName == null)
throw new ArgumentNullException("tableName");
if (geometryFactory == null)
throw new ArgumentNullException("geometryFactory");
ShapefileDataReader shpfileDataReader = new ShapefileDataReader(filename, geometryFactory);
DataTable table = new DataTable(tableName);
// use ICustomTypeDescriptor to get the properies/ fields. This way we can get the
// length of the dbase char fields. Because the dbase char field is translated into a string
// property, we lost the length of the field. We need to know the length of the
// field when creating the table in the database.
IEnumerator enumerator = shpfileDataReader.GetEnumerator();
bool moreRecords = enumerator.MoveNext();
ICustomTypeDescriptor typeDescriptor = (ICustomTypeDescriptor)enumerator.Current;
foreach (PropertyDescriptor property in typeDescriptor.GetProperties())
{
ColumnStructure column = (ColumnStructure)property;
Type fieldType = column.PropertyType;
DataColumn datacolumn = new DataColumn(column.Name, fieldType);
if (fieldType == typeof(string))
// use MaxLength to pass the length of the field in the dbase file
datacolumn.MaxLength = column.Length;
table.Columns.Add(datacolumn);
}
// add the rows - need a do-while loop because we read one row in order to determine the fields
int iRecordCount = 0;
object[] values = new object[shpfileDataReader.FieldCount];
do
{
iRecordCount++;
shpfileDataReader.GetValues(values);
table.Rows.Add(values);
moreRecords = enumerator.MoveNext();
}
while (moreRecords);
return table;
}
public void TestSerializable()
{
var fact = new GeometryFactory();
var gsf = new NetTopologySuite.Utilities.GeometricShapeFactory(fact) ;
gsf.Size = 250;
var g = (Geometry)gsf.CreateCircle();
// serialize the object
byte[] bytes = null;
Assert.DoesNotThrow(() => bytes = SerializationUtility.Serialize(g));
// Assert that there was some serialized content produced
Assert.IsNotNull(bytes, "There was no serialized packet produced");
Assert.IsTrue(bytes.Length > 0, "There was no data in the serialized packet produced");
// deserialize and check
var gCopy = SerializationUtility.Deserialize<Geometry>(bytes);
Assert.IsTrue(gCopy.EqualsExact(g), "The deserialized object does not match the original");
}
public void TestGrid()
{
// Use fixed PM to try and get at least some points hitting the boundary
GeometryFactory geomFactory = new GeometryFactory(pmFixed_1);
// GeometryFactory geomFactory = new GeometryFactory();
PerturbedGridPolygonBuilder gridBuilder = new PerturbedGridPolygonBuilder(geomFactory);
gridBuilder.NumLines = 20;
gridBuilder.LineWidth = 10.0;
IGeometry area = gridBuilder.Geometry;
SimpleRayCrossingPointInAreaLocator pia = new SimpleRayCrossingPointInAreaLocator(area);
PointInAreaStressTester gridTester = new PointInAreaStressTester(geomFactory, area);
gridTester.NumPoints = 100000;
gridTester.TestPointInAreaLocator = pia;
bool isCorrect = gridTester.Run();
Assert.IsTrue(isCorrect);
}
public VectorLayer CreateGeometryLayer()
{
var gf = new NetTopologySuite.Geometries.GeometryFactory();
var fdt = new FeatureDataTable();
fdt.Columns.Add(new DataColumn("Name", typeof(String)));
fdt.BeginLoadData();
var fdr = (FeatureDataRow)fdt.LoadDataRow(new[] { (object)"Mayence" }, true);
fdr.Geometry = gf.CreatePoint(new Point(8.1, 50.0));
fdt.EndLoadData();
var vLayer = new VectorLayer("GeometryProvider");
vLayer.DataSource = new GeometryFeatureProvider(fdt);
vLayer.SRID = 4326;
return(vLayer);
}
public void check_difference_results_with_fixed_precision()
{
GeometryFactory precisionModel = new GeometryFactory(new PrecisionModel(100));
WKTReader reader = new WKTReader(precisionModel);
IGeometry p1 = reader.Read(@"POLYGON ((504927.9 6228865.64, 504969.88 6228833.89, 504980.82 6228861.76, 504927.9 6228865.64))");
IGeometry p2 = reader.Read(@"POLYGON ((504927.9 6228865.64, 504951.14 6228848.06, 504957.42 6228863.47, 504927.9 6228865.64))");
IGeometry test = p1.Difference(p2);
Assert.That(test, Is.Not.Null);
Assert.That(test.IsEmpty, Is.False);
const string expected = @"POLYGON ((504927.9 6228865.64, 504980.82 6228861.76, 504969.88 6228833.89, 504951.14 6228848.06, 504957.42 6228863.47, 504927.9 6228865.64))";
var res = reader.Read(expected);
res.Normalize();
test.Normalize();
Console.WriteLine(test.AsText());
Console.WriteLine(res.AsText());
var hd = new HausdorffSimilarityMeasure();
var resD = hd.Measure(test, res);
Assert.That(1-resD, Is.LessThan(1e7));
}
/// <summary>
/// Converts a Microsoft.Spatial GeographyPolygon to a Polygon.
/// </summary>
/// <param name="geographyPolygon">The Microsoft.Spatial GeographyPolygon.</param>
/// <returns></returns>
public static Polygon ToNtsPolygon(this GeographyPolygon geographyPolygon)
{
if (geographyPolygon == null)
{
return(null);
}
var coords = new List <Coordinate>();
foreach (var ring in geographyPolygon.Rings)
{
foreach (var coord in ring.Points)
{
coords.Add(new Coordinate(coord.Longitude, coord.Latitude));
}
}
var geomFactory = new GeometryFactory(new PrecisionModel(), 4326);
coords.RemoveAt(coords.Count - 1);
//coords.Sort(new CoordinateComparer(CalculateCentre(coords)));
var first = coords.First();
coords.Add(new Coordinate(first.X, first.Y));
var sequence = new CoordinateArraySequence(coords.ToArray());
var poly = new Polygon(
new LinearRing(sequence, geomFactory),
geomFactory);
// Reverse if this is counter clock-wise
if (poly.Shell.IsCCW)
{
poly.Shell.Reverse();
}
return(poly);
}
/**
* See {@link SpatialContext#SpatialContext(com.spatial4j.core.distance.DistanceUnits, com.spatial4j.core.distance.DistanceCalculator, com.spatial4j.core.shape.Rectangle)}.
*
* @param geometryFactory optional
*/
public NtsSpatialContext(GeometryFactory geometryFactory, bool geo, DistanceCalculator calculator, Rectangle worldBounds)
: base(geo, calculator, worldBounds)
{
this.geometryFactory = geometryFactory ?? new GeometryFactory();
}
public void ReadShapeAtIndex_SendNegativeIndex_ShouldThrowException()
{
// Arrange.
m_TmpFile = new TempFileWriter("shape.shp", ShpFiles.Read("UnifiedChecksMaterial"));
m_Reader = new IO.ShapeFile.Extended.ShapeReader(m_TmpFile.Path);
IGeometryFactory factory = new GeometryFactory();
// Act.
m_Reader.ReadShapeAtIndex(-1, factory);
}
public void ReadAllShapes_TryReadAfterDisposed_ShouldThrowException()
{
// Arrange.
m_TmpFile = new TempFileWriter("shape.shp", ShpFiles.Read("UnifiedChecksMaterial"));
m_Reader = new IO.ShapeFile.Extended.ShapeReader(m_TmpFile.Path);
IGeometryFactory factory = new GeometryFactory();
// Act.
m_Reader.Dispose();
m_Reader.ReadAllShapes(factory);
}
private void LoadParcels(List <PointD> pt, Color color, string labelname)
{
SharpMap.Map map = new SharpMap.Map();
List <GeoAPI.Geometries.Coordinate> vertices = new List <GeoAPI.Geometries.Coordinate>();
foreach (PointD i in pt)
{
GeoAPI.Geometries.Coordinate p = new GeoAPI.Geometries.Coordinate();
p.X = i.X;
p.Y = i.Y;
vertices.Add(p);
}
GeoAPI.Geometries.Coordinate l = new GeoAPI.Geometries.Coordinate();
l.X = pt[0].X;
l.Y = pt[0].Y;
vertices.Add(l);
//Collection<GeoAPI.Geometries.IGeometry> geom = new Collection<GeoAPI.Geometries.IGeometry>();
GeometryFactory gf = new NetTopologySuite.Geometries.GeometryFactory();
GeoAPI.Geometries.ILinearRing shell = gf.CreateLinearRing(vertices.ToArray());
GeoAPI.Geometries.IPolygon polygon = gf.CreatePolygon(shell, null);
SharpMap.Data.Providers.GeometryProvider geomProvider = new SharpMap.Data.Providers.GeometryProvider(polygon);
SharpMap.Layers.VectorLayer layerParcels = new SharpMap.Layers.VectorLayer("Parcels");
SharpMap.Styles.VectorStyle style = new SharpMap.Styles.VectorStyle();
style.Fill = new SolidBrush(Color.FromArgb(200, color));
style.Outline = new Pen(new SolidBrush(color));
layerParcels.Style = style;
layerParcels.Style.EnableOutline = true;
layerParcels.DataSource = geomProvider;
layerParcels.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;
var fdt = new SharpMap.Data.FeatureDataTable();
fdt.Columns.Add(new System.Data.DataColumn("id", typeof(uint)));
fdt.Columns.Add(new System.Data.DataColumn("label", typeof(string)));
var fdr = (SharpMap.Data.FeatureDataRow)fdt.NewRow();
fdr.ItemArray = new object[] { 1, labelname };
fdr.Geometry = polygon;
fdt.AddRow(fdr);
var dataprovider = new SharpMap.Data.Providers.GeometryFeatureProvider(fdt);
var ll = new SharpMap.Layers.LabelLayer("llayer");
ll.DataSource = dataprovider;
ll.LabelColumn = "label";
ll.Style.Font = new Font("Eurostile Extended", 16, FontStyle.Bold);
mapBox1.Map.Layers.Add(layerParcels);
mapBox1.Map.Layers.Add(ll);
mapBox1.Map.ZoomToExtents();
mapBox1.Refresh();
}
public List <Object> CalculateDataTable(string polyfile)
{
//List<GeoAPI.Geometries.IGeometry> polys = new List<GeoAPI.Geometries.IGeometry>();
List <GeoAPI.Geometries.IGeometry> squares = new List <GeoAPI.Geometries.IGeometry>();
ArrayList polys = new ArrayList();
List <Object> infoTable = new List <Object>();
double squareArea = 0;//0.015625;
double gridArea = 0;
double polygonArea = 0;
string catchmentID = "";
//////////////
string gridfile = @"M:\DotSpatTopology\tests\NLDAS_Grid_Reference.shp";//"";
string gridproj = @"M:\DotSpatTopology\tests\NLDAS_Grid_Reference.prj";
//////////////
Guid gid = Guid.NewGuid();
string directory = @"M:\\TransientStorage\\" + gid.ToString() + "\\";
//This block is for getting and setting shapefiles for NLDAS Grid
/**
* client.DownloadFile("https://ldas.gsfc.nasa.gov/nldas/gis/NLDAS_Grid_Reference.zip", @"M:\\TransientStorage\\NLDAS.zip");
* ZipFile.ExtractToDirectory(@"M:\\TransientStorage\\NLDAS.zip", @"M:\\TransientStorage\\NLDAS");
* unzippedLocation = (@"M:\\TransientStorage\\NLDAS");
* foreach (string file in Directory.GetFiles(unzippedLocation))
* {
* if (Path.GetExtension(file).Equals(".shp"))
* {
* gridfile = file;
* }
* else if (Path.GetExtension(file).Equals(".prj"))
* {
* gridproj = file;
* }
* }
* client.Dispose();**/
ShapefileDataReader reader2 = new ShapefileDataReader(gridfile, NetTopologySuite.Geometries.GeometryFactory.Default);
while (reader2.Read())
{
squares.Add(reader2.Geometry);
gridArea += reader2.Geometry.Area;
}
reader2.Dispose();
//if (polyfile.StartsWith(@"{""type"": ""FeatureCollection"""))
if (polyfile.StartsWith(@"{""type"":"))//.geojson
{
Boolean version1 = true;
string[] featureParams = new string[3];
string jsonfile = polyfile;
var readera = new NetTopologySuite.IO.GeoJsonReader();
NetTopologySuite.Features.FeatureCollection result = readera.Read <NetTopologySuite.Features.FeatureCollection>(jsonfile);
if (result[0].Attributes.GetNames().Contains("HUC_8"))
{
version1 = false;
featureParams[0] = "OBJECTID";
featureParams[1] = "HUC_8";
featureParams[2] = "HUC_12";
}
else if (result[0].Attributes.GetNames().Contains("HUC8"))
{
version1 = true;
featureParams[0] = "COMID";
featureParams[1] = "HUC8";
featureParams[2] = "HUC12";
}
else
{
version1 = false;
featureParams[0] = null;
featureParams[1] = null;
featureParams[2] = null;
}
List <Object> huc8Table = new List <Object>();
huc8Table.Add(new KeyValuePair <string, string>("HUC 8 ID: ", result[0].Attributes[featureParams[1]].ToString()));
for (int i = 0; i < result.Count; i++)
{
List <Object> huc12Table = new List <Object>();
if (version1)
{
huc12Table.Add(new KeyValuePair <string, string>("HUC 12 ID: ", null));
}
else
{
huc12Table.Add(new KeyValuePair <string, string>("HUC 12 ID: ", result[i].Attributes["HUC_12"].ToString()));
}
catchmentID = result[i].Attributes[featureParams[0]].ToString();
huc12Table.Add(new KeyValuePair <string, string>("Catchment ID: ", catchmentID));
foreach (GeoAPI.Geometries.IGeometry s in squares)
{
double interArea = 0.0;
squareArea = s.Area;
if (result[i].Geometry.Intersects(s))
{
GeoAPI.Geometries.IGeometry intersection = result[i].Geometry.Intersection(s);
interArea += intersection.Area;
double percent2 = (interArea / squareArea) * 100;
Dictionary <string, string> catchTable = new Dictionary <string, string>();
//catchTable.Add("catchmentID", catchmentID);
catchTable.Add("latitude", s.Centroid.X.ToString());
catchTable.Add("longitude", s.Centroid.Y.ToString());
catchTable.Add("cellArea", squareArea.ToString());
catchTable.Add("containedArea", interArea.ToString());
catchTable.Add("percentArea", percent2.ToString());
huc12Table.Add(catchTable);
}
}
huc8Table.Add(huc12Table);
}
infoTable.Add(huc8Table);
}
else //Huc ID
{
catchmentID = polyfile;
string ending = polyfile + ".zip";
WebClient client = new WebClient();
DirectoryInfo di = Directory.CreateDirectory(directory);
client.DownloadFile("ftp://newftp.epa.gov/exposure/NHDV1/HUC12_Boundries/" + ending, directory + ending);
string projfile = "";
string dataFile = "";
ZipFile.ExtractToDirectory(directory + ending, directory + polyfile);
string unzippedLocation = (directory + polyfile + "\\" + polyfile); //+ "\\NHDPlus" + polyfile + "\\Drainage");
foreach (string file in Directory.GetFiles(unzippedLocation))
{
if (Path.GetExtension(file).Equals(".shp"))
{
polyfile = file;
}
else if (Path.GetExtension(file).Equals(".prj"))
{
projfile = file;
}
else if (Path.GetExtension(file).Equals(".dbf"))
{
dataFile = file;
}
}
//This block is for setting projection parameters of input shapefile and projecting it to NLDAS grid
//Reprojecting of coordinates is not needed for NHDPlus V2
string line = System.IO.File.ReadAllText(projfile);
string[] projParams = { "PARAMETER", @"PARAMETER[""latitude_Of_origin"",0]," };//@"PARAMETER[""false_easting"",0],", @"PARAMETER[""false_northing"",0],", @"PARAMETER[""central_meridian"",0],", @"PARAMETER[""standard_parallel_1"",0],", @"PARAMETER[""standard_parallel_2"",0],", @"PARAMETER[""latitude_Of_origin"",0]," };
int ptr = 0;
foreach (string x in projParams)
{
if (line.Contains(x))
{
ptr = line.IndexOf(x);
}
else if (!line.Contains(x) && !x.Equals("PARAMETER"))
{
line = line.Insert(ptr, x);
}
}
string line2 = System.IO.File.ReadAllText(gridproj);
IProjectedCoordinateSystem pcs = CoordinateSystemWktReader.Parse(line) as IProjectedCoordinateSystem;
IGeographicCoordinateSystem gcs = GeographicCoordinateSystem.WGS84 as IGeographicCoordinateSystem;
CoordinateTransformationFactory ctfac = new CoordinateTransformationFactory();
ICoordinateTransformation transformTo = ctfac.CreateFromCoordinateSystems(pcs, gcs);
IMathTransform inverseTransformTo = transformTo.MathTransform;
//Read geometries from both shapefiles and store in array lists
//As well as calculate shapefile areas ahead of time
ShapefileDataReader reader = new ShapefileDataReader(polyfile, NetTopologySuite.Geometries.GeometryFactory.Default);
while (reader.Read())
{
//Reprojection not needed for NHDPLUSV2
CoordinateList cordlist = new CoordinateList();
foreach (Coordinate coord in reader.Geometry.Coordinates)
{
double[] newCoord = { coord.X, coord.Y };
newCoord = inverseTransformTo.Transform(newCoord);
Coordinate newpt = new Coordinate(newCoord[0], newCoord[1]);
cordlist.Add(newpt);
}
Coordinate[] listofpts = cordlist.ToCoordinateArray();
IGeometryFactory geoFactory = new NetTopologySuite.Geometries.GeometryFactory();
NetTopologySuite.Geometries.LinearRing linear = (NetTopologySuite.Geometries.LinearRing) new GeometryFactory().CreateLinearRing(listofpts);
Polygon projPoly = new Polygon(linear, null, geoFactory);
polys.Add(projPoly);
polygonArea += projPoly.Area;
}
reader.Dispose();
List <Object> huc8Table = new List <Object>();
huc8Table.Add(new KeyValuePair <string, string>("HUC 8 ID: ", catchmentID));
foreach (Polygon p in polys)
{
List <Object> huc12Table = new List <Object>();
huc12Table.Add(new KeyValuePair <string, string>("HUC 12 ID: ", null));
catchmentID = null;//result[i].Attributes["OBJECTID"].ToString();
huc12Table.Add(new KeyValuePair <string, string>("Catchment ID: ", catchmentID));
foreach (GeoAPI.Geometries.IGeometry s in squares)
{
double interArea = 0.0;
squareArea = s.Area;
if (p.Intersects(s))
{
GeoAPI.Geometries.IGeometry intersection = p.Intersection(s);
interArea += intersection.Area;
double percent2 = (interArea / squareArea) * 100;
Dictionary <string, string> catchTable = new Dictionary <string, string>();
//catchTable.Add("catchmentID", catchmentID);
catchTable.Add("latitude", s.Centroid.X.ToString());
catchTable.Add("longitude", s.Centroid.Y.ToString());
catchTable.Add("cellArea", squareArea.ToString());
catchTable.Add("containedArea", interArea.ToString());
catchTable.Add("percentArea", percent2.ToString());
huc12Table.Add(catchTable);
}
}
huc8Table.Add(huc12Table);
}
infoTable.Add(huc8Table);
}
//System.IO.DirectoryInfo del = new DirectoryInfo(directory);
/*
* foreach (FileInfo file in del.GetFiles())
* {
* file.Delete();
* }
* foreach (DirectoryInfo dir in del.GetDirectories())
* {
* dir.Delete(true);
* }*/
//del.Delete(true);
/////
//infoTable.Add(new List<Object>() { elapsedTime, elapsedTime, elapsedTime, elapsedTime });
//////
return(infoTable);
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// using the given <paramref name="precisionModel"/>.
/// </summary>
/// <param name="precisionModel">
/// The <see cref="NetTopologySuite.Geometries.PrecisionModel"/>
/// to use for define the precision of the geometry operations.
/// </param>
/// <seealso cref="PrecisionModels"/>
/// <seealso cref="NetTopologySuite.Geometries.GeometryFactory"/>
protected internal NtsProvider(NetTopologySuite.Geometries.PrecisionModel precisionModel)
{
geometryFactory = new NetTopologySuite.Geometries.GeometryFactory(precisionModel);
}
/// <summary>
/// Constructs a <c>MultiPoint</c>.
/// </summary>
/// <param name="points">
/// The <c>Point</c>s for this <c>MultiPoint</c>
/// , or <c>null</c> or an empty array to create the empty point.
/// Elements may be empty <c>Point</c>s, but not <c>null</c>s.
/// </param>
/// <param name="factory"></param>
public MultiPoint(Point[] points, GeometryFactory factory) : base(points, factory)
{
}
public List <Object> CalculateDataTable(string polyfile)
{
//Calling EPA WATERS:
//https://ofmpub.epa.gov/waters10/SpatialAssignment.Service?pGeometry=POINT(-76.7498+37.5)&pLayer=NHDPLUS_CATCHMENT&pAssignmentHint=9894716&pReturnGeometry=TRUE
//List<GeoAPI.Geometries.IGeometry> polys = new List<GeoAPI.Geometries.IGeometry>();
List <GeoAPI.Geometries.IGeometry> squares = new List <GeoAPI.Geometries.IGeometry>();
ArrayList polys = new ArrayList();
ArrayList polyfeats = new ArrayList();
List <Object> infoTable = new List <Object>();
double squareArea = 0;//0.015625;
double gridArea = 0;
double polygonArea = 0;
string catchmentID = "";
//////////////
string gridfile = @"M:\DotSpatTopology\tests\NLDAS_Grid_Reference.shp";//"";
string gridproj = @"M:\DotSpatTopology\tests\NLDAS_Grid_Reference.prj";
//////////////
Guid gid = Guid.NewGuid();
string directory = @"M:\\TransientStorage\\" + gid.ToString() + "\\";
//This block is for getting and setting shapefiles for NLDAS Grid
/**
* client.DownloadFile("https://ldas.gsfc.nasa.gov/nldas/gis/NLDAS_Grid_Reference.zip", @"M:\\TransientStorage\\NLDAS.zip");
* ZipFile.ExtractToDirectory(@"M:\\TransientStorage\\NLDAS.zip", @"M:\\TransientStorage\\NLDAS");
* unzippedLocation = (@"M:\\TransientStorage\\NLDAS");
* foreach (string file in Directory.GetFiles(unzippedLocation))
* {
* if (Path.GetExtension(file).Equals(".shp"))
* {
* gridfile = file;
* }
* else if (Path.GetExtension(file).Equals(".prj"))
* {
* gridproj = file;
* }
* }
* client.Dispose();**/
ShapefileDataReader reader2 = new ShapefileDataReader(gridfile, NetTopologySuite.Geometries.GeometryFactory.Default);
while (reader2.Read())
{
squares.Add(reader2.Geometry);
gridArea += reader2.Geometry.Area;
}
reader2.Dispose();
//if (polyfile.StartsWith(@"{""type"": ""FeatureCollection"""))
if (polyfile.StartsWith(@"{""type"":"))//.geojson
{
Boolean version1 = true;
string[] featureParams = new string[3];
string jsonfile = polyfile;
var readera = new NetTopologySuite.IO.GeoJsonReader();
NetTopologySuite.Features.FeatureCollection result = readera.Read <NetTopologySuite.Features.FeatureCollection>(jsonfile);
if (result[0].Attributes.GetNames().Contains("HUC_8"))
{
version1 = false;
featureParams[0] = "OBJECTID";
featureParams[1] = "HUC_8";
featureParams[2] = "HUC_12";
}
else if (result[0].Attributes.GetNames().Contains("HUC8"))
{
version1 = true;
featureParams[0] = "COMID";
featureParams[1] = "HUC8";
featureParams[2] = "HUC12";
}
else
{
version1 = false;
featureParams[0] = null;
featureParams[1] = null;
featureParams[2] = null;
}
List <Object> huc8Table = new List <Object>();
Dictionary <string, string> h8 = new Dictionary <string, string>();
h8.Add("HUC 8 ID: ", result[0].Attributes[featureParams[1]].ToString());
huc8Table.Add(h8);
//huc8Table.Add(new KeyValuePair<string, string>("HUC 8 ID: ", result[0].Attributes[featureParams[1]].ToString()));
for (int i = 0; i < result.Count; i++)
{
List <Object> huc12Table = new List <Object>();
if (version1)
{
huc12Table.Add(new KeyValuePair <string, string>("HUC 12 ID: ", null));
}
else
{
Dictionary <string, string> h12 = new Dictionary <string, string>();
h12.Add("HUC 12 ID: ", result[i].Attributes["HUC_12"].ToString());
huc12Table.Add(h12);
//huc12Table.Add(new KeyValuePair<string, string>("HUC 12 ID: ", result[i].Attributes["HUC_12"].ToString()));
}
catchmentID = result[i].Attributes[featureParams[0]].ToString();
Dictionary <string, string> cm = new Dictionary <string, string>();
cm.Add("Catchment ID: ", catchmentID);
huc12Table.Add(cm);
//huc12Table.Add(new KeyValuePair<string, string>("Catchment ID: ", catchmentID));
foreach (GeoAPI.Geometries.IGeometry s in squares)
{
double interArea = 0.0;
squareArea = s.Area;
if (result[i].Geometry.Intersects(s))
{
GeoAPI.Geometries.IGeometry intersection = result[i].Geometry.Intersection(s);
interArea += intersection.Area;
double percent2 = (interArea / squareArea) * 100;
Dictionary <string, string> catchTable = new Dictionary <string, string>();
//catchTable.Add("catchmentID", catchmentID);
catchTable.Add("latitude", s.Centroid.X.ToString());
catchTable.Add("longitude", s.Centroid.Y.ToString());
catchTable.Add("cellArea", squareArea.ToString());
catchTable.Add("containedArea", interArea.ToString());
catchTable.Add("percentArea", percent2.ToString());
huc12Table.Add(catchTable);
}
}
huc8Table.Add(huc12Table);
}
infoTable.Add(huc8Table);
}
else //Huc ID
{
catchmentID = polyfile;
string ending = polyfile + ".zip";
WebClient client = new WebClient();
DirectoryInfo di = Directory.CreateDirectory(directory);
client.DownloadFile("ftp://newftp.epa.gov/exposure/NHDV1/HUC12_Boundries/" + ending, directory + ending);
string projfile = "";
string dataFile = "";
ZipFile.ExtractToDirectory(directory + ending, directory + polyfile);
string unzippedLocation = (directory + polyfile + "\\" + polyfile); //+ "\\NHDPlus" + polyfile + "\\Drainage");
foreach (string file in Directory.GetFiles(unzippedLocation))
{
if (Path.GetExtension(file).Equals(".shp"))
{
polyfile = file;
}
else if (Path.GetExtension(file).Equals(".prj"))
{
projfile = file;
}
else if (Path.GetExtension(file).Equals(".dbf"))
{
dataFile = file;
}
}
//This block is for setting projection parameters of input shapefile and projecting it to NLDAS grid
//Reprojecting of coordinates is not needed for NHDPlus V2
string line = System.IO.File.ReadAllText(projfile);
//string line = @"PROJCS[""unnamed"",GEOGCS[""unnamed ellipse"",DATUM[""unknown"",SPHEROID[""unnamed"",6378137,0]],PRIMEM[""Greenwich"",0],UNIT[""degree"",0.0174532925199433]],PROJECTION[""Mercator_2SP""],PARAMETER[""latitude_of_origin"",0],PARAMETER[""standard_parallel_1"",0],PARAMETER[""central_meridian"",0],PARAMETER[""false_easting"",0],PARAMETER[""false_northing"",0],UNIT[""Meter"",1]]";//System.IO.File.ReadAllText(projfile);
string[] projParams = { "PARAMETER", @"PARAMETER[""latitude_of_origin"",0]," };//@"PARAMETER[""false_easting"",0],", @"PARAMETER[""false_northing"",0],", @"PARAMETER[""central_meridian"",0],", @"PARAMETER[""standard_parallel_1"",0],", @"PARAMETER[""standard_parallel_2"",0],", @"PARAMETER[""latitude_Of_origin"",0]," };
int ptr = 0;
foreach (string x in projParams)
{
if (line.Contains(x))
{
ptr = line.IndexOf(x);
}
else if (!line.Contains(x) && !x.Equals("PARAMETER"))
{
line = line.Insert(ptr, x);
}
}
string line2 = System.IO.File.ReadAllText(gridproj);
IProjectedCoordinateSystem pcs = CoordinateSystemWktReader.Parse(line) as IProjectedCoordinateSystem;
IGeographicCoordinateSystem gcs = GeographicCoordinateSystem.WGS84 as IGeographicCoordinateSystem;
CoordinateTransformationFactory ctfac = new CoordinateTransformationFactory();
ICoordinateTransformation transformTo = ctfac.CreateFromCoordinateSystems(pcs, gcs);
IMathTransform inverseTransformTo = transformTo.MathTransform;
//Read geometries from both shapefiles and store in array lists
ShapefileDataReader reader = new ShapefileDataReader(polyfile, NetTopologySuite.Geometries.GeometryFactory.Default);
DbaseFileHeader header = reader.DbaseHeader;
string huc8 = "";
while (reader.Read())
{
//Reprojection not needed for NHDPLUSV2
CoordinateList cordlist = new CoordinateList();
foreach (Coordinate coord in reader.Geometry.Coordinates)
{
double[] newCoord = { coord.X, coord.Y };
newCoord = inverseTransformTo.Transform(newCoord);
Coordinate newpt = new Coordinate(newCoord[0], newCoord[1]);
cordlist.Add(newpt);
}
Coordinate[] listofpts = cordlist.ToCoordinateArray();
IGeometryFactory geoFactory = new NetTopologySuite.Geometries.GeometryFactory();
NetTopologySuite.Geometries.LinearRing linear = (NetTopologySuite.Geometries.LinearRing) new GeometryFactory().CreateLinearRing(listofpts);
Feature feature = new Feature();
AttributesTable attributesTable = new AttributesTable();
string[] keys = new string[header.NumFields];
IGeometry geometry = (Geometry)reader.Geometry;
for (int i = 0; i < header.NumFields; i++)
{
DbaseFieldDescriptor fldDescriptor = header.Fields[i];
keys[i] = fldDescriptor.Name;
attributesTable.AddAttribute(fldDescriptor.Name, reader.GetValue(i));
}
feature.Geometry = geometry;
feature.Attributes = attributesTable;
polyfeats.Add(feature.Attributes);
huc8 = attributesTable.GetValues()[5].ToString();
Polygon projPoly = new Polygon(linear, null, geoFactory);
polys.Add(projPoly);
polygonArea += projPoly.Area;
}
reader.Dispose();
List <Object> huc8Table = new List <Object>();
Dictionary <string, string> h8 = new Dictionary <string, string>();
h8.Add("HUC 8 ID: ", catchmentID);
huc8Table.Add(h8);
int j = 0;
foreach (Polygon p in polys)
{
List <Object> huc12Table = new List <Object>();
Dictionary <string, string> cm = new Dictionary <string, string>();
//
AttributesTable tab = (AttributesTable)polyfeats[j];
object[] valuesl = tab.GetValues();
cm.Add("HUC 12 ID: ", valuesl[17].ToString());
huc12Table.Add(cm);
//huc12Table.Add(new KeyValuePair<string, string>("HUC 12 ID: ", null));
catchmentID = null;//result[i].Attributes["OBJECTID"].ToString();
Dictionary <string, string> cm2 = new Dictionary <string, string>();
cm2.Add("Catchment ID: ", catchmentID);
huc12Table.Add(cm2);
//huc12Table.Add(new KeyValuePair<string, string>("Catchment ID: ", catchmentID));
foreach (GeoAPI.Geometries.IGeometry s in squares)
{
double interArea = 0.0;
squareArea = s.Area;
if (p.Intersects(s))
{
GeoAPI.Geometries.IGeometry intersection = p.Intersection(s);
interArea += intersection.Area;
double percent2 = (interArea / squareArea) * 100;
Dictionary <string, string> catchTable = new Dictionary <string, string>();
//catchTable.Add("catchmentID", catchmentID);
catchTable.Add("latitude", s.Centroid.X.ToString());
catchTable.Add("longitude", s.Centroid.Y.ToString());
catchTable.Add("cellArea", squareArea.ToString());
catchTable.Add("containedArea", interArea.ToString());
catchTable.Add("percentArea", percent2.ToString());
huc12Table.Add(catchTable);
}
}
huc8Table.Add(huc12Table);
j++;
}
infoTable.Add(huc8Table);
}
//System.IO.DirectoryInfo del = new DirectoryInfo(directory);
/*
* foreach (FileInfo file in del.GetFiles())
* {
* file.Delete();
* }
* foreach (DirectoryInfo dir in del.GetDirectories())
* {
* dir.Delete(true);
* }*/
//del.Delete(true);
return(infoTable);
}
/* BEGIN ADDED BY MPAUL42: monoGIS team */
/// <summary>
/// Constructs a <c>Polygon</c> with the given exterior boundary.
/// </summary>
/// <param name="shell">
/// The outer boundary of the new <c>Polygon</c>,
/// or <c>null</c> or an empty <c>LinearRing</c> if the empty
/// polygon is to be created.
/// </param>
/// <param name="factory"></param>
public Polygon(LinearRing shell, GeometryFactory factory) : this(shell, null, factory)
{
}
/// <summary>
/// Constructs a <c>LinearRing</c> with the vertices specified
/// by the given <see cref="CoordinateSequence"/>.
/// </summary>
/// <param name="points">A sequence points forming a closed and simple linestring,
/// or <c>null</c> to create the empty geometry.</param>
/// <param name="factory">The factory that creates this <c>LinearRing</c></param>
/// <exception cref="ArgumentException">If the ring is not closed, or has too few points</exception>
public LinearRing(CoordinateSequence points, GeometryFactory factory)
: base(points, factory)
{
ValidateConstruction();
}
/// <summary>
/// Constructs a <c>MultiPolygon</c>.
/// </summary>
/// <param name="polygons">
/// The <c>Polygon</c>s for this <c>MultiPolygon</c>
/// , or <c>null</c> or an empty array to create the empty point.
/// Elements may be empty <c>Polygon</c>s, but not <c>null</c>
/// s. The polygons must conform to the assertions specified in the
/// <see href="http://www.opengis.org/techno/specs.htm"/> OpenGIS Simple Features
/// Specification for SQL.
/// </param>
/// <param name="factory"></param>
public MultiPolygon(Polygon[] polygons, GeometryFactory factory) : base(polygons, factory)
{
}
public void TestML()
{
{
const double scale = 2.0E10;
IPrecisionModel precisionModel = new PrecisionModel(scale);
IGeometryFactory geometryFactory = new GeometryFactory(precisionModel);
var reader = new WKTReader(geometryFactory);
var lineStringA = (ILineString)
reader.Read("LINESTRING (-93.40178610435 -235.5437531975, -401.24229900825 403.69365857925)");
var lineStringB = (ILineString)
reader.Read("LINESTRING (-50.0134121926 -145.44686640725, -357.8539250965 493.7905453695)");
var lineStringC = (ILineString)
reader.Read("LINESTRING (-193.8964147753 -30.64653554935, -186.68866383205 -34.1176054623)");
var middlePoint = (IPoint) reader.Read("POINT (-203.93366864454998 174.171839481125)");
var lineStrings = new List<ILineString>();
lineStrings.Add(lineStringA);
lineStrings.Add(lineStringB);
lineStrings.Add(lineStringC);
var noder = new GeometryNoder(geometryFactory.PrecisionModel);
var nodedLineStrings = noder.Node(lineStrings.ToArray());
var shortestDistanceToPointBeforeNoding = double.MaxValue;
foreach (var lineString in lineStrings)
{
shortestDistanceToPointBeforeNoding = Math.Min(lineString.Distance(middlePoint),
shortestDistanceToPointBeforeNoding);
}
var shortestDistanceToPointAfterNoding = Double.MaxValue;
foreach (var lineString in nodedLineStrings)
{
shortestDistanceToPointAfterNoding = Math.Min(lineString.Distance(middlePoint),
shortestDistanceToPointAfterNoding);
}
var difference = Math.Abs(shortestDistanceToPointAfterNoding - shortestDistanceToPointBeforeNoding);
Console.WriteLine("Scale: {0}", scale);
Console.WriteLine("Distance to point before noding: {0}", shortestDistanceToPointBeforeNoding);
Console.WriteLine("Distance to point after noding: {0}", shortestDistanceToPointAfterNoding);
Console.WriteLine("Difference is {0} and should be lesser than {1}", difference, 1.0/scale);
const double roughTolerance = 10.0;
Assert.IsTrue(difference < roughTolerance, "this difference should should be lesser than " + 1.0/scale);
}
}
public static System.Collections.Generic.List <OSM.API.v0_6.GeoPoint> GetUnionPolygon(
System.Collections.Generic.IEnumerable <System.Collections.Generic.IEnumerable <OSM.API.v0_6.GeoPoint> > polygons)
{
NetTopologySuite.Geometries.GeometryFactory geomFactory = new NetTopologySuite.Geometries.GeometryFactory();
System.Collections.Generic.List <NetTopologySuite.Geometries.Geometry> lsPolygons =
new System.Collections.Generic.List <NetTopologySuite.Geometries.Geometry>();
foreach (System.Collections.Generic.IEnumerable <OSM.API.v0_6.GeoPoint> coords in polygons)
{
NetTopologySuite.Geometries.Polygon poly = geomFactory.CreatePolygon(ToNetTopologyCoordinates(coords));
lsPolygons.Add(poly);
}
NetTopologySuite.Geometries.Geometry ig = NetTopologySuite.Operation.Union.CascadedPolygonUnion.Union(lsPolygons);
System.Console.WriteLine(ig.GetType().FullName);
if (ig is NetTopologySuite.Geometries.Polygon)
{
System.Console.WriteLine("mulip");
goto SIMPLIFY_POLYGON_AND_GET_UNION;
}
if (!(ig is NetTopologySuite.Geometries.MultiPolygon))
{
System.Console.WriteLine("Error: Geometry is not a multipolygon!");
throw new System.InvalidOperationException("Geometry is not a multipolygon");
}
NetTopologySuite.Geometries.MultiPolygon lalala = (NetTopologySuite.Geometries.MultiPolygon)ig;
// var convaveHull = ConcaveHull.Init.foo(lalala.Coordinates);
// convaveHull = ToCounterClockWise(convaveHull);
// return convaveHull;
// var cc = new NetTopologySuite.Hull.ConcaveHull(ig, 0);
// var cc = new NetTopologySuite.Hull.ConcaveHull(ig, 0.00049);
var cc = new NetTopologySuite.Hull.ConcaveHull(ig, 0.00001);
ig = cc.GetConcaveHull;
SIMPLIFY_POLYGON_AND_GET_UNION:
ig = NetTopologySuite.Simplify.DouglasPeuckerSimplifier.Simplify(ig, 0.00001);
NetTopologySuite.Geometries.Polygon unionPolygon = (NetTopologySuite.Geometries.Polygon)ig;
System.Console.WriteLine(unionPolygon.Shell.Coordinates);
System.Collections.Generic.List <OSM.API.v0_6.GeoPoint> lsUnionPolygonPoints = new System.Collections.Generic.List <OSM.API.v0_6.GeoPoint>();
for (int i = 0; i < unionPolygon.Shell.Coordinates.Length; ++i)
{
lsUnionPolygonPoints.Add(new OSM.API.v0_6.GeoPoint(unionPolygon.Shell.Coordinates[i].X, unionPolygon.Shell.Coordinates[i].Y));
}
lsUnionPolygonPoints = ToCounterClockWise(lsUnionPolygonPoints);
return(lsUnionPolygonPoints);
}
private void ComputeConvexHull()
{
GeometryFactory fact = new GeometryFactory();
Coordinate[] coords = GetPointArray();
ConvexHull hull = new ConvexHull(coords, fact);
_convexHull = hull.GetConvexHull();
}
/// <summary>
/// Constructs a <c>MultiLineString</c>.
/// </summary>
/// <param name="lineStrings">
/// The <c>LineString</c>s for this <c>MultiLineString</c>,
/// or <c>null</c> or an empty array to create the empty
/// point. Elements may be empty <c>LineString</c>s,
/// but not <c>null</c>s.
/// </param>
/// <param name="factory"></param>
public MultiLineString(LineString[] lineStrings, GeometryFactory factory)
: base(lineStrings, factory)
{
}