public XmlTestFactory(PrecisionModel pm, IGeometryOperation geometryOperation, IResultMatcher resultMatcher)
{
ObjGeometryFactory = new GeometryFactory(pm);
_geometryOperation = geometryOperation;
_resultMatcher = resultMatcher;
_objReader = new WKTOrWKBReader(ObjGeometryFactory);
}
public void TestMakePrecise()
{
var pm10 = new PrecisionModel(0.1);
PreciseCoordinateTester(pm10, 1200.4, 1240.4, 1200, 1240);
PreciseCoordinateTester(pm10, 1209.4, 1240.4, 1210, 1240);
}
public static IGeometry ReducePrecisionPointwise(IGeometry geom, double scaleFactor)
{
var pm = new PrecisionModel(scaleFactor);
var reducedGeom = GeometryPrecisionReducer.Reduce(geom, pm);
return reducedGeom;
}
/// <summary>Reduces precision pointwise, then snap-rounds.
/// <para/>
/// Note that output set may not contain non-unique linework
/// (and thus cannot be used as input to Polygonizer directly).
/// <c>UnaryUnion</c> is one way to make the linework unique.
/// </summary>
/// <param name="geom">A Geometry containing linework to node</param>
/// <param name="scaleFactor">The precision model scale factor to use</param>
/// <returns>The noded, snap-rounded linework</returns>
public static IGeometry SnapRoundLines(
IGeometry geom, double scaleFactor)
{
var pm = new PrecisionModel(scaleFactor);
var gsr = new GeometrySnapRounder(pm);
gsr.LineworkOnly =true;
var snapped = gsr.Execute(geom);
return snapped;
}
public void TestMakePreciseNegative()
{
var pm1 = new PrecisionModel(1);
PreciseCoordinateTester(pm1, -10, -10, -10, -10);
PreciseCoordinateTester(pm1, -9.9, -9.9, -10, -10);
//We use "Asymmetric Arithmetic Rounding", that's is why this is true:
PreciseCoordinateTester(pm1, -9.5, -9.5, -9, -9);
}
public static IGeometry MCIndexNodingWithPrecision(IGeometry geom, double scaleFactor)
{
IPrecisionModel fixedPM = new PrecisionModel(scaleFactor);
LineIntersector li = new RobustLineIntersector();
li.PrecisionModel = fixedPM;
INoder noder = new MCIndexNoder(new IntersectionAdder(li));
noder.ComputeNodes(SegmentStringUtil.ExtractNodedSegmentStrings(geom));
return SegmentStringUtil.ToGeometry(noder.GetNodedSubstrings(), geom.Factory);
}
public void large_decimals_are_formatted_properly()
{
const string expected = "123456789012345680";
const decimal m = 123456789012345680;
IPrecisionModel precisionModel = new PrecisionModel(1E9);
NumberFormatInfo formatter = CreateFormatter(precisionModel);
string format = "0." + StringOfChar('#', formatter.NumberDecimalDigits);
string actual = m.ToString(format, formatter);
Assert.That(actual, Is.EqualTo(expected));
}
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 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 static IGeometry NodeWithPointwisePrecision(IGeometry geom, double scaleFactor)
{
var pm = new PrecisionModel(scaleFactor);
var roundedGeom = GeometryPrecisionReducer.Reduce(geom, pm);
var geomList = new List<IGeometry>();
geomList.Add(roundedGeom);
var noder = new GeometryNoder(pm);
var lines = noder.Node(geomList);
return Utility.FunctionsUtil.getFactoryOrDefault(geom).BuildGeometry(CollectionUtil.Cast<IGeometry>((ICollection)lines));
}
public void large_doubles_arent_formatted_properly()
{
/*
* http://stackoverflow.com/questions/2105096/why-is-tostring-rounding-my-double-value
*
* By default, the return value only contains 15 digits of precision although a maximum of 17 digits is maintained internally.
*/
const string expected = "123456789012345680";
const double d = 123456789012345680;
IPrecisionModel precisionModel = new PrecisionModel(1E9);
NumberFormatInfo formatter = CreateFormatter(precisionModel);
string format = "0." + StringOfChar('#', formatter.NumberDecimalDigits);
string actual = d.ToString(format, formatter);
Assert.That(actual, Is.Not.EqualTo(expected));
}
/// <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 IGeometry SnapRound(
IGeometry geomA, IGeometry geomB,
double scaleFactor)
{
var pm = new PrecisionModel(scaleFactor);
var geom = geomA;
if (geomB != null)
{
geom = geomA.Factory.CreateGeometryCollection(new IGeometry[] { geomA, geomB });
}
GeometrySnapRounder gsr = new GeometrySnapRounder(pm);
var snapped = gsr.Execute(geom);
return snapped;
}
public void TestWriteLargeNumbers3()
{
IPrecisionModel precisionModel = new PrecisionModel(1E9);
IGeometryFactory geometryFactory = new GeometryFactory(precisionModel, 0);
IPoint point1 = geometryFactory.CreatePoint(new Coordinate(123456789012345678000000E9d, 10E9));
Assert.AreEqual(123456789012345690000000000000000d, point1.X);
Assert.AreEqual(10000000000d, point1.Y);
Assert.AreNotEqual("POINT (123456789012345690000000000000000 10000000000)", point1.AsText());
Assert.AreEqual("POINT (123456789012346000000000000000000 10000000000)", point1.AsText());
}
public void TestParameterlessConstructor()
{
var p = new PrecisionModel();
//Implicit precision model has scale 0
Assert.AreEqual(0, p.Scale, 1E-10);
}
/// <summary>
/// Copy constructor to create a new <c>PrecisionModel</c>
/// from an existing one.
/// </summary>
/// <param name="pm"></param>
public PrecisionModel(PrecisionModel pm)
{
_modelType = pm._modelType;
_scale = pm._scale;
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
/// <param name="operation">
/// The <see cref="GeometryOperationDelegate"/> to apply
/// to all geometry elements in the <paramref name="provider"/>.
/// </param>
/// <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"/>
public NtsProvider(IFeatureProvider provider, GeometryOperationDelegate operation,
NetTopologySuite.Geometries.PrecisionModel precisionModel) : this(provider, precisionModel)
{
operation(features);
}
/// <summary>
/// Constructs a GeometryFactory that generates Geometries having the given
/// <c>PrecisionModel</c> and spatial-reference ID, and the default CoordinateSequence
/// implementation.
/// </summary>
/// <param name="precisionModel">The PrecisionModel to use.</param>
/// <param name="srid">The SRID to use.</param>
public GeometryFactory(PrecisionModel precisionModel, int srid) :
this(precisionModel, srid, GetDefaultCoordinateSequenceFactory())
{
}
public void TestWriteLargeNumbers2()
{
IPrecisionModel precisionModel = new PrecisionModel(1E9);
IGeometryFactory geometryFactory = new GeometryFactory(precisionModel, 0);
IPoint point1 = geometryFactory.CreatePoint(new Coordinate(1234d, 10E9));
Assert.AreEqual("POINT (1234 10000000000)", point1.AsText());
}
///<summary>
/// Convenience method for doing precision reduction on a single geometry,
/// with collapses removed and keeping the geometry precision model the same.
///</summary>
/// <returns>The reduced geometry</returns>
public static IGeometry Reduce(IGeometry g, PrecisionModel precModel)
{
var reducer = new SimpleGeometryPrecisionReducer(precModel);
return reducer.Reduce(g);
}
public NtsPrecisionModel(PrecisionModelType modelType, int scale)
{
WrappedPrecisionModel = new PrecisionModel(scale);
}
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 bool LoadFile(string fileName)
{
if (!File.Exists(fileName))
{
throw new ArgumentException(fileName,
"The file does not exits or the 'fileName' is not valid.");
}
try
{
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(fileName);
XmlElement root = xmldoc.DocumentElement;
// Retrieve the "desc" tag, if any.
XmlNode desc = root["desc"];
string strTestDescription = String.Empty;
if (desc != null && desc.InnerText.Length > 0)
{
strTestDescription = desc.InnerText;
}
else
{
strTestDescription = Path.GetFileNameWithoutExtension(fileName);
}
// Retrieve the "workspace", if any.
XmlNode workspace = root["workspace"];
if (workspace != null)
{
XmlAttributeCollection workspaceAttributes = workspace.Attributes;
if (workspaceAttributes != null && workspaceAttributes.Count > 0)
{
m_strTestWorkspace = workspaceAttributes["dir"].InnerText;
}
}
// Retrieve the "tolerance" attribute, if any.
XmlNode tolerance = root["tolerance"];
double dTolerance = 0.0;
if (tolerance != null)
{
string strTolerance = tolerance.InnerText;
try
{
dTolerance = Double.Parse(strTolerance, GetNumberFormatInfo());
}
catch (Exception ex)
{
XmlTestExceptionManager.Publish(ex);
}
}
// Retrieve the precisionName" tag, if any.
PrecisionModel pm = null;
XmlNode precision = root["precisionModel"];
if (precision != null)
{
XmlAttributeCollection precisionAttributes = precision.Attributes;
if (precisionAttributes != null && precisionAttributes.Count > 0)
{
XmlAttribute attribute = precisionAttributes["type"];
if (attribute != null)
{
string strPrecision = attribute.InnerText;
if (strPrecision == "FIXED" && precisionAttributes.Count == 4)
{
try
{
double scale =
Double.Parse(precisionAttributes["scale"].InnerText, GetNumberFormatInfo());
double offsetx =
Double.Parse(precisionAttributes["offsetx"].InnerText, GetNumberFormatInfo());
double offsety =
Double.Parse(precisionAttributes["offsety"].InnerText, GetNumberFormatInfo());
pm = new PrecisionModel(scale);
}
catch (Exception ex)
{
XmlTestExceptionManager.Publish(ex);
}
}
else
{
pm = new PrecisionModel();
}
}
else
{
if (precisionAttributes.Count == 3)
{
double scale =
Double.Parse(precisionAttributes["scale"].InnerText, GetNumberFormatInfo());
double offsetx =
Double.Parse(precisionAttributes["offsetx"].InnerText, GetNumberFormatInfo());
double offsety =
Double.Parse(precisionAttributes["offsety"].InnerText, GetNumberFormatInfo());
pm = new PrecisionModel(scale);
}
}
}
}
if (pm == null)
{
pm = new PrecisionModel();
}
IGeometryOperation geometryOperation = null;
XmlNode go = root["geometryOperation"];
if (go != null)
{
go = go.FirstChild;
switch (go.Value)
{
case "com.vividsolutions.jtstest.geomop.PreparedGeometryOperation":
geometryOperation = new PreparedGeometryOperation();
break;
case "com.vividsolutions.jtstest.geomop.BufferValidatedGeometryOperation":
geometryOperation = new BufferValidatedGeometryOperation();
break;
case "com.vividsolutions.jtstest.geomop.OverlayValidatedGeometryOperation":
geometryOperation = new OverlayValidatedGeometryOperation();
break;
default:
Console.WriteLine(string.Format("\n *** {0} *** \n", go.Value));
Console.ReadKey(true);
geometryOperation = new GeometryMethodOperation();
break;
}
}
IResultMatcher resultMatcher = null;
XmlNode rm = root["resultMatcher"];
if (rm != null)
{
rm = rm.FirstChild;
if (rm.Value.EndsWith("BufferResultMatcher", StringComparison.InvariantCultureIgnoreCase))
resultMatcher = new BufferResultMatcher();
else
{
throw new NotSupportedException();
}
}
m_objFactory = new XmlTestFactory(pm, geometryOperation, resultMatcher);
m_listCurTests = new XmlTestCollection();
m_listCurTests.Name = strTestDescription;
// Now, handle the "case" nodes
XmlNodeList elemList = xmldoc.GetElementsByTagName("case");
for (int i = 0; i < elemList.Count; i++)
{
ParseCaseNode(elemList[i], dTolerance);
}
m_listarrTests.Add(m_listCurTests);
return true;
}
catch (Exception ex)
{
XmlTestExceptionManager.Publish(ex);
return false;
}
}
public ConvexHullTest()
{
IPrecisionModel precisionModel = new PrecisionModel(1000);
_geometryFactory = new GeometryFactory(precisionModel, 0);
_reader = new WKTReader(_geometryFactory);
}
public void TestReadLargeNumbers()
{
var precisionModel = new PrecisionModel(1E9);
var geometryFactory = new GeometryFactory(precisionModel, 0);
var reader = new WKTReader(geometryFactory);
var point1 = reader.Read("POINT (123456789.01234567890 10)");
var point2 = geometryFactory.CreatePoint(new Coordinate(123456789.01234567890, 10));
Assert.AreEqual(point1.Coordinate.X, point2.Coordinate.X, 1E-7);
Assert.AreEqual(point1.Coordinate.Y, point2.Coordinate.Y, 1E-7);
}
/// <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);
}
private static void DoPerformancesTest(int times)
{
const double d = 123456789;
Stopwatch w = Stopwatch.StartNew();
for (int i = 0; i < times; i++)
{
string s = DoubleConverter.ToExactString(d + i);
Assert.IsNotNull(s);
}
w.Stop();
TimeSpan usingDc = w.Elapsed;
IPrecisionModel precisionModel = new PrecisionModel(1E9);
NumberFormatInfo formatter = CreateFormatter(precisionModel);
string format = "0." + StringOfChar('#', formatter.NumberDecimalDigits);
w = Stopwatch.StartNew();
for (int i = 0; i < times; i++)
{
string s = d.ToString(format, formatter);
Assert.IsNotNull(s);
}
w.Stop();
TimeSpan usingDef = w.Elapsed;
if (usingDc <= usingDef)
return;
TimeSpan diff = usingDc - usingDef;
Console.WriteLine("slower for {0}: {1} seconds", times, diff.TotalSeconds);
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleSnapRounder"/> class.
/// </summary>
/// <param name="pm">The <see cref="PrecisionModel" /> to use.</param>
public SimpleSnapRounder(PrecisionModel pm)
{
_li = new RobustLineIntersector { PrecisionModel = pm };
_scaleFactor = pm.Scale;
}
public OgcCompliantGeometryFactory(PrecisionModel pm, int srid)
: base(pm, srid)
{
}
/// <summary>
///
/// </summary>
/// <param name="pm"></param>
public SimpleGeometryPrecisionReducer(PrecisionModel pm)
{
_newPrecisionModel = pm;
}
public OgcCompliantGeometryFactory(PrecisionModel pm, int srid, CoordinateSequenceFactory factory)
: base(pm, srid, factory)
{
}
private void BufferReducedPrecision(int precisionDigits)
{
double sizeBasedScaleFactor = PrecisionScaleFactor(_argGeom, _distance, precisionDigits);
// System.out.println("recomputing with precision scale factor = " + sizeBasedScaleFactor);
var fixedPrecModel = new PrecisionModel(sizeBasedScaleFactor);
BufferFixedPrecision(fixedPrecModel);
}
/// <summary>
/// Runs a ScaledNoder on input.
/// Input vertices should be rounded to precision model.
/// </summary>
/// <param name="geom"></param>
/// <param name="scaleFactor"></param>
/// <returns>The noded geometry</returns>
public static IGeometry ScaledNoding(IGeometry geom, double scaleFactor)
{
var segs = CreateSegmentStrings(geom);
var fixedPM = new PrecisionModel(scaleFactor);
var noder = new ScaledNoder(new MCIndexSnapRounder(new PrecisionModel(1.0)),
fixedPM.Scale);
noder.ComputeNodes(segs);
var nodedSegStrings = noder.GetNodedSubstrings();
return SegmentStringUtil.ToGeometry(nodedSegStrings, geom.Factory);
}
/// <summary>
/// Constructs a GeometryFactory that generates Geometries having the given
/// PrecisionModel, spatial-reference ID, and CoordinateSequence implementation.
/// </summary>
public GeometryFactory(PrecisionModel precisionModel, int srid, CoordinateSequenceFactory coordinateSequenceFactory)
{
_precisionModel = precisionModel;
_coordinateSequenceFactory = coordinateSequenceFactory;
_srid = srid;
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
/// <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"/>
public NtsProvider(IFeatureProvider provider,
NetTopologySuite.Geometries.PrecisionModel precisionModel) : this(precisionModel)
{
BuildFromProvider(provider);
}
/// <summary>
/// Copy constructor to create a new <c>PrecisionModel</c>
/// from an existing one.
/// </summary>
/// <param name="pm"></param>
public PrecisionModel(PrecisionModel pm)
{
_modelType = pm._modelType;
_scale = pm._scale;
}
/// Creates an instance of this class using the default
/// values for <see cref="GeometryFactory.SRID"/>,
/// <see cref="GeometryFactory.CoordinateSequenceFactory"/> but the
/// specified <paramref name="pm"/>.
public OgcCompliantGeometryFactory(PrecisionModel pm)
: base(pm)
{
}
void RunRounding(string[] wkt)
{
var geoms = FromWKT(wkt);
PrecisionModel pm = new PrecisionModel(SnapTolerance);
GeometryNoder noder = new GeometryNoder(pm);
noder.IsValidityChecked = true;
var nodedLines = noder.Node(geoms);
foreach ( var ls in nodedLines)
Console.WriteLine(ls);
Assert.IsTrue(IsSnapped(nodedLines, SnapTolerance));
}
public DistanceTest()
{
_precisionModel = new PrecisionModel(1);
_geometryFactory = new GeometryFactory(_precisionModel, 0);
_reader = new WKTReader(_geometryFactory);
}