public void GetExtentsTest()
{
ShapeFileProvider shapeFile = new ShapeFileProvider(BcRoadsShapeFile, _geoFactory);
IExtents expected = _geoFactory.CreateExtents2D(
7332083.2127965018, 236823.71867240831,
7538428.618, 405610.34692560317);
IExtents actual = shapeFile.GetExtents();
Assert.AreEqual(expected, actual);
}
public IEnumerable <IGeometry <BufferedCoordinate> > CreateTestGeometries(int count, double minx, double miny, double maxx, double maxy)
{
double xrange = Math.Abs(maxx - minx);
double yrange = Math.Abs(maxy - miny);
for (int i = 0; i < count; i++)
{
double x1 = _rnd.NextDouble() * xrange + minx;
double x2 = _rnd.NextDouble() * xrange + minx;
double y1 = _rnd.NextDouble() * yrange + miny;
double y2 = _rnd.NextDouble() * yrange + miny;
yield return((IGeometry <BufferedCoordinate>)_geometryFactory.CreateExtents2D(Math.Min(x1, x2), Math.Min(y1, y2), Math.Max(x1, x2),
Math.Max(y1, y2)).ToGeometry());
}
}
public static IExtents2D ParseExtents(IGeometryFactory geomFactory, string extents)
{
string[] strVals = extents.Split(new[] {','});
if (strVals.Length != 4)
return null;
double minx = 0;
double miny = 0;
double maxx = 0;
double maxy = 0;
if (!double.TryParse(strVals[0], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out minx))
return null;
if (!double.TryParse(strVals[2], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out maxx))
return null;
if (maxx < minx)
return null;
if (!double.TryParse(strVals[1], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out miny))
return null;
if (!double.TryParse(strVals[3], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out maxy))
return null;
if (maxy < miny)
return null;
return geomFactory.CreateExtents2D(minx, miny, maxx, maxy);
}
public void LayerCachingTest()
{
IGeometryFactory geoFactory = _factories.GeoFactory;
GeometryLayer layer1 = DataSourceHelper.CreateFeatureFeatureLayer(geoFactory);
GeometryLayer layer2 = DataSourceHelper.CreateFeatureFeatureLayer(geoFactory);
IExtents box1 = geoFactory.CreateExtents2D(0, 0, 10, 10);
IExtents box2 = geoFactory.CreateExtents2D(35, 25, 45, 35);
layer1.AsyncQuery = false;
// Do query
layer2.AsyncQuery = false;
// Do query
Assert.True(layer1.Features.Extents.Contains(box2), "Test validity check");
// features intersecting box1 must have extents that contain box2
// Do query
}
public void T03_SomeSelects()
{
PostGisProvider <Int64> prov = new PostGisProvider <Int64>(
_geometryFactory, connectionString, "TestFeatureDataTable");
GeometryLayer gl = new GeometryLayer("test", prov);
gl.Select(new AllAttributesExpression());
gl.Features.AcceptChanges();
Assert.AreEqual(4, gl.Features.FeatureCount);
Assert.AreEqual(_geometryFactory.CreateExtents2D(0, -3, 15, 20), gl.Features.Extents);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new ExtentsExpression(prov.GeometryFactory.CreateExtents2D(-1, -1, 1, 1)),
SpatialOperation.Contains,
new ThisExpression())
);
Assert.AreEqual(1, gl.Features.Rows.Count);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new GeometryExpression(prov.GeometryFactory.WktReader.Read(("POLYGON((-1 -1, 0 1, 1 -1, -1 -1))"))),
SpatialOperation.Contains,
new ThisExpression())
);
//SELECT testfeaturedatatable.poid,testfeaturedatatable.label,ST_AsBinary(xgeometryx)::bytea AS xgeometryx FROM public.testfeaturedatatable WHERE ( ST_Contains( ST_GeomFromWKB(:iparam0, -1), xgeometryx ))
//SELECT testfeaturedatatable.poid,testfeaturedatatable.label,ST_AsBinary(xgeometryx)::bytea AS xgeometryx FROM public.testfeaturedatatable WHERE ( ST_Contains( ST_GeomFromText('POLYGON((-1 -1, 0 1, 1 -1, -1 -1))', -1), xgeometryx ))
Assert.AreEqual(1, gl.Features.Rows.Count);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new GeometryExpression(
prov.GeometryFactory.WktReader.Read(("POLYGON((-1 -1, -1 1, 0 1, 0 -1, -1 -1))"))),
SpatialOperation.Touches,
new ThisExpression())
);
Assert.AreEqual(1, gl.Features.Rows.Count);
//gl = new GeometryLayer(prov);
//gl.Select(
// new SpatialBinaryExpression(
// new ThisExpression(),
// SpatialOperation.Within,
// new GeometryExpression(prov.GeometryFactory.WktReader.Read("POLYGON((-1 -1, 0 1, 1 -1, -1 -1))")))
// );
//Assert.AreEqual(0, gl.Features.Rows.TotalItemCount);
}
public void T03_MultipleSelects()
{
SpatiaLite2Provider prov = new SpatiaLite2Provider(
_geometryFactory, @"Data Source=test.sqlite", "TestFeatureDataTable");
GeometryLayer gl = new GeometryLayer("test", prov);
gl.Select(new AllAttributesExpression());
gl.Features.AcceptChanges();
Assert.AreEqual(4, gl.Features.FeatureCount);
Assert.AreEqual(_geometryFactory.CreateExtents2D(0, -3, 15, 20), gl.Features.Extents);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new ExtentsExpression(prov.GeometryFactory.CreateExtents2D(-1, -1, 1, 1)),
SpatialOperation.Contains,
new ThisExpression())
);
Assert.AreEqual(1, gl.Features.Rows.Count);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new GeometryExpression(prov.GeometryFactory.WktReader.Read(("POLYGON((-1 -1, 0 1, 1 1, -1 -1))"))),
SpatialOperation.Contains,
new ThisExpression())
);
Assert.AreEqual(1, gl.Features.Rows.Count);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new GeometryExpression(prov.GeometryFactory.WktReader.Read(("POLYGON((-1 -1, -1 1, 0 1, 0 -1, -1 -1))"))),
SpatialOperation.Touches,
new ThisExpression())
);
Assert.AreEqual(1, gl.Features.Rows.Count, 1);
gl = new GeometryLayer(prov);
gl.Select(
new SpatialBinaryExpression(
new ThisExpression(),
SpatialOperation.Within,
new GeometryExpression(prov.GeometryFactory.WktReader.Read(("POLYGON((-1 -1, 0 1, 1 1, -1 -1))"))))
);
Assert.AreEqual(0, gl.Features.Rows.Count);
}
public static IExtents2D ParseExtents(IGeometryFactory geomFactory, string extents)
{
string[] strVals = extents.Split(new[] { ',' });
if (strVals.Length != 4)
{
return(null);
}
double minx = 0;
double miny = 0;
double maxx = 0;
double maxy = 0;
if (!double.TryParse(strVals[0], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out minx))
{
return(null);
}
if (!double.TryParse(strVals[2], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out maxx))
{
return(null);
}
if (maxx < minx)
{
return(null);
}
if (!double.TryParse(strVals[1], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out miny))
{
return(null);
}
if (!double.TryParse(strVals[3], NumberStyles.Float, NumberFormatInfo.InvariantInfo, out maxy))
{
return(null);
}
if (maxy < miny)
{
return(null);
}
return(geomFactory.CreateExtents2D(minx, miny, maxx, maxy));
}
public void MultiLinestring()
{
IMultiLineString mls = _geoFactory.CreateMultiLineString();
Assert.IsTrue(mls.IsEmpty);
mls.Add(_geoFactory.CreateLineString());
Assert.IsTrue(mls.IsEmpty);
mls[0].Coordinates.Add(_geoFactory.CreatePoint2D(45, 68));
mls[0].Coordinates.Add(_geoFactory.CreatePoint2D(82, 44));
mls.Add(createLineString());
foreach (ILineString ls in (IEnumerable <ILineString>)mls)
{
Assert.IsFalse(ls.IsEmpty);
}
Assert.IsFalse(mls.IsEmpty);
foreach (ILineString ls in (IEnumerable <ILineString>)mls)
{
Assert.IsFalse(ls.IsClosed);
}
Assert.IsFalse(mls.IsClosed);
//Close linestrings
foreach (ILineString ls in (IEnumerable <ILineString>)mls)
{
ls.Coordinates.Add((ls.StartPoint.Clone() as IPoint).Coordinate);
}
foreach (ILineString ls in (IEnumerable <ILineString>)mls)
{
Assert.IsTrue(ls.IsClosed);
}
Assert.IsTrue(mls.IsClosed);
Assert.AreEqual(_geoFactory.CreateExtents2D(1, 2, 930, 123), mls.Extents);
}
