public void TestSTEnvelope()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "LINESTRING(0 0, 1 3)";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
var envelope = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STEnvelope().STAsText())
.Single();
Assert.AreEqual("POLYGON((0 0,0 3,1 3,1 0,0 0))", envelope);
// TODO: need explicit cast text to geometry
if (this.CurrentVersion >= new Version("3.0.0"))
{
Assert.AreEqual(
"POLYGON((0 0,0 3,1 3,1 0,0 0))",
db.Select(() => GeometryAccessors.STEnvelope(Wkt).STAsText()));
Assert.IsNull(db.Select(() => GeometryAccessors.STEnvelope((NTSG)null)));
}
}
}
public void TestSTDimension()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string wkt1 = "GEOMETRYCOLLECTION(LINESTRING(1 1,0 0),POINT(0 0))";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(wkt1))
.Insert();
const string wkt2 = "POINT(0 0)";
db.TestGeometries
.Value(g => g.Id, 2)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(wkt2))
.Insert();
var dimension1 = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STDimension())
.Single();
Assert.AreEqual(1, dimension1);
var dimension2 = db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STDimension())
.Single();
Assert.AreEqual(0, dimension2);
Assert.IsNull(db.Select(() => GeometryAccessors.STDimension((NTSG)null)));
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STDimension("GEOMETRYCOLLECTION(LINESTRING(1 1,0 0),POINT(0 0))")));
}
}
public void TestSTIsEmpty()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "GEOMETRYCOLLECTION EMPTY";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "POLYGON((1 2, 3 4, 5 6, 1 2))";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => null).Insert();
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STIsEmpty()).Single());
Assert.IsFalse(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STIsEmpty()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STIsEmpty()).Single());
// TODO: Need some research for reason of error:
// function st_isempty(unknown) is not unique. Could not choose a best candidate function. You might need to add explicit type casts.
var version = new Version(db.Select(() => VersionFunctions.PostGISLibVersion()));
if (version > new Version("3.0.0"))
{
Assert.IsNull(db.Select(() => GeometryAccessors.STIsEmpty((NTSG)null)));
Assert.IsTrue(db.Select(() => GeometryAccessors.STIsEmpty("CIRCULARSTRING EMPTY")));
Assert.IsFalse(db.Select(() => GeometryAccessors.STIsEmpty("POINT(0 0)")));
}
}
}
public void TestSTZmflag()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(1 2, 3 4)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt1)).Insert();
const string Wkt2 = "LINESTRINGM(1 2 3, 3 4 3)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt2)).Insert();
const string Wkt3 = "CIRCULARSTRING(1 2 3, 3 4 3, 5 6 3)";
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt3)).Insert();
const string Wkt4 = "POINT(1 2 3 4)";
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt4)).Insert();
db.TestGeometries.Value(g => g.Id, 5).Value(g => g.Geometry, () => null).Insert();
Assert.AreEqual(0, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(1, db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(2, db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(3, db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STZmflag()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(0, db.Select(() => GeometryAccessors.STZmflag(Wkt1)));
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STZmflag(Wkt2)));
Assert.AreEqual(2, db.Select(() => GeometryAccessors.STZmflag(Wkt3)));
Assert.AreEqual(3, db.Select(() => GeometryAccessors.STZmflag(Wkt4)));
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STZmflag()).Single());
}
}
public void TestSTNRings()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "POLYGON((1 2, 3 4, 5 6, 1 2))";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
db.TestGeometries
.Value(g => g.Id, 2)
.Value(g => g.Geometry, () => null)
.Insert();
Assert.AreEqual(1, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNRings()).Single());
Assert.AreEqual(0, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNumInteriorRings()).Single());
Assert.AreEqual(0, db.Select(() => GeometryAccessors.STNumInteriorRings(Wkt)));
// STNumInteriorRing is synonym to STNumInteriorRings. See http://postgis.net/docs/manual-1.5/ST_NumInteriorRing.html
Assert.AreEqual(0, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNumInteriorRing()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STNRings()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STNRings((NTSG)null)));
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STNRings(Wkt)));
Assert.AreEqual(0, db.Select(() => GeometryAccessors.STNumInteriorRing(Wkt)));
}
}
public void TestSTIsClosed()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(0 0, 1 1)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "LINESTRING(0 0, 0 1, 1 1, 0 0)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => null).Insert();
Assert.IsFalse(db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STIsClosed())
.Single());
Assert.IsTrue(db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STIsClosed())
.Single());
Assert.IsFalse(db.Select(() => GeometryAccessors.STIsClosed(Wkt1)));
Assert.IsTrue(db.Select(() => GeometryAccessors.STIsClosed(Wkt2)));
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 3)
.Select(g => g.Geometry.STIsClosed())
.Single());
}
}
public void TestSTStartPoint()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(0 1, 0 2)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "POINT(0 1)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
Assert.AreEqual(
"POINT(0 1)",
db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STStartPoint().STAsText())
.Single());
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STStartPoint())
.Single());
Assert.AreEqual("POINT(0 1)", db.Select(() => GeometryAccessors.STStartPoint(Wkt1).STAsText()));
Assert.IsNull(db.Select(() => GeometryAccessors.STStartPoint(Wkt2)));
Assert.IsNull(db.Select(() => GeometryAccessors.STStartPoint((NTSG)null)));
}
}
public void TestSTHasArc()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () =>
GeometryConstructors.STCollect(
GeometryInput.STGeomFromText("LINESTRING(1 2, 3 4, 5 6)"),
GeometryInput.STGeomFromText("CIRCULARSTRING(1 1, 2 3, 4 5, 6 7, 5 6)")))
.Insert();
db.TestGeometries
.Value(g => g.Id, 2)
.Value(g => g.Geometry, () => null)
.Insert();
Assert.IsTrue(db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STHasArc())
.Single());
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STHasArc())
.Single());
Assert.IsTrue(db.Select(() => GeometryAccessors.STHasArc("CIRCULARSTRING(1 1, 2 3, 4 5, 6 7, 5 6)")));
}
}
public void TestSTIsPolygonCW()
{
const string Wkt = "POLYGON((0 0 1,0 5 1,5 0 1,0 0 1),(1 1 1,3 1 1,1 3 1,1 1 1))";
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
var result1 = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STIsPolygonCW())
.Single();
Assert.IsTrue(result1.HasValue);
Assert.IsTrue(result1);
var result2 = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => GeometryAccessors.STIsPolygonCW(g.Geometry.STAsText()))
.Single();
Assert.IsTrue(result2.HasValue);
Assert.IsTrue(result2);
Assert.IsNull(db.Select(() => GeometryAccessors.STIsPolygonCW((NTSG)null)));
}
}
public void TestSTGeometryN()
{
const string Ewkt =
@"TIN (((
0 0 0,
0 0 1,
0 1 0,
0 0 0
)), ((
0 0 0,
0 1 0,
1 1 0,
0 0 0
)))";
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
Assert.AreEqual(
"TRIANGLE((0 0 0,0 1 0,1 1 0,0 0 0))",
db.Select(() => GeometryInput.STGeomFromEWKT(Ewkt)
.STGeometryN(2)
.STAsEWKT()));
Assert.AreEqual(
"TRIANGLE((0 0 0,0 1 0,1 1 0,0 0 0))",
db.Select(() => GeometryAccessors.STGeometryN(Ewkt, 2)
.STAsEWKT()));
Assert.IsNull(db.Select(() => GeometryAccessors.STGeometryN((NTSG)null, 1)));
}
}
public void TestSTNPoints()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "POINT(77.29 29.07)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "LINESTRING(77.29 29.07 1,77.42 29.26 0,77.27 29.31 -1,77.29 29.07 3)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
const string Wkt3 = "LINESTRING EMPTY";
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt3)).Insert();
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => null).Insert();
var nPoints1 = db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNPoints()).Single();
Assert.AreEqual(1, nPoints1);
var nPoints2 = db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STNPoints()).Single();
Assert.AreEqual(4, nPoints2);
var nPoints3 = db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STNPoints()).Single();
Assert.AreEqual(0, nPoints3);
var nPoints4 = db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STNPoints()).Single();
Assert.IsNull(nPoints4);
Assert.IsNull(db.Select(() => GeometryAccessors.STNPoints((NTSG)null)));
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STNPoints(Wkt1)));
Assert.AreEqual(4, db.Select(() => GeometryAccessors.STNPoints(Wkt2)));
Assert.AreEqual(0, db.Select(() => GeometryAccessors.STNPoints(Wkt3)));
}
}
public void TestSTMemSize()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText("POINT(0 0)"))
.Insert();
db.TestGeometries
.Value(g => g.Id, 2)
.Value(g => g.Geometry, () => null)
.Insert();
Assert.AreEqual(32, db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STMemSize())
.Single());
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STMemSize())
.Single());
// TODO: need explicit cast text to geometry
if (this.CurrentVersion >= new Version("3.0.0"))
{
Assert.AreEqual(32, db.Select(() => GeometryAccessors.STMemSize("POINT(0 0)")));
Assert.IsNull(db.Select(() => GeometryAccessors.STMemSize((NTSG)null)));
}
}
}
public void TestSTInteriorRingN()
{
const string Wkt = "POLYGON((0 0 1,0 5 1,5 0 1,0 0 1),(1 1 1,3 1 1,1 3 1,1 1 1))";
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
var result = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STInteriorRingN(1))
.Single() as NTSGS.LineString;
var result2 = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => GeometryAccessors.STInteriorRingN(g.Geometry.STAsText(), 1))
.Single() as NTSGS.LineString;
var emptyResult = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STInteriorRingN(2))
.Single() as NTSGS.LineString;
Assert.IsNotNull(result);
Assert.IsNull(emptyResult);
Assert.AreEqual(1, result.Coordinates[0].X);
Assert.AreEqual(1, result.Coordinates[0].Y);
Assert.AreEqual(1, result.Coordinates[0].Z);
Assert.AreEqual(3, result.Coordinates[1].X);
Assert.AreEqual(1, result.Coordinates[1].Y);
Assert.AreEqual(1, result.Coordinates[1].Z);
Assert.AreEqual(1, result.Coordinates[2].X);
Assert.AreEqual(3, result.Coordinates[2].Y);
Assert.AreEqual(1, result.Coordinates[2].Z);
Assert.AreEqual(1, result.Coordinates[3].X);
Assert.AreEqual(1, result.Coordinates[3].Y);
Assert.AreEqual(1, result.Coordinates[3].Z);
Assert.IsTrue(result2.CompareTo(result) == 0);
Assert.IsNull(db.Select(() => GeometryAccessors.STInteriorRingN((NTSG)null, 1)));
}
}
public void TestSTPoints()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "POLYGON Z ((30 10 4,10 30 5,40 40 6, 30 10 4))";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
const string ExpectedMultiPoint = "MULTIPOINT Z (30 10 4,10 30 5,40 40 6,30 10 4)";
Assert.AreEqual(ExpectedMultiPoint, db.TestGeometries.Select(g => g.Geometry.STPoints().STAsText()).Single());
Assert.AreEqual(ExpectedMultiPoint, db.Select(() => GeometryAccessors.STPoints(Wkt).STAsText()));
Assert.IsNull(db.Select(() => GeometryAccessors.STPoints((NTSG)null)));
}
}
public void TestSTBoundary()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string wkt1 = "LINESTRING(100 150,50 60, 70 80, 160 170)";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(wkt1))
.Insert();
const string wkt2 = "POLYGON ((10 130, 50 190, 110 190, 140 150, 150 80, 100 10, 20 40, 10 130), (70 40, 100 50, 120 80, 80 110, 50 90, 70 40))";
db.TestGeometries
.Value(g => g.Id, 2)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(wkt2))
.Insert();
const string wkt3 = "MULTILINESTRING((1 1 1,0 0 0.5, -1 1 1),(1 1 0.5,0 0 0.5, -1 1 0.5, 1 1 0.5) )";
db.TestGeometries
.Value(g => g.Id, 3)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(wkt3))
.Insert();
Assert.AreEqual(
"MULTIPOINT(100 150,160 170)",
db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STBoundary().STAsText())
.Single());
Assert.AreEqual(
"MULTILINESTRING((10 130,50 190,110 190,140 150,150 80,100 10,20 40,10 130),(70 40,100 50,120 80,80 110,50 90,70 40))",
db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STBoundary().STAsText())
.Single());
Assert.AreEqual(
"MULTIPOINT Z (-1 1 1,1 1 0.75)",
db.TestGeometries
.Where(g => g.Id == 3)
.Select(g => g.Geometry.STBoundary().STAsText())
.Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STBoundary((NTSG)null)));
Assert.AreEqual("MULTIPOINT(100 150,160 170)", db.Select(() => GeometryAccessors.STBoundary(wkt1).STAsText()));
}
}
public void TestSTNumPoints()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "POINT(77.29 29.07)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
Assert.AreEqual(4, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNumPoints()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STNumPoints()).Single());
Assert.AreEqual(4, db.Select(() => GeometryAccessors.STNumPoints(Wkt1)));
Assert.IsNull(db.Select(() => GeometryAccessors.STNumPoints(Wkt2)));
}
}
public void TestSTNumGeometries()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "GEOMETRYCOLLECTION(MULTIPOINT(-2 3 , -2 2), LINESTRING(5 5, 10 10), POLYGON((-7 4.2, -7.1 5, -7.1 4.3, -7 4.2)))";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
const string Wkt3 = "POINT EMPTY";
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt3)).Insert();
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => null).Insert();
Assert.AreEqual(
1,
db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STNumGeometries())
.Single());
Assert.AreEqual(
3,
db.TestGeometries
.Where(g => g.Id == 2)
.Select(g => g.Geometry.STNumGeometries())
.Single());
Assert.AreEqual(
0,
db.TestGeometries
.Where(g => g.Id == 3)
.Select(g => g.Geometry.STNumGeometries())
.Single());
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 4)
.Select(g => g.Geometry.STNumGeometries())
.Single());
Assert.AreEqual(
3,
db.Select(() => GeometryAccessors.STNumGeometries(Wkt2)));
}
}
public void TestSTGeometryType()
{
const string Wkt = "LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)";
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
Assert.AreEqual(
"ST_LineString",
db.Select(() => GeometryInput.STGeomFromText(Wkt)
.STGeometryType()));
Assert.AreEqual(
"ST_LineString",
db.Select(() => GeometryAccessors.STGeometryType(Wkt)));
Assert.IsNull(db.Select(() => GeometryAccessors.STGeometryType((NTSG)null)));
}
}
public void TestSTXYZM()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "POINT(1 2 3 4)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "POINT(1 2)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
const string Wkt3 = "POINT EMPTY";
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt3)).Insert();
var query1 = db.TestGeometries.Where(g => g.Id == 1);
Assert.AreEqual(1, query1.Select(g => g.Geometry.STX()).Single());
Assert.AreEqual(2, query1.Select(g => g.Geometry.STY()).Single());
Assert.AreEqual(3, query1.Select(g => g.Geometry.STZ()).Single());
Assert.AreEqual(4, query1.Select(g => g.Geometry.STM()).Single());
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STX(Wkt1)));
Assert.AreEqual(2, db.Select(() => GeometryAccessors.STY(Wkt1)));
Assert.AreEqual(3, db.Select(() => GeometryAccessors.STZ(Wkt1)));
Assert.AreEqual(4, db.Select(() => GeometryAccessors.STM(Wkt1)));
var query2 = db.TestGeometries.Where(g => g.Id == 2);
Assert.AreEqual(1, query2.Select(g => g.Geometry.STX()).Single());
Assert.AreEqual(2, query2.Select(g => g.Geometry.STY()).Single());
Assert.IsNull(query2.Select(g => g.Geometry.STZ()).Single());
Assert.IsNull(query2.Select(g => g.Geometry.STM()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STZ(Wkt2)));
Assert.IsNull(db.Select(() => GeometryAccessors.STM(Wkt2)));
var query3 = db.TestGeometries.Where(g => g.Id == 3);
Assert.IsNull(query3.Select(g => g.Geometry.STX()).Single());
Assert.IsNull(query3.Select(g => g.Geometry.STY()).Single());
Assert.IsNull(query2.Select(g => g.Geometry.STZ()).Single());
Assert.IsNull(query2.Select(g => g.Geometry.STM()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STM((NTSG)null)));
Assert.AreEqual(4, db.Select(() => GeometryAccessors.STM(Wkt1)));
Assert.IsNull(db.Select(() => GeometryAccessors.STM(Wkt3)));
}
}
public void TestSTIsSimple()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "POLYGON((1 1, 2 1, 2 2, 1 1))";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt1)).Insert();
const string Wkt2 = "LINESTRING(1 1,2 2,2 3.5,1 3,1 2,2 1)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt2)).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => null).Insert();
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STIsSimple()).Single());
Assert.IsFalse(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STIsSimple()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STIsSimple()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STIsSimple((NTSG)null)));
Assert.IsTrue(db.Select(() => GeometryAccessors.STIsSimple(Wkt1)));
Assert.IsFalse(db.Select(() => GeometryAccessors.STIsSimple(Wkt2)));
}
}
public void TestSTExteriorRing()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
Assert.AreEqual(
"LINESTRING(0 0 1,1 1 1,1 2 1,1 1 1,0 0 1)",
db.Select(() => GeometryInput
.STGeomFromEWKT("POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))")
.STExteriorRing()
.STAsEWKT()));
Assert.AreEqual(
"LINESTRING(0 0 1,1 1 1,1 2 1,1 1 1,0 0 1)",
db.Select(() => GeometryAccessors
.STExteriorRing("POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))")
.STAsEWKT()));
Assert.IsNull(db.Select(() => GeometryAccessors.STExteriorRing((NTSG)null)));
}
}
public void TestSTCoordDim()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "CIRCULARSTRING(1 2 3, 1 3 4, 5 6 7, 8 9 10, 11 12 13)";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromText(Wkt))
.Insert();
Assert.AreEqual(
3,
db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STCoordDim())
.Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STCoordDim((NTSG)null)));
Assert.AreEqual(3, db.Select(() => GeometryAccessors.STCoordDim("CIRCULARSTRING(1 2 3, 1 3 4, 5 6 7, 8 9 10, 11 12 13)")));
}
}
public void TestSTNumPatches()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Ewkt = @"POLYHEDRALSURFACE(
((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)),
((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 0)),
((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)),
((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 1)) )";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Ewkt)).Insert();
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromText("POINT(1 1)")).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => null).Insert();
Assert.AreEqual(6, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNumPatches()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STNumPatches()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STNumPatches()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STNumPatches((NTSG)null)));
Assert.AreEqual(6, db.Select(() => GeometryAccessors.STNumPatches(Ewkt)));
}
}
public void TestSTBoundingDiagonalWithFits()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryConstructors.STMakePoint(0, 0).STBuffer(10))
.Insert();
var bbBoxDiagonal1 = db.TestGeometries
.Select(g => g.Geometry.STBoundingDiagonal(false).STAsText())
.Single();
Assert.AreEqual("LINESTRING(-10 -10,10 10)", bbBoxDiagonal1);
var bbBoxDiagonal2 = db.TestGeometries
.Select(g => GeometryAccessors.STBoundingDiagonal(g.Geometry.STAsText(), false).STAsText())
.Single();
Assert.AreEqual("LINESTRING(-10 -10,10 10)", bbBoxDiagonal2);
Assert.IsNull(db.Select(() => GeometryAccessors.STBoundingDiagonal((NTSG)null, false)));
}
}
public void TestSTIsCollection()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText("LINESTRING(0 0, 1 1)")).Insert();
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT EMPTY")).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT((0 0))")).Insert();
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT((0 0), (42 42))")).Insert();
db.TestGeometries.Value(g => g.Id, 5).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("GEOMETRYCOLLECTION(POINT(0 0))")).Insert();
db.TestGeometries.Value(g => g.Id, 6).Value(g => g.Geometry, () => null).Insert();
Assert.IsFalse(db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 6).Select(g => g.Geometry.STIsCollection()).Single());
Assert.IsNull(db.Select(() => GeometryAccessors.STIsCollection((NTSG)null)));
Assert.IsFalse(db.Select(() => GeometryAccessors.STIsCollection("LINESTRING(0 0, 1 1)")));
Assert.IsTrue(db.Select(() => GeometryAccessors.STIsCollection("MULTIPOINT EMPTY")));
}
}
public void TestSTNDims()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText("POINT(1 1)")).Insert();
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("POINT(1 1 2)")).Insert();
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("POINTM(1 1 0.5)")).Insert();
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("POINTZM(1 2 3 4)")).Insert();
db.TestGeometries.Value(g => g.Id, 5).Value(g => g.Geometry, () => null).Insert();
Assert.AreEqual(2, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STNDims()).Single());
Assert.AreEqual(3, db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STNDims()).Single());
Assert.AreEqual(3, db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STNDims()).Single());
Assert.AreEqual(4, db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STNDims()).Single());
Assert.IsNull(db.TestGeometries
.Where(g => g.Id == 5)
.Select(g => g.Geometry.STNDims())
.Single());
Assert.AreEqual(4, db.Select(() => GeometryAccessors.STNDims("POINTZM(1 2 3 4)")));
}
}