public void TestSTRotate()
{
var expected = new double[][]
{
new[] { -50.0, -160.0 },
new[] { -50.0, -50.0 },
new[] { -100.0, -50.0 }
};
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "LINESTRING (50 160, 50 50, 100 50)";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt))
.Insert();
var result = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STRotate(Math.PI))
.Single() as NTSGS.LineString;
CheckLineEquals(expected, result, 1.0E-8);
var result2 = db
.Select(() => AffineTransformations.STRotate(Wkt, Math.PI)) as NTSGS.LineString;
CheckLineEquals(expected, result2, 1.0E-8);
}
}
public void TestSTRotateOriginGeom()
{
var expected = new double[][]
{
new[] { 116.42245883568916, 130.67207346706593 },
new[] { 21.15966441940092, 75.67207346706593 },
new[] { 46.15966441940093, 32.370803277844 }
};
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "LINESTRING (50 160, 50 50, 100 50)";
db.TestGeometries
.Value(g => g.Id, 1)
.Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt))
.Insert();
var result = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STRotate(-1.0 * Math.PI / 3.0, g.Geometry.STCentroid()))
.Single() as NTSGS.LineString;
CheckLineEquals(expected, result, 1.0E-8);
var origin = db.TestGeometries
.Where(g => g.Id == 1)
.Select(g => g.Geometry.STCentroid())
.Single() as NTSGS.Point;
var result2 = db
.Select(() => AffineTransformations.STRotate(Wkt, -1.0 * Math.PI / 3.0, origin)) as NTSGS.LineString;
CheckLineEquals(expected, result2, 1.0E-8);
}
}
