public void CanReadWriteMultipointXyz()
{
var points = new WKSPointZ[4];
points[0] = new WKSPointZ {
X = 2600000, Y = 1200000, Z = 456
};
points[1] = new WKSPointZ {
X = 2600030, Y = 1200020, Z = 457
};
points[2] = new WKSPointZ {
X = 2600020, Y = 1200030, Z = 459
};
points[3] = new WKSPointZ {
X = 2600010, Y = 1200010, Z = 416
};
ISpatialReference sr =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IMultipoint multipoint = GeometryFactory.CreateMultipoint(points, sr);
WkbGeometryWriter writer = new WkbGeometryWriter();
byte[] wkb = writer.WriteMultipoint(multipoint);
// Wkx
byte[] wkx = ToChristianSchwarzWkb(ToWkxMultipoint(points, Ordinates.Xyz));
Assert.AreEqual(wkx, wkb);
// Bonus test: Geom
WkbGeomWriter geomWriter = new WkbGeomWriter();
Multipoint <IPnt> multipnt = GeometryConversionUtils.CreateMultipoint(multipoint);
byte[] wkbGeom = geomWriter.WriteMultipoint(multipnt, Ordinates.Xyz);
Assert.AreEqual(wkb, wkbGeom);
WkbGeometryReader reader = new WkbGeometryReader();
IMultipoint restored = reader.ReadMultipoint(new MemoryStream(wkb));
Assert.IsTrue(GeometryUtils.AreEqual(multipoint, restored));
// Geom
WkbGeomReader geomReader = new WkbGeomReader();
Multipoint <IPnt> deserializedPnts =
geomReader.ReadMultiPoint(new MemoryStream(wkbGeom));
Assert.IsTrue(multipnt.Equals(deserializedPnts));
}
public static double?Distance(this Multipoint multipoint1, Multipoint multipoint2)
{
if (Null(multipoint1, multipoint1.points, multipoint2, multipoint2.points))
{
return(null);
}
if (multipoint1.Equals(multipoint2))
{
return(0);
}
return(multipoint1.points !.SelectMany(p1 => multipoint2.points !.Select(p2 => Length(p1, p2))).Min());
}
public void CanWriteMultiPoint()
{
Pnt3D point1 = new Pnt3D(2600001.123, 1200000.987, 432.1);
Pnt3D point2 = new Pnt3D(2600002.234, 1200002.876, 321.98);
var multipoint = new Multipoint <IPnt>(new[]
{
point1,
point2
});
WkbGeomWriter writer = new WkbGeomWriter();
byte[] bytes = writer.WriteMultipoint(multipoint);
WkbGeomReader reader = new WkbGeomReader();
Multipoint <IPnt> deserizalized = reader.ReadMultiPoint(new MemoryStream(bytes));
Assert.AreEqual(multipoint.PointCount, deserizalized.PointCount);
Assert.IsTrue(deserizalized.Equals(multipoint));
}
