public void CanCreateBagWithCopies()
{
ISpatialReference sref =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IGeometry pt1 = GeometryFactory.CreatePoint(100, 200, 0);
IGeometry pt2 = GeometryFactory.CreatePoint(100, 200, 0);
pt1.SpatialReference = sref;
IGeometryBag bag = GeometryFactory.CreateBag(pt1, pt2);
var collection = (IGeometryCollection)bag;
Assert.AreEqual(2, collection.GeometryCount);
IGeometry bagPt1 = collection.get_Geometry(0);
IGeometry bagPt2 = collection.get_Geometry(1);
// expect copies in the bag
Assert.AreNotEqual(pt1, bagPt1);
Assert.AreNotEqual(pt2, bagPt2);
Assert.IsTrue(
SpatialReferenceUtils.AreEqual(sref, bag.SpatialReference, true, true));
Assert.IsTrue(
SpatialReferenceUtils.AreEqual(sref, bagPt1.SpatialReference, true,
true));
Assert.IsTrue(
SpatialReferenceUtils.AreEqual(sref, bagPt2.SpatialReference, true,
true));
}
public void CantCreateBagWithOriginalsIfSpatialReferenceDifferent()
{
ISpatialReference sref =
SpatialReferenceUtils.CreateSpatialReference(WellKnownHorizontalCS.LV95);
IGeometry pt1 = GeometryFactory.CreatePoint(100, 200, 0);
IGeometry pt2 = GeometryFactory.CreatePoint(100, 200, 0);
pt1.SpatialReference = sref;
var list = new List <IGeometry> {
pt1, pt2
};
Assert.Throws <ArgumentException>(
() => GeometryFactory.CreateBag(list, CloneGeometry.Never));
}
private static IPolygon UnionPolygons([NotNull] IEnumerable <IGeometry> polygons,
[CanBeNull] ISpatialReference spatialReference)
{
const bool allowProjectingInput = true;
IGeometryBag bag = GeometryFactory.CreateBag(polygons,
CloneGeometry.IfChangeNeeded,
spatialReference,
allowProjectingInput);
var result = new PolygonClass
{
SpatialReference = spatialReference
};
result.ConstructUnion((IEnumGeometry)bag);
return(result);
}
