public void FromGeometryMultiPolygonReturnsExpectedResult()
{
_fixture.CustomizeGeometryMultiPolygon();
var input = _fixture.Create <NetTopologySuite.Geometries.MultiPolygon>();
var result = GeometryTranslator.FromGeometryMultiPolygon(input);
Assert.Equal(
new BoundingBox2D(
input.EnvelopeInternal.MinX,
input.EnvelopeInternal.MinY,
input.EnvelopeInternal.MaxX,
input.EnvelopeInternal.MaxY
), result.BoundingBox);
Assert.Equal(input.Geometries.Cast <NetTopologySuite.Geometries.Polygon>().Sum(polygon => polygon.Holes.Length + 1),
result.NumberOfParts);
Assert.Equal(input.Geometries.Cast <NetTopologySuite.Geometries.Polygon>().Sum(polygon => polygon.Shell.NumPoints + polygon.Holes.Sum(hole => hole.NumPoints)),
result.NumberOfPoints);
var linearRings = input.Geometries.Cast <NetTopologySuite.Geometries.Polygon>().SelectMany(polygon => new [] { polygon.Shell }.Concat(polygon.Holes));
var offset = 0;
Assert.Equal(
linearRings.Select(ring =>
{
var part = offset;
offset += ring.NumPoints;
return(part);
}).ToArray(),
result.Parts);
Assert.Equal(
linearRings.SelectMany(ring => Enumerable.Range(0, ring.NumPoints).Select(index => new Point(ring.GetPointN(index).X, ring.GetPointN(index).Y))).ToArray(),
result.Points);
}
public void FromGeometryMultiPolygonCanNotBeNull()
{
Assert.Throws <ArgumentNullException>(
() => GeometryTranslator.FromGeometryMultiPolygon(null));
}