public void TestClassifyRingsWithOuterAndInnerRing()
{
// arrange
var coords = new List <List <Coordinate> >();
var poly1 = TestData.GetCCWPolygon(2);
var poly2 = TestData.GetCWPolygon(1);
coords.Add(poly1);
coords.Add(poly2);
// act
var classify = ClassifyRings.Classify(coords);
// assert
Assert.IsTrue(classify.Count == 1);
Assert.IsTrue(classify[0].Count == 2);
}
public void TestClassifyRingsWithTwoOuterrings()
{
// arrange
var coords = new List <VectorTileGeometry>();
var poly1 = TestData.GetCCWPolygon(2);
var poly2 = TestData.GetCCWPolygon(1);
coords.Add(poly1);
coords.Add(poly2);
// act
var classify = ClassifyRings.Classify(coords);
// assert
Assert.IsTrue(classify.Count == 2);
Assert.IsTrue(classify[0].Count == 1);
Assert.IsTrue(classify[1].Count == 1);
}
public static Feature ToGeoJSON(this VectorTiles.VectorTileFeature vectortileFeature, int x, int y, int z)
{
IGeometryObject geom = null;
switch (vectortileFeature.GeometryType)
{
case GeometryType.Point:
var projectedPoints = ProjectPoints(vectortileFeature.Geometry, x, y, z, vectortileFeature.Extent);
geom = GetPointGeometry(projectedPoints);
break;
case GeometryType.LineString:
var projectedLines = ProjectLines(vectortileFeature.Geometry, x, y, z, vectortileFeature.Extent);
geom = GetLineGeometry(projectedLines);
break;
case GeometryType.Polygon:
// todo: Call method ClassifyRings.Classify first...
// and process the classified rings...
var rings = ClassifyRings.Classify(vectortileFeature.Geometry);
var projectedPolygons = ProjectPolygons(rings, x, y, z, vectortileFeature.Extent);
// var projectedPolygons = ProjectLines(vectortileFeature.Geometry, x, y, z, vectortileFeature.Extent);
geom = GetPolygonGeometry(projectedPolygons);
break;
}
var result = new Feature(geom);
// add attributes
foreach (var item in vectortileFeature.Tags)
{
result.Properties.Add(item.Key, item.Value);
}
result.Id = vectortileFeature.Id;
return(result);
}