public void TestBoundariesHaveData()
{
Assert.AreEqual(33,_boundaries.Count());
Assert.AreEqual(45, _lands.Count());
var filter = _lands.GroupBy(x => x.LandNo8);
Assert.AreEqual(10, filter.Count());
var merger = new Merger(_boundaries);
}
public void TwoPieces_兩個多邊形合併_沒有相交(string landno, double area)
{
var lands = _lands.Where(x => x.LandNo8 == landno).Select(x => new PolyLand
{
Code = x.Boundary,
Points = x.Points
}).ToList();
var merger = new Merger(_boundaries);
var polygon = merger.TwoPieces(lands.First(), lands.Last());
Assert.NotNull(polygon);
Assert.AreEqual(area, polygon.Area, 0.000001);
var pg1 = new Polygon(lands.First().Points);
Assert.True(polygon.Contains(pg1));
var pg2 = new Polygon(lands.Last().Points);
Assert.True(polygon.Contains(pg2));
}
private void TestThreePieces(string landno, double area)
{
var lands = _lands.Where(x => x.LandNo8 == landno).Select(x => new PolyLand
{
Code = x.Boundary,
Points = x.Points
}).ToList();
var merger = new Merger(_boundaries);
var polygon = merger.ThreePieces(lands);
Assert.NotNull(polygon);
Assert.AreEqual(area, polygon.Area, 0.000001);
//foreach (var land in lands)
//{
// var pg = new Polygon(land.Points);
// Assert.True(polygon.Contains(pg));
//}
}
public void SetupBorders_()
{
var lands = _lands.Where(x => x.LandNo8 == "01310002").Select(x => new PolyLand
{
Code = x.Boundary,
Points = x.Points
}).ToList();
var merger = new Merger(_boundaries);
var polyLand = lands.First();
merger.SetupBorders(polyLand);
Assert.AreEqual(2, polyLand.Borders.Count);
}
public void SetupBorders_當邊界線位於四個角落_應該切為兩段()
{
var polyland = new PolyLand()
{
Code = "03020015",
Points = new List<Coordinate>()
{
new Coordinate(275503.47799410898,2757594.7833203459),
new Coordinate(275466.72964286612,2757591.8214018894),
new Coordinate(275429.94121402991,2757588.9532408221),
new Coordinate(275429.93469449208,2757545.8932697494),
new Coordinate(275500.75199733494,2757545.8642775714),
new Coordinate(275503.22490233264,2757555.2275553606),
new Coordinate(275508.72536459984,2757576.5936708814),
new Coordinate(275508.03962494305,2757584.0420535933),
new Coordinate(275507.41859157098,2757591.4964217525),
new Coordinate(275503.47799410898,2757594.7833203459)
}
};
var merger = new Merger(_boundaries);
merger.SetupBorders(polyland);
Assert.AreEqual(2, polyland.Borders.Count);
}
public void GetConvexHull_由兩條邊界線產生一個多邊形()
{
var coords1 = new List<Coordinate>
{
new Coordinate(1, 1),
new Coordinate(1, 2)
};
var line1 = new LineString(coords1);
var coords2 = new List<Coordinate>
{
new Coordinate(2, 1),
new Coordinate(2, 2)
};
var line2 = new LineString(coords2);
var merger = new Merger(_boundaries);
var result = merger.GetConvexHull(line1, line2);
Assert.NotNull(result);
Assert.AreEqual(1.0, result.Area, 0.00000001);
}