public void TestPolygonCompletelyInTile()
{
var t = new Tile(5, 12, 4);
var p = t.ToPolygon(0);
Assert.Single(PolygonTiler.Tiles(p, 4, 0));
}
public void TestPolygonLargerThanTile()
{
var t = new Tile(5, 12, 4);
var p = t.ToPolygon(1);
var tiles = PolygonTiler.Tiles(p, 4, 0).Select(itm => (Geometry)itm.Item2).ToList();
Assert.Equal(9, tiles.Count);
Assert.True(t.ToPolygon(0).EqualsTopologically(tiles[4]));
Assert.True(System.Math.Abs(p.Area - tiles.Sum(itm => itm.Area)) <= 0.00001);
}
public void TestPolygonWithoutShapePointInTile()
{
var t = new Tile(5, 12, 4);
var p = t.ToPolygon(1);
var at = Geometries.Utilities.AffineTransformation.RotationInstance(System.Math.PI * 0.01);
p = (Polygon)at.Transform(p);
var tiles = PolygonTiler.Tiles(p, 4, 0).Select(itm => (Geometry)itm.Item2).ToList();
Assert.Equal(4, tiles.Count);
Assert.True(System.Math.Abs(p.Area - tiles.Sum(itm => itm.Area)) <= 0.00001);
}
public void TestPolygonWithShapePointInTile()
{
var t = new Tile(5, 12, 4);
var p = t.ToPolygon(0);
var at = new Geometries.Utilities.AffineTransformation(
1d, 0d, 0.5d * p.EnvelopeInternal.Width,
0d, 1d, 0.5d * p.EnvelopeInternal.Height);
p = (Polygon)at.Transform(p);
var tiles = PolygonTiler.Tiles(p, 4, 0).Select(itm => (Geometry)itm.Item2).ToList();
Assert.Equal(4, tiles.Count);
Assert.True(System.Math.Abs(p.Area - tiles.Sum(itm => itm.Area)) <= 0.00001);
}
public void TestRussia(int zoomLevel, int runTimeInSeconds)
{
_output.WriteLine($"Test PolygonTiler with Russia (zoom: {zoomLevel}, time: {runTimeInSeconds})");
var data = new GeoJsonReader(GeometryFactory.Default, new JsonSerializerSettings(), 2).Read <FeatureCollection>(
File.ReadAllText($"data{Path.DirectorySeparatorChar}russia.osm.geojson"));
var geom = data[0].Geometry;
Assert.IsAssignableFrom <IPolygonal>(geom);
var ts = TimeSpan.FromSeconds(runTimeInSeconds);
int tilesCreated = 0;
var sw = new Stopwatch();
double area = geom.Area;
double covered = 0d;
sw.Start();
for (int i = 0; i < geom.NumGeometries; i++)
{
foreach (var valueTuple in PolygonTiler.Tiles((Polygon)geom.GetGeometryN(i), zoomLevel))
{
tilesCreated++;
covered += ((Geometry)valueTuple.Item2).Area;
if (sw.Elapsed >= ts)
{
sw.Stop();
break;
}
}
}
_output.WriteLine($"No. of tiles created: {tilesCreated} ({sw.Elapsed})");
_output.WriteLine($"Part of covered area: {(covered / area):P}");
}
public void TestAurichAtZoom12()
{
var p = (Polygon) new WKTReader().Read(
@"POLYGON((7.66002273417368 53.542572993953, 7.66173766036759 53.5391581883133, 7.66214163494917 53.5373509789836, " +
"7.66261436546659 53.5363456891095, 7.66258258916752 53.5359043208466, 7.65946163788716 53.5361457486512, " +
"7.65881558902363 53.5361308714676, 7.65810608331794 53.5359860470069, 7.65747761962654 53.5357003268469, " +
"7.65661359397896 53.5353520707904, 7.65578725023568 53.5351617119411, 7.65464708153475 53.5350069368571, " +
"7.65346462749995 53.5347655193895, 7.65403138432821 53.5341606089694, 7.65205031151564 53.5325629404665, " +
"7.65224246394456 53.5317272731287, 7.65263661471445 53.5305403445236, 7.65295703572944 53.5295585441862, " +
"7.65134183452485 53.5279385344239, 7.64990766659184 53.5272489336876, 7.64795651246382 53.5266193031113, " +
"7.64667314657395 53.526859402532, 7.64520558737573 53.5259891161888, 7.64440606918115 53.5255209689606, " +
"7.64975585690317 53.5228569633467, 7.65969726004108 53.5156942812819, 7.66704312056304 53.5103596986421, " +
"7.67807885014628 53.5025102991622, 7.67823484399266 53.5014235244292, 7.67836569901777 53.4973584713123, " +
"7.6785112111824 53.4947445744109, 7.67865686601526 53.4921278107042, 7.67882449969189 53.4859113935922, " +
"7.67924709466502 53.4785004861189, 7.67919836330843 53.4748108019542, 7.67723423026605 53.4629399238196, " +
"7.67649101699345 53.4616098901849, 7.66580355542624 53.4614273395257, 7.66311090844057 53.4613808081545, " +
"7.66110716581642 53.4613461439011, 7.64579099018915 53.4614327788683, 7.64004762841675 53.4614614087227, " +
"7.63938439867634 53.4614639907499, 7.63313979051077 53.4615526008196, 7.63231045753101 53.4615602711485, " +
"7.61289759957413 53.4618351425737, 7.61173604786319 53.4618528723687, 7.60762855138664 53.4619813035104, " +
"7.60621890196816 53.4618762390592, 7.60518838805592 53.461735103933, 7.60420954210398 53.4614962467803, " +
"7.59709165946356 53.4595209647634, 7.59285423909206 53.4570646862747, 7.57378790429858 53.4512618088765, " +
"7.57488498202143 53.449947817854, 7.573841603558 53.4497791232224, 7.57290472664486 53.4495949643638, " +
"7.57212666860197 53.4492886632551, 7.57074983508698 53.4484734553263, 7.56989595524777 53.4479494848721, " +
"7.56920639668005 53.447672251375, 7.56794347392134 53.4474083399895, 7.56771785312692 53.4474029659531, " +
"7.56666495681686 53.4473778816517, 7.56558921269671 53.4474691627534, 7.56466868448323 53.4474921854867, " +
"7.56403694631481 53.4474771203478, 7.56324756744044 53.4473413721552, 7.56219707105994 53.4470554868482, " +
"7.56152081204126 53.446805507402, 7.56082951968706 53.4465551650648, 7.55973270444055 53.4480849002096, " +
"7.5574049262738 53.4473007819125, 7.55837667104114 53.4456151812924, 7.55756930595791 53.4452990888793, " +
"7.55577894695629 53.4445907356897, 7.55451263695829 53.4439308712552, 7.55177198999928 53.4425701414111, " +
"7.54898343453635 53.4410283181794, 7.54753149191263 53.4402200214219, 7.54721212005 53.4400414754077, " +
"7.54611383780716 53.4395744193849, 7.54477790895202 53.4392815256986, 7.54319654466954 53.4390546725156, " +
"7.54129757757432 53.4388471458545, 7.53991234856266 53.4386159705052, 7.53902763140178 53.4383338638073, " +
"7.53824819118433 53.4380542839215, 7.53801728179469 53.4379048231959, 7.53909063180858 53.4349446459896, " +
"7.53343220433349 53.4295288676704, 7.53374100509811 53.4280792718612, 7.53119153708028 53.4292589693867, " +
"7.53021731938459 53.4283000746834, 7.52720599047241 53.4285151688701, 7.52152104777082 53.4299167621297, " +
"7.51902247266398 53.4285712171545, 7.51816670390709 53.428264916467, 7.51710559833197 53.4280488205837, " +
"7.51614876750708 53.4279057493073, 7.51546329651903 53.4277991827445, 7.51379977700565 53.4274450968318, " +
"7.51329074876308 53.4273137558868, 7.51242599231396 53.4265550488522, 7.51169940276447 53.426016918458, " +
"7.51039710422691 53.4253397030691, 7.50964690623155 53.4246551492491, 7.50922140445748 53.4238832928566, " +
"7.50937310012044 53.4234110350202, 7.50927967672727 53.4230280063694, 7.50836396773255 53.422434607247, " +
"7.50792231517904 53.421900325649, 7.50748715160113 53.4212710099059, 7.50633611510549 53.4206242737467, " +
"7.50559017975338 53.4204633345195, 7.50497815237943 53.4200914743434, 7.50419312326653 53.4181685637444, " +
"7.50383434495481 53.4175886853887, 7.50309735725173 53.4167140221241, 7.50207927873115 53.4159693748739, " +
"7.500804291032 53.415390950291, 7.4987802786469 53.414699047165, 7.49440619676722 53.4134261585501, " +
"7.49249841282811 53.4127845820726, 7.49056231874291 53.4119756977621, 7.48867583552404 53.4110252077525, " +
"7.48474999142798 53.4084540434014, 7.4831056036462 53.4074617975491, 7.48034097948121 53.4059660655654, " +
"7.4790300804891 53.4053389181442, 7.47892058613044 53.40714657593, 7.47741935656623 53.4086715714717, " +
"7.48029976279993 53.4109913652061, 7.48416161874033 53.4130226760823, 7.4829014820479 53.4133965222814, " +
"7.48590955761809 53.4149723406003, 7.48702863309396 53.4155574107977, 7.48380783133966 53.4166387574233, " +
"7.47550361659277 53.4163269233001, 7.47459820535725 53.4172310877098, 7.4684052567252 53.4181759457442, " +
"7.47304826559368 53.4235520295864, 7.46923111591881 53.4240966597234, 7.47425911682967 53.4297969374408, " +
"7.47638598797997 53.4299661455246, 7.47682775435839 53.4329541261597, 7.47456383786266 53.4338968580183, " +
"7.47255120806518 53.4318506150376, 7.45967363132316 53.430336855972, 7.46171379396834 53.4358918220705, " +
"7.46019396755926 53.4360881443513, 7.45938996642748 53.4344313019637, 7.4495433433577 53.4343764965982, " +
"7.42684641320768 53.4528531296473, 7.42440386744693 53.4530889503513, 7.42262509482772 53.4513805267689, " +
"7.41991068800476 53.4514115827459, 7.41791554859279 53.4519283013927, 7.41681224895592 53.4524043658418, " +
"7.4177147903743 53.4537131750182, 7.41689104320728 53.4540703165688, 7.41496550375083 53.454237948612, " +
"7.41282683868576 53.4555065279233, 7.41247706700052 53.457692407403, 7.41419559581998 53.4581132564512, " +
"7.4119592342897 53.4609803841439, 7.41059901951635 53.4608203422716, 7.40704764009092 53.4645898066924, " +
"7.40209859193935 53.4677581564188, 7.40261279012765 53.4678186856304, 7.40354524056939 53.4676041554426, " +
"7.40440369794126 53.4679578070499, 7.40579565493035 53.4684936390418, 7.4078479884247 53.469484876137, " +
"7.41103505867176 53.4693939589474, 7.41931574822656 53.4738286953717, 7.41982679673488 53.4768545609361, " +
"7.4199663086204 53.4776585391313, 7.41874689838154 53.4797776721282, 7.41494551547179 53.4838738562383, " +
"7.4138613709614 53.4844942893328, 7.40966503329603 53.4869074942498, 7.40582224824959 53.4915690059714, " +
"7.41118229359556 53.496191576212, 7.41309813277124 53.5008985402984, 7.41248681534515 53.5022953035192, " +
"7.41461977980361 53.5030682423759, 7.41613588399826 53.5036640020981, 7.42031572033468 53.5053063041034, " +
"7.43898222446275 53.5124537351449, 7.44160148483052 53.5135441720523, 7.4419288149163 53.5157177540155, " +
"7.44338320004665 53.5263430986413, 7.44222382245717 53.5269330553169, 7.43639090590775 53.5295675911135, " +
"7.42923837226542 53.5327623889009, 7.43371690130246 53.5356348811498, 7.43789396339659 53.5369977599669, " +
"7.43600306944031 53.5392082260362, 7.44166521206808 53.5411474558971, 7.44585285056978 53.5376087727529, " +
"7.44774102224654 53.5360122050406, 7.44864235638966 53.5352764999947, 7.46187716698679 53.5400970667175, " +
"7.46752469468945 53.5421872368783, 7.46949216758275 53.5428863718375, 7.47421839434015 53.5446301869531, " +
"7.47579471401796 53.54519944686, 7.47608937514685 53.5453055965896, 7.47817187873059 53.5457613210688, " +
"7.47868193018024 53.5458097852917, 7.48211726969819 53.5461366792699, 7.48184638745224 53.5472182543925, " +
"7.48213157348277 53.5472432165523, 7.49518709828013 53.5484341862577, 7.5097227860447 53.5498986183235, " +
"7.52373027597351 53.551275303097, 7.53185628909422 53.5521340909921, 7.55358235319526 53.553790254814, " +
"7.56455371077402 53.5548071068002, 7.57406901922724 53.555923353685, 7.59471587695231 53.5581810708313, " +
"7.59854383022084 53.5587502150964, 7.61873347139971 53.5611947422757, 7.62266476099469 53.5617239928013, " +
"7.63264843632057 53.5617107926166, 7.64793910227671 53.5616450951347, 7.6492258209762 53.5613690742985, " +
"7.6504454266148 53.560731792846, 7.65610572328535 53.5505918455274, 7.66002273417368 53.542572993953))");
var lst = new List <Geometry>();
var lst2 = new List <Geometry>();
var lst3 = new List <Geometry>();
foreach (var valueTuple in PolygonTiler.Tiles(p, 12))
{
var geom = (Geometry)valueTuple.Item2;
for (var i = 0; i < geom.NumGeometries; i++)
{
lst.Add(geom.GetGeometryN(i));
}
var tile = new Tile(valueTuple.Item1);
lst2.Add(tile.ToPolygon(0));
lst3.Add(tile.ToPolygon(5));
_output.WriteLine("Tile id {0}: Tile {1} / Geometry: {2}", valueTuple.Item1, tile, tile.ToPolygon());
}
_output.WriteLine("\n");
_output.WriteLine("\n\nResult1:\n{0}", p.Factory.BuildGeometry(lst));
_output.WriteLine("\n\nResult2:\n{0}", p.Factory.BuildGeometry(lst2));
_output.WriteLine("\n\nResult3:\n{0}", p.Factory.BuildGeometry(lst3));
}