[TestFixture]

public class HeatLayerExample

{

static HeatLayerExample ()

{

GeoAPI.GeometryServiceProvider.Instance = new NtsGeometryServices();

}

[Test]

public void HeatLayerTest()

{

var m = new SharpMap.Map(new Size(640, 480));

var data = CreatingData.CreatePointFeatureDataTableFromArrays(

CreatingData.GetRandomOrdinates(150, 5, 6),

CreatingData.GetRandomOrdinates(150, 52, 53), null,

CreatingData.GetRandomOrdinates(150, 0, 1));

var p = new SharpMap.Data.Providers.GeometryFeatureProvider(data);

var l = new HeatLayer(p, "Data");

m.Layers.Add(l);

m.ZoomToBox(new Envelope(5.4, 5.8, 52.4, 52.6));

//m.ZoomToExtents();

var img = m.GetMap();

img.Save("HeatMap.png", ImageFormat.Png);

img.Dispose();

}

[Test]

public void TestRealData()

{

var fdt = GetRealFeatureDataTable();

FillRealDataTable(fdt);

var p = new SharpMap.Data.Providers.GeometryFeatureProvider(fdt);

var m = new SharpMap.Map(new Size(640, 640));

m.Layers.Add(new TileLayer(BruTile.Predefined.KnownTileSources.Create(), "OSM"));

var l = new HeatLayer(p, "Data", 0.001f);

l.LayerName = "HEAT";

m.Layers.Add(l);

var ctfac = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();

l.CoordinateTransformation =

ctfac.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84,

ProjNet.CoordinateSystems.ProjectedCoordinateSystem.WebMercator);

l.ZoomMin = 0;// 0.01 * m.GetExtents().Width;

l.ZoomMax = /*0.9 * */m.GetExtents().Width;

l.OpacityMax = 1;

l.OpacityMin = 0.3f;

m.ZoomToBox(l.Envelope);

for (var i = 0; i < 5; i++)

{

using (var img = m.GetMap())

{

img.Save("RealDataHeat" + i + ".png");

}

m.Zoom /= 2;

}

m.ZoomToExtents();

using (var img = m.GetMap())

{

img.Save("RealDataHeat.png");

}

}

private static FeatureDataTable GetRealFeatureDataTable()

{

var res = new FeatureDataTable();

res.Columns.Add("Oid", typeof (uint));

res.Columns.Add("Data", typeof (int));

return res;

}

private static void FillRealDataTable(FeatureDataTable table)

{

table.BeginLoadData();

var factory = GeoAPI.GeometryServiceProvider.Instance.CreateGeometryFactory(4326);

uint id = 0;

foreach (var datas in PointData())

{

var row = (FeatureDataRow) table.LoadDataRow(new object[] {id++, datas[0]}, LoadOption.OverwriteChanges);

row.Geometry = factory.CreatePoint(new Coordinate(datas[2], datas[1]));

}

table.EndLoadData();

}

private static IEnumerable<double[]> PointData()

{

return new List<double[]>(new[]

{

new [] {339, 21.400000, -157.797429},

new [] {796, 25.850000, -80.185260},

new [] {751, 26.020000, -80.240183},

new [] {315, 26.140000, -81.795000},

new [] {788, 26.450000, -80.101878},

new [] {429, 26.570000, -80.059085},

new [] {251, 26.630000, -81.872387},

new [] {401, 26.680000, -81.898955},

new [] {18, 26.740000, -81.406740},

new [] {553, 27.250000, -80.831178},

new [] {768, 27.270000, -82.530540},

new [] {579, 27.320000, -81.367043},

new [] {313, 27.600000, -81.501486},

new [] {789, 27.630000, -80.432813},

new [] {230, 27.640000, -80.393423},

new [] {767, 27.780000, -82.694739},

new [] {766, 27.890000, -82.324265},

new [] {293, 27.890000, -82.790722},

new [] {736, 27.950000, -81.923074},

new [] {63, 28.060000, -81.786049},

new [] {757, 28.060000, -82.459355},

new [] {467, 28.070000, -81.812234},

new [] {11, 28.110000, -81.624056},

new [] {584, 28.130000, -80.627390},

new [] {576, 28.220000, -81.293059},

new [] {361, 28.230000, -80.680889},

new [] {583, 28.230000, -80.698238},

new [] {765, 28.300000, -81.338012},

new [] {573, 28.420000, -80.752035},

new [] {705, 28.470000, -81.362895},

new [] {320, 28.540000, -81.377507},

new [] {591, 28.550000, -81.475879},

new [] {781, 28.560000, -80.815052},

new [] {578, 28.570000, -81.584661},

new [] {760, 28.620000, -81.250675},

new [] {100, 28.670000, -82.106923},

new [] {581, 28.700000, -81.347538},

new [] {724, 28.780000, -81.347362},

new [] {136, 28.800000, -81.640566},

new [] {574, 28.870000, -82.599168},

new [] {735, 29.060000, -82.054651},

new [] {764, 29.110000, -81.020134},

new [] {729, 29.190000, -82.083761},

new [] {725, 29.190000, -82.132731},

new [] {838, 29.270000, -81.099948},

new [] {285, 29.450000, -98.497421},

new [] {389, 29.560000, -81.237477},

new [] {807, 29.660000, -95.130076},

new [] {135, 29.680000, -82.367940},

new [] {726, 29.700000, -98.126991},

new [] {103, 29.710000, -82.648631},

new [] {776, 29.710000, -98.127966},

new [] {819, 29.810000, -98.740893},

new [] {351, 29.860000, -90.047145},

new [] {805, 29.880000, -81.298367},

new [] {804, 29.880000, -98.285363},

new [] {738, 29.940000, -90.104909},

new [] {818, 30.040000, -99.140817},

new [] {176, 30.110000, -95.607263},

new [] {235, 30.130000, -81.786692},

new [] {300, 30.130000, -84.345674},

new [] {68, 30.170000, -81.764096},

new [] {468, 30.180000, -93.219208},

new [] {262, 30.190000, -81.600562},

new [] {374, 30.240000, -81.552303},

new [] {144, 30.280000, -82.121438},

new [] {295, 30.290000, -81.727368},

new [] {250, 30.290000, -81.789245},

new [] {307, 30.310000, -81.605516},

new [] {240, 30.330000, -81.417257},

new [] {733, 30.370000, -81.596726},

new [] {421, 30.430000, -84.215300},

new [] {299, 30.430000, -91.026142},

new [] {420, 30.440000, -91.090594},

new [] {479, 30.450000, -84.279467},

new [] {239, 30.480000, -84.318377},

new [] {478, 30.540000, -84.216239},

new [] {418, 30.550000, -90.227644},

new [] {188, 30.600000, -87.903611},

new [] {763, 30.650000, -88.207642},

new [] {749, 30.670000, -81.462778},

new [] {95, 30.720000, -81.549510},

new [] {823, 30.840000, -83.978889},

new [] {163, 31.170000, -83.788916},

new [] {407, 31.440000, -100.479628},

new [] {59, 31.510000, -82.847066},

new [] {391, 31.690000, -98.975309},

new [] {26, 31.700000, -98.124370},

new [] {173, 31.720000, -98.985536},

new [] {284, 31.760000, -106.488585},

new [] {200, 31.800000, -97.515282},

new [] {728, 31.840000, -106.530971},

new [] {669, 31.850000, -96.796327},

new [] {146, 31.900000, -98.603887},

new [] {352, 32.000000, -102.089999},

new [] {472, 32.010000, -97.123356},

new [] {242, 32.030000, -102.091483},

new [] {309, 32.070000, -81.096677},

new [] {279, 32.080000, -81.089138},

new [] {507, 32.090000, -96.468091},

new [] {212, 32.090000, -98.345469},

new [] {785, 32.150000, -80.779153},

new [] {504, 32.180000, -95.857678},

new [] {631, 32.220000, -80.752778},

new [] {670, 32.220000, -98.222407},

new [] {19, 32.230000, -80.863109},

new [] {821, 32.260000, -107.768750},

new [] {50, 32.270000, -86.611389},

new [] {17, 32.340000, -90.077056},

new [] {808, 32.340000, -96.642953},

new [] {542, 32.350000, -97.385083},

new [] {849, 32.380000, -86.232492},

new [] {368, 32.380000, -86.304871},

new [] {806, 32.390000, -96.163333},

new [] {175, 32.410000, -98.818124},

new [] {36, 32.420000, -97.238368},

new [] {150, 32.430000, -80.674066},

new [] {601, 32.430000, -96.873605},

new [] {668, 32.440000, -97.683466},

new [] {711, 32.460000, -93.721558},

new [] {201, 32.490000, -80.949435},

new [] {739, 32.510000, -92.124297},

new [] {731, 32.540000, -92.067849},

new [] {833, 32.540000, -95.883143},

new [] {431, 32.550000, -94.371334},

new [] {197, 32.570000, -105.939028},

new [] {48, 32.570000, -80.283015},

new [] {802, 32.590000, -83.641578},

new [] {147, 32.590000, -96.308611},

new [] {656, 32.590000, -97.127470},

new [] {174, 32.600000, -96.767751},

new [] {633, 32.610000, -80.152594},

new [] {343, 32.610000, -96.951808},

new [] {831, 32.620000, -96.874188},

new [] {399, 32.660000, -117.041286},

new [] {256, 32.660000, -96.762505},

new [] {650, 32.660000, -97.004569},

new [] {180, 32.670000, -95.487313},

new [] {539, 32.670000, -97.078613},

new [] {645, 32.670000, -97.368950},

new [] {844, 32.680000, -114.624630},

new [] {546, 32.680000, -97.186941},

new [] {550, 32.690000, -97.271407},

new [] {549, 32.690000, -97.336823},

new [] {231, 32.700000, -114.637567},

new [] {644, 32.700000, -97.282870},

new [] {520, 32.710000, -96.843588},

new [] {538, 32.710000, -97.097534},

new [] {632, 32.720000, -80.085498},

new [] {634, 32.720000, -80.085498},

new [] {143, 32.720000, -80.268430},

new [] {510, 32.720000, -96.783416},

new [] {643, 32.720000, -97.237410},

new [] {639, 32.720000, -97.335129},

new [] {548, 32.720000, -97.434713},

new [] {544, 32.720000, -97.495585},

new [] {617, 32.730000, -79.975676},

new [] {832, 32.730000, -94.943703},

new [] {516, 32.730000, -96.822811},

new [] {545, 32.730000, -97.123682},

new [] {266, 32.730000, -97.484957},

new [] {599, 32.740000, -96.277918},

new [] {514, 32.740000, -96.700085},

new [] {543, 32.740000, -97.394745},

new [] {672, 32.740000, -97.632370},

new [] {412, 32.750000, -117.244968},

new [] {202, 32.750000, -81.210350},

new [] {247, 32.750000, -96.822036},

new [] {09, 32.750000, -96.830918},

new [] {454, 32.750000, -97.012701},

new [] {642, 32.750000, -97.259562},

new [] {552, 32.750000, -97.332953},

new [] {80, 32.760000, -79.831139},

new [] {10, 32.760000, -96.583523},

new [] {470, 32.760000, -97.799249},

new [] {57, 32.760000, -98.890193},

new [] {373, 32.770000, -79.973634},

new [] {134, 32.770000, -96.704987},

new [] {646, 32.770000, -97.409242},

new [] {624, 32.780000, -79.929373},

new [] {234, 32.780000, -79.930601},

new [] {616, 32.780000, -80.043882},

new [] {519, 32.780000, -96.800000},

new [] {521, 32.780000, -96.800000},

new [] {277, 32.790000, -79.876603},

new [] {625, 32.790000, -79.940148},

new [] {618, 32.790000, -79.942805},

new [] {612, 32.790000, -79.945353},

new [] {613, 32.790000, -79.948032},

new [] {619, 32.810000, -79.996488},

new [] {49, 32.810000, -80.002494},

new [] {511, 32.810000, -96.721766},

new [] {480, 32.810000, -96.773229},

new [] {513, 32.810000, -96.793943},

new [] {354, 32.810000, -96.949944},

new [] {160, 32.810000, -98.117639},

new [] {512, 32.820000, -96.807529},

new [] {648, 32.820000, -97.226831},

new [] {471, 32.820000, -97.418479},

new [] {825, 32.830000, -116.754328},

new [] {508, 32.830000, -96.752918},

new [] {547, 32.830000, -97.142381},

new [] {635, 32.840000, -79.814974},

new [] {615, 32.840000, -80.048905},

new [] {850, 32.840000, -96.581226},

new [] {598, 32.850000, -96.479829},

new [] {515, 32.850000, -96.651997},

new [] {517, 32.850000, -96.708892},

new [] {830, 32.850000, -96.772349},

new [] {859, 32.860000, -96.592570},

new [] {839, 32.860000, -96.604365},

new [] {356, 32.870000, -96.717037},

new [] {638, 32.880000, -79.982760},

new [] {290, 32.880000, -96.851025},

new [] {654, 32.880000, -97.185955},

new [] {525, 32.890000, -96.648251},

new [] {518, 32.890000, -96.806772},

new [] {23, 32.900000, -105.956442},

new [] {254, 32.900000, -80.658643},

new [] {397, 32.900000, -96.838203},

new [] {652, 32.910000, -80.101446},

new [] {7, 32.910000, -80.650301},

new [] {98, 32.910000, -98.406483},

new [] {432, 32.920000, -96.786366},

new [] {524, 32.930000, -96.665373},

new [] {434, 32.940000, -96.885916},

new [] {137, 32.940000, -97.133889},

new [] {132, 32.950000, -96.729444},

new [] {154, 32.950000, -97.116698},

new [] {748, 32.960000, -117.054690},

new [] {362, 32.960000, -117.110833},

new [] {837, 32.960000, -95.290999},

new [] {102, 32.960000, -96.959673},

new [] {505, 32.970000, -96.842634},

new [] {225, 32.990000, -80.019948},

new [] {92, 32.990000, -80.033053},

new [] {162, 32.990000, -94.960056},

new [] {653, 33.010000, -80.187630},

new [] {114, 33.010000, -81.306076},

new [] {592, 33.010000, -97.096667},

new [] {651, 33.020000, -80.178900},

new [] {72, 33.020000, -96.681640},

new [] {829, 33.030000, -94.720181},

new [] {267, 33.070000, -96.781643},

new [] {503, 33.080000, -96.710726},

new [] {836, 33.080000, -96.882552},

new [] {181, 33.090000, -96.081503},

new [] {671, 33.090000, -98.578825},

new [] {213, 33.100000, -79.479982},

new [] {712, 33.120000, -117.223619},

new [] {117, 33.120000, -94.166528},

new [] {594, 33.130000, -96.835606},

new [] {27, 33.140000, -95.580322},

new [] {52, 33.150000, -80.061138},

new [] {417, 33.190000, -117.370543},

new [] {60, 33.190000, -95.224627},

new [] {462, 33.200000, -117.185742},

new [] {119, 33.200000, -96.602643},

new [] {526, 33.200000, -96.618851},

new [] {834, 33.200000, -96.664223},

new [] {523, 33.220000, -97.155130},

new [] {657, 33.220000, -97.742895},

new [] {662, 33.220000, -98.157364},

new [] {55, 33.230000, -80.037179},

new [] {199, 33.230000, -81.352310},

new [] {522, 33.230000, -97.133558},

new [] {506, 33.240000, -95.908738},

new [] {28, 33.320000, -105.632780},

new [] {203, 33.320000, -81.140720},

new [] {325, 33.330000, -118.343706},

new [] {79, 33.330000, -79.922922},

new [] {177, 33.340000, -81.140012},

new [] {215, 33.360000, -81.271844},

new [] {297, 33.380000, -117.248134},

new [] {191, 33.380000, -79.294722},

new [] {30, 33.390000, -80.347500},

new [] {127, 33.420000, -94.043239},

new [] {85, 33.440000, -80.064283},

new [] {86, 33.440000, -94.080349},

new [] {721, 33.450000, -79.561997},

new [] {120, 33.450000, -94.416481},

new [] {722, 33.470000, -79.138863},

new [] {435, 33.480000, -80.871986},

new [] {476, 33.480000, -86.667895},

new [] {640, 33.490000, -80.855173},

new [] {856, 33.500000, -117.665290},

new [] {820, 33.510000, -111.898333},

new [] {403, 33.530000, -111.994280},

new [] {790, 33.530000, -84.354438},

new [] {795, 33.550000, -79.052750},

new [] {187, 33.570000, -97.856847},

new [] {641, 33.580000, -79.132096},

new [] {166, 33.580000, -96.181486},

new [] {198, 33.590000, -80.360566},

new [] {379, 33.620000, -117.926273},

new [] {183, 33.620000, -79.004155},

new [] {125, 33.620000, -97.142182},

new [] {115, 33.640000, -96.611424},

new [] {394, 33.660000, -95.554571},

new [] {94, 33.670000, -79.829666},

new [] {214, 33.690000, -80.856286},

new [] {636, 33.710000, -78.863072},

new [] {857, 33.740000, -117.818790},

new [] {782, 33.750000, -84.747778},

new [] {269, 33.770000, -118.146345},

new [] {835, 33.810000, -96.690562},

new [] {186, 33.820000, -98.187218},

new [] {637, 33.830000, -78.666362},

new [] {89, 33.830000, -84.377842},

new [] {628, 33.840000, -79.049596},

new [] {109, 33.850000, -83.917016},

new [] {661, 33.860000, -98.524964},

new [] {541, 33.860000, -98.569900},

new [] {220, 33.880000, -80.402761},

new [] {655, 33.910000, -80.349478},

new [] {663, 33.910000, -98.494777},

new [] {443, 33.920000, -117.933407},

new [] {66, 33.920000, -80.341426},

new [] {723, 33.940000, -80.498719},

new [] {774, 33.940000, -84.294315},

new [] {752, 33.980000, -117.349770},

new [] {33, 33.980000, -84.550697},

new [] {155, 34.080000, -80.562660},

new [] {540, 34.080000, -98.560654},

new [] {378, 34.160000, -118.384714},

new [] {630, 34.180000, -79.793233},

new [] {419, 34.190000, -118.303643},

new [] {360, 34.190000, -79.765736},

new [] {257, 34.220000, -118.234279},

new [] {221, 34.250000, -79.794547},

new [] {773, 34.300000, -77.875039},

new [] {77, 34.300000, -79.868845},

new [] {12, 34.380000, -80.069072},

new [] {737, 34.410000, -103.205337},

new [] {164, 34.420000, -79.376576},

new [] {466, 34.430000, -119.723031},

new [] {151, 34.430000, -119.800659},

new [] {96, 34.610000, -79.679682},

new [] {130, 34.700000, -79.887661},

new [] {800, 34.820000, -82.228861},

new [] {753, 34.850000, -82.406049},

new [] {170, 34.860000, -84.320153},

new [] {554, 34.950000, -80.673041},

new [] {314, 34.960000, -81.896076},

new [] {734, 34.990000, -85.326340},

new [] {87, 35.000000, -106.715443},

new [] {13, 35.040000, -89.666668},

new [] {99, 35.050000, -85.290607},

new [] {799, 35.070000, -83.216044},

new [] {319, 35.090000, -106.611704},

new [] {822, 35.110000, -106.566499},

new [] {121, 35.110000, -89.927171},

new [] {330, 35.120000, -118.450050},

new [] {658, 35.150000, -119.456842},

new [] {771, 35.160000, -80.737144},

new [] {798, 35.180000, -83.388479},

new [] {6, 35.200000, -111.643984},

new [] {410, 35.200000, -87.032981},

new [] {67, 35.210000, -86.096907},

new [] {345, 35.220000, -89.750545},

new [] {675, 35.330000, -119.092128},

new [] {223, 35.360000, -107.935662},

new [] {20, 35.360000, -86.209091},

new [] {323, 35.360000, -97.517300},

new [] {677, 35.370000, -119.027291},

new [] {84, 35.390000, -118.967439},

new [] {676, 35.410000, -119.021521},

new [] {770, 35.420000, -82.574551},

new [] {769, 35.480000, -120.663838},

new [] {689, 35.500000, -119.270833},

new [] {321, 35.520000, -86.070273},

new [] {793, 35.590000, -82.407705},

new [] {797, 35.600000, -82.554167},

new [] {387, 35.640000, -117.672219},

new [] {730, 35.690000, -105.933445},

new [] {762, 35.690000, -79.811406},

new [] {359, 35.700000, -88.887446},

new [] {25, 35.740000, -118.414605},

new [] {385, 35.770000, -119.233781},

new [] {326, 35.790000, -78.649743},

new [] {255, 35.860000, -78.671766},

new [] {777, 35.920000, -84.130373},

new [] {310, 35.970000, -86.504818},

new [] {674, 36.010000, -120.128435},

new [] {747, 36.020000, -96.012012},