internal void Run(string wkt, string name, DEMDataSet dataSet, int precisionMeters = 10)
{
try
{
int outputSrid = Reprojection.SRID_PROJECTED_MERCATOR;
var bbox = GeometryService.GetBoundingBox(wkt);
_logger.LogInformation($"Getting height map...");
HeightMap hMap = _elevationService.GetHeightMap(ref bbox, dataSet);
hMap = hMap.ZScale(2);
_logger.LogInformation($"Generating TIN with {precisionMeters}m precision...");
hMap = hMap.ReprojectTo(4326, outputSrid);
var model = TINGeneration.GenerateTIN(hMap, (double)precisionMeters, _glTFService, null, outputSrid);
_logger.LogInformation($"Generating model...");
string v_nomFichierOut = Path.Combine(Directory.GetCurrentDirectory(), $"{name}_TIN_{dataSet.Name}.glb");
model.SaveGLB(v_nomFichierOut);
_logger.LogInformation($"Model {v_nomFichierOut} generated.");
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
public static ModelRoot AddTINMesh(ModelRoot model, HeightMap hMap, double precision, SharpGltfService gltf, PBRTexture textures, int srid)
{
Triangulation triangulation = TINGeneration.GenerateTIN(hMap, precision, srid);
return(gltf.AddTerrainMesh(model, triangulation, textures, doubleSided: true));
}
public static ModelRoot GenerateTIN(HeightMap hMap, double precision, SharpGltfService gltf, PBRTexture textures, int srid)
{
return(TINGeneration.AddTINMesh(gltf.CreateNewModel(), hMap, precision, gltf, textures, srid));
}
internal void Run(DEMDataSet dataSet, bool trackIn3D = true, bool generateTIN = false, int outputSrid = Reprojection.SRID_PROJECTED_LAMBERT_93)
{
try
{
string _gpxFile = Path.Combine("SampleData", "GPX", "lake-pleasant-camping.gpx");
bool withTexture = true;
float Z_FACTOR = 1.8f;
float Z_TRANSLATE_GPX_TRACK_METERS = 5;
float trailWidthMeters = 5f;
int skipGpxPointsEvery = 1;
ImageryProvider provider = ImageryProvider.MapBoxSatellite; // new TileDebugProvider(null, maxDegreeOfParallelism: 1);// ImageryProvider.MapBoxSatellite;
string outputDir = Path.GetFullPath(".");
//=======================
/// Line strip from GPX
///
// Get GPX points
var segments = GpxImport.ReadGPX_Segments(_gpxFile);
var points = segments.SelectMany(seg => seg);
var bbox = points.GetBoundingBox().Scale(1.1, 1.1).ReprojectTo(4326, dataSet.SRID);
// DEBUG
// Test case : ASTER GDEMv3 : 5.5 43.5 Z=315
// 303 307 308
// 309 *315* 317
// 314 321 324
//points = GenerateDebugTrailPointsGenerateDebugTrailPoints(5.003, 5.006, 43.995, 43.997, 0.0001, 0.001);
//points = GenerateDebugTrailPointsGenerateDebugTrailPoints(5.4990, 5.501, 43.4990, 43.501, 0.0001, 0.001);
//points = GenerateDebugTrailPointsGenerateDebugTrailPoints(5.49, 5.51, 43.49, 43.51, 0.0005, 0.001);
//bbox = points.GetBoundingBox().Scale(1.3,1.3);
IEnumerable <GeoPoint> gpxPointsElevated = _elevationService.GetPointsElevation(points, dataSet);
//
//=======================
//=======================
/// Height map (get dem elevation for bbox)
///
HeightMap hMap = _elevationService.GetHeightMap(ref bbox, dataSet);
// var refPoint = new GeoPoint(43.5, 5.5);
// hMap = hMap.BakeCoordinates();
// var hMapRefPoint = hMap.Coordinates.OrderBy(c => c.DistanceSquaredTo(refPoint)).First();
// var gpxRefPoint = gpxPointsElevated.OrderBy(c => c.DistanceSquaredTo(refPoint)).First();
// hMapRefPoint.Elevation += 60;
// gpxRefPoint.Elevation += 60;
hMap = hMap.ReprojectTo(dataSet.SRID, outputSrid)
//.CenterOnOrigin()
.ZScale(Z_FACTOR)
.BakeCoordinates();
//
//=======================
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (withTexture)
{
Console.WriteLine("Download image tiles...");
TileRange tiles = _imageryService.DownloadTiles(bbox, provider, 12);
string fileName = Path.Combine(outputDir, "Texture.jpg");
Console.WriteLine("Construct texture...");
//TextureInfo texInfo = _imageryService.ConstructTextureWithGpxTrack(tiles, bbox, fileName, TextureImageFormat.image_jpeg, gpxPointsElevated, false);
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
//float Z_FACTOR = 0.00002f;
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
//var normalMap = _imageryService.GenerateNormalMap(hMap, outputDir);
//pbrTexture = PBRTexture.Create(texInfo, normalMap);
pbrTexture = PBRTexture.Create(texInfo, null);
//hMap = hMap.CenterOnOrigin(Z_FACTOR);
//
//=======================
}
//=======================
// MESH 3D terrain
Console.WriteLine("Height map...");
Console.WriteLine("GenerateTriangleMesh...");
//hMap = _elevationService.GetHeightMap(bbox, _dataSet);
ModelRoot model = null;
if (generateTIN)
{
model = TINGeneration.GenerateTIN(hMap, 10d, _sharpGltfService, pbrTexture, outputSrid);
}
else
{
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
// generate mesh with texture
model = _sharpGltfService.CreateTerrainMesh(hMap, pbrTexture);
}
if (trackIn3D)
{
// take 1 point evert nth
gpxPointsElevated = gpxPointsElevated.Where((x, i) => (i + 1) % skipGpxPointsEvery == 0);
gpxPointsElevated = gpxPointsElevated.ZTranslate(Z_TRANSLATE_GPX_TRACK_METERS)
.ReprojectTo(dataSet.SRID, outputSrid)
//.CenterOnOrigin()
//.CenterOnOrigin(hMap.BoundingBox)
.ZScale(Z_FACTOR);
model = _sharpGltfService.AddLine(model, "GPX", gpxPointsElevated, VectorsExtensions.CreateColor(255, 0, 0, 128), trailWidthMeters);
}
// model export
Console.WriteLine("GenerateModel...");
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), $"{GetType().Name} dst{dataSet.Name} TIN{generateTIN} Srid{outputSrid}.glb"));
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
