internal void Run(string gpxFile, DEMDataSet dataSet, float Z_FACTOR = 2f, int outputSrid = Reprojection.SRID_PROJECTED_MERCATOR)
{
try
{
float paddingFactor = 2f;
float ModelMaxUnits = 250f;
float GpxLineWidthSTLUnits = 0.1f;
Matrix4x4 stlTransformMatrix = Matrix4x4.CreateRotationX((float)Math.PI / 2f);
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().ReprojectTo(4326, outputSrid);
bbox = bbox.Pad(bbox.Width * paddingFactor, bbox.Height * paddingFactor, 0)
.ReprojectTo(outputSrid, 4326);
var gpxPointsElevated = _elevationService.GetPointsElevation(points, dataSet);
HeightMap hMap = _elevationService.GetHeightMap(ref bbox, dataSet);
hMap = hMap.ReprojectTo(4326, outputSrid)
.ZScale(Z_FACTOR)
.CenterOnOrigin()
.FitInto(ModelMaxUnits)
.BakeCoordinates();
// generate mesh
ModelRoot model = _sharpGltfService.CreateTerrainMesh(hMap, GenOptions.BoxedBaseElevationMin, stlTransformMatrix);
List <Attribution> attributions = new List <Attribution>();
attributions.Add(dataSet.Attribution);
attributions.Add(new Attribution("Generator", "DEM Net Elevation API", "https://elevationapi.com"));
_stlService.STLExport(model.LogicalMeshes[0].Primitives[0], Path.ChangeExtension(gpxFile, ".stl"), false, attributions);
var bboxPoints = bbox.ReprojectTo(4326, outputSrid).CenterOnOrigin();
gpxPointsElevated = gpxPointsElevated.ReprojectTo(4326, outputSrid)
.ZScale(Z_FACTOR)
.CenterOnOrigin(bbox.ReprojectTo(4326, outputSrid))
.FitInto(bboxPoints, ModelMaxUnits)
.ToList();
var gpxModel = _sharpGltfService.AddLine(null, "GPX", gpxPointsElevated, Vector4.One, GpxLineWidthSTLUnits, stlTransformMatrix);
_stlService.STLExport(gpxModel.LogicalMeshes[0].Primitives[0], Path.ChangeExtension(gpxFile, ".gpx.stl"), false, attributions);
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
internal void Run()
{
try
{
string _gpxFile = Path.Combine("SampleData", "trail.gpx");
if (!File.Exists(_gpxFile))
{
_logger.LogError($"Cannot run sample: {_gpxFile} is missing !");
}
DEMDataSet _dataSet = DEMDataSet.SRTM_GL1;
// Read GPX points
var segments = GpxImport.ReadGPX_Segments(_gpxFile);
var points = segments.SelectMany(seg => seg);
// Retrieve elevation for each point on DEM
var gpxPointsElevated = _elevationService.GetPointsElevation(points, _dataSet)
.ToList();
_logger.LogInformation($"{gpxPointsElevated.Count} GPX points elevation calculated");
// Get metrics (stats)
var metrics = gpxPointsElevated.ComputeMetrics();
_logger.LogInformation($"GPX points stats: {metrics}");
var gpxPointsSimplified = gpxPointsElevated.Simplify(50);
_logger.LogInformation($"GPX track is reduced with 50m tolerance.");
var metricsWithReducedPoints = gpxPointsSimplified.ComputeMetrics();
_logger.LogInformation($"GPX points stats after reduction: {metricsWithReducedPoints}");
var geoJson = ConvertLineElevationResultToGeoJson(gpxPointsSimplified);
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
internal void RunGPX(DEMDataSet largeDataSet, DEMDataSet localDataset)
{
try
{
string outputDir = Path.GetFullPath(".");
string _gpxFile = Path.Combine("SampleData", "20191022-Puch-Pöllau.gpx");
string sensorLogFile = Path.Combine("SampleData", "20191023-Puch-Pöllau-sensorlog.json");
var sensorLog = SensorLog.FromJson(sensorLogFile);
//sensorLog.Plot("sensorLog.png");
string balloonModel = Path.Combine("SampleData", "OE-SOE.glb");
float Z_FACTOR = 2f;
float trailWidthMeters = 5f;
ModelRoot balloon = ModelRoot.Load(balloonModel);
//=======================
/// Line strip from GPX
///
// Get GPX points
var segments = GpxImport.ReadGPX_Segments <GpxTrackPoint>(_gpxFile, p => p);
var pointsGpx = segments.SelectMany(seg => seg);
var geoPoints = pointsGpx.ToGeoPoints();
var model = _sharpGltfService.CreateNewModel();
//var largeMesh = GetMeshFromGpxTrack(outputDir, largeDataSet, geoPoints
// , bboxScale: 5
// , zFactor: Z_FACTOR
// , generateTIN: false
// , tinPrecision: 500d
// , drawGpxOnTexture: false
// , ImageryProvider.OpenTopoMap);
//meshes.Add(largeMesh);
model = GetMeshFromGpxTrack(model, outputDir, localDataset, geoPoints
, bboxScale: (1.3, 1.5)
, zFactor: Z_FACTOR
, generateTIN: false
, tinPrecision: 50d
, drawGpxOnTexture: true
, ImageryProvider.EsriWorldImagery);
var gpxPoints = geoPoints.ReprojectGeodeticToCartesian().ZScale(Z_FACTOR);
model = _sharpGltfService.AddLine(model, gpxPoints, new Vector4(0, 1, 0, 0.5f), trailWidthMeters);
// model export
Console.WriteLine("GenerateModel...");
var node = model.LogicalNodes.First();
pointsGpx = pointsGpx.ReprojectGeodeticToCartesian().ZScale(Z_FACTOR);
// animations
node = CreateAnimationFromGpx("GPX", node, pointsGpx, 1f);
node = CreateAnimationFromGpx("GPX x500", node, pointsGpx, 500f);
var sceneBuilderBalloon = balloon.DefaultScene.ToSceneBuilder();
var sceneBuilderTerrain = model.DefaultScene.ToSceneBuilder();
//sceneBuilderBalloon.
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), $"{GetType().Name}.glb"));
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
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);
}
}
