public void OsmAllWithTerrain(string name, string bboxWKT, bool centerOnOrigin, float ZScale)
{
DEMDataSet dataset = DEMDataSet.NASADEM;
var bbox = GeometryService.GetBoundingBox(bboxWKT);
bool computeElevations = false;
string outputDir = Directory.GetCurrentDirectory();
var transform = new ModelGenerationTransform(bbox, Reprojection.SRID_PROJECTED_MERCATOR, centerOnOrigin: centerOnOrigin, ZScale, centerOnZOrigin: false);
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
transform.BoundingBox = bbox; // bbox changed by GetHeigtMap
heightMap = transform.TransformHeightMap(heightMap);
TileRange tiles = _imageryService.DownloadTiles(bbox, ImageryProvider.EsriWorldImagery, 15);
string fileName = Path.Combine(outputDir, "Texture.jpg");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
var pbrTexture = PBRTexture.Create(texInfo, null);
ModelRoot model = _osmProcessor.Run(null, OsmLayer.Buildings | OsmLayer.Highways, bbox, transform, computeElevations, dataset, downloadMissingFiles: true);
model = _gltfService.AddTerrainMesh(model, heightMap, pbrTexture);
model.SaveGLB(Path.Combine(outputDir, $"{nameof(OsmAllWithTerrain)}_{name}" + ".glb"));
}
internal void ExportVisualTopoToGLB(VisualTopoModel visualTopoModel, DEMDataSet dataset, string outputFile, bool drawOnTexture, float marginMeters, float zFactor, ImageryProvider imageryProvider)
{
int outputSrid = 3857;
float lineWidth = 1.0F;
int numTilesPerImage = 4;
BoundingBox bbox = visualTopoModel.BoundingBox // relative coords
.Translate(visualTopoModel.EntryPoint.Longitude, visualTopoModel.EntryPoint.Latitude, visualTopoModel.EntryPoint.Elevation ?? 0) // absolute coords
.Pad(marginMeters) // margin around model
.ReprojectTo(visualTopoModel.SRID, dataset.SRID); // DEM coords
//=======================
// Height map (get dem elevation for bbox)
//
// Get height map
// Note that ref Bbox means that the bbox will be adjusted to match DEM data
var heightMap = elevationService.GetHeightMap(ref bbox, dataset, downloadMissingFiles: true);
var bboxTerrainSpace = bbox.ReprojectTo(dataset.SRID, outputSrid); // terrain coords
// Model origin
GeoPoint axisOriginWorldSpace = visualTopoModel.EntryPoint.ReprojectTo(visualTopoModel.SRID, outputSrid)
.CenterOnOrigin(bboxTerrainSpace);
Vector3 axisOriginModelSpace = visualTopoModel.EntryPoint.AsVector3();
//await signalR.ReportGenerateProgressAsync(signalRConnectionId, "Getting GPX extent elevation...", 20);
//=======================
// Local transform function from model coordinates (relative to entry, in meters)
// and global coordinates absolute in final 3D model space
//
IEnumerable <GeoPoint> TransformLine(IEnumerable <GeoPoint> line)
{
var newLine = line.Translate(visualTopoModel.EntryPoint) // Translate to entry (=> global topo coord space)
.ReprojectTo(visualTopoModel.SRID, outputSrid) // Reproject to terrain coord space
.CenterOnOrigin(bboxTerrainSpace) // Center on terrain space origin
.CenterOnOrigin(axisOriginWorldSpace);
return(newLine);
};
//=======================
// 3D model
//
var gltfModel = sharpGltfService.CreateNewModel();
// Add X/Y/Z axis on entry point
var axis = meshService.CreateAxis();
sharpGltfService.AddMesh(gltfModel, "Axis", axis, doubleSided: false);
int i = 0;
var triangulation = visualTopoModel.TriangulationFull3D.Clone()
.Translate(axisOriginModelSpace) // already zScaled if zFactor > 1
.ReprojectTo(visualTopoModel.SRID, outputSrid)
.CenterOnOrigin(bboxTerrainSpace)
.CenterOnOrigin(axisOriginWorldSpace.AsVector3());
gltfModel = sharpGltfService.AddMesh(gltfModel, "Cavite3D", triangulation, VectorsExtensions.CreateColor(0, 255, 0), doubleSided: false);
////=======================
//// 3D cavity model
//foreach (var line in visualTopoModel.Topology3D) // model.Topology3D is the graph of topo paths
//{
// // Add line to model
// gltfModel = sharpGltfService.AddLine(gltfModel
// , string.Concat("CavitySection", i++) // name of 3D node
// , TransformLine(line) // call transform function
// , color: VectorsExtensions.CreateColor(255, 0, 0, 128)
// , lineWidth);
//}
// Reproject and center height map coordinates
heightMap = heightMap.ReprojectTo(dataset.SRID, outputSrid)
.CenterOnOrigin(bboxTerrainSpace)
.ZScale(zFactor)
.CenterOnOrigin(axisOriginWorldSpace);
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (imageryProvider != null)
{
TileRange tiles = imageryService.DownloadTiles(bbox, imageryProvider, numTilesPerImage);
string fileName = Path.Combine(Path.GetDirectoryName(outputFile), "Texture.jpg");
Console.WriteLine("Construct texture...");
TextureInfo texInfo = null;
if (drawOnTexture)
{
var topoTexture = visualTopoModel.Topology3D.SelectMany(l => l).Translate(visualTopoModel.EntryPoint).ReprojectTo(visualTopoModel.SRID, 4326);
texInfo = imageryService.ConstructTextureWithGpxTrack(tiles, bbox, fileName, TextureImageFormat.image_jpeg
, topoTexture, drawGpxVertices: true);
}
else
{
texInfo = imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
}
pbrTexture = PBRTexture.Create(texInfo, null);
}
//
//=======================
gltfModel = sharpGltfService.AddTerrainMesh(gltfModel, heightMap, pbrTexture);
gltfModel.SaveGLB(outputFile);
}
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));
}
private void Buildings3DOnly()
{
string outputDir = Directory.GetCurrentDirectory();
string WKT_SF_BIG = "POLYGON((-122.53517427420718 37.81548554152065,-122.35149660086734 37.81548554152065,-122.35149660086734 37.70311455416941,-122.53517427420718 37.70311455416941,-122.53517427420718 37.81548554152065))";
string WKT_SF_SMALL = "POLYGON((-122.42722692299768 37.81034598808797, -122.38886060524865 37.81034598808797, -122.38886060524865 37.784573673820816, -122.42722692299768 37.784573673820816, -122.42722692299768 37.81034598808797))";
string WKT_SF_SUPERSMALL = "POLYGON((-122.41063177228989 37.80707295150412,-122.40904390455307 37.80707295150412,-122.40904390455307 37.806064225434206,-122.41063177228989 37.806064225434206,-122.41063177228989 37.80707295150412))";
// FULL
string WKT_PRIPYAT_FULL = "POLYGON((30.021919548702254 51.41813804241615,30.083030998897566 51.41813804241615,30.083030998897566 51.389438684773985,30.021919548702254 51.389438684773985,30.021919548702254 51.41813804241615))";
// Cas 1
//string WKT_PRIPYAT = "POLYGON((30.05430313958436 51.404795567637294,30.055118531124887 51.404795567637294,30.055118531124887 51.40432372279637,30.05430313958436 51.40432372279637,30.05430313958436 51.404795567637294))";
// cas 2
//string WKT_PRIPYAT = "POLYGON((30.062877280833636 51.40748141189236,30.063456637980853 51.40748141189236,30.063456637980853 51.40716017522757,30.062877280833636 51.40716017522757,30.062877280833636 51.40748141189236))";
// cas 3
//string WKT_PRIPYAT = "POLYGON((30.065251398582948 51.407283441091266,30.066243815918458 51.407283441091266,30.066243815918458 51.40558353075506,30.065251398582948 51.40558353075506,30.065251398582948 51.407283441091266))";
string WKT_PRIPRYAT_SOMEROADS = "POLYGON((30.062684362726948 51.40792711901257,30.064690655070088 51.40792711901257,30.064690655070088 51.40693664170241,30.062684362726948 51.40693664170241,30.062684362726948 51.40792711901257))";
// SF Big: POLYGON((-122.53517427420718 37.81548554152065,-122.35149660086734 37.81548554152065,-122.35149660086734 37.70311455416941,-122.53517427420718 37.70311455416941,-122.53517427420718 37.81548554152065))
// SF Small: POLYGON((-122.41967382241174 37.81034598808797,-122.39761533547326 37.81034598808797,-122.39761533547326 37.79162804294824,-122.41967382241174 37.79162804294824,-122.41967382241174 37.81034598808797))
// Napoli, multi polygon (https://www.openstreetmap.org/relation/8955771)
//new BoundingBox(14.364430059744153, 14.365218629194532, 40.78433307340424, 40.785023575175295);
string WKT_AIX_FULL = "POLYGON((5.402291662243135 43.565714431347274,5.48056925013376 43.565714431347274,5.48056925013376 43.50797300081391,5.402291662243135 43.50797300081391,5.402291662243135 43.565714431347274))";
string WKT_AIX_WITHTERRAIN = "POLYGON((5.440657648511835 43.55957815383877,5.444434198804804 43.55957815383877,5.444434198804804 43.5579454365131,5.440657648511835 43.5579454365131,5.440657648511835 43.55957815383877))";
string WKT_AIX_SMALLOSMBUG = "POLYGON((5.441805234256467 43.55910060792738,5.442684998813352 43.55910060792738,5.442684998813352 43.55877017799191,5.441805234256467 43.55877017799191,5.441805234256467 43.55910060792738))";
string WKT_MONACO = "POLYGON((7.392147587957001 43.75577569838535,7.4410710803886415 43.75577569838535,7.4410710803886415 43.71757458493263,7.392147587957001 43.71757458493263,7.392147587957001 43.75577569838535))";
string WKT_MONACO_DEBUG = "POLYGON((7.421709439122424 43.73663530909531,7.433961769902453 43.73663530909531,7.433961769902453 43.733007331111345,7.421709439122424 43.733007331111345,7.421709439122424 43.73663530909531))";//"POLYGON((7.426780270757294 43.73870913810349,7.432520198049164 43.73870913810349,7.432520198049164 43.73501926928533,7.426780270757294 43.73501926928533,7.426780270757294 43.73870913810349))";
string WKT_HK = "POLYGON((114.13119740014092 22.360520982593926,114.21050495629326 22.360520982593926,114.21050495629326 22.28874575980822,114.13119740014092 22.28874575980822,114.13119740014092 22.360520982593926))";
string WKT_FRISCO = "POLYGON((-122.5235839391063 37.81433638393927,-122.36222224477036 37.81433638393927,-122.36222224477036 37.71228516909579,-122.5235839391063 37.71228516909579,-122.5235839391063 37.81433638393927))";
string WKT_DEFENSE = "POLYGON((2.222075572216413 48.902615468120246,2.3024130966304757 48.902615468120246,2.3024130966304757 48.86355756505397,2.222075572216413 48.86355756505397,2.222075572216413 48.902615468120246))";
DEMDataSet dataset = DEMDataSet.NASADEM;
var name = nameof(WKT_DEFENSE);
var bbox = GeometryService.GetBoundingBox(WKT_DEFENSE);
bool computeElevations = true;
ModelRoot model = _gltfService.CreateNewModel();
bool withTerrain = false;
if (withTerrain)
{
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
var transform = new ModelGenerationTransform(bbox, Reprojection.SRID_PROJECTED_MERCATOR, centerOnOrigin: true, ZScale, centerOnZOrigin: true);
heightMap = transform.TransformHeightMap(heightMap);
TileRange tiles = _imageryService.DownloadTiles(bbox, ImageryProvider.MapBoxSatellite, 15);
string fileName = Path.Combine(outputDir, "Texture.jpg");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
var pbrTexture = PBRTexture.Create(texInfo, null);
model = _osmProcessor.Run(model, OsmLayer.Buildings | OsmLayer.Highways, bbox, transform, computeElevations, dataset, downloadMissingFiles: true);
model = _gltfService.AddTerrainMesh(model, heightMap, pbrTexture);
}
else
{
var transform = new ModelGenerationTransform(bbox, Reprojection.SRID_PROJECTED_MERCATOR, centerOnOrigin: true, ZScale, centerOnZOrigin: true);
model = _osmProcessor.Run(model, OsmLayer.Buildings | OsmLayer.Highways, bbox, transform, computeElevations, dataset, downloadMissingFiles: true);
}
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), name + ".glb"));
}
/// <summary>
/// Generates a VisualTopo file 3D model
/// </summary>
/// <remarks>LT* (Lambert Carto) projections are not supported and could produce imprecise results (shifted by +10meters)</remarks>
/// <param name="vtopoFile">VisualTopo .TRO file</param>
/// <param name="imageryProvider">Imagery provider for terrain texture. Set to null for untextured model</param>
/// <param name="bboxMarginMeters">Terrain margin (meters) around VisualTopo model</param>
public void Run_3DModelGeneration(string vtopoFile, ImageryProvider imageryProvider, float bboxMarginMeters = 1000, bool generateTopoOnlyModel = false, float zFactor = 1f)
{
try
{
//=======================
// Generation params
//
int outputSRID = 3857; // Output SRID
float lineWidth = 1.0F; // Topo lines width (meters)
var dataset = DEMDataSet.AW3D30; // DEM dataset for terrain and elevation
int TEXTURE_TILES = 8; // Texture quality (number of tiles for bigger side) 4: med, 8: high, 12: ultra
string outputDir = Directory.GetCurrentDirectory();
bool GENERATE_LINE3D = false;
//=======================
// Open and parse file
//
// model will have available properties
// => Graph (nodes/arcs)
// => BoundingBox
// => Topology3D -> list of point-to-point lines
// => SRID of model file
StopwatchLog timeLog = StopwatchLog.StartNew(_logger);
VisualTopoModel model = _visualTopoService.LoadFile(vtopoFile, Encoding.GetEncoding("ISO-8859-1")
, decimalDegrees: true
, ignoreRadialBeams: true
, zFactor);
timeLog.LogTime($"Loading {vtopoFile} model file");
// for debug,
//var b = GetBranches(model); // graph list of all nodes
//var lowestPoint = model.Sets.Min(s => s.Data.Min(d => d.GlobalGeoPoint?.Elevation ?? 0));
BoundingBox bbox = model.BoundingBox // relative coords
.Translate(model.EntryPoint.Longitude, model.EntryPoint.Latitude, model.EntryPoint.Elevation ?? 0) // absolute coords
.Pad(bboxMarginMeters) // margin around model
.ReprojectTo(model.SRID, dataset.SRID); // DEM coords
// Get height map
// Note that ref Bbox means that the bbox will be adjusted to match DEM data
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset, downloadMissingFiles: true);
var bboxTerrainSpace = bbox.ReprojectTo(dataset.SRID, outputSRID); // terrain coords
timeLog.LogTime("Terrain height map");
//=======================
// Get entry elevation (need to reproject to DEM coordinate system first)
// and sections entry elevations
//
_visualTopoService.ComputeFullCavityElevations(model, dataset, zFactor); // will add TerrainElevationAbove and entry elevations
_visualTopoService.Create3DTriangulation(model);
timeLog.LogTime("Cavity points elevation");
// Model origin
GeoPoint axisOriginWorldSpace = model.EntryPoint.ReprojectTo(model.SRID, outputSRID)
.CenterOnOrigin(bboxTerrainSpace);
Vector3 axisOriginModelSpace = model.EntryPoint.AsVector3();
//=======================
// Local transform function from model coordinates (relative to entry, in meters)
// and global coordinates absolute in final 3D model space
//
IEnumerable <GeoPoint> TransformLine(IEnumerable <GeoPoint> line)
{
var newLine = line.Translate(model.EntryPoint) // Translate to entry (=> global topo coord space)
.ReprojectTo(model.SRID, outputSRID) // Reproject to terrain coord space
.CenterOnOrigin(bboxTerrainSpace) // Center on terrain space origin
.CenterOnOrigin(axisOriginWorldSpace);
return(newLine);
};
//=======================
// 3D model
//
var gltfModel = _gltfService.CreateNewModel();
// Add X/Y/Z axis on entry point
var axis = _meshService.CreateAxis();
_gltfService.AddMesh(gltfModel, "Axis", axis, doubleSided: false);
int i = 0;
var triangulation = model.TriangulationFull3D.Clone()
.Translate(axisOriginModelSpace) // already zScaled if zFactor > 1
.ReprojectTo(model.SRID, outputSRID)
.CenterOnOrigin(bboxTerrainSpace)
.CenterOnOrigin(axisOriginWorldSpace.AsVector3());
gltfModel = _gltfService.AddMesh(gltfModel, "Cavite3D", model.TriangulationFull3D, VectorsExtensions.CreateColor(0, 255, 0), doubleSided: false);
if (GENERATE_LINE3D)
{
foreach (var line in model.Topology3D) // model.Topology3D is the graph of topo paths
{
// Add line to model
gltfModel = _gltfService.AddLine(gltfModel
, string.Concat("GPX", i++) // name of 3D node
, TransformLine(line) // call transform function
, color: VectorsExtensions.CreateColor(255, 0, 0, 128)
, lineWidth);
}
}
timeLog.LogTime("Topo 3D model");
//axis = _meshService.CreateAxis(10,100);
//_gltfService.AddMesh(gltfModel, "Axis", axis, doubleSided: false);
if (generateTopoOnlyModel)
{
// Uncomment this to save 3D model for topo only (without terrain)
gltfModel.SaveGLB(string.Concat(Path.GetFileNameWithoutExtension(vtopoFile) + $"Z{zFactor}_TopoOnly.glb"));
}
// Reproject and center height map coordinates
heightMap = heightMap.ReprojectTo(dataset.SRID, outputSRID)
.CenterOnOrigin(bboxTerrainSpace)
.ZScale(zFactor)
.CenterOnOrigin(axisOriginWorldSpace);
//.BakeCoordinates();
timeLog.LogTime("Height map transform");
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (imageryProvider != null)
{
TileRange tiles = _imageryService.DownloadTiles(bbox, imageryProvider, TEXTURE_TILES);
string fileName = Path.Combine(outputDir, "Texture.jpg");
timeLog.LogTime("Imagery download");
Console.WriteLine("Construct texture...");
//TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
var topoTexture = model.Topology3D.SelectMany(l => l).Translate(model.EntryPoint).ReprojectTo(model.SRID, 4326);
TextureInfo texInfo = _imageryService.ConstructTextureWithGpxTrack(tiles, bbox, fileName, TextureImageFormat.image_jpeg
, topoTexture, false);
pbrTexture = PBRTexture.Create(texInfo, null);
timeLog.LogTime("Texture creation");
}
//
//=======================
// Triangulate height map
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
gltfModel = _gltfService.AddTerrainMesh(gltfModel, heightMap, pbrTexture);
gltfModel.SaveGLB(string.Concat(Path.GetFileNameWithoutExtension(vtopoFile) + $"Z{zFactor}.glb"));
timeLog.LogTime("3D model");
}
catch (Exception ex)
{
_logger.LogError("Error :" + ex.Message);
}
}
private Location3DModelResponse Generate3DLocationModel(Location3DModelRequest request, Location3DModelSettings settings)
{
Location3DModelResponse response = new Location3DModelResponse();
try
{
bool imageryFailed = false;
using (TimeSpanBlock timer = new TimeSpanBlock($"3D model {request.Id}", _logger))
{
BoundingBox bbox = GetBoundingBoxAroundLocation(request.Latitude, request.Longitude, settings.SideSizeKm);
HeightMap hMap = _elevationService.GetHeightMap(ref bbox, settings.Dataset);
var transform = new ModelGenerationTransform(bbox, Reprojection.SRID_PROJECTED_MERCATOR, centerOnOrigin: true, settings.ZScale, centerOnZOrigin: true);
response.Attributions.AddRange(settings.Attributions); // will be added to the model
response.Attributions.Add(settings.Dataset.Attribution); // will be added to the model
PBRTexture pbrTexture = null;
if (settings.ImageryProvider != null)
{
response.Attributions.Add(settings.ImageryProvider.Attribution); // will be added to the model
// Imagery
TileRange tiles = _imageryService.ComputeBoundingBoxTileRange(bbox, settings.ImageryProvider, settings.MinTilesPerImage);
Debug.Assert(tiles.Count < 400);
tiles = _imageryService.DownloadTiles(tiles, settings.ImageryProvider);
string fileName = Path.Combine(settings.OutputDirectory, $"{request.Id}_Texture.jpg");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
transform.BoundingBox = bbox;
hMap = transform.TransformHeightMap(hMap);
//var normalMap = _imageryService.GenerateNormalMap(hMap, settings.OutputDirectory, $"{request.Id}_normalmap.png");
pbrTexture = PBRTexture.Create(texInfo);
}
// Center on origin
//hMap = hMap.CenterOnOrigin(out Matrix4x4 transform).BakeCoordinates();
//response.Origin = new GeoPoint(request.Latitude, request.Longitude).ReprojectTo(Reprojection.SRID_GEODETIC, Reprojection.SRID_PROJECTED_MERCATOR);
ModelRoot model = _gltfService.CreateNewModel();
//=======================
// Buildings
if (settings.OsmBuildings)
{
model = _sampleOsmProcessor.Run(model, OsmLayer.Buildings, bbox, transform, computeElevations: true, settings.Dataset, settings.DownloadMissingFiles);
}
if (settings.GenerateTIN)
{
model = AddTINMesh(model, hMap, 2d, _gltfService, pbrTexture, Reprojection.SRID_PROJECTED_MERCATOR);
}
else
{
model = _gltfService.AddTerrainMesh(model, hMap, pbrTexture);
}
model.Asset.Generator = "DEM Net Elevation API with SharpGLTF";
//model.TryUseExtrasAsList(true).AddRange(response.Attributions);
model.SaveGLB(Path.Combine(settings.OutputDirectory, string.Concat(imageryFailed ? "imageryFailed_" : "", settings.ModelFileNameGenerator(settings, request))));
// cleanup
//if (pbrTexture != null)
//{
// if (pbrTexture.NormalTexture != null) File.Delete(pbrTexture.NormalTexture.FilePath);
// File.Delete(pbrTexture.BaseColorTexture.FilePath);
//}
response.Elapsed = timer.Elapsed;
response.NumTiles = pbrTexture.BaseColorTexture.TileCount;
}
}
catch (Exception)
{
throw;
}
return(response);
}