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"));
}
public ModelRoot AddTerrainMesh(ModelRoot model, HeightMap heightMap, PBRTexture textures)
{
Triangulation triangulation = _meshService.TriangulateHeightMap(heightMap);
model = AddTerrainMesh(model, triangulation, textures);
triangulation = null;
return(model);
}
public ModelRoot AddTerrainMesh(ModelRoot model, HeightMap heightMap, PBRTexture textures, float reduceFactor)
{
Triangulation triangulation = _meshService.TriangulateHeightMap(heightMap);
triangulation = reduceFactor < 1f ? _meshReducer.Decimate(triangulation, reduceFactor) : triangulation;
model = AddTerrainMesh(model, triangulation, textures);
triangulation = null;
return(model);
}
public void Run()
{
try
{
DEMDataSet dataset = DEMDataSet.AW3D30;
ImageryProvider imageryProvider = ImageryProvider.MapBoxSatellite;
Stopwatch sw = Stopwatch.StartNew();
string modelName = $"Montagne Sainte Victoire {dataset.Name}";
string outputDir = Directory.GetCurrentDirectory();
// You can get your boox from https://geojson.net/ (save as WKT)
string bboxWKT = "POLYGON((5.54888 43.519525, 5.61209 43.519525, 5.61209 43.565225, 5.54888 43.565225, 5.54888 43.519525))";
_logger.LogInformation($"Processing model {modelName}...");
_logger.LogInformation($"Getting bounding box geometry...");
var bbox = GeometryService.GetBoundingBox(bboxWKT);
_logger.LogInformation($"Getting height map data...");
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
_logger.LogInformation($"Processing height map data ({heightMap.Count} coordinates)...");
heightMap = heightMap
.ReprojectGeodeticToCartesian() // Reproject to 3857 (useful to get coordinates in meters)
.ZScale(2f) // Elevation exageration
.CenterOnOrigin();
TileRange tiles = _imageryService.DownloadTiles(bbox, imageryProvider, 8);
var texture = _imageryService.ConstructTexture(tiles, bbox, Path.Combine(outputDir, modelName + "_texture.jpg"), TextureImageFormat.image_jpeg);
var normalMap = _imageryService.GenerateNormalMap(heightMap, outputDir, modelName + "_normalmap.png");
var pbrTexture = PBRTexture.Create(texture, normalMap);
// Triangulate height map
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
var model = _sharpGltfService.CreateTerrainMesh(heightMap, pbrTexture);
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + ".glb"));
_logger.LogInformation($"Done in {sw.Elapsed:g}");
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
public ModelRoot GenerateTriangleMesh(List <GeoPoint> points, List <int> indices, PBRTexture textures)
{
Triangulation triangulation = new Triangulation(points, indices);
return(CreateTerrainMesh(triangulation, textures));
}
public ModelRoot AddTerrainMesh(ModelRoot model, Triangulation triangulation, PBRTexture textures, bool doubleSided = true)
{
var indexedTriangulation = new IndexedTriangulation(triangulation);
var normals = _meshService.ComputeMeshNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
return(AddMesh(model, TERRAIN_NODE_NAME, indexedTriangulation, normals, textures, doubleSided));
}
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 MeshPrimitive GenerateTriangleMesh(List <Vector3> positions, List <int> indices, IEnumerable <Vector4> colors = null, PBRTexture texture = null)
{
MeshPrimitive mesh = null;
try
{
if (positions == null || !positions.Any())
{
_logger?.LogWarning("Vertex list is empty.");
}
else
{
if (colors == null)
{
colors = positions.Select(pt => Vector4.One);
}
// Basic mesh declaration
mesh = new MeshPrimitive()
{
Colors = colors
,
ColorComponentType = MeshPrimitive.ColorComponentTypeEnum.FLOAT
,
ColorType = MeshPrimitive.ColorTypeEnum.VEC3
,
Mode = MeshPrimitive.ModeEnum.TRIANGLES
,
Positions = positions
,
Material = new Material()
{
DoubleSided = true
}
,
Indices = indices
};
//The number of the vertices
int nV = positions.Count;
//The number of the triangles
int nT = indices.Count / 3;
Vector3[] norm = new Vector3[nV]; //Array for the normals
//Scan all the triangles. For each triangle add its
//normal to norm's vectors of triangle's vertices
Vector3 min = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
Vector3 max = new Vector3(float.MinValue, float.MinValue, float.MinValue);
for (int t = 0; t < nT; t++)
{
//Get indices of the triangle t
int i1 = indices[3 * t];
int i2 = indices[3 * t + 1];
int i3 = indices[3 * t + 2];
//Get vertices of the triangle
Vector3 v1 = positions[i1];
Vector3 v2 = positions[i2];
Vector3 v3 = positions[i3];
//Compute the triangle's normal
Vector3 dir = Vector3.Normalize(Vector3.Cross(v2 - v1, v3 - v1));
//Accumulate it to norm array for i1, i2, i3
norm[i1] += dir;
norm[i2] += dir;
norm[i3] += dir;
}
for (int i = 0; i < nV; i++)
{
//Normalize the normal's length
norm[i] = Vector3.Normalize(norm[i]);
// Calculate bounds of UV mapping
Vector3 pos = positions[i];
// for UV coords
min.X = Math.Min(pos.X, min.X);
min.Y = Math.Min(pos.Y, min.Y);
min.Z = Math.Min(pos.Z, min.Z);
max.X = Math.Max(pos.X, max.X);
max.Y = Math.Max(pos.Y, max.Y);
max.Z = Math.Max(pos.Z, max.Z);
}
mesh.Normals = norm;
if (texture != null)
{
mesh.TextureCoordsComponentType = MeshPrimitive.TextureCoordsComponentTypeEnum.FLOAT;
if (texture.TextureCoordSets == null)
{
mesh.TextureCoordSets = Enumerable.Range(0, 1).Select(i => positions.Select(pos => new Vector2(
MathHelper.Map(min.X, max.X, 0, 1, pos.X, true)
, MathHelper.Map(min.Z, max.Z, 0, 1, pos.Z, true)
)));
}
else
{
mesh.TextureCoordSets = Enumerable.Range(0, 1).Select(i => texture.TextureCoordSets);
}
mesh.Material.MetallicRoughnessMaterial = new PbrMetallicRoughness()
{
BaseColorFactor = Vector4.One,
BaseColorTexture = GetTextureFromImage(texture.BaseColorTexture.FilePath),
MetallicFactor = 0,
RoughnessFactor = 1
};
if (texture.NormalTexture != null)
{
mesh.Material.NormalTexture = GetTextureFromImage(texture.NormalTexture.FilePath);
}
}
}
}
catch (Exception ex)
{
_logger?.LogError(ex, ex.ToString());
throw;
}
return(mesh);
}
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);
}
}
public void Run(DEMDataSet dataset, bool withTexture = true)
{
try
{
//_rasterService.GenerateDirectoryMetadata(dataset, false);
Stopwatch sw = Stopwatch.StartNew();
string modelName = $"Montagne Sainte Victoire {dataset.Name}";
string outputDir = Directory.GetCurrentDirectory();
ImageryProvider provider = ImageryProvider.MapBoxSatelliteStreet;// new TileDebugProvider(new GeoPoint(43.5,5.5));
// You can get your boox from https://geojson.net/ (save as WKT)
string bboxWKT = "POLYGON((5.54888 43.519525, 5.61209 43.519525, 5.61209 43.565225, 5.54888 43.565225, 5.54888 43.519525))";
// string bboxWKT =
// "POLYGON((5.594457381483949 43.545276557046044,5.652135604140199 43.545276557046044,5.652135604140199 43.52038635099936,5.594457381483949 43.52038635099936,5.594457381483949 43.545276557046044))";
// _logger.LogInformation($"Processing model {modelName}...");
//
//
// _logger.LogInformation($"Getting bounding box geometry...");
var bbox = GeometryService.GetBoundingBox(bboxWKT);
//var bbox = new BoundingBox(5.5613898348431485,5.597185285307553,43.49372969433046,43.50939068558466);
_logger.LogInformation($"Getting height map data...");
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
_logger.LogInformation($"Processing height map data ({heightMap.Count} coordinates)...");
heightMap = heightMap
.ReprojectGeodeticToCartesian() // Reproject to 3857 (useful to get coordinates in meters)
.ZScale(2f); // Elevation exageration
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (withTexture)
{
Console.WriteLine("Download image tiles...");
TileRange tiles = _imageryService.DownloadTiles(bbox, provider, TEXTURE_TILES);
string fileName = Path.Combine(outputDir, "Texture.jpg");
Console.WriteLine("Construct texture...");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
//float Z_FACTOR = 0.00002f;
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
var normalMap = _imageryService.GenerateNormalMap(heightMap, outputDir);
pbrTexture = PBRTexture.Create(texInfo, normalMap);
//hMap = hMap.CenterOnOrigin(Z_FACTOR);
//
//=======================
}
// Triangulate height map
// and add base and sides
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
var model = _sharpGltfService.CreateTerrainMesh(heightMap, pbrTexture);
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + ".glb"));
model = _sharpGltfService.CreateTerrainMesh(heightMap, GenOptions.Normals | GenOptions.BoxedBaseElevationMin);
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + "_normalsBox.glb"));
_logger.LogInformation($"Model exported as {Path.Combine(Directory.GetCurrentDirectory(), modelName + ".gltf")} and .glb");
_logger.LogInformation($"Done in {sw.Elapsed:g}");
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
public void Run(DEMDataSet dataset, bool withTexture = true)
{
try
{
int TEXTURE_TILES = 4; // 4: med, 8: high
//_rasterService.GenerateDirectoryMetadata(dataset, false);
Stopwatch sw = Stopwatch.StartNew();
string modelName = $"MontBlanc_{dataset.Name}";
string outputDir = Directory.GetCurrentDirectory();
ImageryProvider provider = ImageryProvider.EsriWorldImagery;// new TileDebugProvider(new GeoPoint(43.5,5.5));
//// You can get your boox from https://geojson.net/ (save as WKT)
//string bboxWKT = "POLYGON((5.54888 43.519525, 5.61209 43.519525, 5.61209 43.565225, 5.54888 43.565225, 5.54888 43.519525))";
//// string bboxWKT =
//// "POLYGON((5.594457381483949 43.545276557046044,5.652135604140199 43.545276557046044,5.652135604140199 43.52038635099936,5.594457381483949 43.52038635099936,5.594457381483949 43.545276557046044))";
//// _logger.LogInformation($"Processing model {modelName}...");
////
////
//// _logger.LogInformation($"Getting bounding box geometry...");
//var bbox = GeometryService.GetBoundingBox(bboxWKT);
// DjebelMarra
var bbox = new BoundingBox(24.098067346557492, 24.42468219234563, 12.7769822830208, 13.087504129660111);
// MontBlanc
//var bbox = GeometryService.GetBoundingBox("POLYGON((6.618804355541963 45.9658287141746,7.052764316479463 45.9658287141746,7.052764316479463 45.72379929776474,6.618804355541963 45.72379929776474,6.618804355541963 45.9658287141746))");
//var bbox = new BoundingBox(5.5613898348431485,5.597185285307553,43.49372969433046,43.50939068558466);
_logger.LogInformation($"Getting height map data...");
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
ModelGenerationTransform transform = new ModelGenerationTransform(bbox, 3857, true, 1.5f, true);
_logger.LogInformation($"Processing height map data ({heightMap.Count} coordinates)...");
heightMap = transform.TransformHeightMap(heightMap);
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (withTexture)
{
Console.WriteLine("Download image tiles...");
TileRange tiles = _imageryService.DownloadTiles(bbox, provider, TEXTURE_TILES);
string fileName = Path.Combine(outputDir, "Texture.jpg");
Console.WriteLine("Construct texture...");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
//float Z_FACTOR = 0.00002f;
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
var normalMap = _imageryService.GenerateNormalMap(heightMap, outputDir);
pbrTexture = PBRTexture.Create(texInfo, normalMap);
//hMap = hMap.CenterOnOrigin(Z_FACTOR);
//
//=======================
}
// Triangulate height map
// and add base and sides
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
var model = _sharpGltfService.CreateTerrainMesh(heightMap, pbrTexture);
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + ".glb"));
model.SaveAsWavefront(Path.Combine(Directory.GetCurrentDirectory(), modelName + ".obj"));
model = _sharpGltfService.CreateTerrainMesh(heightMap, GenOptions.Normals | GenOptions.BoxedBaseElevationMin);
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + "_normalsBox.glb"));
model.SaveAsWavefront(Path.Combine(Directory.GetCurrentDirectory(), modelName + "_normalsBox.obj"));
_logger.LogInformation($"Model exported as {Path.Combine(Directory.GetCurrentDirectory(), modelName + ".gltf")} and .glb");
_logger.LogInformation($"Done in {sw.Elapsed:g}");
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
}
}
public ModelRoot AddTerrainMesh(ModelRoot model, Triangulation triangulation, PBRTexture textures)
{
// create a basic scene
model = model ?? CreateNewModel();
var rnode = model.LogicalScenes.First()?.FindNode(n => n.Name == TERRAIN_NODE_NAME);
var rmesh = rnode.Mesh = FindOrCreateMesh(model, TERRAIN_MESH_NAME);
var material = model.CreateMaterial("Default")
.WithPBRMetallicRoughness(Vector4.One, textures?.BaseColorTexture?.FilePath, null, 0, 1)
.WithDoubleSide(true);
if (textures != null && textures.NormalTexture != null)
{
material.WithChannelTexture("NORMAL", 0, textures.NormalTexture.FilePath);
}
var indexedTriangulation = new IndexedTriangulation(triangulation);
var normals = _meshService.ComputeNormals(indexedTriangulation.Positions, indexedTriangulation.Indices);
// create mesh primitive
var primitive = rmesh.CreatePrimitive()
.WithVertexAccessor("POSITION", indexedTriangulation.Positions)
.WithVertexAccessor("NORMAL", normals.ToList())
.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
if (textures != null && textures.TextureCoordSets == null)
{
(Vector3 Min, Vector3 Max)coordBounds = CalculateBounds(indexedTriangulation.Positions);
textures.TextureCoordSets = indexedTriangulation.Positions.Select(pos => new Vector2(
MathHelper.Map(coordBounds.Min.X, coordBounds.Max.X, 0, 1, pos.X, true)
, MathHelper.Map(coordBounds.Min.Z, coordBounds.Max.Z, 0, 1, pos.Z, true)
));
primitive = primitive
.WithVertexAccessor("TEXCOORD_0", textures.TextureCoordSets.ToList());
}
primitive = primitive.WithMaterial(material);
return(model);
}
public ModelRoot CreateTerrainMesh(Triangulation triangulation, PBRTexture textures)
{
return(AddTerrainMesh(CreateNewModel(), triangulation, textures));
}
/// <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) + $"Z{zFactor}.glb"));
timeLog.LogTime("3D model");
}
catch (Exception ex)
{
_logger.LogError("Error :" + ex.Message);
}
}
private (ModelRoot Model, double widthMeters, double heightMeters, double averageElevation, BoundingBox projectedBbox) GenerateSampleModel(BoundingBox bbox, DEMDataSet dataset, bool withTexture = true)
{
try
{
int TEXTURE_TILES = 8; // 4: med, 8: high
string outputDir = Directory.GetCurrentDirectory();
//_rasterService.GenerateDirectoryMetadata(dataset, false);
ImageryProvider provider = ImageryProvider.MapBoxSatellite;// new TileDebugProvider(new GeoPoint(43.5,5.5));
_logger.LogInformation($"Getting height map data...");
var heightMap = _elevationService.GetHeightMap(ref bbox, dataset);
var wgs84bbox = bbox;
ModelGenerationTransform transform = new ModelGenerationTransform(bbox, 3857, true, 1.5f, true);
_logger.LogInformation($"Processing height map data ({heightMap.Count} coordinates)...");
heightMap = transform.TransformHeightMap(heightMap);
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (withTexture)
{
Console.WriteLine("Download image tiles...");
TileRange tiles = _imageryService.DownloadTiles(bbox, provider, TEXTURE_TILES);
string fileName = Path.Combine(outputDir, "Texture.jpg");
Console.WriteLine("Construct texture...");
TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
//float Z_FACTOR = 0.00002f;
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
//var normalMap = _imageryService.GenerateNormalMap(heightMap, outputDir);
pbrTexture = PBRTexture.Create(texInfo, null);
//hMap = hMap.CenterOnOrigin(Z_FACTOR);
//
//=======================
}
// Triangulate height map
// and add base and sides
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
var model = _sharpGltfService.CreateTerrainMesh(heightMap, pbrTexture);
var width = new GeoPoint(wgs84bbox.Center[1], bbox.Center[0] - bbox.Width / 2f).DistanceTo(new GeoPoint(wgs84bbox.Center[1], bbox.Center[0] + bbox.Width / 2f));
var height = new GeoPoint(bbox.Center[1] - bbox.Height / 2f, wgs84bbox.Center[0]).DistanceTo(new GeoPoint(bbox.Center[1] + bbox.Height, wgs84bbox.Center[0]));
return(model, width, height, wgs84bbox.Center[2], heightMap.BoundingBox);
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
return(null, 0, 0, 0, null);
}
}
public MeshPrimitive GenerateTriangleMesh(IEnumerable <GeoPoint> points, List <int> indices, IEnumerable <Vector4> colors = null, PBRTexture texture = null)
{
Stopwatch sw = null;
if ((_logger?.IsEnabled(LogLevel.Trace)).GetValueOrDefault(false))
{
sw = Stopwatch.StartNew();
_logger.LogTrace("Baking points...");
}
var pointsList = points.ToVector3().ToList();
MeshPrimitive mesh = GenerateTriangleMesh(pointsList, indices, colors, texture);
if ((_logger?.IsEnabled(LogLevel.Trace)).GetValueOrDefault(false))
{
sw.Stop();
_logger.LogTrace($"Baking points done in {sw.Elapsed:g}");
}
return(mesh);
}
public MeshPrimitive GenerateTriangleMesh(Triangulation triangulation, IEnumerable <Vector4> colors = null, PBRTexture texture = null)
{
return(GenerateTriangleMesh(triangulation.Positions, triangulation.Indices.ToList(), colors, texture));
}
public void GenerateModel(string bboxWkt, DEMDataSet litto3DDataset, ImageryProvider imageryProvider, float zFactor = 3f, bool withTexture = true, bool withboat = true, bool withWaterSurface = true, DEMDataSet fallbackDataset = null)
{
try
{
bool centerOnOrigin = true;
int TEXTURE_TILES = 20;
string outputDir = Directory.GetCurrentDirectory();
string modelName = $"{litto3DDataset.ResolutionMeters}m_z{zFactor}_{imageryProvider.Name}-{DateTime.Now:yyyyMMdd-hhmmss}";
_logger.LogInformation($"Getting height map data...");
var bbox = GeometryService.GetBoundingBox(bboxWkt).ReprojectTo(4326, litto3DDataset.SRID);
var heightMap = _elevationService.GetHeightMap(ref bbox, litto3DDataset);
heightMap = heightMap.BakeCoordinates();
var nullCoordsEnumerator = heightMap.Coordinates.Where(c => (c.Elevation ?? litto3DDataset.NoDataValue) == litto3DDataset.NoDataValue);
var interpolator = _elevationService.GetInterpolator(InterpolationMode.Bilinear);
using (IRasterFile raster = _rasterService.OpenFile(@"D:\Data\ELEVATION_DO_NOT_DELETE\GEBCO2020\cote azur\gebco_2020_subset.tif", DEMFileType.GEOTIFF))
using (RasterFileDictionary dic = new RasterFileDictionary())
{
var metadata = raster.ParseMetaData(fallbackDataset.FileFormat);
dic.Add(metadata, raster);
foreach (var pt in nullCoordsEnumerator)
{
var proj = pt.ReprojectTo(litto3DDataset.SRID, fallbackDataset.SRID);
pt.Elevation = _elevationService.GetElevationAtPoint(raster, dic, metadata, proj.Latitude, proj.Longitude, 0, interpolator, NoDataBehavior.UseNoDataDefinedInDem);
}
}
var nullCoords = heightMap.Coordinates.Where(c => (c.Elevation ?? litto3DDataset.NoDataValue) == litto3DDataset.NoDataValue).ToList();
var nullCoordsFallbackProj = nullCoords.ReprojectTo(litto3DDataset.SRID, fallbackDataset.SRID, nullCoords.Count);
var nullCoordsFallbackProj2 = _elevationService.GetPointsElevation(nullCoordsFallbackProj, fallbackDataset, InterpolationMode.Bilinear, NoDataBehavior.UseNoDataDefinedInDem);
ModelGenerationTransform transform = new ModelGenerationTransform(bbox, 3857, centerOnOrigin: centerOnOrigin, zFactor, centerOnZOrigin: false);
ModelGenerationTransform transformFrom4326 = new ModelGenerationTransform(bbox.ReprojectTo(2154, 4326), 3857, centerOnOrigin: centerOnOrigin, zFactor, centerOnZOrigin: false);
_logger.LogInformation($"Processing height map data ({heightMap.Count} coordinates)...");
heightMap = transform.TransformHeightMap(heightMap);
var min = heightMap.Coordinates.Where(g => (g.Elevation ?? 0d) > litto3DDataset.NoDataValue).Min(g => g.Elevation ?? 0d);
heightMap.Coordinates = heightMap.Coordinates.Select(p =>
{
if (p.Elevation.GetValueOrDefault(0) <= litto3DDataset.NoDataValue)
{
p.Elevation = min;
}
return(p);
});
//=======================
// Textures
//
PBRTexture pbrTexture = null;
if (withTexture)
{
var bbox4326 = bbox.ReprojectTo(2154, 4326);
Console.WriteLine("Download image tiles...");
TileRange tiles = _imageryService.DownloadTiles(bbox4326, imageryProvider, TEXTURE_TILES);
string fileName = Path.Combine(outputDir, "Texture.jpg");
Console.WriteLine("Construct texture...");
//TextureInfo texInfo = _imageryService.ConstructTexture(tiles, bbox4326, fileName, TextureImageFormat.image_jpeg);
TextureInfo texInfo;
if (withboat)
{
var trackPoints = GetGeoPointFromGeoJson(BoatCourseGeoJson);
texInfo = _imageryService.ConstructTextureWithGpxTrack(tiles, bbox4326, fileName, TextureImageFormat.image_jpeg, trackPoints, drawGpxVertices: true, color: SixLabors.ImageSharp.PixelFormats.Rgba32.Green, 30);
}
else
{
texInfo = _imageryService.ConstructTexture(tiles, bbox4326, fileName, TextureImageFormat.image_jpeg);
}
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
//float Z_FACTOR = 0.00002f;
//hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
//var normalMap = _imageryService.GenerateNormalMap(heightMap, outputDir);
pbrTexture = PBRTexture.Create(texInfo, null);// normalMap);
//hMap = hMap.CenterOnOrigin(Z_FACTOR);
//
//=======================
}
// Triangulate height map
// and add base and sides
_logger.LogInformation($"Triangulating height map and generating 3D mesh...");
heightMap = heightMap.BakeCoordinates();
var coords = heightMap.Coordinates.ToList();
var model = _sharpGltfService.CreateTerrainMesh(heightMap, pbrTexture);
if (withWaterSurface)
{
var bottomLeft = coords[heightMap.Width * (heightMap.Height - 1)].AsVector3(); bottomLeft.Z = 0;
var topRight = coords[heightMap.Width - 1].AsVector3(); topRight.Z = 0;
var topLeft = coords[0].AsVector3(); topLeft.Z = 0;
var bottomRight = coords.Last().AsVector3(); bottomRight.Z = 0;
var waterSurface = _meshService.CreateWaterSurface(bottomLeft, topRight, topLeft, bottomRight,
minZ: (float)min,
color: VectorsExtensions.CreateColor(0, 150, 255, 64));
model = _sharpGltfService.AddMesh(model, "Water", waterSurface, doubleSided: true);
}
if (withboat)
{
var boatInitPos = centerOnOrigin ? new GeoPoint(0, 0).AsVector3() : new GeoPoint(43.010625204304304, 6.3711613671060086).ReprojectTo(4326, 3857).AsVector3();
var axis = _meshService.CreateAxis(2, 10, 3, 3).Translate(boatInitPos);
model = _sharpGltfService.AddMesh(model, "Boat", axis, doubleSided: false);
var boatCourse = transformFrom4326.TransformPoints(GetGeoPointFromGeoJson(BoatCourseGeoJson)).ToList(); //ReprojectGeodeticToCartesian().CenterOnOrigin().ToList();
model = _sharpGltfService.AddLine(model, "BoatCourse", boatCourse, VectorsExtensions.CreateColor(255, 0, 0, 128), 4);
}
model.SaveGLB(Path.Combine(Directory.GetCurrentDirectory(), modelName + ".glb"));
_logger.LogInformation($"Model exported as {Path.Combine(Directory.GetCurrentDirectory(), modelName + ".gltf")} and .glb");
//var point = new GeoPoint(43.01142119356318, 6.385200681010872).ReprojectTo(4326, 2154);
//point = _elevationService.GetPointElevation(point, litto3DDataset);
}
catch (Exception e)
{
_logger.LogError(e, e.Message);
}
}
public static ModelRoot GenerateTIN(HeightMap hMap, double precision, SharpGltfService gltf, PBRTexture textures, int srid)
{
return(TINGeneration.AddTINMesh(gltf.CreateNewModel(), hMap, precision, gltf, textures, srid));
}
IEnumerator AsyncLoader()
{
textureShader.SetTexture(1, ShaderIDs._VirtualMainTex, albedoTex);
textureShader.SetTexture(1, ShaderIDs._VirtualBumpMap, normalTex);
textureShader.SetTexture(1, ShaderIDs._VirtualSMO, smTex);
// textureShader.SetTexture(1, ShaderIDs._MaskTex, heightTex);
textureShader.SetTexture(2, ShaderIDs._VirtualMainTex, albedoTex);
textureShader.SetTexture(2, ShaderIDs._VirtualBumpMap, normalTex);
textureShader.SetTexture(2, ShaderIDs._VirtualSMO, smTex);
// textureShader.SetTexture(2, ShaderIDs._MaskTex, heightTex);
for (int i = 0; i < terrainData.textures.Length; ++i)
{
PBRTexture texs = terrainData.textures[i];
AsyncOperationHandle <Texture> albedoLoader = texs.albedoOccTex.LoadAssetAsync <Texture>();
AsyncOperationHandle <Texture> normalLoader = texs.normalTex.LoadAssetAsync <Texture>();
AsyncOperationHandle <Texture> smLoader = texs.SMTex.LoadAssetAsync <Texture>();
yield return(albedoLoader);
yield return(normalLoader);
yield return(smLoader);
const int disp = COLOR_RESOLUTION / 8;
textureShader.SetInt(ShaderIDs._OffsetIndex, i);
if (albedoLoader.Result && normalLoader.Result && smLoader.Result)
{
textureShader.SetTexture(1, ShaderIDs._TerrainMainTexArray, albedoLoader.Result);
textureShader.SetTexture(1, ShaderIDs._TerrainBumpMapArray, normalLoader.Result);
textureShader.SetTexture(1, ShaderIDs._TerrainSMTexArray, smLoader.Result);
textureShader.Dispatch(1, disp, disp, 1);
}
else
{
textureShader.Dispatch(2, disp, disp, 1);
}
texs.albedoOccTex.ReleaseAsset();
texs.normalTex.ReleaseAsset();
texs.SMTex.ReleaseAsset();
}
albedoTex.GenerateMips();
smTex.GenerateMips();
normalTex.GenerateMips();
// heightTex.GenerateMips();
CommandBuffer buffer = RenderPipeline.BeforeFrameBuffer;
Unity.Mathematics.Random r = new Unity.Mathematics.Random((uint)System.Guid.NewGuid().GetHashCode());
buffer.SetComputeTextureParam(textureShader, 6, ShaderIDs._DestTex, randomTileRT);
buffer.SetComputeVectorParam(textureShader, ShaderIDs._TextureSize, float4(float2(1.0 / 256), 1, 1));
buffer.SetComputeVectorParam(textureShader, ShaderIDs._RandomSeed, r.NextFloat4() + float4(0, 0, 0.5f, 0.5f));
buffer.DispatchCompute(textureShader, 6, 8, 8, 1);
while (enabled)
{
buffer = RenderPipeline.BeforeFrameBuffer;
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._NoiseTillingTexture, randomTileRT);
buffer.SetComputeBufferParam(textureShader, 0, ShaderIDs._MaterialBuffer, materialBuffer);
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._VirtualMainTex, vt.GetTexture(0));
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._VirtualBumpMap, vt.GetTexture(1));
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._VirtualSMO, vt.GetTexture(2));
// buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._HeightMap, heightTex);
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._MainTex, albedoTex);
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._BumpMap, normalTex);
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._SMMap, smTex);
buffer.SetComputeTextureParam(textureShader, 0, ShaderIDs._NoiseTexture, terrainData.noiseTex);
buffer.SetComputeIntParam(textureShader, ShaderIDs._HeightResolution, MASK_RESOLUTION);
int rtID = maskVT.GetTextureFormat(0).rtPropertyID;
buffer.SetComputeTextureParam(textureShader, 0, rtID, maskVT.GetTexture(0));
buffer.SetComputeTextureParam(textureShader, 0, maskVT.indexTexID, maskVT.indexTex);
buffer.SetComputeTextureParam(textureShader, 4, ShaderIDs._VirtualBumpMap, vt.GetTexture(1));
buffer.SetComputeTextureParam(textureShader, 3, ShaderIDs._IndexTexture, maskVT.indexTex);
buffer.SetComputeTextureParam(textureShader, 3, ShaderIDs._VirtualHeightmap, maskVT.GetTexture(1));
buffer.SetComputeTextureParam(textureShader, 3, ShaderIDs._DestTex, heightloadingCacheRT);
buffer.SetComputeTextureParam(textureShader, 4, ShaderIDs._SourceTex, heightloadingCacheRT);
buffer.SetComputeTextureParam(textureShader, 7, ShaderIDs._IndexTexture, maskVT.indexTex);
buffer.SetComputeTextureParam(textureShader, 7, ShaderIDs._VirtualHeightmap, maskVT.GetTexture(1));
buffer.SetComputeTextureParam(textureShader, 7, vt.GetTextureFormat(3).rtPropertyID, vt.GetTexture(3));
buffer.SetComputeIntParam(textureShader, ShaderIDs._ColorResolution, COLOR_RESOLUTION);
buffer.SetGlobalVector(ShaderIDs._HeightScaleOffset, (float4)double4(terrainData.heightScale, terrainData.heightOffset, 1, 1));
TerrainLoadData loadData;
MaskLoadCommand maskCommand;
int targetElement;
while (maskLoadList.TryDequeue(out maskCommand))
{
if (maskCommand.load)
{
int maskEle;
if (maskVT.LoadNewTexture(maskCommand.pos, 1, out maskEle))
{
VirtualTextureLoader.MaskBuffer maskLoadBuffer = maskLoader.ScheduleLoadingJob(maskCommand.pos);
VirtualTextureLoader.MaskBuffer heightLoadBuffer = heightLoader.ScheduleLoadingJob(maskCommand.pos);
loadingThread.Schedule();
const int frameSepar = (MASK_RESOLUTION / 2048) * (MASK_RESOLUTION / 2048);
yield return(maskLoader.ReadToTexture(maskVT.GetTexture(0), maskEle, maskLoadBuffer, frameSepar));
yield return(heightLoader.ReadToTexture(maskVT.GetTexture(1), maskEle, heightLoadBuffer, frameSepar * 2));
}
else
{
Debug.LogError("No Enough Mask Position!");
}
}
else
{
maskVT.UnloadTexture(maskCommand.pos);
}
}
int initializedListLength = initializeLoadList.Length;
if (initializedListLength > 0)
{
NativeArray <int> allTextureElements = new NativeArray <int>(initializedListLength, Allocator.Persistent);
for (int i = 0; i < initializedListLength; ++i)
{
if (initializeLoadList.TryDequeue(out loadData))
{
switch (loadData.ope)
{
case TerrainLoadData.Operator.Load:
bool elementAva = vt.LoadNewTexture(loadData.startIndex, loadData.size, out targetElement);
if (elementAva)
{
LoadTexture(loadData.startIndex, loadData.size, loadData.rootPos, loadData.maskScaleOffset, targetElement, RenderPipeline.BeforeFrameBuffer);
}
break;
}
initializeLoadList.Add(loadData);
}
}
int elementCount = 0;
while (initializeLoadList.TryDequeue(out loadData))
{
switch (loadData.ope)
{
case TerrainLoadData.Operator.Load:
targetElement = allTextureElements[elementCount];
elementCount++;
if (targetElement >= 0)
{
if (loadData.targetDecalLayer != 0)
{
DrawDecal(loadData.startIndex, loadData.size, targetElement, loadData.targetDecalLayer, loadData.rootPos);
yield return(null);
}
}
break;
}
}
allTextureElements.Dispose();
}
if (vt.LeftedTextureElement < leastVirtualTextureLefted)
{
leastVirtualTextureLefted = vt.LeftedTextureElement;
Debug.Log(leastVirtualTextureLefted);
}
if (loadDataList.TryDequeue(out loadData))
{
switch (loadData.ope)
{
case TerrainLoadData.Operator.Update:
targetElement = vt.GetChunkIndex(loadData.startIndex);
if (targetElement >= 0)
{
LoadTexture(loadData.startIndex, loadData.size, loadData.rootPos, loadData.maskScaleOffset, targetElement, RenderPipeline.BeforeFrameBuffer);
DrawDecal(loadData.startIndex, loadData.size, targetElement, loadData.targetDecalLayer, loadData.rootPos);
}
break;
case TerrainLoadData.Operator.Load:
bool elementAva = vt.LoadNewTexture(loadData.startIndex, loadData.size, out targetElement);
if (elementAva)
{
LoadTexture(loadData.startIndex, loadData.size, loadData.rootPos, loadData.maskScaleOffset, targetElement, RenderPipeline.BeforeFrameBuffer);
DrawDecal(loadData.startIndex, loadData.size, targetElement, loadData.targetDecalLayer, loadData.rootPos);
}
else
{
Debug.LogError("Virtual Texture No Capacity in loading " + textureCapacity);
}
yield return(null);
break;
case TerrainLoadData.Operator.Separate:
int subSize = loadData.size / 2;
int2 leftDownIndex = loadData.startIndex;
int2 leftUpIndex = loadData.startIndex + int2(0, subSize);
int2 rightDownIndex = loadData.startIndex + int2(subSize, 0);
int2 rightUpIndex = loadData.startIndex + subSize;
if (vt.LeftedTextureElement >= 3)
{
vt.LoadNewTextureChunks(loadData.startIndex, subSize, 2, vtContainer);
float subScale = loadData.maskScaleOffset.x;
float2 leftUpOffset = float2(loadData.maskScaleOffset.yz + float2(0, subScale));
float2 rightDownOffset = float2(loadData.maskScaleOffset.yz + float2(subScale, 0));
float2 rightUpOffset = float2(loadData.maskScaleOffset.yz + subScale);
float3 leftDownScaleOffset = loadData.maskScaleOffset;
float3 leftUpScaleOffset = float3(subScale, leftUpOffset);
float3 rightDownScaleOffset = float3(subScale, rightDownOffset);
float3 rightUpScaleOffset = float3(subScale, rightUpOffset);
LoadTexture(leftDownIndex, subSize, loadData.rootPos, leftDownScaleOffset, vtContainer[0], RenderPipeline.BeforeFrameBuffer);
LoadTexture(leftUpIndex, subSize, loadData.rootPos, leftUpScaleOffset, vtContainer[2], RenderPipeline.BeforeFrameBuffer);
LoadTexture(rightDownIndex, subSize, loadData.rootPos, rightDownScaleOffset, vtContainer[1], RenderPipeline.BeforeFrameBuffer);
LoadTexture(rightUpIndex, subSize, loadData.rootPos, rightUpScaleOffset, vtContainer[3], RenderPipeline.BeforeFrameBuffer);
DrawDecal(leftDownIndex, subSize, vtContainer[0], loadData.targetDecalLayer, loadData.rootPos);
DrawDecal(leftUpIndex, subSize, vtContainer[2], loadData.targetDecalLayer, loadData.rootPos);
DrawDecal(rightDownIndex, subSize, vtContainer[1], loadData.targetDecalLayer, loadData.rootPos);
DrawDecal(rightUpIndex, subSize, vtContainer[3], loadData.targetDecalLayer, loadData.rootPos);
}
else
{
Debug.LogError("Virtual Texture No Capacity in separate " + textureCapacity + " " + vt.LeftedTextureElement);
}
yield return(null);
break;
case TerrainLoadData.Operator.Unload:
vt.UnloadTexture(loadData.startIndex);
break;
case TerrainLoadData.Operator.Combine:
subSize = loadData.size / 2;
leftDownIndex = loadData.startIndex;
leftUpIndex = loadData.startIndex + int2(0, subSize);
rightDownIndex = loadData.startIndex + int2(subSize, 0);
rightUpIndex = loadData.startIndex + subSize;
targetElement = vt.CombineQuadTextures(leftDownIndex, rightDownIndex, leftUpIndex, rightUpIndex, leftDownIndex, loadData.size, RenderPipeline.BeforeFrameBuffer);
GenerateMips(targetElement, RenderPipeline.BeforeFrameBuffer);
yield return(null);
break;
}
}
else
{
yield return(null);
}
}
}
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);
}
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"));
}
public ModelRoot CreateTerrainMesh(HeightMap heightMap, PBRTexture textures, float reduceFactor)
{
return(AddTerrainMesh(CreateNewModel(), heightMap, textures, reduceFactor));
}
IEnumerator AsyncLoader()
{
textureShader.SetTexture(1, ShaderIDs._VirtualMainTex, albedoTex);
textureShader.SetTexture(1, ShaderIDs._VirtualBumpMap, normalTex);
textureShader.SetTexture(1, ShaderIDs._VirtualSMO, smTex);
textureShader.SetTexture(2, ShaderIDs._VirtualMainTex, albedoTex);
textureShader.SetTexture(2, ShaderIDs._VirtualBumpMap, normalTex);
textureShader.SetTexture(2, ShaderIDs._VirtualSMO, smTex);
for (int i = 0; i < terrainData.textures.Length; ++i)
{
PBRTexture texs = terrainData.textures[i];
AsyncOperationHandle <Texture> albedoLoader = texs.albedoOccTex.LoadAssetAsync <Texture>();
AsyncOperationHandle <Texture> normalLoader = texs.normalTex.LoadAssetAsync <Texture>();
AsyncOperationHandle <Texture> smLoader = texs.SMTex.LoadAssetAsync <Texture>();
yield return(albedoLoader);
yield return(normalLoader);
yield return(smLoader);
const int disp = COLOR_RESOLUTION / 8;
textureShader.SetInt(ShaderIDs._OffsetIndex, i);
if (albedoLoader.Result && normalLoader.Result && smLoader.Result)
{
textureShader.SetTexture(1, ShaderIDs._TerrainMainTexArray, albedoLoader.Result);
textureShader.SetTexture(1, ShaderIDs._TerrainBumpMapArray, normalLoader.Result);
textureShader.SetTexture(1, ShaderIDs._TerrainSMTexArray, smLoader.Result);
textureShader.Dispatch(1, disp, disp, 1);
}
else
{
textureShader.Dispatch(2, disp, disp, 1);
}
texs.albedoOccTex.ReleaseAsset();
texs.normalTex.ReleaseAsset();
texs.SMTex.ReleaseAsset();
}
textureShader.SetInt(ShaderIDs._Count, terrainData.textures.Length);
while (enabled)
{
TerrainLoadData loadData;
if (loadDataList.TryDequeue(out loadData))
{
switch (loadData.ope)
{
case TerrainLoadData.Operator.Load:
while (!GetComplete(ref loadData.handler0))
{
yield return(null);
}
LoadTexture(loadData.handler0, loadData.startIndex, loadData.size);
loadData.handler0.Dispose();
break;
case TerrainLoadData.Operator.Separate:
while (!GetComplete(ref loadData.handler0))
{
yield return(null);
}
while (!GetComplete(ref loadData.handler1))
{
yield return(null);
}
while (!GetComplete(ref loadData.handler2))
{
yield return(null);
}
while (!GetComplete(ref loadData.handler3))
{
yield return(null);
}
int subSize = loadData.size / 2;
LoadTexture(loadData.handler0, loadData.startIndex, subSize);
LoadTexture(loadData.handler1, loadData.startIndex + int2(0, subSize), subSize);
LoadTexture(loadData.handler2, loadData.startIndex + int2(subSize, 0), subSize);
LoadTexture(loadData.handler3, loadData.startIndex + subSize, subSize);
loadData.handler0.Dispose();
loadData.handler1.Dispose();
loadData.handler2.Dispose();
loadData.handler3.Dispose();
break;
case TerrainLoadData.Operator.Unload:
vt.UnloadTexture(loadData.startIndex);
break;
case TerrainLoadData.Operator.Combine:
vt.CombineTexture(loadData.startIndex, loadData.size, false);
break;
}
}
else
{
yield return(null);
}
}
}
public ModelRoot CreateTerrainMesh(Triangulation triangulation, PBRTexture textures, bool doubleSided = true)
{
return(AddTerrainMesh(CreateNewModel(), triangulation, textures, doubleSided));
}
internal void Run(ServiceProvider serviceProvider)
{
bool useTIN = false; // still buggy with SRID 3857
int v_outSrid = Reprojection.SRID_PROJECTED_MERCATOR;
IglTFService glTF = serviceProvider.GetService <IglTFService>();
IElevationService elevationService = serviceProvider.GetService <IElevationService>();
string outputDir = Path.GetFullPath(Path.Combine(_outputDirectory, "glTF"));
Logger.Info("============================");
Logger.Info($"= {nameof(TextureSamples)}");
Logger.Info("============================");
Logger.Info($"= {nameof(TextureSamples)} : Datadirectory report");
// Get GPX points
var bbox = GeometryService.GetBoundingBox(_bboxWkt);
//=======================
// Textures
//
TextureInfo texInfo = null;
ImageryService imageryService = new ImageryService();
Console.WriteLine("Download image tiles...");
TileRange tiles = imageryService.DownloadTiles(bbox, ImageryProvider.StamenToner, 1);
Console.WriteLine("Construct texture...");
string fileName = Path.Combine(outputDir, "Texture.jpg");
texInfo = imageryService.ConstructTexture(tiles, bbox, fileName, TextureImageFormat.image_jpeg);
//
//=======================
//=======================
// Normal map
Console.WriteLine("Height map...");
float Z_FACTOR = 2f;
HeightMap hMapNormal = elevationService.GetHeightMap(bbox, _normalsDataSet);
//HeightMap hMapNormal = _elevationService.GetHeightMap(bbox, Path.Combine(_localdatadir, "ETOPO1", "ETOPO1_Bed_g_geotiff.tif"), DEMFileFormat.GEOTIFF);
hMapNormal = hMapNormal.ReprojectTo(4326, v_outSrid);
//hMapNormal = hMapNormal.ReprojectGeodeticToCartesian();
Console.WriteLine("Generate normal map...");
TextureInfo normal = imageryService.GenerateNormalMap(hMapNormal, outputDir);
//
//=======================
//=======================
// Get height map
HeightMap hMap = elevationService.GetHeightMap(bbox, _meshDataSet);
//HeightMap hMap = _elevationService.GetHeightMap(bbox, Path.Combine(_localdatadir, "ETOPO1","ETOPO1_Bed_g_geotiff.tif"), DEMFileFormat.GEOTIFF);
//=======================
// UV mapping (before projection)
PBRTexture pBRTexture = PBRTexture.Create(texInfo, normal, imageryService.ComputeUVMap(hMap, texInfo));
hMap = hMap.ReprojectTo(4326, v_outSrid);
hMap = hMap.CenterOnOrigin().ZScale(Z_FACTOR);
//=======================
//=======================
// MESH 3D terrain
List <MeshPrimitive> meshes = new List <MeshPrimitive>();
// generate mesh with texture
MeshPrimitive triangleMesh;
if (useTIN)
{
Console.WriteLine("Create TIN...");
//triangleMesh = GenerateTIN(hMapTIN, glTF, pBRTexture);
triangleMesh = TINGeneration.GenerateTIN(hMap, 10d, glTF, pBRTexture, v_outSrid);
}
else
{
Console.WriteLine("GenerateTriangleMesh...");
triangleMesh = glTF.GenerateTriangleMesh_Boxed(hMap);
}
meshes.Add(triangleMesh);
// model export
Console.WriteLine("GenerateModel...");
Model model = glTF.GenerateModel(meshes, this.GetType().Name);
glTF.Export(model, outputDir, $"{GetType().Name} NONormal", false, true);
}
public ModelRoot AddMesh(ModelRoot model, string nodeName, IndexedTriangulation indexedTriangulation, IEnumerable <Vector3> normals, PBRTexture textures, bool doubleSided = true)
{
// create a basic scene
model = model ?? CreateNewModel();
var rnode = model.LogicalScenes.First()?.FindNode(n => n.Name == nodeName);
if (rnode == null)
{
rnode = model.LogicalScenes.First().CreateNode(nodeName);
}
var rmesh = rnode.Mesh = FindOrCreateMesh(model, string.Concat(rnode.Name, "Mesh"));
var material = model.CreateMaterial(string.Concat(nodeName, "Material"))
.WithPBRMetallicRoughness(Vector4.One, textures?.BaseColorTexture?.FilePath, null, 0, 1)
.WithDoubleSide(doubleSided);
if (textures != null && textures.NormalTexture != null)
{
material.WithChannelTexture("NORMAL", 0, textures.NormalTexture.FilePath);
}
// create mesh primitive
MeshPrimitive primitive = rmesh.CreatePrimitive();
if (indexedTriangulation.Colors != null && indexedTriangulation.Colors.Any())
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
primitive = primitive.WithVertexAccessor("COLOR_0", indexedTriangulation.Colors);
}
else
{
primitive = primitive.WithVertexAccessor("POSITION", indexedTriangulation.Positions);
}
if (normals != null)
{
primitive = primitive.WithVertexAccessor("NORMAL", normals.ToList());
}
primitive = primitive.WithIndicesAccessor(PrimitiveType.TRIANGLES, indexedTriangulation.Indices);
if (textures != null && textures.TextureCoordSets == null)
{
(Vector3 Min, Vector3 Max)coordBounds = CalculateBounds(indexedTriangulation.Positions);
textures.TextureCoordSets = indexedTriangulation.Positions.Select(pos => new Vector2(
MathHelper.Map(coordBounds.Min.X, coordBounds.Max.X, 0, 1, pos.X, true)
, MathHelper.Map(coordBounds.Min.Z, coordBounds.Max.Z, 0, 1, pos.Z, true)
));
primitive = primitive
.WithVertexAccessor("TEXCOORD_0", textures.TextureCoordSets.ToList());
}
primitive = primitive.WithMaterial(material);
return(model);
}
/// <summary>
/// Generate a triangle mesh from supplied height map, triangulating and optionaly mapping UVs
/// </summary>
/// <param name="heightMap"></param>
/// <param name="colors"></param>
/// <param name="texture">Texture path relative from the model</param>
/// <returns></returns>
public MeshPrimitive GenerateTriangleMesh(HeightMap heightMap, IEnumerable <Vector4> colors = null, PBRTexture texture = null)
{
Triangulation triangulation = _meshService.TriangulateHeightMap(heightMap);
return(GenerateTriangleMesh(triangulation, colors, texture));
}
public ModelRoot CreateTerrainMesh(HeightMap heightMap, PBRTexture textures)
{
return(AddTerrainMesh(CreateNewModel(), heightMap, textures));
}
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);
}
