/// <summary>
///
/// </summary>
/// <param name="objFolder">folder contains obj files</param>
/// <param name="outputFolder">tiles output folder</param>
/// <param name="gisPosition">where the tiles are</param>
public TilesConverter(string objFolder, string outputFolder,
GisPosition gisPosition)
{
_objFolder = objFolder;
_gisPosition = gisPosition;
_options = new TilesOptions {
OutputFolder = outputFolder
};
}
/// <summary>
/// when converted, generate tileset.json
/// </summary>
/// <param name="objModel">Parsed obj Model</param>
/// <param name="outputPath">output folder</param>
/// <param name="gisPosition">where the obj model positioned</param>
/// <returns></returns>
public static string WriteTilesetFile(ObjModel objModel,
string objFolder, string outputPath, GisPosition gisPosition)
{
var singleTileset = WriteTileset(objModel, objFolder, outputPath, gisPosition);
var tilesetFile = Path.Combine(outputPath, "tileset.json");
WriteTilesetJsonFile(tilesetFile, singleTileset);
return(tilesetFile);
}
public void SetPosition(GisPosition pos)
{
if (pos != null)
{
Longitude = pos.Longitude;
Latitude = pos.Latitude;
if (pos.TransHeight.HasValue)
{
TransHeight = pos.TransHeight.Value;
}
}
}
/// <summary>
/// when converted, merge tileset.json
/// </summary>
/// <param name="outputFolder">tiles output folder</param>
/// <param name="gisPosition">where the tiles are</param>
/// <param name="lod">whether generate hierarchical tileset.json</param>
/// <param name="writeChildTilesetJson">keep children b3dm tileset.json</param>
/// <param name="objModels">obj file list</param>
/// <returns></returns>
internal static string MergeTilesets(string objFolder, string outputFolder,
GisPosition gisPosition, bool lod, bool writeChildTilesetJson, params ObjModel[] objModels)
{
var tasks = new Task <SingleTileset> [objModels.Length];
var outputPath = GenerateBatchedPath(outputFolder);
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
for (var i = 0; i < objModels.Length; i++)
{
var objFile = objModels[i];
tasks[i] = Task.Run(() => WriteTileset(objFile, objFolder, outputPath, gisPosition));
}
Task.WaitAll(tasks);
return(MergeTilesets(outputFolder, gisPosition, lod, writeChildTilesetJson, tasks));
}
/// <summary>
/// when converted, combine tileset.json
/// </summary>
/// <param name="outputFolder">tiles output folder</param>
/// <param name="gisPosition">where the tiles are</param>
/// <param name="objFiles">obj file list</param>
/// <returns></returns>
internal static string CombineTilesets(string outputFolder, GisPosition gisPosition,
params string[] objFiles)
{
var tasks = new Task <string> [objFiles.Length];
for (var i = 0; i < objFiles.Length; i++)
{
var objFile = objFiles[i];
var name = Path.GetFileNameWithoutExtension(objFile);
var outputPath = Path.Combine(outputFolder, "Batched" + name);
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
tasks[i] = Task.Run(() => WriteTilesetFile(objFile, outputPath, gisPosition));
}
Task.WaitAll(tasks);
return(CombineTilesets(outputFolder, gisPosition, tasks));
}
/// <summary>
///
/// </summary>
/// <param name="objFolder">all objModels should be in this folder</param>
/// <param name="objModels"></param>
/// <param name="gisPosition"></param>
/// <param name="options"></param>
public TilesConverter(string objFolder, ICollection <ObjModel> objModels, GisPosition gisPosition, TilesOptions options)
{
_objFolder = objFolder;
_gisPosition = gisPosition;
if (objModels is List <ObjModel> )
{
_objModels = (List <ObjModel>)objModels;
}
else
{
_objModels = new List <ObjModel>(objModels);
}
_options = options ?? new TilesOptions();
if (String.IsNullOrEmpty(_options.OutputFolder))
{
_options.OutputFolder = Path.Combine(objFolder, "ConvertedTiles");
}
if (_options != null)
{
MergeTileJsonFiles = _options.MergeTileJsonFiles;
WriteChildTileJson = _options.WriteChildTileJson;
}
}
internal static SingleTileset WriteTileset(ObjModel objModel,
string objFolder, string outputPath, GisPosition gisPosition)
{
var modelName = objModel.Name;
var b3dmFile = Path.Combine(outputPath, modelName + ".b3dm");
var converter = new Converter(objModel, objFolder,
new GltfOptions {
Binary = true, Name = modelName, WithBatchTable = true
});
var tilesetOptions = WriteB3dm(converter, b3dmFile);
//tilesetOptions.TransHeight = 0;
//tilesetOptions.MinHeight = 0;
//tilesetOptions.MaxHeight = 40;
//tilesetOptions.TileWidth = 200;
//tilesetOptions.TileHeight = 200;
tilesetOptions.SetPosition(gisPosition);
tilesetOptions.UseRegion = true;
var singleTileset = SingleTileset.Create(tilesetOptions);
return(singleTileset);
}
/// <summary>
/// when converted, generate tileset
/// </summary>
/// <param name="objFile">obj file path</param>
/// <param name="outputPath">output folder</param>
/// <param name="gisPosition">where the obj model positioned</param>
/// <returns></returns>
internal static SingleTileset WriteTileset(string objFile, string outputPath, GisPosition gisPosition)
{
var fileName = Path.GetFileNameWithoutExtension(objFile);
var b3dmFile = Path.Combine(outputPath, fileName + ".b3dm");
var tilesetOptions = WriteB3dm(objFile, b3dmFile);
//tilesetOptions.TransHeight = 0;
//tilesetOptions.MinHeight = 0;
//tilesetOptions.MaxHeight = 40;
//tilesetOptions.TileWidth = 200;
//tilesetOptions.TileHeight = 200;
tilesetOptions.SetPosition(gisPosition);
tilesetOptions.UseRegion = true;
var singleTileset = SingleTileset.Create(tilesetOptions);
return(singleTileset);
}
internal static string CombineTilesets(string outputFolder, GisPosition gisPosition,
params Task <string>[] waitedTasks)
{
var west = double.MaxValue;
var south = double.MaxValue;
var north = double.MinValue;
var east = double.MinValue;
var minheight = double.MaxValue;
var maxheight = double.MinValue;
var outputTileset = Path.Combine(outputFolder, "tileset.json");
var tiles = new List <Tile>();
var geometricError = 500.0;
foreach (var t in waitedTasks)
{
var jsonFile = t.Result;
var json = JsonConvert.DeserializeObject <SingleTileset>(
File.ReadAllText(jsonFile, Encoding.UTF8));
if (json.Root == null)
{
continue;
}
var boundingVolume = json.Root.BoundingVolume;
if (boundingVolume == null)
{
continue;
}
var geometricError0 = json.GeometricError;
if (boundingVolume.Region != null &&
boundingVolume.Region.Length >= 6)
{
west = Math.Min(west, boundingVolume.Region[0]);
south = Math.Min(south, boundingVolume.Region[1]);
east = Math.Max(east, boundingVolume.Region[2]);
north = Math.Max(north, boundingVolume.Region[3]);
minheight = Math.Min(minheight, boundingVolume.Region[4]);
maxheight = Math.Max(maxheight, boundingVolume.Region[5]);
}
tiles.Add(new Tile
{
BoundingVolume = boundingVolume,
GeometricError = geometricError0,
Refine = json.Root.Refine,
Content = new TileContent
{
Url = jsonFile.Substring(outputFolder.Length).TrimStart(new char[] { '\\', '/' }).Replace('\\', '/')
}
});
}
var allTileset = new SingleTileset
{
Asset = new TilesetAsset
{
Version = "0.0",
TilesetVersion = "1.0.0-arctron"
},
GeometricError = geometricError,
Root = new Tile
{
BoundingVolume = new BoundingVolume
{
Region = new double[] {
west, south,
east, north,
minheight, maxheight
}
},
Refine = "ADD",
GeometricError = geometricError,
Children = tiles
}
};
var tilesetJsonPath = Path.Combine(outputFolder, "tileset.json");
File.WriteAllText(tilesetJsonPath,
JsonConvert.SerializeObject(allTileset,
new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore,
Formatting = Formatting.Indented
}));
return(tilesetJsonPath);
}
internal static string MergeTilesets(string outputFolder, GisPosition gisPosition, bool lod, bool writeChildTilesetJson, params Task <SingleTileset>[] waitedTasks)
{
var west = double.MaxValue;
var south = double.MaxValue;
var north = double.MinValue;
var east = double.MinValue;
var minheight = double.MaxValue;
var maxheight = double.MinValue;
var outputTileset = Path.Combine(outputFolder, "tileset.json");
var outputPath = GenerateBatchedPath(outputFolder);
var tilesetList = new List <SingleTileset>();
var tiles = new List <Tile>();
var geometricError = 500.0;
foreach (var t in waitedTasks)
{
var json = t.Result;
tilesetList.Add(json);
if (json.Root == null)
{
continue;
}
var boundingVolume = json.Root.BoundingVolume;
if (boundingVolume == null)
{
continue;
}
var geometricError0 = json.GeometricError;
if (boundingVolume.Region != null &&
boundingVolume.Region.Length >= 6)
{
west = Math.Min(west, boundingVolume.Region[0]);
south = Math.Min(south, boundingVolume.Region[1]);
east = Math.Max(east, boundingVolume.Region[2]);
north = Math.Max(north, boundingVolume.Region[3]);
minheight = Math.Min(minheight, boundingVolume.Region[4]);
maxheight = Math.Max(maxheight, boundingVolume.Region[5]);
}
var contentName = Path.GetFileNameWithoutExtension(json.Root.Content.Url);
if (!lod)
{
var err = geometricError0 / 4.0;
if (json.Root != null)
{
double?err0 = null;
if (json.Root.OriginalX != null && json.Root.OriginalX.IsValid())
{
var errX = (json.Root.OriginalX.Max - json.Root.OriginalX.Min) / 10;
err0 = errX;
}
if (json.Root.OriginalY != null && json.Root.OriginalY.IsValid())
{
var errY = (json.Root.OriginalY.Max - json.Root.OriginalY.Min) / 10;
if (!err0.HasValue)
{
err0 = errY;
}
else if (err0.Value < errY)
{
err0 = errY;
}
}
if (json.Root.OriginalZ != null && json.Root.OriginalZ.IsValid())
{
var errZ = (json.Root.OriginalZ.Max - json.Root.OriginalZ.Min) / 10;
if (!err0.HasValue)
{
err0 = errZ;
}
else if (err0.Value < errZ)
{
err0 = errZ;
}
}
if (err0.HasValue)
{
err = err0.Value;
}
}
tiles.Add(new Tile
{
BoundingVolume = boundingVolume,
GeometricError = 0.0,
Refine = null,
Content = new TileContent
{
Url = DataFolderName + "/" + json.Root.Content.Url,
BoundingVolume = boundingVolume
}
});
}
if (writeChildTilesetJson)
{
var jsonFilepath = Path.Combine(outputPath, contentName + ".json");
WriteTilesetJsonFile(jsonFilepath, json);
}
}
if (lod)
{
tiles = TilesetRegionComparer.SortTrees(tilesetList, DataFolderName);
}
var longitude = gisPosition.Longitude;
var latitude = gisPosition.Latitude;
var transHeight = gisPosition.TransHeight.HasValue ? gisPosition.TransHeight.Value : 0.0;
var transformArray = GisUtil.Wgs84Transform(
longitude, latitude, transHeight).ToArray();
var allTileset = new SingleTileset
{
Asset = new TilesetAsset
{
Version = "0.0",
TilesetVersion = "1.0.0-arctron"
},
GeometricError = geometricError,
Root = new Tile
{
BoundingVolume = new BoundingVolume
{
Region = new double[] {
west, south,
east, north,
minheight, maxheight
}
},
Refine = "ADD",
GeometricError = geometricError / 2.0,
Children = tiles,
Transform = transformArray
}
};
allTileset.ResetGeometricErrors(); //TODO:
var tilesetJsonPath = Path.Combine(outputFolder, "tileset.json");
File.WriteAllText(tilesetJsonPath,
JsonConvert.SerializeObject(allTileset,
new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore
//,Formatting = Formatting.Indented
}));
return(tilesetJsonPath);
}
