/// <summary>
///
/// </summary>
/// <param name="options">options obtained when convert b3dm data</param>
/// <returns></returns>
public static SingleTileset Create(TilesetCreationOptions options)
{
if (options == null)
{
options = new TilesetCreationOptions();
}
var longitude = options.Longitude;
var latitude = options.Latitude;
var minHeight = options.MinHeight;
var maxHeight = options.MaxHeight;
var transHeight = options.TransHeight;
var tileWidth = options.TileWidth;
var tileHeight = options.TileHeight;
var offsetX = options.OffsetX;
var offsetY = options.OffsetY;
var upAxis = options.GltfUpAxis ?? "Y";
// properties
var geometricError = options.GeometricError;
var transformArray = options.Transfrom;
if (transformArray == null || transformArray.Length == 0)
{
transformArray = GisUtil.Wgs84Transform(
longitude, latitude, transHeight).ToArray();
}
var height = maxHeight - minHeight;
if (!(options.UseRegion || options.UseBox || options.UseSphere))
{
options.UseRegion = true;
}
BoundingVolume boundingVolume = null;
if (options.UseRegion)
{
var longitudeExtent = GisUtil.MetersToLongitude(tileWidth, latitude);
var latitudeExtent = GisUtil.MetersToLatituide(tileHeight);
var west = longitude - longitudeExtent / 2 +
offsetX / tileWidth * longitudeExtent;
var south = latitude - latitudeExtent / 2 -
offsetY / tileHeight * latitudeExtent;
var east = longitude + longitudeExtent / 2 +
offsetX / tileWidth * longitudeExtent;
var north = latitude + latitudeExtent / 2 -
offsetY / tileHeight * latitudeExtent;
boundingVolume = new BoundingVolume
{
Region = new double[] { west, south, east, north, minHeight, maxHeight }
};
}
else if (options.UseBox)
{
boundingVolume = new BoundingVolume
{
Box = new double[] {
offsetX, -offsetY, height / 2 + minHeight, // center
tileWidth / 2, 0, 0, // width
0, tileHeight / 2, 0, // depth
0, 0, height / 2 // height
}
};
}
else if (options.UseSphere)
{
boundingVolume = new BoundingVolume
{
Sphere = new double[]
{
offsetX, -offsetY, height / 2 + minHeight,
Math.Sqrt(tileWidth * tileWidth / 4 + tileHeight * tileHeight / 4 + height * height / 4)
}
};
}
return(new SingleTileset
{
Asset = new TilesetAsset {
GltfUpAxis = upAxis
},
//Properties
GeometricError = geometricError,
Root = new Tile
{
Transform = transformArray,
BoundingVolume = boundingVolume,
Content = new TileContent
{
Url = options.TileName
},
OriginalX = options.OriginalX,
OriginalY = options.OriginalY,
OriginalZ = options.OriginalZ
}
});
}
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);
}
