{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949131,-0.314882,0.000000,0.000000,0.116105,-0.349969,0.929538,0.000000,-0.292426,0.881443,0.370870,0.000000,-1865995.220968,5624557.183250,2350703.883602,1],    "boundingVolume": {    "region": [1.891075,0.379888,1.891183,0.380003,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1067.b3dm"}}}