{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950702,-0.310105,0.000000,0.000000,0.173235,-0.531093,0.829415,0.000000,-0.256665,0.786868,0.561215,0.000000,-1638770.403103,5024052.503903,3559294.837858,1],    "boundingVolume": {    "region": [1.886042,0.595795,1.886157,0.595910,0.000000,8.794188]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425475.b3dm"}}}