{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949893,-0.312575,0.000000,0.000000,0.174453,-0.530149,0.829764,0.000000,-0.258819,0.786532,0.560696,0.000000,-1652521.273890,5021895.932618,3556001.175875,1],    "boundingVolume": {    "region": [1.888617,0.595161,1.888781,0.595292,0.000000,8.808103]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356632.b3dm"}}}