{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950028,-0.312166,0.000000,0.000000,0.174078,-0.529778,0.830079,0.000000,-0.258579,0.786945,0.560227,0.000000,-1650989.870249,5024525.885989,3553016.290469,1],    "boundingVolume": {    "region": [1.888186,0.594594,1.888350,0.594725,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1461015.b3dm"}}}