{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950866,-0.309604,0.000000,0.000000,0.172989,-0.531291,0.829340,0.000000,-0.256226,0.786931,0.561326,0.000000,-1635972.333706,5024457.538461,3560005.423055,1],    "boundingVolume": {    "region": [1.885500,0.595878,1.885645,0.596097,0.000000,8.797125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1339685.b3dm"}}}