{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950538,-0.310608,0.000000,0.000000,0.173330,-0.530432,0.829818,0.000000,-0.257207,0.787118,0.560615,0.000000,-1642230.962412,5025636.523841,3555487.211490,1],    "boundingVolume": {    "region": [1.886538,0.595056,1.886720,0.595202,0.000000,8.720680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/15_1345983.b3dm"}}}