{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949248,-0.314529,0.000000,0.000000,0.175739,-0.530380,0.829345,0.000000,-0.260304,0.785597,0.561319,0.000000,-1662007.210074,5015938.552399,3559959.594703,1],    "boundingVolume": {    "region": [1.890688,0.595926,1.890825,0.596032,0.000000,8.407140]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/9_1444960.b3dm"}}}