{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950511,-0.310690,0.000000,0.000000,0.173419,-0.530548,0.829726,0.000000,-0.257246,0.787007,0.560753,0.000000,-1642482.810925,5024930.961110,3556362.106516,1],    "boundingVolume": {    "region": [1.886666,0.595237,1.886765,0.595353,0.000000,8.808242]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1450446.b3dm"}}}