{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948803,-0.315868,0.000000,0.000000,0.176273,-0.529488,0.829802,0.000000,-0.261558,0.785665,0.560640,0.000000,-1670010.072277,5016361.650277,3555644.656213,1],    "boundingVolume": {    "region": [1.892120,0.595047,1.892216,0.595270,0.000000,8.751269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1074280.b3dm"}}}