{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949078,-0.315041,0.000000,0.000000,0.176016,-0.530257,0.829365,0.000000,-0.260734,0.785476,0.561289,0.000000,-1664753.086086,5015162.956150,3559770.582325,1],    "boundingVolume": {    "region": [1.891227,0.595890,1.891365,0.595996,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1444911.b3dm"}}}