{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950386,-0.311073,0.000000,0.000000,0.173642,-0.530510,0.829704,0.000000,-0.257556,0.786883,0.560786,0.000000,-1644459.485758,5024135.863907,3556570.568443,1],    "boundingVolume": {    "region": [1.887068,0.595276,1.887168,0.595393,0.000000,8.534359]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_1450549.b3dm"}}}