{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950041,-0.312125,0.000000,0.000000,0.174216,-0.530276,0.829733,0.000000,-0.258437,0.786625,0.560743,0.000000,-1650083.214495,5022487.871808,3556295.339825,1],    "boundingVolume": {    "region": [1.888144,0.595217,1.888308,0.595348,0.000000,8.820070]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1454456.b3dm"}}}