{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950554,-0.310559,0.000000,0.000000,0.173684,-0.531608,0.828992,0.000000,-0.256908,0.786340,0.561843,0.000000,-1640329.530605,5020693.071753,3563287.832176,1],    "boundingVolume": {    "region": [1.886529,0.596562,1.886626,0.596661,0.000000,18.047987]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392715.b3dm"}}}