{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943939,-0.330121,0.000000,0.000000,0.184367,-0.527174,0.829516,0.000000,-0.273265,0.781366,0.561065,0.000000,-1744759.711766,4988918.870504,3558342.238474,1],    "boundingVolume": {    "region": [1.907180,0.595614,1.907276,0.595729,0.000000,8.583567]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1273871.b3dm"}}}