{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898322,-0.439338,0.000000,0.000000,0.284382,-0.581480,0.762239,0.000000,-0.333936,0.682804,0.649820,0.000000,-2132904.814954,4361184.549516,4122725.752720,1],    "boundingVolume": {    "region": [2.025605,0.707311,2.025711,0.707384,0.000000,11.006872]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/6_1802980.b3dm"}}}