{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898084,-0.439824,0.000000,0.000000,0.283963,-0.579827,0.763653,0.000000,-0.334930,0.683899,0.648154,0.000000,-2139242.130387,4368148.499777,4112127.338388,1],    "boundingVolume": {    "region": [2.026133,0.705047,2.026266,0.705269,0.000000,8.070454]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1844572.b3dm"}}}