{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897896,-0.440208,0.000000,0.000000,0.282855,-0.576940,0.766246,0.000000,-0.336370,0.686096,0.645079,0.000000,-2148409.193323,4382122.873656,4092564.993190,1],    "boundingVolume": {    "region": [2.026564,0.701093,2.026690,0.701162,0.000000,8.796166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/15_812428.b3dm"}}}