{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898105,-0.439781,0.000000,0.000000,0.284291,-0.580570,0.762966,0.000000,-0.334594,0.683296,0.648964,0.000000,-2137099.410322,4364311.185763,4117277.957097,1],    "boundingVolume": {    "region": [2.026085,0.706110,2.026217,0.706333,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821068.b3dm"}}}