{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897911,-0.440176,0.000000,0.000000,0.282758,-0.576796,0.766390,0.000000,-0.336409,0.686238,0.644907,0.000000,-2148658.169964,4383028.153067,4091472.073074,1],    "boundingVolume": {    "region": [2.026528,0.700868,2.026655,0.700937,0.000000,7.910132]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_853017.b3dm"}}}