{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897745,-0.440516,0.000000,0.000000,0.282870,-0.576471,0.766593,0.000000,-0.336759,0.686294,0.644665,0.000000,-2150890.192272,4383380.796644,4089931.607994,1],    "boundingVolume": {    "region": [2.026907,0.700551,2.027033,0.700620,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857971.b3dm"}}}