{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897946,-0.440105,0.000000,0.000000,0.282488,-0.576360,0.766818,0.000000,-0.336544,0.686651,0.644398,0.000000,-2149514.984415,4385651.515839,4088231.427817,1],    "boundingVolume": {    "region": [2.026449,0.700201,2.026576,0.700270,0.000000,19.737503]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_883914.b3dm"}}}