{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897896,-0.440207,0.000000,0.000000,0.282606,-0.576435,0.766718,0.000000,-0.336578,0.686523,0.644517,0.000000,-2149732.212374,4384836.528907,4088986.246678,1],    "boundingVolume": {    "region": [2.026562,0.700357,2.026689,0.700426,0.000000,15.942125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_852687.b3dm"}}}