{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897876,-0.440249,0.000000,0.000000,0.282631,-0.576418,0.766721,0.000000,-0.336611,0.686510,0.644513,0.000000,-2149944.539375,4384755.422158,4088961.752226,1],    "boundingVolume": {    "region": [2.026609,0.700352,2.026735,0.700421,0.000000,15.942125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_852640.b3dm"}}}