{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950069,-0.312040,0.000000,0.000000,0.173986,-0.529734,0.830127,0.000000,-0.258490,0.787025,0.560156,0.000000,-1650421.118086,5025034.072426,3552564.850007,1],    "boundingVolume": {    "region": [1.888054,0.594508,1.888218,0.594639,0.000000,11.279145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1458466.b3dm"}}}