{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950058,-0.312075,0.000000,0.000000,0.174010,-0.529743,0.830116,0.000000,-0.258515,0.787005,0.560172,0.000000,-1650579.749635,5024907.109159,3552670.025150,1],    "boundingVolume": {    "region": [1.888090,0.594528,1.888254,0.594659,0.000000,11.823777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458528.b3dm"}}}