{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898762,-0.438437,0.000000,0.000000,0.283159,-0.580455,0.763474,0.000000,-0.333795,0.684255,0.648365,0.000000,-2131992.617098,4370422.991127,4113466.370815,1],    "boundingVolume": {    "region": [2.024572,0.705375,2.024738,0.705494,0.000000,16.855802]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1831790.b3dm"}}}