{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949229,-0.314584,0.000000,0.000000,0.175720,-0.530218,0.829452,0.000000,-0.260384,0.785685,0.561159,0.000000,-1662518.128046,5016494.665211,3558944.128725,1],    "boundingVolume": {    "region": [1.890746,0.595733,1.890884,0.595839,0.000000,9.160634]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/7_1444872.b3dm"}}}