{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949470,-0.313859,0.000000,0.000000,0.175463,-0.530802,0.829133,0.000000,-0.259682,0.785578,0.561633,0.000000,-1658041.828101,5015824.793738,3561954.941545,1],    "boundingVolume": {    "region": [1.890001,0.596317,1.890100,0.596399,0.000000,10.281829]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1409109.b3dm"}}}