{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950150,-0.311794,0.000000,0.000000,0.173926,-0.530017,0.829959,0.000000,-0.258234,0.786931,0.560406,0.000000,-1648783.053478,5024438.141404,3554157.262361,1],    "boundingVolume": {    "region": [1.887795,0.594811,1.887959,0.594942,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1451947.b3dm"}}}