{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950020,-0.312189,0.000000,0.000000,0.174054,-0.529664,0.830157,0.000000,-0.258623,0.787014,0.560111,0.000000,-1651265.497578,5024959.820929,3552279.413518,1],    "boundingVolume": {    "region": [1.888210,0.594454,1.888374,0.594585,0.000000,9.930278]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1460069.b3dm"}}}