{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943951,-0.330087,0.000000,0.000000,0.184186,-0.526717,0.829846,0.000000,-0.273346,0.781690,0.560574,0.000000,-1745275.614017,4990976.827197,3555222.963430,1],    "boundingVolume": {    "region": [1.907144,0.595021,1.907239,0.595136,0.000000,8.725907]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/1_1309780.b3dm"}}}