{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950055,-0.312081,0.000000,0.000000,0.174027,-0.529784,0.830087,0.000000,-0.258512,0.786975,0.560216,0.000000,-1650556.979391,5024716.980801,3552947.635350,1],    "boundingVolume": {    "region": [1.888097,0.594581,1.888261,0.594712,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458960.b3dm"}}}