{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948998,-0.315283,0.000000,0.000000,0.175879,-0.529394,0.829945,0.000000,-0.261118,0.785964,0.560427,0.000000,-1667201.429982,5018262.978696,3554288.650892,1],    "boundingVolume": {    "region": [1.891503,0.594806,1.891598,0.594996,0.000000,13.270409]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/28_1177755.b3dm"}}}