{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949281,-0.314429,0.000000,0.000000,0.175680,-0.530389,0.829351,0.000000,-0.260223,0.785631,0.561309,0.000000,-1661493.757034,5016153.277273,3559897.138242,1],    "boundingVolume": {    "region": [1.890583,0.595914,1.890720,0.596020,0.000000,8.781144]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1361254.b3dm"}}}