{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950612,-0.310382,0.000000,0.000000,0.173382,-0.531020,0.829432,0.000000,-0.256899,0.786809,0.561190,0.000000,-1640268.837419,5023674.073854,3559139.800207,1],    "boundingVolume": {    "region": [1.886334,0.595766,1.886449,0.595880,0.000000,8.818112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/13_1425120.b3dm"}}}