{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950499,-0.310727,0.000000,0.000000,0.173782,-0.531591,0.828982,0.000000,-0.257044,0.786285,0.561858,0.000000,-1641197.730659,5020341.966101,3563382.113749,1],    "boundingVolume": {    "region": [1.886706,0.596580,1.886803,0.596679,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1393283.b3dm"}}}