{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950522,-0.310656,0.000000,0.000000,0.173740,-0.531598,0.828986,0.000000,-0.256986,0.786309,0.561851,0.000000,-1640829.771029,5020491.020131,3563341.837389,1],    "boundingVolume": {    "region": [1.886631,0.596573,1.886728,0.596671,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1393099.b3dm"}}}