{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950039,-0.312130,0.000000,0.000000,0.174478,-0.531064,0.829174,0.000000,-0.258265,0.786088,0.561573,0.000000,-1648988.861988,5019080.673868,3561573.710535,1],    "boundingVolume": {    "region": [1.888145,0.596183,1.888316,0.596388,0.000000,17.053839]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1440640.b3dm"}}}