{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950553,-0.310561,0.000000,0.000000,0.173562,-0.531232,0.829258,0.000000,-0.256993,0.786595,0.561448,0.000000,-1640870.815394,5022309.558495,3560776.642709,1],    "boundingVolume": {    "region": [1.886531,0.596085,1.886629,0.596184,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426943.b3dm"}}}