{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949724,-0.313089,0.000000,0.000000,0.174987,-0.530805,0.829232,0.000000,-0.259077,0.785883,0.561487,0.000000,-1654174.766750,5017765.238993,3561026.047371,1],    "boundingVolume": {    "region": [1.889164,0.596097,1.889317,0.596266,0.000000,10.624152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1348990.b3dm"}}}