{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950357,-0.311161,0.000000,0.000000,0.173794,-0.530808,0.829481,0.000000,-0.257559,0.786645,0.561117,0.000000,-1644480.224634,5022626.541117,3558677.949913,1],    "boundingVolume": {    "region": [1.887161,0.595677,1.887260,0.595794,0.000000,8.151981]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1343831.b3dm"}}}