{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948885,-0.315623,0.000000,0.000000,0.176347,-0.530166,0.829353,0.000000,-0.261212,0.785304,0.561307,0.000000,-1667806.190834,5014067.490404,3559883.872914,1],    "boundingVolume": {    "region": [1.891841,0.595911,1.891978,0.596018,0.000000,8.808038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1148144.b3dm"}}}