{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943926,-0.330158,0.000000,0.000000,0.184544,-0.527614,0.829196,0.000000,-0.273189,0.781051,0.561539,0.000000,-1744281.287903,4986918.485835,3561359.217263,1],    "boundingVolume": {    "region": [1.907220,0.596187,1.907315,0.596302,0.000000,7.987032]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1268909.b3dm"}}}