{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950268,-0.311435,0.000000,0.000000,0.173926,-0.530694,0.829526,0.000000,-0.257800,0.786615,0.561050,0.000000,-1646019.396115,5022429.584877,3558247.209616,1],    "boundingVolume": {    "region": [1.887449,0.595595,1.887549,0.595712,0.000000,8.803672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1428293.b3dm"}}}