{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943931,-0.330143,0.000000,0.000000,0.184391,-0.527202,0.829492,0.000000,-0.273275,0.781337,0.561100,0.000000,-1744826.959246,4988735.226721,3558565.224770,1],    "boundingVolume": {    "region": [1.907204,0.595656,1.907299,0.595771,0.000000,8.789196]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1273359.b3dm"}}}