{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948855,-0.315712,0.000000,0.000000,0.176358,-0.530035,0.829434,0.000000,-0.261312,0.785357,0.561186,0.000000,-1668441.710257,5014405.522494,3559115.041686,1],    "boundingVolume": {    "region": [1.891935,0.595765,1.892072,0.595872,0.000000,8.587410]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1069499.b3dm"}}}