{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897895,-0.440210,0.000000,0.000000,0.282714,-0.576650,0.766516,0.000000,-0.336491,0.686339,0.644757,0.000000,-2149178.185003,4383670.476729,4090517.129314,1],    "boundingVolume": {    "region": [2.026566,0.700671,2.026692,0.700740,0.000000,7.520218]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_852912.b3dm"}}}