{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898095,-0.439801,0.000000,0.000000,0.284312,-0.580579,0.762951,0.000000,-0.334603,0.683275,0.648981,0.000000,-2137156.682005,4364177.410192,4117389.277527,1],    "boundingVolume": {    "region": [2.026107,0.706133,2.026240,0.706356,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821223.b3dm"}}}