{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950290,-0.311367,0.000000,0.000000,0.174015,-0.531092,0.829253,0.000000,-0.257659,0.786371,0.561455,0.000000,-1645119.149864,5020884.309321,3560826.027527,1],    "boundingVolume": {    "region": [1.887352,0.596051,1.887504,0.596236,0.000000,8.617396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_1431569.b3dm"}}}