{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949288,-0.314409,0.000000,0.000000,0.175771,-0.530700,0.829134,0.000000,-0.260138,0.785428,0.561633,0.000000,-1660950.687033,5014864.853569,3561951.369403,1],    "boundingVolume": {    "region": [1.890581,0.596317,1.890680,0.596398,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416694.b3dm"}}}