{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949085,-0.315020,0.000000,0.000000,0.176086,-0.530509,0.829189,0.000000,-0.260661,0.785314,0.561550,0.000000,-1664286.972795,5014132.414995,3561428.692542,1],    "boundingVolume": {    "region": [1.891205,0.596205,1.891342,0.596311,0.000000,8.768397]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1446997.b3dm"}}}