{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898020,-0.439956,0.000000,0.000000,0.284399,-0.580504,0.762976,0.000000,-0.334731,0.683239,0.648952,0.000000,-2137976.543833,4363950.710162,4117205.159940,1],    "boundingVolume": {    "region": [2.026279,0.706095,2.026412,0.706318,0.000000,11.388064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1820919.b3dm"}}}