{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950023,-0.312179,0.000000,0.000000,0.174057,-0.529691,0.830140,0.000000,-0.258609,0.786999,0.560137,0.000000,-1651180.710776,5024869.251797,3552445.815512,1],    "boundingVolume": {    "region": [1.888200,0.594485,1.888364,0.594617,0.000000,12.137889]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1460190.b3dm"}}}