{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950257,-0.311467,0.000000,0.000000,0.173958,-0.530730,0.829497,0.000000,-0.257817,0.786578,0.561093,0.000000,-1646130.245376,5022194.599250,3558525.713926,1],    "boundingVolume": {    "region": [1.887483,0.595648,1.887582,0.595765,0.000000,8.220359]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1343916.b3dm"}}}