{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950227,-0.311560,0.000000,0.000000,0.174284,-0.531550,0.828903,0.000000,-0.257708,0.785984,0.561975,0.000000,-1645437.214904,5018421.625417,3564126.894695,1],    "boundingVolume": {    "region": [1.887554,0.596679,1.887706,0.596864,0.000000,8.746875]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1400230.b3dm"}}}