{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950199,-0.311645,0.000000,0.000000,0.174400,-0.531740,0.828756,0.000000,-0.257733,0.785821,0.562192,0.000000,-1645596.566750,5017383.813348,3565504.894977,1],    "boundingVolume": {    "region": [1.887644,0.596941,1.887796,0.597126,0.000000,8.814296]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1401123.b3dm"}}}