{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949615,-0.313420,0.000000,0.000000,0.175280,-0.531071,0.829000,0.000000,-0.259277,0.785570,0.561831,0.000000,-1655455.540582,5015778.037665,3563215.007879,1],    "boundingVolume": {    "region": [1.889512,0.596514,1.889665,0.596682,0.000000,13.168907]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_1411854.b3dm"}}}