{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942887,-0.333113,0.000000,0.000000,0.186677,-0.528396,0.828221,0.000000,-0.275307,0.779265,0.562985,0.000000,-1757811.068503,4975541.996620,3570545.228346,1],    "boundingVolume": {    "region": [1.910337,0.597962,1.910462,0.598024,0.000000,8.576233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/1/21_1285263.b3dm"}}}