{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950335,-0.311229,0.000000,0.000000,0.173242,-0.528991,0.830756,0.000000,-0.258015,0.787847,0.559218,0.000000,-1647382.417661,5030267.039196,3546604.596126,1],    "boundingVolume": {    "region": [1.887197,0.593342,1.887368,0.593542,0.000000,8.390493]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/12_1375993.b3dm"}}}