{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950229,-0.311552,0.000000,0.000000,0.174340,-0.531735,0.828772,0.000000,-0.257661,0.785861,0.562168,0.000000,-1645135.177693,5017641.092113,3565356.754143,1],    "boundingVolume": {    "region": [1.887546,0.596913,1.887698,0.597098,0.000000,8.814296]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1401024.b3dm"}}}