{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950475,-0.310802,0.000000,0.000000,0.173501,-0.530588,0.829683,0.000000,-0.257326,0.786936,0.560817,0.000000,-1642989.723060,5024477.532678,3556765.851056,1],    "boundingVolume": {    "region": [1.886784,0.595313,1.886883,0.595430,0.000000,8.760952]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1345275.b3dm"}}}