{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950264,-0.311445,0.000000,0.000000,0.173730,-0.530076,0.829962,0.000000,-0.257945,0.787029,0.560401,0.000000,-1646941.922264,5025065.776194,3554123.786970,1],    "boundingVolume": {    "region": [1.887460,0.594811,1.887559,0.594928,0.000000,8.790312]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/5_1451891.b3dm"}}}