{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948529,-0.316690,0.000000,0.000000,0.116758,-0.349705,0.929556,0.000000,-0.294111,0.880901,0.370825,0.000000,-1876743.896678,5621097.922604,2350423.323686,1],    "boundingVolume": {    "region": [1.892951,0.379792,1.893118,0.380003,0.000000,4.686000]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/2_3734.b3dm"}}}