{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949761,-0.312975,0.000000,0.000000,0.115591,-0.350777,0.929298,0.000000,-0.290579,0.881798,0.371478,0.000000,-1854208.468766,5626829.728731,2354562.848345,1],    "boundingVolume": {    "region": [1.889051,0.380509,1.889189,0.380691,0.000000,4.567877]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_70986.b3dm"}}}