{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948762,-0.315992,0.000000,0.000000,0.176429,-0.529725,0.829617,0.000000,-0.261601,0.785455,0.560914,0.000000,-1670289.914279,5015024.501740,3557387.254882,1],    "boundingVolume": {    "region": [1.892250,0.595378,1.892346,0.595601,0.000000,8.463032]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/14_1071586.b3dm"}}}