{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950490,-0.310756,0.000000,0.000000,0.173438,-0.530483,0.829763,0.000000,-0.257312,0.787025,0.560697,0.000000,-1642902.781588,5025046.633604,3556007.055681,1],    "boundingVolume": {    "region": [1.886735,0.595169,1.886834,0.595286,0.000000,8.808242]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1450248.b3dm"}}}