{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949307,-0.314350,0.000000,0.000000,0.175463,-0.529880,0.829723,0.000000,-0.260276,0.786007,0.560757,0.000000,-1661823.441275,5018548.000748,3556390.003600,1],    "boundingVolume": {    "region": [1.890500,0.595247,1.890637,0.595354,0.000000,8.762143]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1368423.b3dm"}}}