{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949830,-0.312766,0.000000,0.000000,0.174585,-0.530192,0.829709,0.000000,-0.258960,0.786427,0.560778,0.000000,-1653421.680329,5021228.956733,3556520.951333,1],    "boundingVolume": {    "region": [1.888818,0.595260,1.888982,0.595391,0.000000,8.809494]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1355878.b3dm"}}}