{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949675,-0.313236,0.000000,0.000000,0.174766,-0.529861,0.829882,0.000000,-0.259403,0.786465,0.560521,0.000000,-1656250.748815,5021462.048204,3554886.140758,1],    "boundingVolume": {    "region": [1.889313,0.594882,1.889476,0.595147,0.000000,8.774948]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357687.b3dm"}}}