{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949674,-0.313239,0.000000,0.000000,0.174763,-0.529846,0.829892,0.000000,-0.259409,0.786474,0.560505,0.000000,-1656288.079377,5021519.643442,3554788.050915,1],    "boundingVolume": {    "region": [1.889317,0.594863,1.889479,0.595129,0.000000,8.782894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357923.b3dm"}}}