{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950349,-0.311185,0.000000,0.000000,0.173796,-0.530768,0.829506,0.000000,-0.257587,0.786663,0.561080,0.000000,-1644658.680571,5022737.799535,3558440.046524,1],    "boundingVolume": {    "region": [1.887186,0.595632,1.887286,0.595748,0.000000,8.707822]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1343961.b3dm"}}}