{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950350,-0.311183,0.000000,0.000000,0.173806,-0.530802,0.829482,0.000000,-0.257578,0.786641,0.561115,0.000000,-1644602.478850,5022598.692420,3558660.873490,1],    "boundingVolume": {    "region": [1.887184,0.595674,1.887284,0.595790,0.000000,8.763194]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1428737.b3dm"}}}