{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950548,-0.310576,0.000000,0.000000,0.173562,-0.531203,0.829277,0.000000,-0.257011,0.786608,0.561420,0.000000,-1640986.479125,5022398.038914,3560599.730143,1],    "boundingVolume": {    "region": [1.886547,0.596051,1.886644,0.596150,0.000000,8.386551]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426682.b3dm"}}}