{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950555,-0.310558,0.000000,0.000000,0.173608,-0.531379,0.829154,0.000000,-0.256958,0.786496,0.561602,0.000000,-1640644.798159,5021683.779294,3561756.625466,1],    "boundingVolume": {    "region": [1.886527,0.596271,1.886625,0.596370,0.000000,8.635224]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_1427927.b3dm"}}}