{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949109,-0.314947,0.000000,0.000000,0.175959,-0.530261,0.829375,0.000000,-0.260659,0.785511,0.561275,0.000000,-1664275.549662,5015387.112232,3559678.683792,1],    "boundingVolume": {    "region": [1.891128,0.595872,1.891265,0.595979,0.000000,12.889832]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1361625.b3dm"}}}