{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950388,-0.311065,0.000000,0.000000,0.173962,-0.531501,0.829002,0.000000,-0.257330,0.786213,0.561828,0.000000,-1643023.751173,5019878.834105,3563194.353153,1],    "boundingVolume": {    "region": [1.887061,0.596545,1.887159,0.596643,0.000000,8.784401]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392089.b3dm"}}}