{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950384,-0.311078,0.000000,0.000000,0.173967,-0.531493,0.829006,0.000000,-0.257342,0.786213,0.561822,0.000000,-1643098.810212,5019883.058062,3563154.062442,1],    "boundingVolume": {    "region": [1.887075,0.596537,1.887172,0.596636,0.000000,8.784401]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1391834.b3dm"}}}