{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944370,-0.328886,0.000000,0.000000,0.183910,-0.528084,0.829038,0.000000,-0.272084,0.781268,0.561774,0.000000,-1737225.694431,4988307.405815,3562852.381113,1],    "boundingVolume": {    "region": [1.905862,0.596492,1.905977,0.596566,0.000000,6.950848]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_130906.b3dm"}}}