{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950043,-0.312120,0.000000,0.000000,0.115529,-0.351651,0.928975,0.000000,-0.289683,0.881750,0.372292,0.000000,-1848496.802177,5626530.151629,2359729.206587,1],    "boundingVolume": {    "region": [1.888157,0.381426,1.888283,0.381529,0.000000,10.372041]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_66661.b3dm"}}}