{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899349,-0.437232,0.000000,0.000000,0.282948,-0.582000,0.762376,0.000000,-0.332395,0.683708,0.649659,0.000000,-2123064.324673,4366957.415650,4121700.983752,1],    "boundingVolume": {    "region": [2.023228,0.707081,2.023402,0.707190,0.000000,14.382023]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800770.b3dm"}}}