{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950664,-0.310224,0.000000,0.000000,0.173194,-0.530742,0.829648,0.000000,-0.256836,0.787059,0.560868,0.000000,-1639862.738075,5025266.207405,3557092.507865,1],    "boundingVolume": {    "region": [1.886167,0.595377,1.886283,0.595491,0.000000,8.582423]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1451135.b3dm"}}}