{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950051,-0.312094,0.000000,0.000000,0.174260,-0.530469,0.829600,0.000000,-0.258369,0.786506,0.560940,0.000000,-1649650.911679,5021734.391403,3557551.256096,1],    "boundingVolume": {    "region": [1.888111,0.595455,1.888275,0.595587,0.000000,8.776923]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/14_1455420.b3dm"}}}