{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950833,-0.309705,0.000000,0.000000,0.172960,-0.531007,0.829528,0.000000,-0.256369,0.787084,0.561047,0.000000,-1636882.842316,5025428.264997,3558228.241110,1],    "boundingVolume": {    "region": [1.885607,0.595540,1.885752,0.595760,0.000000,8.818346]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/11_1421666.b3dm"}}}