{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949119,-0.314918,0.000000,0.000000,0.175961,-0.530322,0.829335,0.000000,-0.260623,0.785481,0.561334,0.000000,-1664042.965973,5015196.361171,3560053.622913,1],    "boundingVolume": {    "region": [1.891098,0.595943,1.891235,0.596050,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1360798.b3dm"}}}