{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948992,-0.315300,0.000000,0.000000,0.175962,-0.529611,0.829789,0.000000,-0.261083,0.785810,0.560659,0.000000,-1666978.487875,5017283.967826,3555765.080077,1],    "boundingVolume": {    "region": [1.891522,0.595086,1.891616,0.595277,0.000000,8.814698]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1073930.b3dm"}}}