{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949111,-0.314942,0.000000,0.000000,0.116077,-0.349809,0.929602,0.000000,-0.292502,0.881486,0.370709,0.000000,-1866476.043860,5624826.947833,2349683.326493,1],    "boundingVolume": {    "region": [1.891137,0.379714,1.891246,0.379830,0.000000,59.020756]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76187.b3dm"}}}