{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948989,-0.315310,0.000000,0.000000,0.175982,-0.529654,0.829757,0.000000,-0.261082,0.785777,0.560706,0.000000,-1666968.806512,5017073.411006,3556064.682237,1],    "boundingVolume": {    "region": [1.891533,0.595143,1.891627,0.595334,0.000000,8.615729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/30_1073355.b3dm"}}}