{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948976,-0.315349,0.000000,0.000000,0.175981,-0.529579,0.829805,0.000000,-0.261129,0.785812,0.560635,0.000000,-1667270.415552,5017297.412929,3555610.277912,1],    "boundingVolume": {    "region": [1.891573,0.595057,1.891668,0.595247,0.000000,8.814698]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1074400.b3dm"}}}