{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948977,-0.315344,0.000000,0.000000,0.175974,-0.529567,0.829814,0.000000,-0.261128,0.785822,0.560621,0.000000,-1667262.814653,5017361.216724,3555524.386212,1],    "boundingVolume": {    "region": [1.891568,0.595041,1.891663,0.595231,0.000000,8.814698]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1074683.b3dm"}}}