{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949229,-0.314585,0.000000,0.000000,0.175859,-0.530636,0.829156,0.000000,-0.260291,0.785401,0.561599,0.000000,-1661925.418335,5014692.812358,3561740.343603,1],    "boundingVolume": {    "region": [1.890747,0.596264,1.890885,0.596371,0.000000,8.543151]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1448245.b3dm"}}}