{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897944,-0.440109,0.000000,0.000000,0.282523,-0.576426,0.766755,0.000000,-0.336519,0.686593,0.644472,0.000000,-2149356.843553,4385286.294137,4088703.141113,1],    "boundingVolume": {    "region": [2.026453,0.700298,2.026580,0.700367,0.000000,8.498668]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_851980.b3dm"}}}