{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949070,-0.315065,0.000000,0.000000,0.116158,-0.349902,0.929557,0.000000,-0.292602,0.881405,0.370823,0.000000,-1867114.282458,5624310.622332,2350407.219974,1],    "boundingVolume": {    "region": [1.891267,0.379837,1.891375,0.379952,0.000000,47.690315]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_308.b3dm"}}}