{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952581,-0.304285,0.000000,0.000000,0.113391,-0.354977,0.927973,0.000000,-0.282103,0.883141,0.374807,0.000000,-1800141.269264,5635442.491464,2375683.913328,1],    "boundingVolume": {    "region": [1.879910,0.384124,1.880058,0.384253,0.000000,12.988139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/20_39374.b3dm"}}}