{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948932,-0.315480,0.000000,0.000000,0.116426,-0.350199,0.929412,0.000000,-0.292941,0.881137,0.371190,0.000000,-1869279.846860,5622609.159473,2352739.886959,1],    "boundingVolume": {    "region": [1.891704,0.380233,1.891813,0.380348,0.000000,28.075980]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/24_3666.b3dm"}}}