{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951784,-0.306770,0.000000,0.000000,0.114316,-0.354677,0.927974,0.000000,-0.284407,0.882403,0.374804,0.000000,-1814842.463531,5630733.215339,2375665.297618,1],    "boundingVolume": {    "region": [1.882546,0.384148,1.882641,0.384223,0.000000,7.839365]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/9/35_39973.b3dm"}}}