{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951420,-0.307895,0.000000,0.000000,0.115035,-0.355468,0.927583,0.000000,-0.285329,0.881689,0.375782,0.000000,-1820727.246434,5626193.130840,2381868.920717,1],    "boundingVolume": {    "region": [1.883728,0.385203,1.883824,0.385278,0.000000,9.553438]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/22/50_38746.b3dm"}}}