{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948992,-0.315299,0.000000,0.000000,0.175979,-0.529667,0.829750,0.000000,-0.261070,0.785773,0.560717,0.000000,-1666892.955069,5017048.343652,3556135.128854,1],    "boundingVolume": {    "region": [1.891520,0.595157,1.891615,0.595347,0.000000,8.615729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/30_1073283.b3dm"}}}