{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949730,-0.313069,0.000000,0.000000,0.115371,-0.349990,0.929622,0.000000,-0.290769,0.882080,0.370658,0.000000,-1855418.607117,5628618.847204,2349362.588649,1],    "boundingVolume": {    "region": [1.889150,0.379627,1.889288,0.379808,0.000000,42.444313]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73489.b3dm"}}}