{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948388,-0.317111,0.000000,0.000000,0.116437,-0.348230,0.930149,0.000000,-0.294692,0.881340,0.369319,0.000000,-1880444.024168,5623874.936228,2340867.872719,1],    "boundingVolume": {    "region": [1.893426,0.378237,1.893530,0.378316,0.000000,41.465812]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/18_12920.b3dm"}}}