{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951865,-0.306517,0.000000,0.000000,0.112580,-0.349608,0.930107,0.000000,-0.284834,0.884530,0.369426,0.000000,-1817540.225053,5644235.383916,2341545.324511,1],    "boundingVolume": {    "region": [1.882246,0.378331,1.882410,0.378451,0.000000,20.735773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_45615.b3dm"}}}