{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951849,-0.306567,0.000000,0.000000,0.112613,-0.349648,0.930089,0.000000,-0.284875,0.884497,0.369474,0.000000,-1817802.977614,5644023.717795,2341849.493948,1],    "boundingVolume": {    "region": [1.882299,0.378382,1.882463,0.378503,0.000000,18.620205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45825.b3dm"}}}