{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871403,-0.490568,0.000000,0.000000,0.211791,-0.376207,0.902005,0.000000,-0.441938,0.785021,0.434089,0.000000,-2820518.539987,5010132.374156,2751879.938830,1],    "boundingVolume": {    "region": [2.083481,0.448986,2.083594,0.449067,0.000000,71.686345]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_223126.b3dm"}}}