{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897664,-0.440681,0.000000,0.000000,0.285492,-0.581546,0.761773,0.000000,-0.334750,0.681884,0.650366,0.000000,-2138111.796365,4355319.922343,4126203.369163,1],    "boundingVolume": {    "region": [2.027077,0.707953,2.027229,0.708181,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796887.b3dm"}}}