{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943388,-0.331692,0.000000,0.000000,0.185751,-0.528308,0.828485,0.000000,-0.274220,0.779930,0.562594,0.000000,-1750871.741436,4979781.364171,3568060.591949,1],    "boundingVolume": {    "region": [1.908878,0.597511,1.908906,0.597529,0.000000,7.666383]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6.b3dm"}}}