{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950555,-0.310557,0.000000,0.000000,0.173362,-0.530628,0.829686,0.000000,-0.257123,0.787006,0.560811,0.000000,-1641696.881370,5024924.065958,3556732.224789,1],    "boundingVolume": {    "region": [1.886517,0.595308,1.886633,0.595423,0.000000,8.658960]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1345301.b3dm"}}}