{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949538,-0.313651,0.000000,0.000000,0.174975,-0.529714,0.829932,0.000000,-0.259763,0.786399,0.560446,0.000000,-1658548.578020,5021043.341994,3554409.420922,1],    "boundingVolume": {    "region": [1.889751,0.594791,1.889913,0.595057,0.000000,8.803873]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1457188.b3dm"}}}