{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949329,-0.314285,0.000000,0.000000,0.175694,-0.530703,0.829148,0.000000,-0.260040,0.785476,0.561611,0.000000,-1660322.109379,5015169.057221,3561817.024065,1],    "boundingVolume": {    "region": [1.890450,0.596291,1.890549,0.596373,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1415987.b3dm"}}}