{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949480,-0.313829,0.000000,0.000000,0.175424,-0.530741,0.829181,0.000000,-0.259673,0.785632,0.561563,0.000000,-1657979.934818,5016164.060234,3561508.969222,1],    "boundingVolume": {    "region": [1.889970,0.596233,1.890069,0.596314,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444389.b3dm"}}}