{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949339,-0.314253,0.000000,0.000000,0.175666,-0.530676,0.829171,0.000000,-0.260021,0.785506,0.561578,0.000000,-1660200.666001,5015363.121906,3561601.820514,1],    "boundingVolume": {    "region": [1.890417,0.596250,1.890516,0.596332,0.000000,8.422915]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1358351.b3dm"}}}