{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949097,-0.314984,0.000000,0.000000,0.176080,-0.530557,0.829159,0.000000,-0.260622,0.785295,0.561595,0.000000,-1664038.959419,5014011.928074,3561712.291454,1],    "boundingVolume": {    "region": [1.891168,0.596259,1.891305,0.596365,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1448105.b3dm"}}}