{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949629,-0.313377,0.000000,0.000000,0.175165,-0.530803,0.829196,0.000000,-0.259304,0.785770,0.561540,0.000000,-1655624.263928,5017044.601856,3561365.486552,1],    "boundingVolume": {    "region": [1.889494,0.596205,1.889593,0.596287,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443874.b3dm"}}}