{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949227,-0.314592,0.000000,0.000000,0.175871,-0.530660,0.829138,0.000000,-0.260290,0.785382,0.561626,0.000000,-1661923.708162,5014572.165182,3561909.856221,1],    "boundingVolume": {    "region": [1.890754,0.596296,1.890892,0.596403,0.000000,8.543151]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1416449.b3dm"}}}