{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949226,-0.314594,0.000000,0.000000,0.175874,-0.530665,0.829134,0.000000,-0.260291,0.785378,0.561632,0.000000,-1661929.038185,5014544.516737,3561946.049483,1],    "boundingVolume": {    "region": [1.890757,0.596303,1.890894,0.596410,0.000000,6.353858]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/13_1416663.b3dm"}}}