| classify_zones | Classify Coordinates into Focus, Glue, or Context Zones |
| conn_fish | Fisheye-Distorted Hospital–RACF Connections ('sf') |
| create_test_grid | Create a Regular Test Grid of Coordinates |
| fisheye_fgc | Apply Focus–Glue–Context Fisheye Transformation |
| plot_fisheye_fgc | Visualize Focus–Glue–Context (FGC) Fisheye Transformation |
| sf_fisheye | Radial fisheye warp for 'sf'/'sfc' objects (auto-CRS + flexible centers) |
| st_transform_custom | Apply a custom coordinate transform to an sf/sfc object (POINT/LINESTRING/POLYGON/MULTIPOLYGON) |
| vic | Victoria Local Government Areas ('sf') |
| vic_fish | Fisheye-Distorted Victoria LGAs ('sf') |