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mapycusmaximus (version 1.0.0)

Focus-Glue-Context Fisheye Transformations for Spatial Visualization

Description

Focus-glue-context (FGC) fisheye transformations to two-dimensional coordinates and spatial vector geometries. Implements a smooth radial distortion that enlarges a focal region, transitions through a glue ring, and preserves outside context. Methods build on generalized fisheye views and focus+context mapping. For more details see Furnas (1986) , Furnas (2006) and Yamamoto et al. (2009) .

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Version

Install

install.packages('mapycusmaximus')

Version

1.0.0

License

MIT + file LICENSE

Maintainer

Alex Nguyen

Last Published

December 19th, 2025

Functions in mapycusmaximus (1.0.0)

classify_zones

Classify Coordinates into Focus, Glue, or Context Zones
conn_fish

Fisheye-Distorted Hospital–RACF Connections (sf)
plot_fisheye_fgc

Visualize Focus–Glue–Context (FGC) Fisheye Transformation
st_transform_custom

Apply a custom coordinate transform to an sf/sfc object (POINT/LINESTRING/POLYGON/MULTIPOLYGON)
sf_fisheye

Radial fisheye warp for sf/sfc objects (auto-CRS + flexible centers)
create_test_grid

Create a Regular Test Grid of Coordinates
fisheye_fgc

Apply Focus–Glue–Context Fisheye Transformation
vic_fish

Fisheye-Distorted Victoria LGAs (sf)
vic

Victoria Local Government Areas (sf)