vic_fish

An example polygon layer of Victoria’s Local Government Areas (LGAs)
after applying a Focus–Glue–Context (FGC) fisheye transformation.
This dataset illustrates how local detail can be magnified around a chosen
focus point while maintaining geographic context across the state.

datasets

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) <doi:10.1145/22339.22342>, Furnas (2006) <doi:10.1145/1124772.1124921> and Yamamoto et al. (2009) <doi:10.1145/1653771.1653788>.

Alex Nguyen

mapycusmaximus

Focus-Glue-Context Fisheye Transformations for Spatial
Visualization

Dianne Cook

Michael Lydeamore

vic_fish function

An <code><a href="https://r-spatial.github.io/sf/reference/sf.html">sf</a></code> object with:<dl>
<dt>LGA_NAME</dt>
<dd>Character, name of the LGA (upper case).</dd><dt>geometry</dt>
<dd><code>MULTIPOLYGON</code> / <code>POLYGON</code> geometries in projected CRS (EPSG:3111).</dd>
</dl>

Format

Fisheye-Distorted Victoria LGAs (sf) — vic_fish

An <code><a href='https://r-spatial.github.io/sf/reference/sf.html'>sf</a></code> object with:<dl>
<dt>LGA_NAME</dt>
<dd>Character, name of the LGA (upper case).</dd>

<dt>geometry</dt>
<dd><code>MULTIPOLYGON</code> / <code>POLYGON</code> geometries in projected CRS (EPSG:3111).</dd>


</dl>

vic_fish: Fisheye-Distorted Victoria LGAs (`sf`)

Description

Usage

Arguments

Format

Details

See Also

Examples