Plot one layer on its own

The habitat or the barrier by itself, rather than combined as gg_barrier_habitat_interpatch_dist() draws them. For looking at what went into an analysis, and at a scenario layer against the layer it replaces.

Usage

gg_layer(layer, kind = c("habitat", "barrier"), title = NULL)

Arguments

layer

A SpatRaster. Cells equal to 1 are the layer; everything else is background, whether it is 0 or NA.

kind

Which layer this is, "habitat" or "barrier". Decides the fill and the background.

title

Plot title. Defaults to kind, sentence case.

Value

A ggplot.

Details

kind picks the colours, so a layer looks the same here as it does in the combined map. A barrier is white there, read as cuts through the interpatch zone, so a barrier drawn alone is white on that same green: white on white would be nothing at all.

See also

gg_barrier_habitat_interpatch_dist() for the combined map, and urbio_colours() for the palette this draws from.

Examples

gg_layer(example_habitat(), "habitat")
#> <SpatRaster> resampled to 500554 cells.


gg_layer(example_barrier(), "barrier")
#> <SpatRaster> resampled to 500554 cells.


# a scenario layer, titled for what it changes
gg_layer(example_barrier(), "barrier", title = "Scenario: new roads")
#> <SpatRaster> resampled to 500554 cells.