Add Water — add_water • rayshader

Adds a layer of water to a map.

add_water(hillshade, watermap, color = "imhof1")

Arguments

hillshade: A three-dimensional RGB array.
watermap: Matrix indicating whether water was detected at that point. 1 indicates water, 0 indicates no water.
color: Default imhof1. The water fill color. A hexcode or recognized color string. Also includes built-in colors to match the palettes included in sphere_shade(): (imhof1,imhof2,imhof3,imhof4, desert, bw, and unicorn).

Examples

#Here we even out a portion of the volcano dataset to simulate water:
island_volcano = volcano
island_volcano[island_volcano < mean(island_volcano)] = mean(island_volcano)

#Setting a minimum area avoids classifying small flat areas as water:
if(run_documentation()) {
island_volcano |>
 sphere_shade(texture="imhof3") |>
 add_water(detect_water(island_volcano, min_area = 400),color="imhof3") |>
 plot_map()
}


#We'll do the same thing with the Monterey Bay dataset to fill in the ocean:

montbay_water = montereybay
montbay_water[montbay_water < 0] = 0

if(run_documentation()) {
montereybay |>
 sphere_shade(texture="imhof4") |>
 add_water(detect_water(montbay_water),color="imhof4") |>
 plot_map()
}