R: Plot Map

plot_map {rayshader} | R Documentation

## Plot Map

### Description

Displays the map in the current device.

### Usage

    plot_map(
      hillshade,
      rotate = 0,
      asp = 1,
      title_text = NA,
      title_offset = c(20, 20),
      title_color = "black",
      title_size = 30,
      title_font = "sans",
      title_style = "normal",
      title_bar_color = NULL,
      title_bar_alpha = 0.5,
      title_position = "northwest",
      keep_user_par = FALSE,
      ...
    )

### Arguments

`hillshade` | Hillshade to be plotted.
`rotate` | Default '0'. Rotates the output. Possible values: '0', '90', '180', '270'.
`asp` | Default '1'. Aspect ratio of the resulting plot. Use 'asp = 1/cospi(mean_latitude/180)' to rescale lat/long at higher latitudes to the correct the aspect ratio.
`title_text` | Default 'NULL'. Text. Adds a title to the image, using 'magick::image_annotate()'.
`title_offset` | Default 'c(20,20)'. Distance from the top-left (default, 'gravity' direction in image_annotate) corner to offset the title.
`title_color` | Default 'black'. Font color.
`title_size` | Default '30'. Font size in pixels.
`title_font` | Default 'sans'. String with font family such as "sans", "mono", "serif", "Times", "Helvetica", "Trebuchet", "Georgia", "Palatino" or "Comic Sans".
`title_style` | Default 'normal'. Font style (e.g. 'italic').
`title_bar_color` | Default 'NULL'. If a color, this will create a colored bar under the title.
`title_bar_alpha` | Default '0.5'. Transparency of the title bar.
`title_position` | Default 'northwest'. Position of the title.
`keep_user_par` | Default ‘TRUE'. Whether to keep the user’s 'par()' settings. Set to 'FALSE' if you want to set up a multi-pane plot (e.g. set 'par(mfrow)').
`...` | Additional arguments to pass to the 'raster::plotRGB' function that displays the map.

### Examples

    #Plotting the Monterey Bay dataset with bathymetry data

    water_palette = colorRampPalette(c("darkblue", "dodgerblue", "lightblue"))(200)
    bathy_hs = height_shade(montereybay, texture = water_palette)

    #Set everything below 0m to water palette
    montereybay %>%
     sphere_shade(zscale=10) %>%
     add_overlay(generate_altitude_overlay(bathy_hs, montereybay, 0, 0))  %>%
     add_shadow(ray_shade(montereybay,zscale=50),0.3) %>%
     plot_map()

    #Correcting the aspect ratio for the latitude of Monterey Bay

    extent_mb = attr(montereybay,"extent")
    mean_latitude = mean(c(extent_mb@ymax,extent_mb@ymin))

    montereybay %>%
     sphere_shade(zscale=10) %>%
     add_overlay(generate_altitude_overlay(bathy_hs, montereybay, 0, 0))  %>%
     add_shadow(ray_shade(montereybay,zscale=50),0.3) %>%
     plot_map(asp = 1/cospi(mean_latitude/180))

[Package rayshader version 0.24.10 Index]