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, 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.
`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 0.19.2 Index]