plotdap

The plotdap package makes it easy to map data acquired via the rerddap functions tabledap() or griddap().

Installation

You can install the released version of plotdap from CRAN with:

install.packages("plotdap")

The development version is available from Github and can be installed with:

devtools::install_github('rmendels/plotdap')

Functions

plotdap has six main functions and can produce plots in both base graphics and ggplot2 graphics, though certain features ony work wih ggplot2:

• plotdap() which sets up the base map:

  • plotdap(method = c("ggplot2", "base"), mapData = maps::map("world", plot = FALSE, fill = TRUE), crs = NULL, datum = sf::st_crs(4326), mapTitle = NULL, mapFill = "gray80", mapColor = "gray90", ...)

• add_tabledap() which adds the results from a rerddap::tabledap() call:

  • add_tabledap(plot, table, var, color = c("#132B43", "#56B1F7"), size = 1.5, shape = 19, animate = FALSE, cumulative = FALSE, ...)

• add_griddap() which adds the results from a rerddap::griddap() call:

  • add_griddap(plot, grid, var, fill = "viridis", maxpixels = 10000, time = mean, animate = FALSE, cumulative = FALSE, ...)

• add_ggplot() allows customization of the plot when ggplot2 is used:

  • add_ggplot(plot, ...)

• bbox_set() which resets the bounding box as well as prepare the object foe interactive plotting:

  • ‘bbox_set(plotobj, landmask = TRUE, xlim = NULL, ylim = NULL, interactive = FALSE)’

• add_griddap_contours() which adds contours to a add_griddap() object:

  • add_griddap_contours <- function(p, data, var, n_breaks = 10L, breaks = NULL, lon_col = "longitude", lat_col = "latitude", color = "black", linewidth = 0.3, alpha = 1, crs = 4326L)

Examples

Extensive examples are gven in the vignette, which can also be viewed at:

https://rmendels.github.io/Using_plotdap.html