Create a sequence of eReefs maps and optionally assemble an animation

Repeatedly calls [map_ereefs()] over a date range, saving frame images when requested and optionally assembling them into a GIF or MP4 animation.

map_ereefs_movie(
  var_name = "true_colour",
  start_date = c(2015, 12, 1),
  end_date = c(2016, 3, 31),
  layer = "surface",
  output_dir = "ToAnimate",
  save_frames = TRUE,
  animation_format = c("none", "gif", "mp4", "mp3"),
  animation_file = NA,
  fps = 2,
  Land_map = FALSE,
  input_file = "catalog",
  input_grid = NA,
  scale_col = "viridis",
  scale_lim = c(NA, NA),
  plot_style = c("polygon", "smooth"),
  smooth_pixels = 600,
  zoom = 6,
  box_bounds = c(NA, NA, NA, NA),
  suppress_print = TRUE,
  stride = "daily",
  verbosity = 0,
  label_towns = TRUE,
  strict_bounds = FALSE,
  mark_points = NULL,
  gbr_poly = FALSE,
  add_arrows = FALSE,
  max_u = NA,
  scale_arrows = NA,
  show_bathy = FALSE,
  contour_breaks = c(5, 10, 20)
)

Arguments

var_name: Variable to plot. Special values `"true_colour"` and `"plume"` are also supported.
start_date: Start of the animation period.
end_date: End of the animation period.
layer: Layer selector. Use a positive layer index, a negative depth below mean sea level, or `"surface"`/`"bottom"`.
output_dir: Directory in which to save frame images and animation outputs.
save_frames: Logical; save individual frame PNG files.
animation_format: One of `"none"`, `"gif"`, `"mp4"`, or legacy `"mp3"` (which is treated as `"mp4"` with a warning).
animation_file: Optional output filename for the assembled animation.
fps: Frames per second for assembled animations.
Land_map: Logical; add a simple land underlay where available.
input_file: NetCDF file path, OPeNDAP URL, or THREDDS catalog URL.
input_grid: Optional alternative source for grid metadata.
scale_col: Colour scale specification. Defaults to `"viridis"` for scalar maps.
scale_lim: Numeric colour limits. If left as `NA`, limits are inferred from the extracted data.
plot_style: Either `"polygon"` or `"smooth"`.
smooth_pixels: Resolution used for `"smooth"` display maps.
zoom: Deprecated legacy argument retained for backward compatibility.
box_bounds: Optional bounds in the form `c(longitude_min, longitude_max, latitude_min, latitude_max)`.
suppress_print: Logical; if `TRUE`, suppresses automatic printing.
stride: Temporal stride used to choose frames.
verbosity: Verbosity level for progress messages.
label_towns: Logical; add town labels where available.
strict_bounds: Deprecated legacy argument retained for backward compatibility.
mark_points: Optional locations to mark on the map.
gbr_poly: Logical; add GBR polygon overlay when available.
add_arrows: Deprecated legacy argument retained for backward compatibility.
max_u: Deprecated legacy argument retained for backward compatibility.
scale_arrows: Deprecated legacy argument retained for backward compatibility.
show_bathy: Deprecated legacy argument retained for backward compatibility.
contour_breaks: Deprecated legacy argument retained for backward compatibility.

Value

A list containing the final plot, averaged plotting polygons, saved frame filenames, animation filename, and the colour scale limits used across frames.