add_labels: Add labels to frames
In moveVis: Movement Data Visualization

Description Usage Arguments Value Author(s) See Also Examples

This function adds character labels such as title or axis labels to animation frames created with frames_spatial.

add_labels(
  frames,
  title = waiver(),
  subtitle = waiver(),
  caption = waiver(),
  tag = waiver(),
  x = waiver(),
  y = waiver(),
  verbose = TRUE
)

`frames`	list of `ggplot2` objects, crated with `frames_spatial`.
`title`	character, frame title. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`subtitle`	character, frame subtitle. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`caption`	character, frame caption. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`tag`	character, frame tag. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`x`	character, label of the x axis. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`y`	character, label of the y axis. If `NULL`, an existing title of `frames` is removed. If `waiver()` (default, see `ggplot2::waiver()`), an existing title of `frames` is kept.
`verbose`	logical, if `TRUE`, messages and progress information are displayed on the console (default).

List of frames.

Jakob Schwalb-Willmann

frames_spatial frames_graph animate_frames

library(moveVis)
library(move)

data("move_data", "basemap_data")
m <- align_move(move_data, res = 4, unit = "mins")

# create spatial frames using a custom NDVI base layer
r_list <- basemap_data[[1]]
r_times <- basemap_data[[2]]


frames <- frames_spatial(m, r_list = r_list, r_times = r_times, r_type = "gradient",
                         fade_raster = TRUE)

# add labels to frames:
frames <- add_labels(frames, title = "Example animation using moveVis::add_labels()", 
                     subtitle = "Adding a subtitle to frames created using frames_spatial()",
                     caption = "Projection: Geographical, WGS84. Sources: moveVis examples.",
                     x = "Longitude", y = "Latitude")
# have a look at one frame
frames[[100]]