Plot Cattle GPS Fixes on an Interactive Leaflet Map

Creates a leaflet map of GPS fixes with optional grouping by a blocking variable and optional timeline playback via leaflet.extras2.

Usage

grz_map(
  data,
  lon = "lon",
  lat = "lat",
  datetime = "datetime",
  block = NULL,
  group = NULL,
  state_col = NULL,
  state_colors = c(inactive = "#d7191c", active = "#1a9641"),
  state_legend_title = "State",
  timeline = FALSE,
  popup_fields = c("sensor_id", "datetime"),
  provider = "Esri.WorldImagery",
  point_radius = 3,
  point_opacity = 0.7,
  max_points = NULL,
  max_blocks = NULL,
  sample_n = NULL,
  max_block = NULL,
  seed = 1,
  large_n = 5000L,
  block_n = 20L,
  warnings = TRUE
)

Arguments

data: Data frame containing GPS points.
lon: Name of longitude column.
lat: Name of latitude column.
datetime: Name of datetime column.
block: Deprecated alias for group.
group: Optional grouping column(s) for color/layer separation.
state_col: Optional state column for fixed state coloring (for example activity_state_gmm).
state_colors: Named colors for state levels. Defaults to red (inactive) and green (active).
state_legend_title: Legend title used when state_col is provided.
timeline: Logical; if TRUE, render points with an interactive time slider.
popup_fields: Character vector of fields to show in marker popups.
provider: Tile provider name passed to leaflet::addProviderTiles().
point_radius: Marker radius.
point_opacity: Marker opacity.
max_points: Optional max number of points to render (random sample).
max_blocks: Optional maximum number of block groups to plot.
sample_n: Deprecated alias for max_points.
max_block: Deprecated alias for max_blocks.
seed: Random seed used for sampling.
large_n: Threshold for large map warning/confirmation.
block_n: Threshold for number of block groups warning/confirmation.
warnings: Logical; if FALSE, bypasses map-size warning prompts.

Value

A leaflet htmlwidget.