This set of scales defines new alpha scales for edge geoms equivalent to the
ones already defined by ggplot2. See ggplot2::scale_alpha() for
more information. The different geoms will know whether to use edge scales or
the standard scales so it is not necessary to write edge_alpha in
the call to the geom - just use alpha.
scale_edge_alpha(..., range = c(0.1, 1))scale_edge_alpha_continuous(..., range = c(0.1, 1))
scale_edge_alpha_discrete(..., range = c(0.1, 1))
scale_edge_alpha_binned(..., range = c(0.1, 1))
scale_edge_alpha_manual(..., values, breaks = waiver(), na.value = NA)
scale_edge_alpha_identity(..., guide = "none")
A ggproto object inheriting from Scale
Other arguments passed on to continuous_scale(), binned_scale(),
or discrete_scale() as appropriate, to control name, limits,
breaks, labels and so forth.
Output range of alpha values. Must lie between 0 and 1.
a set of aesthetic values to map data values to. The values
will be matched in order (usually alphabetical) with the limits of the
scale, or with breaks if provided. If this is a named vector, then the
values will be matched based on the names instead. Data values that don't
match will be given na.value.
One of:
NULL for no breaks
waiver() for the default breaks (the scale limits)
A character vector of breaks
A function that takes the limits as input and returns breaks as output
The aesthetic value to use for missing (NA) values
Guide to use for this scale. Defaults to "none".
Other scale_edge_*:
scale_edge_colour,
scale_edge_fill,
scale_edge_linetype(),
scale_edge_shape(),
scale_edge_size(),
scale_edge_width(),
scale_label_size()