This set of scales defines new shape scales for edge geoms equivalent to the
ones already defined by ggplot2. See
more information. The different geoms will know whether to use edge scales or
the standard scales so it is not necessary to write
the call to the geom - just use
scale_edge_shape(..., solid = TRUE)
scale_edge_shape_discrete(..., solid = TRUE)
scale_edge_shape_identity(..., guide = "none")
Arguments passed on to
A palette function that when called with a single integer
argument (the number of levels in the scale) returns the values that
they should take (e.g.,
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
A character vector that defines possible values of the scale
and their order.
Should unused factor levels be omitted from the scale?
TRUE, uses the levels that appear in the data;
FALSE uses all the levels in the factor.
Unlike continuous scales, discrete scales can easily show
missing values, and do so by default. If you want to remove missing values
from a discrete scale, specify
na.translate = FALSE.
na.translate = TRUE, what value aesthetic
value should missing be displayed as? Does not apply to position scales
NA is always placed at the far right.
The names of the aesthetics that this scale works with.
The name of the scale that should be used for error messages
associated with this scale.
The name of the scale. Used as the axis or legend title. If
waiver(), the default, the name of the scale is taken from the first
mapping used for that aesthetic. If
NULL, the legend title will be
NULL for no labels
waiver() for the default labels computed by the
A character vector giving labels (must be same length as
A function that takes the breaks as input and returns labels
A function used to create a guide or its name. See
guides() for more information.
The super class to use for the constructed scale
Should the shapes be solid,
TRUE, or hollow,
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
Guide to use for this scale.
A ggproto object inheriting from