This is a generalisation of
geom_circle() that allows you to draw
ellipses at a specified angle and center relative to the coordinate system.
Apart from letting you draw regular ellipsis, the stat is using the
generalised formula for superellipses which can be utilised by setting the
m2 aesthetics. If you only set the m1 the m2 value will follow
that to ensure a symmetric appearance.
stat_ellip( mapping = NULL, data = NULL, geom = "circle", position = "identity", n = 360, na.rm = FALSE, show.legend = NA, inherit.aes = TRUE, ... ) geom_ellipse( mapping = NULL, data = NULL, stat = "ellip", position = "identity", n = 360, na.rm = FALSE, show.legend = NA, inherit.aes = TRUE, ... )
Set of aesthetic mappings created by
The data to be displayed in this layer. There are three options:
The geometric object to use display the data
Position adjustment, either as a string, or the result of a call to a position adjustment function.
The number of points to sample along the ellipse.
logical. Should this layer be included in the legends?
Other arguments passed on to
The statistical transformation to use on the data for this layer, as a string.
geom_arc understand the following aesthetics (required aesthetics are in bold):
The coordinates for the points along the ellipse
# Basic usage ggplot() + geom_ellipse(aes(x0 = 0, y0 = 0, a = 10, b = 3, angle = 0)) + coord_fixed()# Rotation # Note that it expects radians and rotates the ellipse counter-clockwise ggplot() + geom_ellipse(aes(x0 = 0, y0 = 0, a = 10, b = 3, angle = pi / 4)) + coord_fixed()# Draw a super ellipse ggplot() + geom_ellipse(aes(x0 = 0, y0 = 0, a = 6, b = 3, angle = -pi / 3, m1 = 3)) + coord_fixed()