cross {matRiks}

Coordinates of a cross

Description

Define the coordinates for drawing a cross

Usage

cross(
  size.x = sqrt(square()$size.x[[1]]^2/2),
  size.y = size.x,
  lwd = 3,
  lty = 1
)

X(size.x = sqrt(square()$size.x[[1]]^2/2), size.y = size.x, lwd = 3, lty = 1)

Arguments

size.x

numeric, define the semi-major axis of the ellipse within which the figure is inscribed. Default is sqrt(square()$ size.x[[1]]^2 /2)

size.y

numeric, define the semi-minor axis of the ellipse within which the figure is inscribed. Default is size.x.

lwd

integer, define the line width of the figure. Default is 3

lty

integer, define the line type of the figure, default is 1 (solid line

Value

Return the coordinates for drawing a cross

Return the coordinates for drawing an X

Functions

• X(): Coordinates of an X

  Define the coordinates for drawing an X

Examples

# default coordinates of an horizontal line
cross()
# draw a vertical line with different lty
draw(cross(lty = 2))
# default coordinates of an X
X()
# draw an X with different lty
draw(X(lty = 2))