sp_line function

Line properties

Create a sp_line object that describes line properties.

sp_line(
  color = "transparent",
  lwd = 1,
  lty = "solid",
  linecmpd = "sng",
  lineend = "rnd",
  linejoin = "round",
  headend = sp_lineend(type = "none"),
  tailend = sp_lineend(type = "none")
)

## S3 method for class 'sp_line'
print(x, ...)

## S3 method for class 'sp_line'
update(
  object,
  color,
  lwd,
  lty,
  linecmpd,
  lineend,
  linejoin,
  headend,
  tailend,
  ...
)

Arguments

• color: line color - a single character value specifying a valid color (e.g. "#000000" or "black").

• lwd: line width (in point) - 0 or positive integer value.

• lty: single character value specifying the line type. Expected value is one of the following : default 'solid'

  or 'dot' or 'dash' or 'lgDash'

  or 'dashDot' or 'lgDashDot' or 'lgDashDotDot'

  or 'sysDash' or 'sysDot' or 'sysDashDot'

  or 'sysDashDotDot'.

• linecmpd: single character value specifying the compound line type. Expected value is one of the following : default 'sng'

  or 'dbl' or 'tri' or 'thinThick'

  or 'thickThin'

• lineend: single character value specifying the line end style Expected value is one of the following : default 'rnd'

  or 'sq' or 'flat'

• linejoin: single character value specifying the line join style Expected value is one of the following : default 'round'

  or 'bevel' or 'miter'

• headend: a sp_lineend object specifying line head end style

• tailend: a sp_lineend object specifying line tail end style

• x, object: sp_line object

• ...: further arguments - not used

Returns

a sp_line object

Examples

sp_line()
sp_line(color = "red", lwd = 2)
sp_line(lty = "dot", linecmpd = "dbl")
print( sp_line (color="red", lwd = 2) )
obj <- sp_line (color="red", lwd = 2)
update( obj, linecmpd = "dbl" )

See Also

sp_lineend

Other functions for defining shape properties: sp_lineend()