Control Parameters for Drawing Curved Connecting Segments

Set the contol parameters for drawing xurved segments connecting grobs to labels in addlabel.glyphGrob.

Usage

ggmultiglyph.segment.control(
  segment.curvature = 0,
  segment.angle = 90,
  segment.ncp = 1,
  segment.shape = 0.5,
  segment.square = TRUE,
  segment.squareShape = 1,
  segment.inflect = FALSE,
  segment.debug = FALSE,
  segment.colour = "black",
  segment.size = 0.2,
  segment.linetype = 1,
  segment.arrow = NULL
)

Arguments

segment.curvature

Numeric, negative for left-hand and positive for right-hand curves, 0 for straight lines. Defaults to 0.

segment.angle

0-180, less than 90 skews control points toward the start point. Defaults to 90.

segment.ncp

Number of control points to make a smoother curve. Defaults to 1.

segment.shape

Curve shape by control points approximation/interpolation (1 for cubic B-spline, -1 for Catmull-Rom spline). Defaults to 0.5.

segment.square

TRUE to place control points in city-block fashion, FALSE for oblique placement. Default is TRUE.

segment.squareShape

Shape of the curve relative to additional control points inserted if square is TRUE. Defaults to 1.

segment.inflect

Curve inflection at the midpoint. Default is FALSE.

segment.debug

Display the curve debug information. Default is FALSE.

segment.colour

The line segment color. Default is "black".

segment.size

The line segment thickness. Default is 0.5 mm.

segment.linetype

The line segment solid, dashed, etc. Default is 1 (solid).

segment.arrow

Render line segment as an arrow with grid::arrow().

Value

A list with the following components to control the repel algorithm corresponding to the same in Arguments.

segment.curvature

segment.angle

segment.ncp

segment.shape

segment.square

segment.squareShape

segment.inflect

segment.debug

segment.colour

segment.size

segment.linetype

segment.arrow

See also

addlabel.glyphGrob