polygon.fullhatch: Create hatch area of one polygon

In rpkgs/gg.layers: ggplot layers

Create hatch area of one polygon

Description

Create hatch area of one polygon

Create one line for hatch area of one polygon

Usage

polygon.fullhatch(
  x,
  y = NULL,
  density,
  angle,
  ..debug.hatch = FALSE,
  fillOddEven = FALSE,
  ...
)

polygon.onehatch(
  x,
  y,
  x0,
  y0,
  xd,
  yd,
  ..debug.hatch = FALSE,
  fillOddEven = FALSE,
  ...
)

Arguments

x, y	vectors containing the coordinates of the vertices of the polygon.
density	the density of shading lines, in lines per inch. The default value of NULL means that no shading lines are drawn. A zero value of density means no shading nor filling whereas negative values and NA suppress shading (and so allow color filling).
angle	the slope of shading lines, given as an angle in degrees (counter-clockwise).
..debug.hatch	for drawing when debugging function
fillOddEven	logical controlling the polygon shading mode: see below for details. Default FALSE.
...	graphical parameters such as xpd, lend, ljoin and lmitre can be given as arguments.
x0	parameter as issued from polygon.fullhatch
y0	parameter as issued from polygon.fullhatch
xd	parameter as issued from polygon.fullhatch
yd	parameter as issued from polygon.fullhatch

Examples

## Not run: 
res <- polygon.fullhatch(x, density = 10, angle = 45)
arrows(res$lx1, res$ly1, res$lx2, res$ly2, col = "red", code = 0)

## End(Not run)

rpkgs/gg.layers documentation built on Sept. 14, 2024, 11:07 p.m.