ggplot_robertsonschart: ggplot Robertson's chart

In GJMeijer/soilmech: R functions and plots for Soil Mechanics teaching

ggplot Robertson's chart

Description

Plot an empty Robertson's chart

Usage

ggplot_robertsonschart(
  Fr = NULL,
  Qtn = NULL,
  group = NULL,
  nFr = 25,
  Fr_lim = c(0.1, 10),
  Qtn_lim = c(1, 1000),
  palette = "Set1",
  alpha = 0.25,
  legend_position = "right"
)

Arguments

Fr	normalised friction values for crosshairs, in %
Qtn	normalised tip resitance values for crosshairs
group	labels for crosshairs
nFr	number of points on curved polygon edges. Fr interval is split linearly
Fr_lim	Fr lower and upper limit of plot
Qtn_lim	Qtn lower and upper limit of plot
palette	colormap to use for coloring different zones
alpha	transparancy of soil polygon fills
legend_position	position of legend

Value

ggplot object

Examples

#empty chart
ggplot_robertsonschart()

#annotated chart
ggplot_robertsonschart(Fr = c(0.5, 2), Qtn = c(200, 50), group = c("A", "B"))

GJMeijer/soilmech documentation built on May 22, 2022, 10:39 a.m.