plotCones2D: Plot a cone defined by a point in 2D.

In relund/gMOIP: Tools for 2D and 3D Plots of Single and Multi-Objective Linear/Integer Programming Models

Plot a cone defined by a point in 2D.

Description

The cones are defined as the point plus/minus rays of R2.

Usage

plotCones2D(
  pts,
  drawPoint = TRUE,
  drawLines = TRUE,
  drawPolygons = TRUE,
  direction = 1,
  rectangle = FALSE,
  drawPlot = TRUE,
  m = apply(pts, 2, min) - 5,
  M = apply(pts, 2, max) + 5,
  ...
)

Arguments

pts	A matrix with a point in each row.
drawPoint	Draw the points defining the cone.
drawLines	Draw lines of the cone.
drawPolygons	Draw polygons of the cone.
direction	Ray direction. If i'th entry is positive, consider the i'th column of pts plus a value greater than on equal zero (minimize objective $i$). If negative, consider the i'th column of pts minus a value greater than on equal zero (maximize objective $i$).
rectangle	Draw the cone as a rectangle.
drawPlot	Draw the ggplot. Set to FALSE if you want to combine hulls in a single plot.
m	Minimum values of the bounding box.
M	Maximum values of the bounding box.
...	Further arguments passed to plotHull2D

Value

A ggplot object

Examples

library(ggplot2)
plotCones2D(c(4,4), drawLines = FALSE, drawPoint = TRUE,
           argsGeom_point = list(col = "red", size = 10),
           argsGeom_polygon = list(alpha = 0.5), rectangle = TRUE)
plotCones2D(c(1,1), rectangle = FALSE)
plotCones2D(matrix(c(3,3,2,2), ncol = 2, byrow = TRUE))

## The Danish flag
lst <- list(argsGeom_polygon = list(alpha = 0.85, fill = "red"),
            drawPlot = FALSE, drawPoint = FALSE, drawLines = FALSE)
p1 <- do.call(plotCones2D, args = c(list(c(2,4), direction = 1), lst))
p2 <- do.call(plotCones2D, args = c(list(c(1,2), direction = -1), lst))
p3 <- do.call(plotCones2D, args = c(list(c(2,2), direction = c(1,-1)), lst))
p4 <- do.call(plotCones2D, args = c(list(c(1,4), direction = c(-1,1)), lst))
ggplot() + p1 + p2 + p3 + p4 + theme_void()

relund/gMOIP documentation built on Feb. 23, 2024, 12:11 p.m.