39 lines
1.2 KiB
R
39 lines
1.2 KiB
R
|
## ----setup, echo=FALSE, results='hide'-----------------------------------
|
||
|
|
library(knitr)
|
||
|
|
opts_chunk$set(message=FALSE, fig.width=4, fig.height=3)
|
||
|
|
|
||
|
|
## ----basic---------------------------------------------------------------
|
||
|
|
library(gridExtra)
|
||
|
|
library(grid)
|
||
|
|
library(grid)
|
||
|
|
N <- 5
|
||
|
|
xy <- polygon_regular(N)*2
|
||
|
|
|
||
|
|
# draw multiple polygons
|
||
|
|
g <- ngonGrob(unit(xy[,1],"cm") + unit(0.5,"npc"),
|
||
|
|
unit(xy[,2],"cm") + unit(0.5,"npc"),
|
||
|
|
n=seq_len(N)+2, gp=gpar(fill=1:N))
|
||
|
|
|
||
|
|
grid.newpage()
|
||
|
|
grid.draw(g)
|
||
|
|
|
||
|
|
## ----rotated-------------------------------------------------------------
|
||
|
|
g2 <- ngonGrob(unit(xy[,1],"cm") + unit(0.5,"npc"),
|
||
|
|
unit(xy[,2],"cm") + unit(0.5,"npc"),
|
||
|
|
n=seq_len(N)+2, ar=seq_len(N),
|
||
|
|
phase=0, angle=pi/(seq_len(N)+2),
|
||
|
|
size=1:N+5, gp=gpar(fill=1:N))
|
||
|
|
|
||
|
|
grid.newpage()
|
||
|
|
grid.draw(g2)
|
||
|
|
|
||
|
|
## ----ellipse-------------------------------------------------------------
|
||
|
|
g3 <- ellipseGrob(unit(xy[,1],"cm") + unit(0.5,"npc"),
|
||
|
|
unit(xy[,2],"cm") + unit(0.5,"npc"),
|
||
|
|
angle=-2*seq(0,N-1)*pi/N+pi/2,
|
||
|
|
size=5, ar=3, gp=gpar(fill=1:N))
|
||
|
|
|
||
|
|
grid.newpage()
|
||
|
|
grid.draw(g3)
|
||
|
|
|