shape (version 1.1)

filledcircle: adds colored circle to a plot

Description

plots (part of) outer and inner circle and colors inbetween; color can be a palette

Usage

filledcircle(r1=1, r2=0, mid=c(0,0), dr=0.01, from=-pi, to=pi, 
  col=femmecol(100), values=NULL, zlim=NULL, lwd=2, lcol=NA, ...)

Arguments

r1

radius of outer circle

r2

radius of inner circle

mid

midpoint of circle

dr

size of segments, in radians, to draw circle (decrease for smoother)

from

starting angle for circle segment, radians

to

final angle for circle segment, radians

col

color palette to be used; also allowed are two extremes or one value

values

if not null, a matrix providing (radius,z-values) couples, used for coloring.

zlim

Only if values is not NULL: the minimum and maximum z values for which colors should be plotted, defaulting to the range of the finite values of the second column of *values*.

lwd

width of external line

lcol

line color

...

arguments passed to R-function "polygon"

Details

see filledellipse for details

See Also

filledshape, filledcylinder, filledellipse

Examples

color <-graycol(n=50)
  dr    <- 0.05
  emptyplot(xlim=c(-2,2),col=color[length(color)],main="filledcircle")
  filledcircle(r1=1,mid=c(1,1),dr=dr,
               col=shadepalette(endcol="darkblue")) 
  filledcircle(r1=1,mid=c(-1,-1),dr=dr,
               col=shadepalette(endcol="darkred"))
  filledcircle(r1=1,r2=0.5,mid=c(0,0),dr=dr,col=c(rev(color),color))
  filledcircle(r1=1,mid=c(1,-1),dr=dr,
               col=intpalette(c("red","blue","orange"),100)) 
  filledcircle(mid=c(-1,1))
  
  emptyplot(main="filledcircle")
  for (i in seq(0,0.45,0.05)) filledcircle(r1=i+0.05,r2=i,
                                           mid=c(0.5,0.5),col=i*20)