filledellipse {shape} | R Documentation |
plots (part of) outer and inner ellipses and colors inbetween; color can be a palette
filledellipse(rx1=1, rx2=0, ry1=rx1, ry2=NULL, mid=c(0,0), dr=0.01, angle=0, from=-pi, to=pi, col=femmecol(100), values=NULL, zlim=NULL, lwd=2, lcol=NA, ...)
rx1 |
horizontal radius of outer ellipse. |
rx2 |
horizontal radius of inner ellipse. |
ry1 |
vertical radius of outer ellipse. |
ry2 |
vertical radius of inner ellipse. |
mid |
midpoint of ellipse. |
dr |
size of segments, in radians, to draw ellipse (decrease for smoother). |
angle |
rotation angle, degrees. |
from |
starting angle for ellipse segment, radians. |
to |
final angle for ellipse 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. |
draws (part of) an outer and inner ellipse, as specified by inner and outer radiusses:
rx1
,ry1
: horizontal and vertical radiusses of outer ellipse;
rx2
,ry2
: same for inner ellipse.
Here "horizontal" and "vertical" denote the position BEFORE rotation
Fills with a palette of colors inbetween
values
: if not NULL
, a matrix providing (radius,z-values)
couples, used for coloring.
Here radius are positive values denoting the relative distance between
the shapes centre and edge.
The radiusses are rescaled to be in [0,1] if needed.
z-values (2nd column of values
) together with zlim
and
col
denote the coloration level.
Colors in col
will be interpolated to the z-values and used to
color an interval as given by the input radiusses.
If rx2
, the radius of the inner ellipse is 0, the ellipse is full.
Karline Soetaert <k.soetaert@nioo.knaw.nl>
color <-greycol(50) dr <- 0.05 emptyplot(xlim=c(-2,2),ylim=c(-2,2),col=color[length(color)], main="filledellipse") filledellipse(rx1=1,mid=c(1,1) ,dr=dr, col=shadepalette(endcol="darkblue")) filledellipse(rx1=1,ry1=0.5,mid=c(-1,-1),dr=dr,angle=90, col=shadepalette(endcol="darkred")) filledellipse(rx1=1,ry1=0.5,rx2=0.5,dr=dr,mid=c(0,0), col=c(rev(color),color)) filledellipse(rx1=0.5,mid=c(1,-1),dr=dr,from=pi, to=1.5*pi, col=rev(shadepalette(endcol="black"))) filledellipse(mid=c(-1,1)) emptyplot(xlim=c(-2,2),ylim=c(-2,2),main="filledellipse") filledellipse(rx1=0.75,mid=c(-1,1),col=greycol(100) ,dr=dr, values=cbind (1:100,(1:100)^0.5)) filledellipse(rx1=0.75,mid=c(1,1),col=greycol(100) ,dr=dr, values=cbind (1:100,(1:100))) filledellipse(rx1=0.75,mid=c(-1,-1),col=greycol(100),dr=dr, values=cbind (1:100,(1:100)^2)) filledellipse(rx1=0.75,mid=c(1,-1),col=greycol(100) ,dr=dr, values=cbind (1:100,(1:100)^5))