adds a colored and rotated ellipse to a plot
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. The segment is drawn counterclockwise. The default is draw a full ellipse. |
col |
color palette to be used; also allowed are two extremes or one value. |
values |
if not |
zlim |
Only if |
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 <karline.soetaert@nioz.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))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.