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Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
comet
2D comet animated plot.
Calling Sequence
comet(y)
comet(x,y)
comet(x,fun)
comet(x,y,p)
comet(x,fun,p)
comet(...,"colors",c)
Parameters
- x
a real vector or matrix. If omitted, it is assumed to be the vector
1:ny
whereny
is the number of curve points (see below).- y
a real vector or matrix of length.
- p
a real scalar in the interval
[0 1[
. Default value is 0.1.- fun
a scilab function with calling sequence
y=fun(x)
.fun
can also be a polynomial or a rational fraction.- c
a vector of
ny
color index.
Description
If (x,y)
are two vectors with the same number
of elements, this function draws a 2D comet animated plot
showing the progession of the curve
(x(1:k),y(1:k))
for k
varying from 1
to
size(x,'*')
.
The plot is made of three parts:
- a head
mark that shows the current
(x(i),y(i))
position.- a body
that shows the trailing curve that follows the head: the
(x(i-k:i),y(i-k:i))
part of the curve.- a tail
that shows the
(x(1:i-k),y(1:i-k))
part of the curve.
comet(x,fun,...)
is equivalent to comet(x,feval(x,fun),...)
.
comet(...,p)
can be used to set the
relative length of the body. k
is defined
as k = round(p*ny)
.
If y
is a matrix then animated curves
are drawn for each pair (x,y(:,l))
.
In this case ny
is the number of rows
of y
.
If x
and y
are
matrices with identical sizes then animated curves are drawn
for each pair (x(:,l),y(:,l))
. In this
case ny
is the number of rows of
x
and y
.
comet(...,"colors",c)
can be used to set the colors of each curves.
Examples
See Also
- color — returns the color id of a color
- comet3d — 3D comet animated plot.
- paramfplot2d — animated plot of a 2D parametrized curve.
History
Version | Description |
5.3.2 | Function comet introduced. |
Report an issue | ||
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