2D comet animated plot.
comet(y)
comet(x,y)
comet(x,fun)
comet(x,y,p)
comet(x,fun,p)
comet(...,"colors",c)
: :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. :
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: :ahead mark that shows the current (x(i),y(i)) position. : :abody that shows the trailing curve that follows the head: the
(x(i-k:i),y(i-k:i)) part of the curve.
: :atail 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.
t = `linspace`_(0,10*%pi,500);
`clf`_();`set`_(`gca`_(),"isoview","on"); //set isoview axes
comet(t.*`sin`_(t),t.*`cos`_(t))
t = `linspace`_(0,10*%pi,500)';
`clf`_();comet(t.*`sin`_(t),[t.*`sin`_(2*t) t.*`sin`_(3*t)])
function y=traj(x),y=1.5*`sin`_(x^2),endfunction
`clf`_();comet(`linspace`_(0,5,500),traj)
`clf`_();comet(`linspace`_(-2,4,500),(%s-3)/(%s^3+2*%s^2+1))
Version Description 5.3.2 Function comet introduced. .. _paramfplot2d: paramfplot2d.html .. _comet3d: comet3d.html