Scilab Function
Last update : 18/05/2014
champ1 - 2D vector field plot with colored
arrows
Calling Sequence
- champ1(x,y,fx,fy,[arfact,rect,strf])
Parameters
-
x,y: two vectors which define the grid.
-
fx: a matrix which describes the x component of the vector field.
fx(i,j) is the x component of the vector field at point
(x(i),y(j)).
-
fy: a matrix which describes the y component of the vector field.
fy(i,j) is the y component of the vector field at point
(x(i),y(j)).
-
arfact: an optional argument of type real which gives a scale factor
for the display of the arrow heads on the plot (default value is
1.0).
-
rect: a vector rect=[xmin,ymin,xmax,ymax] which gives
the boundaries of the graphics frame to use.
-
frameflag: controls the computation of the actual coordinate ranges from
the minimal requested values. The associated value should be an
integer ranging from 0 to 8.
-
axesflag: specifies how the axes are drawn. The associated value should
be an integer ranging from 0 to 5.
-
strf: a string of length 3 "xyz" which has the same meaning as the
strf parameter of plot2d. The first
character x has no effect with champ1.
Description
champ1 draws a 2D vector field with colored arrows. The
color of the arrows depends on the intensity of the field.
If you want arrows proportional to the intensity of the field, use
champ.
Enter the command champ1() to see a demo.
Examples
champ1(-5:5,-5:5,rand(11,11),rand(11,11),rect=[-10,-10,10,10],arfact=2)
See Also
champ, fchamp, plot2d,
Author
J.Ph.C.