1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
.TH champ1 2 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
champ1 - 2D vector field plot with colored arrows
.SH CALLING SEQUENCE
.nf
champ1(x,y,fx,fy,[arfact,rect,strf])
.fi
.SH PARAMETERS
.TP 8
x,y
: two vectors which define the grid.
.TP
fx
: a matrix which describes the x component of the vector field. \fVfx(i,j)\fR
is the x component of the vector field at point \fV(x(i),y(j))\fR.
.TP
fy
: a matrix which describes the y component of the vector field. \fVfy(i,j)\fR
is the y component of the vector field at point \fV(x(i),y(j))\fR.
.TP
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).
.TP
rect
: a vector \fVrect=[xmin,ymin,xmax,ymax]\fR which gives the boundaries of the
graphics frame to use.
.TP
strf
: a string of length 3 "xyz" which has the same meaning as the \fVstrf\fR
parameter of \fVplot2d\fR. The first character x has no effect with \fVchamp1\fR.
.SH DESCRIPTION
\fVchamp1\fR 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 \fVchamp\fR.
Enter the command \fVchamp1()\fR to see a demo.
.SH EXAMPLE
.nf
xset("use color",1)
champ1(-5:5,-5:5,rand(11,11),rand(11,11),2,[-10,-10,10,10],"021")
.fi
.SH SEE ALSO
champ, fchamp, plot2d
.SH AUTHOR
J.Ph.C.
|
