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.TH param3d 2 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
param3d - 3D plot of a curve
.SH CALLING SEQUENCE
.nf
param3d(x,y,z,[theta,alpha,leg,flag,ebox])
.fi
.SH PARAMETERS
.TP 15
x,y,z
: three vectors of the same size (points of the parametric curve).
.TP
theta,alpha
: real values giving in degree the spherical coordinates of the
observation point.
.TP
leg
: string defining the captions for each axis with @ as a field separator,
for example "X@Y@Z".
.TP
flag=[type,box]
: \fVtype\fR and \fVbox\fR have the same meaning as in \fVplot3d\fR:
.RS
.TP 5
type
: an integer (scaling).
.RS
.TP 8
type=0
the plot is made using the current 3D scaling (set by a previous call to
\fVparam3d\fR, \fVplot3d\fR, \fVcontour\fR or \fVplot3d1\fR).
.TP
type=1
rescales
automatically 3d boxes with extreme aspect ratios, the boundaries are specified by the value of the optional argument \fVebox\fR.
.TP
type=2
rescales
automatically 3d boxes with extreme aspect ratios, the boundaries are computed using the given data.
.TP
type=3
3d isometric with box bounds given by optional
\fVebox\fR, similarily to \fVtype=1\fR
.TP
type=4
3d isometric bounds derived from the data, to similarily\fVtype=2\fR
.TP
type=5
3d expanded isometric bounds with box bounds given by optional
\fVebox\fR, similarily to \fVtype=1\fR
.TP
type=6
3d expanded isometric bounds derived from the data, similarily to \fVtype=2\fR
.RE
.TP
box
: an integer (frame around the plot).
.RS
.TP
box=0
nothing is drawn around the plot.
.TP
box=1
unimplemented (like box=0).
.TP
box=2
only the axes behind the surface are drawn.
.TP
box=3
a box surrounding the surface is drawn and captions are added.
.TP
box=4
a box surrounding the surface is drawn, captions and axes are added.
.RE
.RE
.TP
ebox
: used when \fVtype\fR in \fVflag\fR is 1. It specifies the boundaries
of the plot as the vector \fV[xmin,xmax,ymin,ymax,zmin,zmax]\fR.
.SH DESCRIPTION
\fVparam3d\fR is used to plot a 3D curve defined by its coordinates \fVx\fR,
\fVy\fR and \fVz\fR.
Use \fVparam3d1\fR to do multiple plots.
Enter the command \fVparam3d()\fR to see a demo.
.SH EXAMPLE
.nf
t=0:0.1:5*%pi;
param3d(sin(t),cos(t),t/10,35,45,"X@Y@Z",[2,3])
.fi
.SH SEE ALSO
param3d1, plot3d
.SH AUTHOR
J.Ph.C.
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