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fplot3d(2) Scilab Function fplot3d(2)
NAME
fplot3d - 3D plot of a surface defined by an external
CALLING SEQUENCE
fplot3d(xr,yr,f,[theta,alpha,leg,flag,ebox])
PARAMETERS
xr : matrix of size (1,n1)
yr : matrix of size (1,n2).
f : external (z=f(x,y))
theta, alpha
: real (spherical coordinates in degrees of the observation
point)
leg : string (caption for each axis. @ is a field separator e.g.
"X@Y@Z")
flag : real vector of size three flag=[mode,type,box]
mode
: integer (treatment of hidden parts)
mode >=2 the hidden parts of the surface are removed and the
surface is painted in gray (from low gray to black
according to the value of mode)
mode = 1 The hidden parts of the surface are drawn
mode <= 0 Only the shadow of the surface is painted with a gray
level depending on mode
type
: Scaling
if type = 0
the plot is made using the current 3D scaling ( set
by a previous call to param3d, plot3d, contour,
plot3d1
if type = 1,
the value of ebox=[xmin,xmax,ymin,ymax,zmin,zmax]
specifies the boundaries
else the boundaries are computed with the given datas.
box
: frame display around the plot.
box=0 : Nothing is drawn around the plot
box=1 :not implemented
box=2 : only the axes behind the surface are drawn
box=3 : a box surrounding the surface is drawn and captions
are added
DESCRIPTION
This routines plots a surface defined by an external f. the values of f on
the grid defined by xr.yr are first computed using feval, then control is
passed to the primitive plot3d.
Enter the command fplot3d() to see a demo.
AUTHOR
J.Ph.C.
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