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Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
contour2di
compute level curves of a surface on a 2D plot
Calling Sequence
[xc,yc]=contour2di(x,y,z,nz)
Arguments
- x,y
two real row vectors of size n1 and n2: the grid.
- z
real matrix of size (n1,n2), the values of the function.
- nz
the level values or the number of levels.
If
nz
is an integer, its value gives the number of level curves equally spaced from zmin to zmax as follows:z= zmin + (1:nz)*(zmax-zmin)/(nz+1)
Note that the
zmin
andzmax
levels are not drawn (generically they are reduced to points) but they can be added withIf
nz
is a vector,nz(i)
gives the value of the ith level curve.
- xc,yc
vectors of identical sizes containing the contours definitions. See below for details.
Description
contour2di
computes level curves of a surface z=f(x,y)
on
a 2D plot. The values of f(x,y)
are given by the matrix z
at the grid points defined by x
and y
.
xc(1)
contains the level associated with first contour path,
yc(1)
contains the number N1
of points defining this contour path
and (xc(1+(1:N1))
, yc(1+(1:N1))
) contain the coordinates
of the paths points.
The second path begin at xc(2+N1)
and yc(2+N1)
and so on.
Examples
See Also
- contour — level curves on a 3D surface
- fcontour — level curves on a 3D surface defined by a function
- fcontour2d — level curves of a surface defined by a function on a 2D plot
- contour2d — level curves of a surface on a 2D plot
- plot2d — 2D plot
- xset — set values of the graphics context. This function is obsolete.
Authors
J.Ph.C.
<< contour2d | 2d_plot | contourf >> |