Mercurial > octave
view scripts/plot/draw/waterfall.m @ 23084:ef4d915df748
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 23 Jan 2017 14:27:48 -0500 |
parents | 3a2b891d0b33 e9a0469dedd9 |
children | 092078913d54 |
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## Copyright (C) 2013-2016 Mike Miller ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {} waterfall (@var{x}, @var{y}, @var{z}) ## @deftypefnx {} {} waterfall (@var{z}) ## @deftypefnx {} {} waterfall (@dots{}, @var{c}) ## @deftypefnx {} {} waterfall (@dots{}, @var{prop}, @var{val}, @dots{}) ## @deftypefnx {} {} waterfall (@var{hax}, @dots{}) ## @deftypefnx {} {@var{h} =} waterfall (@dots{}) ## Plot a 3-D waterfall plot. ## ## A waterfall plot is similar to a @code{meshz} plot except only ## mesh lines for the rows of @var{z} (x-values) are shown. ## ## The wireframe mesh is plotted using rectangles. The vertices of the ## rectangles [@var{x}, @var{y}] are typically the output of @code{meshgrid}. ## over a 2-D rectangular region in the x-y plane. @var{z} determines the ## height above the plane of each vertex. If only a single @var{z} matrix is ## given, then it is plotted over the meshgrid ## @code{@var{x} = 1:columns (@var{z}), @var{y} = 1:rows (@var{z})}. ## Thus, columns of @var{z} correspond to different @var{x} values and rows ## of @var{z} correspond to different @var{y} values. ## ## The color of the mesh is computed by linearly scaling the @var{z} values ## to fit the range of the current colormap. Use @code{caxis} and/or ## change the colormap to control the appearance. ## ## Optionally the color of the mesh can be specified independently of @var{z} ## by supplying a color matrix, @var{c}. ## ## Any property/value pairs are passed directly to the underlying surface ## object. ## ## If the first argument @var{hax} is an axes handle, then plot into this axis, ## rather than the current axes returned by @code{gca}. ## ## The optional return value @var{h} is a graphics handle to the created ## surface object. ## ## @seealso{meshz, mesh, meshc, contour, surf, surface, ribbon, meshgrid, hidden, shading, colormap, caxis} ## @end deftypefn ## Author: Mike Miller <mtmiller@ieee.org> function h = waterfall (varargin) htmp = meshz (varargin{:}); set (htmp, "meshstyle", "row"); if (nargout > 0) h = htmp; endif endfunction %!demo %! clf; %! colormap ("default"); %! Z = peaks (); %! waterfall (Z); %! title ("waterfall() plot of peaks() function"); %!demo %! clf; %! colormap ("default"); %! Z = peaks (); %! subplot (1,2,1) %! meshz (Z); %! daspect ([2.5, 2.5, 1]); %! title ("meshz() plot"); %! subplot (1,2,2) %! waterfall (Z); %! daspect ([2.5, 2.5, 1]); %! title ("waterfall() plot");