Mercurial > hg > octave-nkf
annotate scripts/plot/draw/contourf.m @ 17572:7bb76a22cde1
maint: Split scripts/plot directory into 4 pieces.
scripts/gui : user-interface functions
scripts/plot/appearance : functions controlling plot appearance
scripts/plot/draw : plotting functions which produce graphs
scripts/plot/util : low-level plotting functions and utilities.
* scripts/gui/guidata.m, scripts/gui/guihandles.m, scripts/gui/module.mk,
scripts/gui/private/__file_filter__.m,
scripts/gui/private/__fltk_file_filter__.m,
scripts/gui/private/__is_function__.m, scripts/gui/private/__uigetdir_fltk__.m,
scripts/gui/private/__uigetfile_fltk__.m,
scripts/gui/private/__uiobject_split_args__.m,
scripts/gui/private/__uiputfile_fltk__.m, scripts/gui/uicontextmenu.m,
scripts/gui/uicontrol.m, scripts/gui/uigetdir.m, scripts/gui/uigetfile.m,
scripts/gui/uimenu.m, scripts/gui/uipanel.m, scripts/gui/uipushtool.m,
scripts/gui/uiputfile.m, scripts/gui/uiresume.m, scripts/gui/uitoggletool.m,
scripts/gui/uitoolbar.m, scripts/gui/uiwait.m, scripts/gui/waitbar.m,
scripts/gui/waitforbuttonpress.m: Moved from scripts/plot to scripts/gui
* scripts/plot/appearance/__clabel__.m,
scripts/plot/appearance/__getlegenddata__.m, scripts/plot/appearance/axis.m,
scripts/plot/appearance/box.m, scripts/plot/appearance/caxis.m,
scripts/plot/appearance/clabel.m, scripts/plot/appearance/daspect.m,
scripts/plot/appearance/diffuse.m, scripts/plot/appearance/grid.m,
scripts/plot/appearance/gtext.m, scripts/plot/appearance/hidden.m,
scripts/plot/appearance/legend.m,
scripts/plot/appearance/orient.m, scripts/plot/appearance/pbaspect.m,
scripts/plot/appearance/private/__axis_label__.m,
scripts/plot/appearance/private/__axis_limits__.m,
scripts/plot/appearance/shading.m, scripts/plot/appearance/specular.m,
scripts/plot/appearance/text.m, scripts/plot/appearance/title.m,
scripts/plot/appearance/view.m, scripts/plot/appearance/whitebg.m,
scripts/plot/appearance/xlabel.m, scripts/plot/appearance/xlim.m,
scripts/plot/appearance/ylabel.m, scripts/plot/appearance/ylim.m,
scripts/plot/appearance/zlabel.m, scripts/plot/appearance/zlim.m:
Moved from scripts/plot to subdir appearance.
* scripts/plot/draw/area.m, scripts/plot/draw/bar.m, scripts/plot/draw/barh.m,
scripts/plot/draw/colorbar.m, scripts/plot/draw/comet.m,
scripts/plot/draw/comet3.m, scripts/plot/draw/compass.m,
scripts/plot/draw/contour.m, scripts/plot/draw/contour3.m,
scripts/plot/draw/contourc.m, scripts/plot/draw/contourf.m,
scripts/plot/draw/cylinder.m, scripts/plot/draw/ellipsoid.m,
scripts/plot/draw/errorbar.m, scripts/plot/draw/ezcontour.m,
scripts/plot/draw/ezcontourf.m, scripts/plot/draw/ezmesh.m,
scripts/plot/draw/ezmeshc.m, scripts/plot/draw/ezplot.m,
scripts/plot/draw/ezplot3.m, scripts/plot/draw/ezpolar.m,
scripts/plot/draw/ezsurf.m, scripts/plot/draw/ezsurfc.m,
scripts/plot/draw/feather.m, scripts/plot/draw/fill.m,
scripts/plot/draw/fplot.m, scripts/plot/draw/hist.m,
scripts/plot/draw/isocolors.m, scripts/plot/draw/isonormals.m,
scripts/plot/draw/isosurface.m, scripts/plot/draw/line.m,
scripts/plot/draw/loglog.m, scripts/plot/draw/loglogerr.m,
scripts/plot/draw/mesh.m, scripts/plot/draw/meshc.m, scripts/plot/draw/meshz.m,
scripts/plot/draw/pareto.m,
scripts/plot/draw/patch.m, scripts/plot/draw/pcolor.m,
scripts/plot/draw/peaks.m, scripts/plot/draw/pie.m, scripts/plot/draw/pie3.m,
scripts/plot/draw/plot.m, scripts/plot/draw/plot3.m,
scripts/plot/draw/plotmatrix.m, scripts/plot/draw/plotyy.m,
scripts/plot/draw/polar.m, scripts/plot/draw/private/__add_datasource__.m,
scripts/plot/draw/private/__bar__.m, scripts/plot/draw/private/__contour__.m,
scripts/plot/draw/private/__errcomm__.m,
scripts/plot/draw/private/__errplot__.m,
scripts/plot/draw/private/__ezplot__.m,
scripts/plot/draw/private/__interp_cube__.m,
scripts/plot/draw/private/__line__.m,
scripts/plot/draw/private/__marching_cube__.m,
scripts/plot/draw/private/__patch__.m, scripts/plot/draw/private/__pie__.m,
scripts/plot/draw/private/__plt__.m, scripts/plot/draw/private/__quiver__.m,
scripts/plot/draw/private/__scatter__.m, scripts/plot/draw/private/__stem__.m,
scripts/plot/draw/quiver.m, scripts/plot/draw/quiver3.m,
scripts/plot/draw/rectangle.m, scripts/plot/draw/ribbon.m,
scripts/plot/draw/rose.m, scripts/plot/draw/scatter.m,
scripts/plot/draw/scatter3.m, scripts/plot/draw/semilogx.m,
scripts/plot/draw/semilogxerr.m, scripts/plot/draw/semilogy.m,
scripts/plot/draw/semilogyerr.m, scripts/plot/draw/shrinkfaces.m,
scripts/plot/draw/slice.m, scripts/plot/draw/sombrero.m,
scripts/plot/draw/sphere.m, scripts/plot/draw/stairs.m,
scripts/plot/draw/stem.m, scripts/plot/draw/stem3.m,
scripts/plot/draw/stemleaf.m, scripts/plot/draw/surf.m,
scripts/plot/draw/surface.m, scripts/plot/draw/surfc.m,
scripts/plot/draw/surfl.m, scripts/plot/draw/surfnorm.m,
scripts/plot/draw/tetramesh.m, scripts/plot/draw/trimesh.m,
scripts/plot/draw/triplot.m, scripts/plot/draw/trisurf.m,
scripts/plot/draw/waterfall.m: Moved from plot/ to subdir draw.
* scripts/plot/util/__actual_axis_position__.m,
scripts/plot/util/__default_plot_options__.m,
scripts/plot/util/__gnuplot_drawnow__.m,
scripts/plot/util/__next_line_color__.m,
scripts/plot/util/__next_line_style__.m,
scripts/plot/util/__plt_get_axis_arg__.m, scripts/plot/util/__pltopt__.m,
scripts/plot/util/allchild.m, scripts/plot/util/ancestor.m,
scripts/plot/util/axes.m, scripts/plot/util/cla.m, scripts/plot/util/clf.m,
scripts/plot/util/close.m, scripts/plot/util/closereq.m,
scripts/plot/util/colstyle.m, scripts/plot/util/copyobj.m,
scripts/plot/util/figure.m, scripts/plot/util/findall.m,
scripts/plot/util/findfigs.m, scripts/plot/util/findobj.m,
scripts/plot/util/gca.m, scripts/plot/util/gcbf.m, scripts/plot/util/gcbo.m,
scripts/plot/util/gcf.m, scripts/plot/util/gco.m, scripts/plot/util/ginput.m,
scripts/plot/util/gnuplot_binary.in, scripts/plot/util/graphics_toolkit.m,
scripts/plot/util/hdl2struct.m, scripts/plot/util/hggroup.m,
scripts/plot/util/hold.m, scripts/plot/util/isaxes.m,
scripts/plot/util/isfigure.m, scripts/plot/util/ishghandle.m,
scripts/plot/util/ishold.m, scripts/plot/util/isprop.m,
scripts/plot/util/linkprop.m, scripts/plot/util/meshgrid.m,
scripts/plot/util/ndgrid.m,
scripts/plot/util/newplot.m, scripts/plot/util/print.m,
scripts/plot/util/printd.m, scripts/plot/util/private/__add_default_menu__.m,
scripts/plot/util/private/__fltk_ginput__.m,
scripts/plot/util/private/__fltk_print__.m,
scripts/plot/util/private/__ghostscript__.m,
scripts/plot/util/private/__gnuplot_get_var__.m,
scripts/plot/util/private/__gnuplot_ginput__.m,
scripts/plot/util/private/__gnuplot_has_feature__.m,
scripts/plot/util/private/__gnuplot_has_terminal__.m,
scripts/plot/util/private/__gnuplot_open_stream__.m,
scripts/plot/util/private/__gnuplot_print__.m,
scripts/plot/util/private/__gnuplot_version__.m,
scripts/plot/util/private/__go_draw_axes__.m,
scripts/plot/util/private/__go_draw_figure__.m,
scripts/plot/util/private/__print_parse_opts__.m,
scripts/plot/util/private/__tight_eps_bbox__.m, scripts/plot/util/refresh.m,
scripts/plot/util/refreshdata.m, scripts/plot/util/saveas.m,
scripts/plot/util/shg.m, scripts/plot/util/struct2hdl.m,
scripts/plot/util/subplot.m: Moved from plot to subdir util.
* etc/HACKING: Updated directory structure info.
* scripts/Makefile.am, scripts/plot/appearance/module.mk,
scripts/plot/draw/module.mk, scripts/plot/util/module.mk:
Added new directories to build system.
| author | Rik <rik@octave.org> |
|---|---|
| date | Fri, 04 Oct 2013 17:09:08 -0700 |
| parents | scripts/plot/contourf.m@177147bf7b55 |
| children | d63878346099 |
| rev | line source |
|---|---|
|
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1 ## Copyright (C) 2007-2012 Kai Habel |
| 7042 | 2 ## Copyright (C) 2003 Shai Ayal |
| 3 ## | |
| 7164 | 4 ## This file is part of Octave. |
| 5 ## | |
| 6 ## Octave is free software; you can redistribute it and/or modify it | |
| 7042 | 7 ## under the terms of the GNU General Public License as published by |
| 7164 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
| 9 ## your option) any later version. | |
| 7042 | 10 ## |
| 7164 | 11 ## Octave is distributed in the hope that it will be useful, but |
| 7042 | 12 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 ## General Public License for more details. | |
| 15 ## | |
| 16 ## You should have received a copy of the GNU General Public License | |
| 7164 | 17 ## along with Octave; see the file COPYING. If not, see |
| 18 ## <http://www.gnu.org/licenses/>. | |
| 7042 | 19 |
| 20 ## -*- texinfo -*- | |
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21 ## @deftypefn {Function File} {} contourf (@var{z}) |
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22 ## @deftypefnx {Function File} {} contourf (@var{z}, @var{vn}) |
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23 ## @deftypefnx {Function File} {} contourf (@var{x}, @var{y}, @var{z}) |
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24 ## @deftypefnx {Function File} {} contourf (@var{x}, @var{y}, @var{z}, @var{vn}) |
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25 ## @deftypefnx {Function File} {} contourf (@dots{}, @var{style}) |
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26 ## @deftypefnx {Function File} {} contourf (@var{hax}, @dots{}) |
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27 ## @deftypefnx {Function File} {[@var{c}, @var{h}] =} contourf (@dots{}) |
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28 ## Create a 2-D contour plot with filled intervals. |
| 7042 | 29 ## |
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30 ## Plot level curves (contour lines) of the matrix @var{z} and fill the region |
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31 ## between lines with colors from the current colormap. |
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32 ## |
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33 ## The level curves are taken from the contour matrix @var{c} computed by |
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34 ## @code{contourc} for the same arguments; see the latter for their |
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35 ## interpretation. |
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36 ## |
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37 ## The appearance of contour lines can be defined with a line style @var{style} |
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38 ## in the same manner as @code{plot}. Only line style and color are used; |
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39 ## Any markers defined by @var{style} are ignored. |
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40 ## |
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41 ## If the first argument @var{hax} is an axes handle, then plot into this axis, |
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42 ## rather than the current axes returned by @code{gca}. |
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43 ## |
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44 ## The optional output @var{c} are the contour levels in @code{contourc} format. |
| 7042 | 45 ## |
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46 ## The optional return value @var{h} is a graphics handle to the hggroup |
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47 ## comprising the contour lines. |
| 7042 | 48 ## |
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49 ## The following example plots filled contours of the @code{peaks} function. |
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50 ## |
| 7042 | 51 ## @example |
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52 ## @group |
| 7042 | 53 ## [x, y, z] = peaks (50); |
| 54 ## contourf (x, y, z, -7:9) | |
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55 ## @end group |
| 7042 | 56 ## @end example |
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57 ## @seealso{ezcontourf, contour, contourc, contour3, clabel, meshc, surfc, caxis, colormap, plot} |
| 7042 | 58 ## @end deftypefn |
| 59 | |
| 60 ## Author: Kai Habel <kai.habel@gmx.de> | |
| 7327 | 61 ## Author: Shai Ayal <shaiay@users.sourceforge.net> |
| 7042 | 62 |
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63 function [c, h] = contourf (varargin) |
| 7042 | 64 |
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65 [hax, varargin] = __plt_get_axis_arg__ ("contour", varargin{:}); |
| 7042 | 66 |
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67 oldfig = []; |
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68 if (! isempty (hax)) |
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69 oldfig = get (0, "currentfigure"); |
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70 endif |
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71 unwind_protect |
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72 hax = newplot (hax); |
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73 |
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74 [ctmp, htmp] = __contour__ (hax, "none", "fill", "on", |
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75 "linecolor", "black", varargin{:}); |
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76 unwind_protect_cleanup |
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77 if (! isempty (oldfig)) |
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78 set (0, "currentfigure", oldfig); |
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79 endif |
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80 end_unwind_protect |
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81 |
| 7042 | 82 if (nargout > 0) |
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83 c = ctmp; |
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84 h = htmp; |
| 7042 | 85 endif |
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86 |
| 7042 | 87 endfunction |
| 7245 | 88 |
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89 |
| 7245 | 90 %!demo |
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91 %! clf; |
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92 %! colormap ('default'); |
| 7245 | 93 %! [x, y, z] = peaks (50); |
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94 %! contourf (x, y, z, -7:9); |
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95 %! title ({'contourf() plot (filled contour lines)'; 'Z = peaks()'}); |
| 7327 | 96 |
| 97 %!demo | |
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98 %! clf; |
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99 %! colormap ('default'); |
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100 %! [theta, r] = meshgrid (linspace (0,2*pi,64), linspace (0,1,64)); |
| 7331 | 101 %! [X, Y] = pol2cart (theta, r); |
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102 %! Z = sin (2*theta) .* (1-r); |
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103 %! contourf (X, Y, abs (Z), 10); |
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104 %! title ({'contourf() plot'; 'polar fcn: Z = sin (2*theta) * (1-r)'}); |
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105 |
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106 %!demo |
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107 %! clf; |
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108 %! colormap ('default'); |
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109 %! x = linspace (-2, 2); |
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110 %! [x, y] = meshgrid (x); |
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111 %! z = sqrt (x.^2 + y.^2) ./ (x.^2 + y.^2 + 1); |
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112 %! contourf (x, y, z, [0.4, 0.4]); |
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113 %! title ('Hole should be filled with the background color'); |
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114 |