Mercurial > octave-nkf
diff scripts/plot/draw/isocolors.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/isocolors.m@eaab03308c0b |
children | d63878346099 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/plot/draw/isocolors.m Fri Oct 04 17:09:08 2013 -0700 @@ -0,0 +1,173 @@ +## Copyright (C) 2009-2012 Martin Helm +## +## 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 {Function File} {[@var{cd}] =} isocolors (@var{c}, @var{v}) +## @deftypefnx {Function File} {[@var{cd}] =} isocolors (@var{x}, @var{y}, @var{z}, @var{c}, @var{v}) +## @deftypefnx {Function File} {[@var{cd}] =} isocolors (@var{x}, @var{y}, @var{z}, @var{r}, @var{g}, @var{b}, @var{v}) +## @deftypefnx {Function File} {[@var{cd}] =} isocolors (@var{r}, @var{g}, @var{b}, @var{v}) +## @deftypefnx {Function File} {[@var{cd}] =} isocolors (@dots{}, @var{p}) +## @deftypefnx {Function File} {} isocolors (@dots{}) +## +## If called with one output argument and the first input argument +## @var{c} is a three-dimensional array that contains color values and +## the second input argument @var{v} keeps the vertices of a geometry +## then return a matrix @var{cd} with color data information for the +## geometry at computed points +## @command{[x, y, z] = meshgrid (1:l, 1:m, 1:n)}. The output argument +## @var{cd} can be taken to manually set FaceVertexCData of a patch. +## +## If called with further input arguments @var{x}, @var{y} and @var{z} +## which are three--dimensional arrays of the same size than @var{c} +## then the color data is taken at those given points. Instead of the +## color data @var{c} this function can also be called with RGB values +## @var{r}, @var{g}, @var{b}. If input argumnets @var{x}, @var{y}, +## @var{z} are not given then again @command{meshgrid} computed values +## are taken. +## +## Optionally, the patch handle @var{p} can be given as the last input +## argument to all variations of function calls instead of the vertices +## data @var{v}. Finally, if no output argument is given then directly +## change the colors of a patch that is given by the patch handle +## @var{p}. +## +## For example: +## +## @example +## function [] = isofinish (p) +## set (gca, "PlotBoxAspectRatioMode", "manual", ... +## "PlotBoxAspectRatio", [1 1 1]); +## set (p, "FaceColor", "interp"); +## ## set (p, "FaceLighting", "flat"); +## ## light ("Position", [1 1 5]); ## Available with JHandles +## endfunction +## +## N = 15; # Increase number of vertices in each direction +## iso = .4; # Change isovalue to .1 to display a sphere +## lin = linspace (0, 2, N); +## [x, y, z] = meshgrid (lin, lin, lin); +## c = abs ((x-.5).^2 + (y-.5).^2 + (z-.5).^2); +## figure (); # Open another figure window +## +## subplot (2,2,1); view (-38, 20); +## [f, v] = isosurface (x, y, z, c, iso); +## p = patch ("Faces", f, "Vertices", v, "EdgeColor", "none"); +## cdat = rand (size (c)); # Compute random patch color data +## isocolors (x, y, z, cdat, p); # Directly set colors of patch +## isofinish (p); # Call user function isofinish +## +## subplot (2,2,2); view (-38, 20); +## p = patch ("Faces", f, "Vertices", v, "EdgeColor", "none"); +## [r, g, b] = meshgrid (lin, 2-lin, 2-lin); +## cdat = isocolors (x, y, z, c, v); # Compute color data vertices +## set (p, "FaceVertexCData", cdat); # Set color data manually +## isofinish (p); +## +## subplot (2,2,3); view (-38, 20); +## p = patch ("Faces", f, "Vertices", v, "EdgeColor", "none"); +## cdat = isocolors (r, g, b, c, p); # Compute color data patch +## set (p, "FaceVertexCData", cdat); # Set color data manually +## isofinish (p); +## +## subplot (2,2,4); view (-38, 20); +## p = patch ("Faces", f, "Vertices", v, "EdgeColor", "none"); +## r = g = b = repmat ([1:N] / N, [N, 1, N]); # Black to white +## cdat = isocolors (x, y, z, r, g, b, v); +## set (p, "FaceVertexCData", cdat); +## isofinish (p); +## @end example +## +## @seealso{isosurface, isonormals} +## @end deftypefn + +## Author: Martin Helm <martin@mhelm.de> + +function varargout = isocolors (varargin) + calc_rgb = false; + switch (nargin) + case 2 + c = varargin{1}; + vp = varargin{2}; + x = 1:size (c, 2); + y = 1:size (c, 1); + z = 1:size (c, 3); + case 4 + calc_rgb = true; + R = varargin{1}; + G = varargin{2}; + B = varargin{3}; + vp = varargin{4}; + x = 1:size (R, 1); + y = 1:size (R, 2); + z = 1:size (R, 3); + case 5 + x = varargin{1}; + y = varargin{2}; + z = varargin{3}; + c = varargin{4}; + vp = varargin{5}; + case 7 + calc_rgb = true; + x = varargin{1}; + y = varargin{2}; + z = varargin{3}; + R = varargin{4}; + G = varargin{5}; + B = varargin{6}; + vp = varargin{7}; + otherwise + print_usage (); + endswitch + if (ismatrix (vp) && columns (vp) == 3) + pa = []; + v = vp; + elseif ( ishandle (vp) ) + pa = vp; + v = get (pa, "Vertices"); + else + error ("isocolors: last argument is not a vertex list or patch handle"); + endif + if (calc_rgb) + new_col = zeros (rows (v), 3); + new_col(:,1) = __interp_cube__ (x, y, z, R, v, "values" ); + new_col(:,2) = __interp_cube__ (x, y, z, G, v, "values" ); + new_col(:,3) = __interp_cube__ (x, y, z, B, v, "values" ); + else + new_col = __interp_cube__ (x, y, z, c, v, "values" ); + endif + switch (nargout) + case 0 + if (!isempty (pa)) + set (pa, "FaceVertexCData", new_col); + endif + case 1 + varargout = {new_col}; + otherwise + print_usage (); + endswitch +endfunction + + +%!test +%! [x, y, z] = meshgrid (0:.5:2, 0:.5:2, 0:.5:2); +%! c = (x-.5).^2 + (y-.5).^2 + (z-.5).^2; +%! [f, v] = isosurface (x, y, z, c, .4); +%! cdat = isocolors (x, y, z, c, v); +%! assert (rows (cdat) == rows (v)); +## Can't create a patch handle for tests without a figure +