Mercurial > octave-nkf
diff scripts/plot/draw/rectangle.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/rectangle.m@68bcac3c043a |
children | b43da3876b64 |
line wrap: on
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/plot/draw/rectangle.m Fri Oct 04 17:09:08 2013 -0700 @@ -0,0 +1,242 @@ +## Copyright (C) 2012 David Bateman +## +## 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} {} rectangle () +## @deftypefnx {Function File} {} rectangle (@dots{}, "Position", @var{pos}) +## @deftypefnx {Function File} {} rectangle (@dots{}, "Curvature", @var{curv}) +## @deftypefnx {Function File} {} rectangle (@dots{}, "EdgeColor", @var{ec}) +## @deftypefnx {Function File} {} rectangle (@dots{}, "FaceColor", @var{fc}) +## @deftypefnx {Function File} {} rectangle (@var{hax}, @dots{}) +## @deftypefnx {Function File} {@var{h} =} rectangle (@dots{}) +## +## Draw a rectangular patch defined by @var{pos} and @var{curv}. +## +## The variable @code{@var{pos}(1:2)} defines the lower left-hand corner of +## the patch and @code{@var{pos}(3:4)} defines its width and height. By +## default, the value of @var{pos} is @code{[0, 0, 1, 1]}. +## +## The variable @var{curv} defines the curvature of the sides of the rectangle +## and may be a scalar or two-element vector with values between 0 and 1. +## A value of 0 represents no curvature of the side, whereas a value of 1 +## means that the side is entirely curved into the arc of a circle. +## If @var{curv} is a two-element vector, then the first element is the +## curvature along the x-axis of the patch and the second along y-axis. +## +## If @var{curv} is a scalar, it represents the curvature of the shorter of the +## two sides of the rectangle and the curvature of the other side is defined +## by +## +## @example +## min (pos (1:2)) / max (pos (1:2)) * curv +## @end example +## +## Additional property/value pairs are passed to the underlying patch command. +## +## 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 +## rectangle object. +## @end deftypefn +## @seealso{patch, line, cylinder, ellipsoid, sphere} + +function h = rectangle (varargin) + + [hax, varargin] = __plt_get_axis_arg__ ("rectangle", varargin{:}); + + oldfig = []; + if (! isempty (hax)) + oldfig = get (0, "currentfigure"); + endif + unwind_protect + hax = newplot (hax); + + htmp = __rectangle__ (hax, varargin{:}); + unwind_protect_cleanup + if (! isempty (oldfig)) + set (0, "currentfigure", oldfig); + endif + end_unwind_protect + + if (nargout > 0) + h = htmp; + endif +endfunction + +function hg = __rectangle__ (hax, varargin) + + iarg = 1; + pos = [0, 0, 1, 1]; + curv2 = [0, 0]; + ec = [0, 0, 0]; + fc = "none"; + + while (iarg < length (varargin)) + arg = varargin{iarg}; + if (ischar (arg)) + if (strcmpi (arg, "position")) + pos = varargin{iarg+1}; + varargin(iarg:iarg+1) = []; + if (!isvector (pos) || numel (pos) != 4) + error ("rectangle: position must be a 4 element vector"); + endif + elseif (strcmpi (arg, "curvature")) + curv2 = varargin{iarg+1}; + varargin(iarg:iarg+1) = []; + if (!isnumeric (curv2) || (numel (curv2) != 1 && numel (curv2) != 2)) + error ("rectangle: curvature must be a 2 element vector or a scalar"); + endif + if (any (curv2 < 0) || any (curv2 > 1)) + error ("rectangle: curvature values must be between 0 and 1"); + endif + elseif (strcmpi (arg, "edgecolor")) + ec = varargin{iarg+1}; + varargin(iarg:iarg+1) = []; + elseif (strcmpi (arg, "facecolor")) + fc = varargin{iarg+1}; + varargin(iarg:iarg+1) = []; + else + iarg ++; + endif + else + iarg ++; + endif + endwhile + + if (numel (curv2) == 1) + [a, ai] = min (pos (3 : 4)); + [b, bi] = max (pos (3 : 4)); + if (ai < bi) + curv = [curv2, curv2 .* a ./ b]; + else + curv = [curv2 .* a ./ b, curv2]; + endif + else + curv = curv2; + endif + + if (all (curv) < 0.01) + ## Special case : no curvature + x = [pos(1), pos(1) + pos(3), pos(1) + pos(3), pos(1), pos(1)]; + y = [pos(2), pos(2), pos(2) + pos(4), pos(2) + pos(4), pos(2)]; + else + p = pi / 2 * [0 : 15] / 15; + c = curv .* pos(3 : 4) / 2; + cx = c(1) * sin (p) - c(1); + cy = c(2) * cos (p) - c(2); + x = [pos(1) - fliplr(cx), pos(1) + pos(3) + cx, ... + pos(1) + pos(3) + fliplr(cx), pos(1) - cx, pos(1)]; + y = [pos(2) - fliplr(cy), pos(2) - cy, pos(2) + pos(4) + fliplr(cy), ... + pos(2) + pos(4) + cy, pos(2) + c(2)]; + endif + + hg = hggroup (); + + h = patch ("xdata", x(:), "ydata", y(:), "facecolor", fc, "edgecolor", ec, ... + "parent", hg, varargin{:}); + + addproperty ("curvature", hg, "data", curv2); + addproperty ("position", hg, "data", pos); + addproperty ("edgecolor", hg, "patchedgecolor", get (h, "edgecolor")); + addproperty ("linewidth", hg, "patchlinewidth", get (h, "linewidth")); + addproperty ("linestyle", hg, "patchlinestyle", get (h, "linestyle")); + addproperty ("facecolor", hg, "patchfacecolor", get (h, "facecolor")); + + addlistener (hg, "curvature", @update_data); + addlistener (hg, "position", @update_data); + addlistener (hg, "edgecolor", @update_props); + addlistener (hg, "linewidth", @update_props); + addlistener (hg, "linestyle", @update_props); + addlistener (hg, "facecolor", @update_props); +endfunction + +function update_data (h, d) + persistent recursion = false; + + ## Don't allow recursion + if (!recursion) + unwind_protect + recursion = true; + + kids = get (h, "children"); + pos = get (h, "position"); + curv2 = get (h, "curvature"); + + if (numel (curv2) == 1) + [a, ai] = min (pos (3 : 4)); + [b, bi] = max (pos (3 : 4)); + if (ai < bi) + curv = [curv2, curv2 .* a ./ b]; + else + curv = [curv2 .* a ./ b, curv2]; + endif + else + curv = curv2; + endif + + if (all (curv) < 0.01) + ## Special case : no curvature + x = [pos(1), pos(1) + pos(3), pos(1) + pos(3), pos(1), pos(1)]; + y = [pos(2), pos(2), pos(2) + pos(4), pos(2) + pos(4), pos(2)]; + else + p = pi / 2 * [0 : 15] / 15; + c = curv .* pos(3 : 4) / 2; + cx = c(1) * sin (p) - c(1); + cy = c(2) * cos (p) - c(2); + x = [pos(1) - fliplr(cx), pos(1) + pos(3) + cx, ... + pos(1) + pos(3) + fliplr(cx), pos(1) - cx, pos(1)]; + y = [pos(2) - fliplr(cy), pos(2) - cy, pos(2) + pos(4) + fliplr(cy), ... + pos(2) + pos(4) + cy, pos(2) + c(2)]; + endif + + set (kids, "xdata", x, "ydata", y); + unwind_protect_cleanup + recursion = false; + end_unwind_protect + endif +endfunction + +function update_props (h, d) + kids = get (h, "children"); + set (kids, "edgecolor", get (h, "edgecolor"), + "linewidth", get (h, "linewidth"), + "linestyle", get (h, "linestyle"), + "facecolor", get (h, "facecolor")); +endfunction + + +%!demo +%! clf; +%! axis equal; +%! rectangle ('Position', [0.05, 0.05, 0.9, 0.9], 'Curvature', [0.5, 0.5]); +%! title ('rectangle() with corners curved'); + +%!demo +%! clf; +%! axis equal; +%! rectangle ('Position', [0.05, 0.05, 0.9, 0.4], 'Curvature', 1.0); +%! title ('rectangle() with sides as complete arcs'); + +%!demo +%! clf; +%! axis equal; +%! h = rectangle ('Position', [0.05, 0.05, 0.9, 0.4], 'Curvature', 1.0); +%! set (h, 'FaceColor', [0, 1, 0]); +%! title ('rectangle() with FaceColor = green'); +