Mercurial > octave-nkf
view scripts/plot/draw/private/__quiver__.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/private/__quiver__.m@76614e624818 |
children | ddfc1600a311 |
line wrap: on
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## Copyright (C) 2007-2012 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} {@var{hg} =} __quiver__ (@dots{}) ## Undocumented internal function. ## @end deftypefn function hg = __quiver__ (varargin) h = varargin{1}; is3d = varargin{2}; autoscale = 0.9; arrowsize = 0.2; firstnonnumeric = Inf; for i = 3:nargin if (! isnumeric (varargin{i})) firstnonnumeric = i; break; endif endfor ioff = 3; if (nargin < (6 + is3d) || firstnonnumeric < (6 + is3d)) u = varargin{ioff++}; v = varargin{ioff++}; if (is3d) w = varargin{ioff++}; [x, y, z] = meshgrid (1:columns (u), 1:rows (u), 1:max (size (w))); else [x, y] = meshgrid (1:columns (u), 1:rows (u)); endif if (nargin >= ioff && isnumeric (varargin{ioff}) && isscalar (varargin{ioff})) autoscale = varargin{ioff++}; endif else x = varargin{ioff++}; y = varargin{ioff++}; if (is3d) z = varargin{ioff++}; endif u = varargin{ioff++}; v = varargin{ioff++}; if (is3d) w = varargin{ioff++}; if (isvector (x) && isvector (y) && isvector (z) && (! isvector (u) || ! isvector (v) || ! isvector (w))) [x, y, z] = meshgrid (x, y, z); endif else if (isvector (x) && isvector (y) && (! isvector (u) || ! isvector (v))) [x, y] = meshgrid (x, y); endif endif if (nargin >= ioff && isnumeric (varargin{ioff}) && isscalar (varargin{ioff})) autoscale = varargin{ioff++}; endif endif have_filled = false; have_line_spec = false; args = {}; while (ioff <= nargin) arg = varargin{ioff++}; if (ischar (arg) && strcmpi (arg, "filled")) have_filled = true; elseif ((ischar (arg) || iscellstr (arg)) && ! have_line_spec) [linespec, valid] = __pltopt__ ("quiver", arg, false); if (valid) have_line_spec = true; if (strcmp (linespec.linestyle, "none")) linespec.linestyle = "-"; endif else args {end + 1} = arg; if (ioff <= nargin) args {end + 1} = varargin{ioff++}; endif endif else args {end + 1} = arg; if (ioff <= nargin) args {end + 1} = varargin{ioff++}; endif endif endwhile if (autoscale && numel (u) > 1) ## Scale the arrows to fit in the grid if (isvector (x)) ny = nx = length (x); else [nx, ny] = size (x); endif dx = (max (x(:)) - min (x(:))) ./ nx; dy = (max (y(:)) - min (y(:))) ./ ny; if (is3d) dz = (max (z(:)) - min (z(:))) ./ max (size (z)); len = max (sqrt (u(:).^2 + v(:).^2 + w(:).^2)); else dz = 0; len = max (sqrt (u(:).^2 + v(:).^2)); endif if (len > 0) sd = sqrt (dx.^2 + dy.^2 + dz.^2) / len; if (sd != 0) s = sqrt (2) * autoscale * sd; else # special case of identical points with multiple vectors s = autoscale; endif uu = s * u; vv = s * v; if (is3d) ww = s*w; endif endif else uu = u; vv = v; if (is3d) ww = w; endif endif hstate = get (h, "nextplot"); unwind_protect hg = hggroup (); if (is3d) args = __add_datasource__ ("quiver3", hg, {"x", "y", "z", "u", "v", "w"}, args{:}); else args = __add_datasource__ ("quiver", hg, {"x", "y", "z", "u", "v", "w"}, args{:}); endif hold on; addproperty ("xdata", hg, "data", x); addproperty ("ydata", hg, "data", y); addproperty ("udata", hg, "data", u); addproperty ("vdata", hg, "data", v); if (is3d) addproperty ("zdata", hg, "data", z); addproperty ("wdata", hg, "data", w); else addproperty ("zdata", hg, "data", []); addproperty ("wdata", hg, "data", []); endif addlistener (hg, "xdata", @update_data); addlistener (hg, "ydata", @update_data); addlistener (hg, "zdata", @update_data); addlistener (hg, "udata", @update_data); addlistener (hg, "vdata", @update_data); addlistener (hg, "wdata", @update_data); x = x(:); y = y(:); xend = x + uu(:); yend = y + vv(:); if (is3d) z = z(:); zend = z + ww(:); endif if (have_line_spec) if (is3d) h1 = plot3 ([x.'; xend.'; NaN(1, length (x))](:), [y.'; yend.'; NaN(1, length (y))](:), [z.'; zend.'; NaN(1, length (z))](:), "linestyle", linespec.linestyle, "color", linespec.color, "parent", hg); else h1 = plot ([x.'; xend.'; NaN(1, length (x))](:), [y.'; yend.'; NaN(1, length (y))](:), "linestyle", linespec.linestyle, "color", linespec.color, "parent", hg); endif else if (is3d) h1 = plot3 ([x.'; xend.'; NaN(1, length (x))](:), [y.'; yend.'; NaN(1, length (y))](:), [z.'; zend.'; NaN(1, length (z))](:), "color", "black", "parent", hg); else h1 = plot ([x.'; xend.'; NaN(1, length (x))](:), [y.'; yend.'; NaN(1, length (y))](:), "parent", hg); endif endif xtmp = x + uu(:) .* (1 - arrowsize); ytmp = y + vv(:) .* (1 - arrowsize); if (is3d) xarrw1 = xtmp + sqrt((y - yend).^2 + (z - zend).^2) * arrowsize / 3; xarrw2 = xtmp - sqrt((y - yend).^2 + (z - zend).^2) * arrowsize / 3; yarrw1 = ytmp - sqrt((x - xend).^2 + (z - zend).^2) * arrowsize / 3; yarrw2 = ytmp + sqrt((x - xend).^2 + (z - zend).^2) * arrowsize / 3; zarrw1 = zarrw2 = zend - ww(:) * arrowsize; else xarrw1 = xtmp + (y - yend) * arrowsize / 3; xarrw2 = xtmp - (y - yend) * arrowsize / 3; yarrw1 = ytmp - (x - xend) * arrowsize / 3; yarrw2 = ytmp + (x - xend) * arrowsize / 3; endif if (have_line_spec) if (isfield (linespec, "marker") && ! strcmp (linespec.marker, "none")) if (is3d) h2 = plot3 ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:), "linestyle", "none", "parent", hg); else h2 = plot ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), "linestyle", "none", "parent", hg); endif else if (is3d) h2 = plot3 ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:), "linestyle", linespec.linestyle, "color", linespec.color, "parent", hg); else h2 = plot ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), "linestyle", linespec.linestyle, "color", linespec.color, "parent", hg); endif endif elseif (is3d) h2 = plot3 ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:), "color", "black", "parent", hg); else h2 = plot ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:), [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:), "parent", hg); endif if (! have_line_spec || (isfield (linespec, "marker") && strcmp (linespec.marker, "none"))) if (is3d) h3 = plot3 (x, y, z, "linestyle", "none", "marker", "none", "parent", hg); else h3 = plot (x, y, "linestyle", "none", "marker", "none", "parent", hg); endif else if (is3d) h3 = plot3 (x, y, z, "linestyle", "none", "marker", linespec.marker, "parent", hg); else h3 = plot (x, y, "linestyle", "none", "marker", linespec.marker, "parent", hg); endif endif if (have_filled) ## FIXME: gnuplot doesn't respect the markerfacecolor field set (h3, "markerfacecolor", get (h1, "color")); endif ## Set up the hggroup properties and listeners if (autoscale) addproperty ("autoscale", hg, "radio", "{on}|off", "on"); addproperty ("autoscalefactor", hg, "data", autoscale); else addproperty ("autoscale", hg, "radio", "{on}|off", "off"); addproperty ("autoscalefactor", hg, "data", 1.0); endif addlistener (hg, "autoscale", @update_data); addlistener (hg, "autoscalefactor", @update_data); addproperty ("maxheadsize", hg, "data", arrowsize); addlistener (hg, "maxheadsize", @update_data); addproperty ("showarrowhead", hg, "radio", "{on}|off", "on"); addlistener (hg, "showarrowhead", @update_props); addproperty ("color", hg, "linecolor", get (h1, "color")); addproperty ("linewidth", hg, "linelinewidth", get (h1, "linewidth")); addproperty ("linestyle", hg, "linelinestyle", get (h1, "linestyle")); addproperty ("marker", hg, "linemarker", get (h3, "marker")); addproperty ("markerfacecolor", hg, "linemarkerfacecolor", get (h3, "markerfacecolor")); addproperty ("markersize", hg, "linemarkersize", get (h3, "markersize")); addlistener (hg, "color", @update_props); addlistener (hg, "linewidth", @update_props); addlistener (hg, "linestyle", @update_props); addlistener (hg, "marker", @update_props); addlistener (hg, "markerfacecolor", @update_props); addlistener (hg, "markersize", @update_props); ## Matlab property, although Octave does not implement it. addproperty ("hittestarea", hg, "radio", "on|{off}", "off"); if (! isempty (args)) set (hg, args{:}); endif unwind_protect_cleanup set (h, "nextplot", hstate); end_unwind_protect endfunction function update_data (h, d) x = get (h, "xdata"); y = get (h, "ydata"); z = get (h, "zdata"); u = get (h, "udata"); v = get (h, "vdata"); w = get (h, "wdata"); s = get (h, "autoscalefactor"); arrowsize = get (h, "maxheadsize"); kids = get (h, "children"); if (isempty (z) || isempty (w)) is3d = false; else is3d = true; endif if (strcmpi (get (h, "autoscale"), "on") && s != 0) ## Scale the arrows to fit in the grid if (isvector (x)) ny = nx = length (x); else [nx, ny] = size (x); endif dx = (max (x(:)) - min (x(:))) ./ nx; dy = (max (y(:)) - min (y(:))) ./ ny; if (is3d) dz = (max (z(:)) - min (z(:))) ./ max (size (z)); len = max (sqrt (u(:).^2 + v(:).^2 + w(:).^2)); else dz = 0; len = max (sqrt (u(:).^2 + v(:).^2)); endif if (len > 0) sd = sqrt (dx.^2 + dy.^2 + dz.^2) / len; if (sd != 0) s *= sqrt (2) * sd; endif u = s * u; v = s * v; if (is3d) w = s*w; endif endif endif x = x(:); y = y(:); xend = x + u(:); yend = y + v(:); if (is3d) z = z(:); zend = z + w(:); endif set (kids (3), "xdata", [x.'; xend.'; NaN(1, length (x))](:)); set (kids (3), "ydata", [y.'; yend.'; NaN(1, length (y))](:)); if (is3d) set (kids (3), "zdata", [z.'; zend.'; NaN(1, length (z))](:)); endif xtmp = x + u(:) .* (1 - arrowsize); ytmp = y + v(:) .* (1 - arrowsize); xarrw1 = xtmp + (y - yend) * arrowsize / 3; xarrw2 = xtmp - (y - yend) * arrowsize / 3; yarrw1 = ytmp - (x - xend) * arrowsize / 3; yarrw2 = ytmp + (x - xend) * arrowsize / 3; if (is3d) zarrw1 = zarrw2 = zend - w(:) * arrowsize; endif set (kids (2), "xdata", [x.'; xend.'; NaN(1, length (x))](:)); set (kids (2), "ydata", [y.'; yend.'; NaN(1, length (y))](:)); if (is3d) set (kids (2), "zdata", [z.'; zend.'; NaN(1, length (z))](:)); endif set (kids (2), "xdata", [xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:)); set (kids (2), "ydata", [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:)); if (is3d) set (kids (2), "zdata", [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:)); endif set (kids (1), "xdata", x); set (kids (1), "ydata", y); if (is3d) set (kids (1), "zdata", z); endif endfunction function update_props (h, d) kids = get (h, "children"); set (kids(3), "color", get (h, "color"), "linewidth", get (h, "linewidth"), "linestyle", get (h, "linestyle")); set (kids(2), "color", get (h, "color"), "linewidth", get (h, "linewidth"), "linestyle", get (h, "linestyle")); if (strcmpi (get (h, "showarrowhead"), "on")) set (kids (2), "visible", "on"); else set (kids (2), "visible", "off"); endif set (kids(1), "color", get (h, "color"), "marker", get (h, "marker"), "markerfacecolor", get (h, "markerfacecolor"), "markersize", get (h, "markersize")); endfunction