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annotate scripts/plot/stairs.m @ 9665:1dba57e9d08d

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use blas_trans_type for xgemm
author Jaroslav Hajek <highegg@gmail.com>
date Sat, 26 Sep 2009 10:41:07 +0200
parents eb63fbe60fab
children 965487e00282
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
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John W. Eaton <jwe@octave.org>
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2 ## 2005, 2006, 2007, 2008 John W. Eaton
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} stairs (@var{x}, @var{y})
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22 ## @deftypefnx {Function File} {} stairs (@dots{}, @var{style})
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23 ## @deftypefnx {Function File} {} stairs (@dots{}, @var{prop}, @var{val})
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24 ## @deftypefnx {Function File} {} stairs (@var{h}, @dots{})
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25 ## @deftypefnx {Function File} {@var{h} =} stairs (@dots{})
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26 ## Produce a stairstep plot. The arguments may be vectors or matrices.
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27 ##
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28 ## If only one argument is given, it is taken as a vector of y-values
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29 ## and the x coordinates are taken to be the indices of the elements.
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30 ##
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31 ## If two output arguments are specified, the data are generated but
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32 ## not plotted. For example,
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33 ##
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34 ## @example
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35 ## stairs (x, y);
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36 ## @end example
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37 ##
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38 ## @noindent
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39 ## and
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40 ##
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41 ## @example
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42 ## @group
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43 ## [xs, ys] = stairs (x, y);
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44 ## plot (xs, ys);
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45 ## @end group
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46 ## @end example
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47 ##
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48 ## @noindent
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49 ## are equivalent.
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50 ## @seealso{plot, semilogx, semilogy, loglog, polar, mesh, contour,
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51 ## bar, xlabel, ylabel, title}
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52 ## @end deftypefn
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53
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54 ## Author: jwe
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55
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56 function [xs, ys] = stairs (varargin)
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57
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58 [ax, varargin, nargin] = __plt_get_axis_arg__ ("stairs", varargin{:});
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59
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60 if (nargin < 1)
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61 print_usage ();
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62 else
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63 if (nargout > 1)
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64 [h, xs, ys] = __stairs__ (false, varargin{:});
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65 else
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66 oldax = gca ();
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67 unwind_protect
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68 axes (ax);
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69 newplot ();
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70 [h, xxs, yys] = __stairs__ (true, varargin{:});
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71 unwind_protect_cleanup
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72 axes (oldax);
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73 end_unwind_protect
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74 endif
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75 if (nargout == 1)
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76 xs = h;
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77 endif
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78 endif
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79 endfunction
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80
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81 function [h, xs, ys] = __stairs__ (doplot, varargin)
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82
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83 if (nargin == 1 || ischar (varargin{2}))
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84 y = varargin {1};
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85 varargin(1) = [];
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86 if (ismatrix (y))
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87 if (isvector (y))
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88 y = y(:);
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89 endif
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90 x = 1:rows (y);
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91 endif
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92 else
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93 x = varargin{1};
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94 y = varargin{2};
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95 varargin(1:2) = [];
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96 endif
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97
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98 if (ndims (x) > 2 || ndims (y) > 2)
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99 error ("stairs: expecting 2-d arguments");
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100 endif
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101
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102 vec_x = isvector (x);
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103
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104 if (vec_x)
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105 x = x(:);
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106 endif
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107
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108 if (isvector (y))
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109 y = y(:);
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110 endif
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111
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112 if (ismatrix (y))
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113 [nr, nc] = size (y);
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114 if (vec_x)
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115 x = repmat (x, [1, nc]);
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116 else
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117 [x_nr, x_nc] = size (x);
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118 if (x_nr != nr || x_nc != nc)
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119 error ("stairs: argument size mismatch");
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120 endif
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121 endif
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122 endif
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123
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124 len = 2*nr - 1;
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125
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126 xs = ys = zeros (len, nc);
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127
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128 xs(1,:) = x(1,:);
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129 ys(1,:) = y(1,:);
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130
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131 xtmp = x(2:nr,:);
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132 ridx = 2:2:len-1;
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133 xs(ridx,:) = xtmp;
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134 ys(ridx,:) = y(1:nr-1,:);
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135
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136 ridx = 3:2:len;
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137 xs(ridx,:) = xtmp;
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138 ys(ridx,:) = y(2:nr,:);
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139
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140 have_line_spec = false;
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141 for i = 1 : length (varargin)
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142 arg = varargin {i};
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143 if ((ischar (arg) || iscell (arg)) && ! have_line_spec)
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144 [linespec, valid] = __pltopt__ ("stairs", arg, false);
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145 if (valid)
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146 have_line_spec = true;
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147 varargin(i) = [];
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148 break;
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149 endif
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150 endif
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151 endfor
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parents: 8079
diff changeset
152
7746
95dce69538ec Allow additional options to stairs plots
David Bateman <dbateman@free.fr>
parents: 7245
diff changeset
153 if (doplot)
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
154 h = [];
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
155 unwind_protect
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
156 hold_state = get (gca (), "nextplot");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
157 for i = 1 : size(y, 2)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
158 hg = hggroup ();
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
159 h = [h; hg];
8070
3b53b25e2550 Add data sources and line series
David Bateman <dbateman@free.fr>
parents: 8056
diff changeset
160 args = __add_datasource__ ("stairs", hg, {"x", "y"}, varargin{:});
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
161
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
162 addproperty ("xdata", hg, "data", x(:,i).');
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
163 addproperty ("ydata", hg, "data", y(:,i).');
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
164
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
165 addlistener (hg, "xdata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
166 addlistener (hg, "ydata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
167
8243
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
168 if (have_line_spec)
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
169 tmp = line (xs(:,i).', ys(:,i).', "color", linespec.color,
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
170 "parent", hg);
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
171 else
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
172 tmp = line (xs(:,i).', ys(:,i).', "color", __next_line_color__ (),
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
173 "parent", hg);
ec4d9d657b17 Treat line style argument in stairs
David Bateman <dbateman@free.fr>
parents: 8079
diff changeset
174 endif
8075
a028a5960e18 Fix for hold with no figures/axes. Set prop/val pairs to hggroups rather than underlying objects. Fix for equality test in array_property
David Bateman <dbateman@free.fr>
parents: 8070
diff changeset
175
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
176 addproperty ("color", hg, "linecolor", get (tmp, "color"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
177 addproperty ("linewidth", hg, "linelinewidth", get (tmp, "linewidth"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
178 addproperty ("linestyle", hg, "linelinestyle", get (tmp, "linestyle"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
179
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
180 addproperty ("marker", hg, "linemarker", get (tmp, "marker"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
181 addproperty ("markerfacecolor", hg, "linemarkerfacecolor",
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
182 get (tmp, "markerfacecolor"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
183 addproperty ("markeredgecolor", hg, "linemarkeredgecolor",
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
184 get (tmp, "markeredgecolor"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
185 addproperty ("markersize", hg, "linemarkersize",
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
186 get (tmp, "markersize"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
187
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
188 addlistener (hg, "color", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
189 addlistener (hg, "linewidth", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
190 addlistener (hg, "linestyle", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
191 addlistener (hg, "marker", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
192 addlistener (hg, "markerfacecolor", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
193 addlistener (hg, "markeredgecolor", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
194 addlistener (hg, "markersize", @update_props);
8075
a028a5960e18 Fix for hold with no figures/axes. Set prop/val pairs to hggroups rather than underlying objects. Fix for equality test in array_property
David Bateman <dbateman@free.fr>
parents: 8070
diff changeset
195
8079
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
196 if (! isempty (args))
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
197 set (hg, args{:});
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
198 endif
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
199 endfor
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
200 unwind_protect_cleanup
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
201 set (gca (), "nextplot", hold_state);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
202 end_unwind_protect
736
c8f88bd3202b [project @ 1994-09-24 03:28:05 by jwe]
jwe
parents: 245
diff changeset
203 else
7746
95dce69538ec Allow additional options to stairs plots
David Bateman <dbateman@free.fr>
parents: 7245
diff changeset
204 h = 0;
4
b4df021f796c [project @ 1993-08-08 01:26:08 by jwe]
jwe
parents:
diff changeset
205 endif
b4df021f796c [project @ 1993-08-08 01:26:08 by jwe]
jwe
parents:
diff changeset
206
b4df021f796c [project @ 1993-08-08 01:26:08 by jwe]
jwe
parents:
diff changeset
207 endfunction
7245
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
208
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
209 %!demo
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
210 %! x = 1:10;
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
211 %! y = rand (1, 10);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
212 %! stairs (x, y);
7245
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
213
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
214 %!demo
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
215 %! x = 1:10;
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
216 %! y = rand (1, 10);
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
217 %! [xs, ys] = stairs (x, y);
d65670971cbc [project @ 2007-12-04 03:03:54 by jwe]
jwe
parents: 7017
diff changeset
218 %! plot (xs, ys);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
219
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
220 function update_props (h, d)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
221 set (get (h, "children"), "color", get (h, "color"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
222 "linewidth", get (h, "linewidth"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
223 "linestyle", get (h, "linestyle"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
224 "marker", get (h, "marker"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
225 "markerfacecolor", get (h, "markerfacecolor"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
226 "markeredgecolor", get (h, "markeredgecolor"),
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
227 "markersize", get (h, "markersize"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
228 endfunction
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
229
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
230 function update_data (h, d)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
231 x = get (h, "xdata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
232 y = get (h, "ydata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
233
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
234 nr = length (x);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
235 len = 2 * nr - 1;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
236 xs = ys = zeros (1, len);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
237
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
238 xs(1) = x(1);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
239 ys(1) = y(1);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
240
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
241 xtmp = x(2:nr);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
242 ridx = 2:2:len-1;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
243 xs(ridx) = xtmp;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
244 ys(ridx) = y(1:nr-1);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
245
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
246 ridx = 3:2:len;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
247 xs(ridx) = xtmp;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
248 ys(ridx) = y(2:nr);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
249
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
250 set (get (h, "children"), "xdata", xs, "ydata", ys);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7746
diff changeset
251 endfunction