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annotate scripts/plot/draw/private/__quiver__.m @ 32038:29671873411a

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__quiver__.m: Honor scaling factor input for single quiver arrow (bug #39552) * scripts/plot/draw/private/__quiver__.m: Change scaling factor check to include cases where there is only one quiver arrow. * etc/NEWS.9.md: Note quiver change under General Improvements.
author Nicholas R. Jankowski <jankowski.nicholas@gmail.com>
date Wed, 19 Apr 2023 10:36:29 -0400
parents 597f3ee61a48
children ada96a467a28
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rev   line source
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2007-2023 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {@var{hg} =} __quiver__ (@dots{})
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28 ## Undocumented internal function.
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29 ## @end deftypefn
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30
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31 function hg = __quiver__ (varargin)
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32
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33 hax = varargin{1};
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34 is3d = varargin{2};
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35
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36 autoscale = 0.9;
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37 ## Matlab uses 0.2, but Octave's algorithm produces equivalent visual
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38 ## results if arrowsize=0.33. Since this is just a non-dimensional
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39 ## scaling factor we scale the arrowsize property value by 0.33/0.20
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40 ## in order to get equivalent visual results while keeping equivalent
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41 ## property values.
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42 arrowsize = 0.20;
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43
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44 firstnonnumeric = find (! cellfun ("isnumeric", varargin(3:nargin)), 1);
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45 if (isempty (firstnonnumeric))
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46 firstnonnumeric = Inf;
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47 else
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48 firstnonnumeric += 2;
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49 endif
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50
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51 ioff = 3;
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52 if (nargin < (6 + is3d) || firstnonnumeric < (6 + is3d))
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53 if (is3d)
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54 z = varargin{ioff++};
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55 endif
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56 u = varargin{ioff++};
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57 v = varargin{ioff++};
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58 if (is3d)
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59 w = varargin{ioff++};
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60 endif
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61 if (is3d)
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62 if (! size_equal (z, u, v, w))
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63 error ("quiver3: Z, U, V, and W must be the same size");
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64 endif
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65 else
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66 if (! size_equal (u, v))
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67 error ("quiver: U and V must be the same size");
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68 endif
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69 endif
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70 [x, y] = meshgrid (1:columns (u), 1:rows (u));
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71
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72 if (nargin >= ioff && isnumeric (varargin{ioff})
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73 && isscalar (varargin{ioff}))
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74 autoscale = varargin{ioff++};
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75 endif
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76 else
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77 x = varargin{ioff++};
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78 y = varargin{ioff++};
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79 if (is3d)
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80 z = varargin{ioff++};
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81 endif
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82 u = varargin{ioff++};
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83 v = varargin{ioff++};
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84 if (is3d)
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85 w = varargin{ioff++};
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86 if (isvector (x) && isvector (y) && isvector (z)
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87 && (! isvector (u) || ! isvector (v) || ! isvector (w)))
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88 [x, y, z] = meshgrid (x, y, z);
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89 endif
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90 else
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91 if (isvector (x) && isvector (y) && (! isvector (u) || ! isvector (v)))
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92 [x, y] = meshgrid (x, y);
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93 endif
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94 endif
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95 if (is3d)
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96 if (! size_equal (x, y, z, u, v, w))
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97 error ("quiver3: X, Y, Z, U, V, and W must be the same size");
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98 endif
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99 else
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100 if (! size_equal (x, y, u, v))
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101 error ("quiver: X, Y, U, and V must be the same size");
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102 endif
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103 endif
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104
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105 if (nargin >= ioff && isnumeric (varargin{ioff})
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106 && isscalar (varargin{ioff}))
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107 autoscale = varargin{ioff++};
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108 endif
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109 endif
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110
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111 have_filled = false;
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112 have_line_spec = false;
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113 args = {};
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114 while (ioff <= nargin)
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115 arg = varargin{ioff++};
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116 if (ischar (arg) && strcmpi (arg, "filled"))
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117 have_filled = true;
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118 elseif ((ischar (arg) || iscellstr (arg))
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119 && ! have_line_spec)
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120 [linespec, valid] = __pltopt__ ("quiver", arg, false);
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121 if (valid)
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122 have_line_spec = true;
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123 if (isempty (linespec.linestyle) || strcmp (linespec.linestyle, "none"))
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124 linespec.linestyle = "-";
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125 endif
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126 else
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127 args{end+1} = arg;
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128 if (ioff <= nargin)
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129 args{end+1} = varargin{ioff++};
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130 endif
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131 endif
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132 else
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133 args{end+1} = arg;
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134 if (ioff <= nargin)
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135 args{end+1} = varargin{ioff++};
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136 endif
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137 endif
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138 endwhile
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139
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Rik <rik@octave.org>
parents: 17572
diff changeset
140 ## Normalize 0.20 to 1/3 for plotting
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
141 arrowsize /= 0.20 * 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
142
19371
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
143 ## Scale the arrows to fit in the grid
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
144 uu = u;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
145 vv = v;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
146 if (is3d)
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
147 ww = w;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
148 len = max (sqrt (u(:).^2 + v(:).^2 + w(:).^2));
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
149 else
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19371
diff changeset
150 len = max (sqrt (u(:).^2 + v(:).^2));
19371
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
151 endif
32038
29671873411a __quiver__.m: Honor scaling factor input for single quiver arrow (bug #39552)
Nicholas R. Jankowski <jankowski.nicholas@gmail.com>
parents: 31706
diff changeset
152 if (len > 0 && autoscale && numel (u) >= 1)
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
153 if (isvector (x))
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
154 nx = ny = sqrt (length (x));
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
155 else
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
156 [ny, nx] = size (x); # assume meshgrid fmt, x in columns, y in rows
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
157 endif
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
158 dx = (max (x(:)) - min (x(:))) / nx;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
159 dy = (max (y(:)) - min (y(:))) / ny;
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
160 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
161 dz = (max (z(:)) - min (z(:))) / max (nx, ny);
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
162 else
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
163 dz = 0;
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
164 endif
19371
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
165 sd = sqrt (dx.^2 + dy.^2 + dz.^2) / len;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
166 if (sd != 0)
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
167 s = autoscale * sd;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
168 else # special case of identical points with multiple vectors
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
169 s = autoscale;
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
170 endif
19371
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
171 uu = s * u;
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
172 vv = s * v;
8315
e9687c313d5f Fix callbacks in stem and quiver for change in order of children. Fix for scaling in quiver for single arrow
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
173 if (is3d)
19371
009191dbc76d quiver: fix initialization error when called with zeros (bug #43686)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 17744
diff changeset
174 ww = s * w;
8315
e9687c313d5f Fix callbacks in stem and quiver for change in order of children. Fix for scaling in quiver for single arrow
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
175 endif
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
176 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
177
22366
837df5db5710 Make graphic functions visually compatible w/Matlab.
Rik <rik@octave.org>
parents: 22323
diff changeset
178 hstate = get (hax, "nextplot");
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
179 unwind_protect
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
180 if (have_line_spec)
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
181 ls = linespec.linestyle;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
182 lc = linespec.color;
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
183 if (isempty (lc))
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
184 lc = __next_line_color__ ();
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
185 endif
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
186 else
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
187 ls = "-";
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
188 lc = __next_line_color__ ();
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
189 endif
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
190
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
191 ## Must occur after __next_line_color__ in order to work correctly.
27790
0157c4d4792e legend.m: Handle builtin hggroup-based objects (bug #57260)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27106
diff changeset
192 hg = hggroup ("__appdata__", struct ("__creator__", "__quiver__"));
8070
3b53b25e2550 Add data sources and line series
David Bateman <dbateman@free.fr>
parents: 8056
diff changeset
193 if (is3d)
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
194 args = __add_datasource__ ("quiver3", hg,
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
195 {"x", "y", "z", "u", "v", "w"}, args{:});
8070
3b53b25e2550 Add data sources and line series
David Bateman <dbateman@free.fr>
parents: 8056
diff changeset
196 else
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
197 args = __add_datasource__ ("quiver", hg,
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
198 {"x", "y", "z", "u", "v", "w"}, args{:});
8070
3b53b25e2550 Add data sources and line series
David Bateman <dbateman@free.fr>
parents: 8056
diff changeset
199 endif
22366
837df5db5710 Make graphic functions visually compatible w/Matlab.
Rik <rik@octave.org>
parents: 22323
diff changeset
200
837df5db5710 Make graphic functions visually compatible w/Matlab.
Rik <rik@octave.org>
parents: 22323
diff changeset
201 hold (hax, "on");
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
202
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
203 addproperty ("xdata", hg, "data", x);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
204 addproperty ("ydata", hg, "data", y);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
205
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
206 addproperty ("udata", hg, "data", u);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
207 addproperty ("vdata", hg, "data", v);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
208 if (is3d)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
209 addproperty ("zdata", hg, "data", z);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
210 addproperty ("wdata", hg, "data", w);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
211 else
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
212 addproperty ("zdata", hg, "data", []);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
213 addproperty ("wdata", hg, "data", []);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
214 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
215
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
216 addlistener (hg, "xdata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
217 addlistener (hg, "ydata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
218 addlistener (hg, "zdata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
219 addlistener (hg, "udata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
220 addlistener (hg, "vdata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
221 addlistener (hg, "wdata", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
222
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
223 x = x(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
224 y = y(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
225 xend = x + uu(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
226 yend = y + vv(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
227 if (is3d)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
228 z = z(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
229 zend = z + ww(:);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
230 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
231
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
232 ## Draw arrow shaft as one line object
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
233 if (is3d)
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
234 h1 = plot3 ([x.'; xend.'; NaN(1, length (x))](:),
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
235 [y.'; yend.'; NaN(1, length (y))](:),
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
236 [z.'; zend.'; NaN(1, length (z))](:),
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
237 "linestyle", ls, "color", lc, "parent", hg);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
238 else
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
239 h1 = plot ([x.'; xend.'; NaN(1, length (x))](:),
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
240 [y.'; yend.'; NaN(1, length (y))](:),
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
241 "linestyle", ls, "color", lc, "parent", hg);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
242 endif
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
243
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
244 xtmp = x + uu(:) * (1 - arrowsize);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
245 ytmp = y + vv(:) * (1 - arrowsize);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
246
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
247 if (is3d)
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
248 xydist = sqrt (uu(:).^2 + vv(:).^2 + ww(:).^2) ./ ...
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
249 (sqrt (uu(:).^2 + vv(:).^2) + eps);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
250 xarrw1 = xtmp + vv(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
251 xarrw2 = xtmp - vv(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
252 yarrw1 = ytmp - uu(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
253 yarrw2 = ytmp + uu(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
254 zarrw1 = zarrw2 = zend - ww(:) * arrowsize;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
255 else
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
256 xarrw1 = xtmp + vv(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
257 xarrw2 = xtmp - vv(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
258 yarrw1 = ytmp - uu(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
259 yarrw2 = ytmp + uu(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
260 endif
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
261
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
262 ## Draw arrowhead as one line object
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
263
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
264 ## Arrowhead is constructed, but NOT displayed, when marker is present.
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
265 if (have_line_spec)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
266 if (! isempty (linespec.marker) && ! strcmp (linespec.marker, "none"))
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
267 ls = "none";
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
268 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
269 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
270
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
271 if (is3d)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
272 h2 = plot3 ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:),
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
273 [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:),
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
274 [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:),
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
275 "linestyle", ls, "color", lc, "parent", hg);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
276 else
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
277 h2 = plot ([xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:),
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
278 [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:),
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
279 "linestyle", ls, "color", lc, "parent", hg);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
280 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
281
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
282 ## Draw arrow base marker as a third line object
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
283 if (! have_line_spec || isempty (linespec.marker))
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
284 mk = "none";
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
285 else
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
286 mk = linespec.marker;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
287 endif
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
288 if (is3d)
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
289 h3 = plot3 (x, y, z, "linestyle", "none", "color", lc, "marker", mk,
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
290 "parent", hg);
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
291 else
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
292 h3 = plot (x, y, "linestyle", "none", "color", lc, "marker", mk,
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
293 "parent", hg);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
294 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
295 if (have_filled)
24382
b71ba49473f4 Fix incorrect color of markers in quiver plots when linestyle given.
Rik <rik@octave.org>
parents: 23219
diff changeset
296 set (h3, "markerfacecolor", lc);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
297 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
298
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
299 ## Set up the hggroup properties and listeners
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
300 if (autoscale)
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
301 addproperty ("autoscale", hg, "radio", "{on}|off", "on");
11589
b0084095098e missing semicolons in script files
John W. Eaton <jwe@octave.org>
parents: 11587
diff changeset
302 addproperty ("autoscalefactor", hg, "data", autoscale);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
303 else
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
304 addproperty ("autoscale", hg, "radio", "{on}|off", "off");
11589
b0084095098e missing semicolons in script files
John W. Eaton <jwe@octave.org>
parents: 11587
diff changeset
305 addproperty ("autoscalefactor", hg, "data", 1.0);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
306 endif
11589
b0084095098e missing semicolons in script files
John W. Eaton <jwe@octave.org>
parents: 11587
diff changeset
307 addlistener (hg, "autoscale", @update_data);
b0084095098e missing semicolons in script files
John W. Eaton <jwe@octave.org>
parents: 11587
diff changeset
308 addlistener (hg, "autoscalefactor", @update_data);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
309
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
310 addproperty ("maxheadsize", hg, "data", arrowsize * .20*3);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
311 addlistener (hg, "maxheadsize", @update_data);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
312
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
313 addproperty ("showarrowhead", hg, "radio", "{on}|off", "on");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
314 addlistener (hg, "showarrowhead", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
315
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
316 addproperty ("color", hg, "linecolor", get (h1, "color"));
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
317 addproperty ("linestyle", hg, "linelinestyle", get (h1, "linestyle"));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
318 addproperty ("linewidth", hg, "linelinewidth", get (h1, "linewidth"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
319 addproperty ("marker", hg, "linemarker", get (h3, "marker"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
320 addproperty ("markerfacecolor", hg, "linemarkerfacecolor",
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
diff changeset
321 get (h3, "markerfacecolor"));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
322 addproperty ("markersize", hg, "linemarkersize", get (h3, "markersize"));
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
323
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
324 addlistener (hg, "color", @update_props);
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
325 addlistener (hg, "linestyle", @update_props);
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
326 addlistener (hg, "linewidth", @update_props);
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
327 addlistener (hg, "marker", @update_props);
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
328 addlistener (hg, "markerfacecolor", @update_props);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
329 addlistener (hg, "markersize", @update_props);
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
330
17527
76614e624818 Add "HitTestArea" property to certain hggroups for Matlab compatibility
Rik <rik@octave.org>
parents: 17462
diff changeset
331 ## Matlab property, although Octave does not implement it.
76614e624818 Add "HitTestArea" property to certain hggroups for Matlab compatibility
Rik <rik@octave.org>
parents: 17462
diff changeset
332 addproperty ("hittestarea", hg, "radio", "on|{off}", "off");
76614e624818 Add "HitTestArea" property to certain hggroups for Matlab compatibility
Rik <rik@octave.org>
parents: 17462
diff changeset
333
8079
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
334 if (! isempty (args))
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
335 set (hg, args{:});
082fa7859574 Additional do not call set with empty arguments fixes
David Bateman <dbateman@free.fr>
parents: 8075
diff changeset
336 endif
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
337 unwind_protect_cleanup
22366
837df5db5710 Make graphic functions visually compatible w/Matlab.
Rik <rik@octave.org>
parents: 22323
diff changeset
338 set (hax, "nextplot", hstate);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
339 end_unwind_protect
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
340
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
341 endfunction
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
342
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
343 function update_data (h, ~)
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
344
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
345 x = get (h, "xdata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
346 y = get (h, "ydata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
347 z = get (h, "zdata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
348
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
349 u = get (h, "udata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
350 v = get (h, "vdata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
351 w = get (h, "wdata");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
352
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
353 s = get (h, "autoscalefactor");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
354 arrowsize = get (h, "maxheadsize");
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
355 arrowsize /= 0.20 * 3;
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
356
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
357 kids = get (h, "children");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
358
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
359 if (isempty (z) || isempty (w))
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
360 is3d = false;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
361 else
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
362 is3d = true;
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
363 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
364
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
365 if (strcmp (get (h, "autoscale"), "on") && s != 0)
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
366 ## Scale the arrows to fit in the grid
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
367 if (isvector (x))
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
368 nx = ny = sqrt (length (x));
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
369 else
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
370 [ny, nx] = size (x);
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
371 endif
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
372 dx = (max (x(:)) - min (x(:))) / nx;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
373 dy = (max (y(:)) - min (y(:))) / ny;
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
374 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
375 dz = (max (z(:)) - min (z(:))) / max (nx, ny);
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
376 len = max (sqrt (u(:).^2 + v(:).^2 + w(:).^2));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
377 else
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
378 dz = 0;
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
379 len = max (sqrt (u(:).^2 + v(:).^2));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
380 endif
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
381 if (len > 0)
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
382 sd = sqrt (dx.^2 + dy.^2 + dz.^2) / len;
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
383 if (sd != 0)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
384 s *= sd;
12554
4040a95a586d Revamp quiver autoscaling algorithm (bug #32836).
Rik <octave@nomad.inbox5.com>
parents: 11589
diff changeset
385 endif
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
386 u = s * u;
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
387 v = s * v;
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
388 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
389 w = s * w;
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
390 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
391 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
392 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
393
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
394 x = x(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
395 y = y(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
396 xend = x + u(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
397 yend = y + v(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
398 if (is3d)
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
399 z = z(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
400 zend = z + w(:);
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
401 endif
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
402
27106
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
403 set (kids(3), "xdata", [x.'; xend.'; NaN(1, length (x))](:),
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
404 "ydata", [y.'; yend.'; NaN(1, length (y))](:));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
405 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
406 set (kids(3), "zdata", [z.'; zend.'; NaN(1, length (z))](:));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
407 endif
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
408
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
409 xtmp = x + u(:) * (1 - arrowsize);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
410 ytmp = y + v(:) * (1 - arrowsize);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
411
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
412 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
413 xydist = sqrt (u(:).^2 + v(:).^2 + w(:).^2) ./ ...
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
414 (sqrt (u(:).^2 + v(:).^2) + eps);
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
415 xarrw1 = xtmp + v(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
416 xarrw2 = xtmp - v(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
417 yarrw1 = ytmp - u(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
418 yarrw2 = ytmp + u(:) .* xydist * arrowsize / 4;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
419 zarrw1 = zarrw2 = zend - w(:) * arrowsize;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
420 else
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
421 xarrw1 = xtmp + v(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
422 xarrw2 = xtmp - v(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
423 yarrw1 = ytmp - u(:) * arrowsize / 3;
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
424 yarrw2 = ytmp + u(:) * arrowsize / 3;
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
425 endif
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
426
27106
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
427 set (kids(2), "xdata", [x.'; xend.'; NaN(1, length (x))](:),
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
428 "ydata", [y.'; yend.'; NaN(1, length (y))](:));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
429 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
430 set (kids(2), "zdata", [z.'; zend.'; NaN(1, length (z))](:));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
431 endif
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
432
27106
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
433 set (kids(2), "xdata", [xarrw1.'; xend.'; xarrw2.'; NaN(1, length (x))](:),
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
434 "ydata", [yarrw1.'; yend.'; yarrw2.'; NaN(1, length (y))](:));
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
435 if (is3d)
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
436 set (kids(2), "zdata", [zarrw1.'; zend.'; zarrw2.'; NaN(1, length (z))](:));
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
437 endif
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
438
27106
6bfd3a890185 Consolidate separate calls to set() in to one call for interpreter efficiency.
Rik <rik@octave.org>
parents: 27043
diff changeset
439 set (kids(1), "xdata", x, "ydata", y);
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
440 if (is3d)
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
441 set (kids(1), "zdata", z);
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
442 endif
7189
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
443
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman]
dbateman
parents:
diff changeset
444 endfunction
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
445
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
446 function update_props (h, ~)
21758
ffad2baa90f7 maint: Use newlines to make code more readable.
Rik <rik@octave.org>
parents: 20852
diff changeset
447
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
448 kids = get (h, "children");
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
449
17671
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
450 set (kids([3 2]), {"color", "linestyle", "linewidth"},
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
451 get (h, {"color", "linestyle", "linewidth"}));
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
452 set (kids(2), "visible", get (h, "showarrowhead"));
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
453 set (kids(1), {"color", "marker", "markerfacecolor", "markersize"},
ddfc1600a311 Overhaul quiver/quiver3 functions.
Rik <rik@octave.org>
parents: 17572
diff changeset
454 get (h, {"color", "marker", "markerfacecolor", "markersize"}));
21758
ffad2baa90f7 maint: Use newlines to make code more readable.
Rik <rik@octave.org>
parents: 20852
diff changeset
455
8056
9a6f4713f765 Add area, bar, quiver and stair series graphics objects. Document them
David Bateman <dbateman@free.fr>
parents: 7768
diff changeset
456 endfunction