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1 ## Copyright (C) 2005 John W. Eaton |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 2, or (at your option) |
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8 ## any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, write to the Free |
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17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 ## 02110-1301, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} __go_draw_axes__ (@var{axis_obj}, @var{plot_stream}) |
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22 ## Display the axes @var{axis_obj} on @var{plot_stream}. |
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23 ## @end deftypefn |
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24 |
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25 ## Author: jwe |
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26 |
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27 function __go_draw_axes__ (h, plot_stream) |
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28 |
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29 if (nargin == 2) |
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30 |
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31 axis_obj = get (h); |
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32 |
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33 parent_figure_obj = get (axis_obj.parent); |
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34 |
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6413
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35 persistent have_newer_gnuplot ... |
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36 = compare_versions (__gnuplot_version__ (), "4.0", ">"); |
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37 |
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38 ## Set axis properties here? |
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39 |
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40 if (! isempty (axis_obj.outerposition)) |
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41 pos = axis_obj.outerposition; |
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42 fprintf (plot_stream, "set origin %g, %g;\n", pos(1), pos(2)); |
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43 fprintf (plot_stream, "set size %g, %g;\n", pos(3), pos(4)); |
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44 endif |
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45 |
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46 if (! isempty (axis_obj.position)) |
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47 pos = axis_obj.position; |
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48 fprintf (plot_stream, "set origin %g, %g;\n", pos(1), pos(2)); |
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49 fprintf (plot_stream, "set size %g, %g;\n", pos(3), pos(4)); |
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50 endif |
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51 |
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52 if (strcmp (axis_obj.dataaspectratiomode, "manual")) |
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53 r = axis_obj.dataaspectratio; |
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54 fprintf (plot_stream, "set size ratio %g;\n", -r(2)/r(1)); |
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55 else |
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56 fputs (plot_stream, "set size noratio;\n"); |
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57 endif |
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58 |
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59 if (! isempty (axis_obj.title)) |
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60 t = get (axis_obj.title); |
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61 if (isempty (t.string)) |
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62 fputs (plot_stream, "unset title;\n"); |
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63 else |
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64 fprintf (plot_stream, "set title \"%s\";\n", |
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65 undo_string_escapes (t.string)); |
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66 endif |
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67 endif |
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68 |
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69 if (! isempty (axis_obj.xlabel)) |
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70 t = get (axis_obj.xlabel); |
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71 angle = t.rotation; |
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72 if (isempty (t.string)) |
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73 fputs (plot_stream, "unset xlabel;\n"); |
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74 else |
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75 fprintf (plot_stream, "set xlabel \"%s\"", |
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76 undo_string_escapes (t.string)); |
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77 if (have_newer_gnuplot) |
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78 ## Rotation of xlabel not yet support by gnuplot as of 4.2, but |
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79 ## there is no message about it. |
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80 fprintf (plot_stream, " rotate by %f", angle); |
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81 endif |
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82 fputs (plot_stream, ";\n"); |
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83 endif |
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84 endif |
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85 |
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86 if (! isempty (axis_obj.ylabel)) |
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87 t = get (axis_obj.ylabel); |
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88 angle = t.rotation; |
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89 if (isempty (t.string)) |
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90 fputs (plot_stream, "unset ylabel;\n"); |
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91 else |
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92 fprintf (plot_stream, "set ylabel \"%s\"", |
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93 undo_string_escapes (t.string)); |
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94 if (have_newer_gnuplot) |
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95 fprintf (" rotate by %f;\n", angle); |
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96 endif |
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97 fputs (plot_stream, ";\n"); |
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98 endif |
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99 endif |
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100 |
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101 if (! isempty (axis_obj.zlabel)) |
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102 t = get (axis_obj.zlabel); |
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103 angle = t.rotation; |
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104 if (isempty (t.string)) |
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105 fputs (plot_stream, "unset zlabel;\n"); |
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106 else |
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107 fprintf (plot_stream, "set zlabel \"%s\"", |
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108 undo_string_escapes (t.string)); |
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109 if (have_newer_gnuplot) |
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110 ## Rotation of zlabel not yet support by gnuplot as of 4.2, but |
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111 ## there is no message about it. |
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112 fprintf (plot_stream, " rotate by %f;\n", angle); |
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113 endif |
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114 fputs (plot_stream, ";\n"); |
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115 endif |
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116 endif |
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117 |
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118 if (strcmp (axis_obj.xgrid, "on")) |
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119 fputs (plot_stream, "set grid xtics;\n"); |
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120 else |
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121 fputs (plot_stream, "set grid noxtics;\n"); |
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122 endif |
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123 |
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124 if (strcmp (axis_obj.ygrid, "on")) |
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125 fputs (plot_stream, "set grid ytics;\n"); |
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126 else |
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127 fputs (plot_stream, "set grid noytics;\n"); |
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128 endif |
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129 |
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130 if (strcmp (axis_obj.zgrid, "on")) |
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131 fputs (plot_stream, "set grid ztics;\n"); |
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132 else |
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133 fputs (plot_stream, "set grid ztics;\n"); |
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134 endif |
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135 |
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136 if (strcmp (axis_obj.xminorgrid, "on")) |
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137 fputs (plot_stream, "set mxtics 5;\n"); |
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138 fputs (plot_stream, "set grid mxtics;\n"); |
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139 else |
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140 fputs (plot_stream, "set grid nomxtics;\n"); |
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141 endif |
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142 |
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143 if (strcmp (axis_obj.yminorgrid, "on")) |
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144 fputs (plot_stream, "set mytics 5;\n"); |
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145 fputs (plot_stream, "set grid mytics;\n"); |
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146 else |
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147 fputs (plot_stream, "set grid nomytics;\n"); |
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148 endif |
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149 |
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150 if (strcmp (axis_obj.zminorgrid, "on")) |
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151 fputs (plot_stream, "set mztics 5;\n"); |
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152 fputs (plot_stream, "set grid mztics;\n"); |
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153 else |
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154 fputs (plot_stream, "set grid nomztics;\n"); |
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155 endif |
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156 |
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157 if (strcmp (axis_obj.xtickmode, "manual")) |
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158 xtic = axis_obj.xtick; |
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159 if (isempty (xtic)) |
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160 fputs (plot_stream, "unset xtics;\n"); |
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161 else |
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162 ## FIXME |
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163 endif |
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164 else |
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165 fputs (plot_stream, "set xtics;\n"); |
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166 endif |
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167 |
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168 if (strcmp (axis_obj.ytickmode, "manual")) |
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169 ytic = axis_obj.ytick; |
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170 if (isempty (ytic)) |
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171 fputs (plot_stream, "unset ytics;\n"); |
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172 else |
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173 ## FIXME |
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174 endif |
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175 else |
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176 fputs (plot_stream, "set ytics;\n"); |
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177 endif |
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178 |
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179 if (strcmp (axis_obj.ztickmode, "manual")) |
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180 ztic = axis_obj.ztick; |
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181 if (isempty (ztic)) |
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182 fputs (plot_stream, "unset ztics;\n"); |
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183 else |
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184 ## FIXME |
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185 endif |
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186 else |
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187 fputs (plot_stream, "set ztics;\n"); |
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188 endif |
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189 |
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190 if (strcmp (axis_obj.xticklabelmode, "manual")) |
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191 ## FIXME -- we should be able to specify the actual tick labels, |
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192 ## not just the format. |
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193 xticlabel = axis_obj.xticklabel; |
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194 fprintf (plot_stream, "set format x \"%s\";\n", xticlabel); |
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195 else |
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196 fputs (plot_stream, "set xtics;\n"); |
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197 endif |
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198 |
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199 if (strcmp (axis_obj.yticklabelmode, "manual")) |
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200 ## FIXME -- we should be able to specify the actual tick labels, |
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201 ## not just the format. |
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202 yticlabel = axis_obj.yticklabel; |
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203 fprintf (plot_stream, "set format y \"%s\";\n", yticlabel); |
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204 else |
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205 fputs (plot_stream, "set ytics;\n"); |
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206 endif |
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207 |
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208 if (strcmp (axis_obj.zticklabelmode, "manual")) |
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209 ## FIXME -- we should be able to specify the actual tick labels, |
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210 ## not just the format. |
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211 zticlabel = axis_obj.zticklabel; |
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212 fprintf (plot_stream, "set format z \"%s\";\n", zticlabel); |
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213 else |
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214 fputs (plot_stream, "set ztics;\n"); |
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215 endif |
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216 |
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217 xlogscale = strcmp (axis_obj.xscale, "log"); |
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218 if (xlogscale) |
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219 fputs (plot_stream, "set logscale x;\n"); |
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220 else |
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221 fputs (plot_stream, "unset logscale x;\n"); |
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222 endif |
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223 |
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224 ylogscale = strcmp (axis_obj.yscale, "log"); |
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225 if (ylogscale) |
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226 fputs (plot_stream, "set logscale y;\n"); |
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227 else |
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228 fputs (plot_stream, "unset logscale y;\n"); |
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229 endif |
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230 |
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231 zlogscale = strcmp (axis_obj.zscale, "log"); |
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232 if (zlogscale) |
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233 fputs (plot_stream, "set logscale z;\n"); |
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234 else |
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235 fputs (plot_stream, "unset logscale z;\n"); |
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236 endif |
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237 |
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238 xautoscale = strcmp (axis_obj.xlimmode, "auto"); |
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239 yautoscale = strcmp (axis_obj.ylimmode, "auto"); |
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240 zautoscale = strcmp (axis_obj.zlimmode, "auto"); |
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241 |
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242 kids = axis_obj.children; |
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243 |
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244 nd = 0; |
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245 data_idx = 0; |
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246 data = cell (); |
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247 is_image_data = []; |
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248 |
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249 xminp = yminp = zminp = realmax (); |
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250 xmax = ymax = zmax = -realmax (); |
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251 xmin = ymin = zmin = realmax (); |
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252 |
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253 [view_cmd, view_fcn, view_zoom] = image_viewer (); |
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254 use_gnuplot_for_images = (ischar (view_fcn) |
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255 && strcmp (view_fcn, "gnuplot_internal")); |
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256 |
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257 ximg_data = {}; |
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258 ximg_data_idx = 0; |
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259 |
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260 for i = 1:length (kids) |
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261 |
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262 obj = get (kids(i)); |
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263 |
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264 switch (obj.type) |
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265 case "image" |
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266 ## FIXME - Is there a better way to determine if the plot |
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267 ## command should be "plot" or "splot"????? Could have images |
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268 ## projected into 3D so there is really no reason to limit |
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269 ## this. |
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270 if (nd == 0) |
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271 nd = 2; |
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272 endif |
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273 |
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274 img_data = obj.cdata; |
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275 img_colormap = parent_figure_obj.colormap; |
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276 img_xdata = obj.xdata; |
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277 img_ydata = obj.ydata; |
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278 |
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279 if (use_gnuplot_for_images) |
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280 |
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281 data_idx++; |
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282 is_image_data(data_idx) = true; |
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283 |
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284 [y_dim, x_dim] = size (img_data(:,:,1)); |
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285 if (x_dim > 1) |
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286 dx = abs (img_xdata(2)-img_xdata(1))/(x_dim-1); |
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287 else |
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288 dx = 1; |
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289 endif |
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290 if (y_dim > 1) |
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291 dy = abs (img_ydata(2)-img_ydata(1))/(y_dim-1); |
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292 else |
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293 dy = 1; |
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294 endif |
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295 x_origin = min (img_xdata); |
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296 y_origin = min (img_ydata); |
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297 |
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298 if (nd == 2) |
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299 if (xautoscale) |
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300 xmin = min (xmin, min (img_xdata) - dx/2); |
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301 xmax = max (xmax, max (img_xdata) + dx/2); |
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302 xminp = min (xminp, min (img_xdata((img_xdata - dx/2)>0)) - dx/2); |
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303 endif |
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304 if (yautoscale) |
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305 ymin = min (ymin, min (img_ydata) - dy/2); |
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306 ymax = max (ymax, max (img_ydata) + dy/2); |
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307 yminp = min (yminp, min (img_ydata((img_ydata - dy/2)>0)) - dy/2); |
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308 endif |
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309 else |
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310 ## Can have images in 3D, but the image routines don't seem |
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311 ## to have a means of arbitrary projection. |
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312 endif |
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313 |
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314 if (ndims (img_data) == 3) |
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315 data{data_idx} = permute (img_data, [3, 1, 2])(:); |
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316 format = "1:2:3"; |
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317 imagetype = "rgbimage"; |
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318 else |
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319 data{data_idx} = img_data(:); |
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320 format = "1"; |
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321 imagetype = "image"; |
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322 |
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323 palette_size = rows (img_colormap); |
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324 fprintf (plot_stream, |
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325 "set palette positive color model RGB maxcolors %i;\n", |
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326 palette_size); |
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327 fprintf (plot_stream, |
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328 "set palette file \"-\" binary record=%d using 1:2:3:4;\n", |
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329 palette_size); |
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330 fwrite (plot_stream, [1:palette_size; img_colormap'], "float32"); |
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331 endif |
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332 |
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333 titlespec{data_idx} = "title \"\""; |
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334 usingclause{data_idx} = sprintf ("binary array=%dx%d scan=yx origin=(%g,%g) dx=%g dy=%g using %s", |
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335 x_dim, y_dim, x_origin, y_origin, dx, dy, format); |
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336 withclause{data_idx} = sprintf ("with %s", imagetype); |
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337 |
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338 else |
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339 ximg_data{++ximg_data_idx} = img_data; |
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340 endif |
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341 |
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342 case "line" |
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343 data_idx++; |
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344 is_image_data(data_idx) = false; |
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345 if (isempty (obj.keylabel)) |
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346 titlespec{data_idx} = "title \"\""; |
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347 else |
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348 titlespec{data_idx} = strcat ("title \"", obj.keylabel, "\""); |
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349 endif |
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350 [style, typ, with] = do_linestyle_command (obj, data_idx, plot_stream); |
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351 usingclause{data_idx} = ""; |
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352 if (have_newer_gnuplot || isnan (typ)) |
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353 withclause{data_idx} = sprintf ("with %s linestyle %d", |
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354 style, data_idx); |
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355 else |
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356 withclause{data_idx} = sprintf ("with %s linetype %d", |
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357 style, typ); |
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358 endif |
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359 parametric(i) = true; |
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360 if (! isempty (obj.zdata)) |
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361 nd = 3; |
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362 xdat = obj.xdata(:); |
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363 ydat = obj.ydata(:); |
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364 zdat = obj.zdata(:); |
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365 if (xautoscale) |
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366 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat); |
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367 endif |
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368 if (yautoscale) |
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369 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ydat); |
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370 endif |
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371 if (zautoscale) |
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372 [zmin, zmax, zminp] = get_data_limits (zmin, zmax, zminp, zdat); |
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373 endif |
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374 data{data_idx} = [xdat, ydat, zdat]'; |
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375 usingclause{data_idx} = "using ($1):($2):($3)"; |
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376 fputs (plot_stream, "set parametric;\n"); |
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377 fputs (plot_stream, "unset hidden3d;\n"); |
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378 fputs (plot_stream, "set style data lines;\n"); |
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379 fputs (plot_stream, "set surface;\n"); |
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380 fputs (plot_stream, "unset contour;\n"); |
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381 else |
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382 nd = 2; |
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383 xdat = obj.xdata(:); |
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384 ydat = obj.ydata(:); |
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385 ldat = obj.ldata; |
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386 yerr = xerr = false; |
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387 if (! isempty (ldat)) |
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388 yerr = true; |
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389 ldat = ldat(:); |
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390 endif |
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391 udat = obj.udata; |
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392 if (! isempty (udat)) |
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393 udat = udat(:); |
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394 endif |
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395 xldat = obj.xldata; |
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396 if (! isempty (xldat)) |
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397 xerr = true; |
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398 xldat = xldat(:); |
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399 endif |
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400 xudat = obj.xudata; |
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401 if (! isempty (xudat)) |
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402 xudat = xudat(:); |
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403 endif |
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404 if (yerr) |
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405 ylo = ydat-ldat; |
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406 yhi = ydat+udat; |
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407 if (yautoscale) |
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408 ty = [ydat; ylo; yhi]; |
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409 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ty); |
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6405
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410 endif |
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411 if (xerr) |
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412 xlo = xdat-xldat; |
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413 xhi = xdat+xudat; |
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414 if (xautoscale) |
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415 tx = [xdat; xlo; xhi]; |
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6453
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416 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx); |
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6405
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417 endif |
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418 data{data_idx} = [xdat, ydat, xlo, xhi, ylo, yhi]'; |
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419 usingclause{data_idx} = "using ($1):($2):($3):($4):($5):($6)"; |
|
|
420 withclause{data_idx} = sprintf ("with xyerrorbars linestyle %d", |
|
|
421 data_idx); |
|
|
422 else |
|
6736
|
423 ## Obtain the limits based on the exact x values. |
|
6405
|
424 if (xautoscale) |
|
6453
|
425 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, |
|
6736
|
426 xminp, xdat); |
|
6405
|
427 endif |
|
|
428 data{data_idx} = [xdat, ydat, ylo, yhi]'; |
|
|
429 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
430 withclause{data_idx} = sprintf ("with yerrorbars linestyle %d", |
|
|
431 data_idx); |
|
|
432 endif |
|
|
433 elseif (xerr) |
|
|
434 xlo = xdat-xldat; |
|
|
435 xhi = xdat+xudat; |
|
|
436 if (xautoscale) |
|
|
437 tx = [xdat; xlo; xhi]; |
|
6453
|
438 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx); |
|
6405
|
439 endif |
|
|
440 if (yautoscale) |
|
6453
|
441 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, |
|
|
442 yminp, ydat, ty); |
|
6405
|
443 endif |
|
|
444 data{data_idx} = [xdat, ydat, xlo, xhi]'; |
|
|
445 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
446 withclause{data_idx} = sprintf ("with xerrorbars linestyle %d", |
|
|
447 data_idx); |
|
|
448 else |
|
|
449 if (xautoscale) |
|
6453
|
450 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat); |
|
6405
|
451 endif |
|
|
452 if (yautoscale) |
|
6453
|
453 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ydat); |
|
6405
|
454 endif |
|
|
455 data{data_idx} = [xdat, ydat]'; |
|
|
456 usingclause{data_idx} = "using ($1):($2)"; |
|
|
457 endif |
|
|
458 endif |
|
6465
|
459 if (! (have_newer_gnuplot || isempty (with))) |
|
|
460 if (isempty (withclause{data_idx})) |
|
|
461 withclause{data_idx} = sprintf("with %s", with); |
|
|
462 else |
|
|
463 withclause{data_idx} = sprintf("%s %s", withclause{data_idx}, with); |
|
|
464 endif |
|
|
465 endif |
|
6405
|
466 |
|
|
467 case "surface" |
|
|
468 data_idx++; |
|
6464
|
469 is_image_data(data_idx) = false; |
|
6465
|
470 [style, typ, with] = do_linestyle_command (obj, data_idx, plot_stream); |
|
6405
|
471 if (isempty (obj.keylabel)) |
|
|
472 titlespec{data_idx} = "title \"\""; |
|
|
473 else |
|
|
474 titlespec{data_idx} = strcat ("title \"", obj.keylabel, "\""); |
|
|
475 endif |
|
|
476 usingclause{data_idx} = ""; |
|
6425
|
477 if (have_newer_gnuplot || isnan (typ)) |
|
|
478 withclause{data_idx} = sprintf ("with %s linestyle %d", |
|
|
479 style, data_idx); |
|
|
480 else |
|
6465
|
481 withclause{data_idx} = sprintf ("with %s linetype %d %s", |
|
|
482 style, typ, with); |
|
6425
|
483 endif |
|
6405
|
484 parametric(i) = false; |
|
|
485 nd = 3; |
|
|
486 xdat = obj.xdata; |
|
|
487 ydat = obj.ydata; |
|
|
488 zdat = obj.zdata; |
|
|
489 if (xautoscale) |
|
|
490 tx = xdat(:); |
|
6453
|
491 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx); |
|
6405
|
492 endif |
|
|
493 if (yautoscale) |
|
|
494 ty = ydat(:); |
|
6453
|
495 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ty); |
|
6405
|
496 endif |
|
|
497 if (zautoscale) |
|
|
498 tz = zdat(:); |
|
6453
|
499 [zmin, zmax, zminp] = get_data_limits (zmin, zmax, zminp, tz); |
|
6405
|
500 endif |
|
|
501 err = false; |
|
|
502 if (isvector (xdat) && isvector (ydat) && ismatrix (zdat)) |
|
|
503 if (rows (zdat) == length (ydat) && columns (zdat) == length (xdat)) |
|
|
504 [xdat, ydat] = meshgrid (xdat, ydat); |
|
|
505 else |
|
|
506 err = true; |
|
|
507 endif |
|
|
508 elseif (ismatrix (xdat) && ismatrix (ydat) && ismatrix (zdat)) |
|
|
509 if (! (size_equal (xdat, ydat) && size_equal (xdat, zdat))) |
|
|
510 err = true; |
|
|
511 endif |
|
|
512 else |
|
|
513 err = true; |
|
|
514 endif |
|
|
515 if (err) |
|
|
516 error ("__go_draw_axes__: invalid grid data"); |
|
|
517 endif |
|
|
518 xlen = columns (zdat); |
|
|
519 ylen = rows (zdat); |
|
|
520 if (xlen == columns (xdat) && xlen == columns (ydat) |
|
|
521 && ylen == rows (xdat) && ylen == rows (ydat)) |
|
|
522 len = 3 * xlen; |
|
|
523 zz = zeros (ylen, len); |
|
|
524 k = 1; |
|
|
525 for kk = 1:3:len |
|
|
526 zz(:,kk) = xdat(:,k); |
|
|
527 zz(:,kk+1) = ydat(:,k); |
|
|
528 zz(:,kk+2) = zdat(:,k); |
|
|
529 k++; |
|
|
530 endfor |
|
|
531 data{data_idx} = zz; |
|
|
532 endif |
|
|
533 usingclause{data_idx} = "using ($1):($2):($3)"; |
|
|
534 withclause{data_idx} = "with line palette"; |
|
|
535 |
|
|
536 fputs (plot_stream, "unset parametric;\n"); |
|
|
537 fputs (plot_stream, "set hidden3d;\n"); |
|
|
538 fputs (plot_stream, "set style data lines;\n"); |
|
|
539 fputs (plot_stream, "set surface;\n"); |
|
|
540 fputs (plot_stream, "unset contour;\n"); |
|
|
541 fputs (plot_stream, "set palette defined (0 \"dark-blue\", 1 \"blue\", 2 \"cyan\", 3 \"yellow\", 4 \"red\" , 5 \"dark-red\");\n"); |
|
|
542 fputs (plot_stream, "unset colorbox;\n"); |
|
|
543 |
|
|
544 case "text" |
|
|
545 lpos = obj.position; |
|
|
546 label = obj.string; |
|
|
547 halign = obj.horizontalalignment; |
|
6724
|
548 angle = obj.rotation; |
|
6405
|
549 if (nd == 3) |
|
6724
|
550 fprintf (plot_stream, |
|
|
551 "set label \"%s\" at %g,%g,%g %s rotate by %f;\n", |
|
6405
|
552 undo_string_escapes (label), |
|
6724
|
553 lpos(1), lpos(2), lpos(3), halign, angle); |
|
6405
|
554 else |
|
6724
|
555 fprintf (plot_stream, |
|
|
556 "set label \"%s\" at %g,%g %s rotate by %f;\n", |
|
6405
|
557 undo_string_escapes (label), |
|
6724
|
558 lpos(1), lpos(2), halign, angle); |
|
6405
|
559 endif |
|
|
560 |
|
|
561 otherwise |
|
|
562 error ("__go_draw_axes__: unknown object class, %s", |
|
|
563 obj.type); |
|
|
564 endswitch |
|
|
565 |
|
|
566 endfor |
|
|
567 |
|
|
568 have_data = ! isempty (data); |
|
|
569 |
|
|
570 if (xautoscale && have_data) |
|
|
571 xlim = get_axis_limits (xmin, xmax, xminp, xlogscale); |
|
|
572 set (h, "xlim", xlim, "xlimmode", "auto"); |
|
|
573 else |
|
|
574 xlim = axis_obj.xlim; |
|
|
575 endif |
|
|
576 if (strcmp (axis_obj.xdir, "reverse")) |
|
|
577 xdir = "reverse"; |
|
|
578 else |
|
|
579 xdir = "noreverse"; |
|
|
580 endif |
|
|
581 fprintf (plot_stream, "set xrange [%g:%g] %s;\n", xlim, xdir); |
|
|
582 |
|
|
583 if (yautoscale && have_data) |
|
|
584 ylim = get_axis_limits (ymin, ymax, yminp, ylogscale); |
|
|
585 set (h, "ylim", ylim, "ylimmode", "auto"); |
|
|
586 else |
|
|
587 ylim = axis_obj.ylim; |
|
|
588 endif |
|
|
589 if (strcmp (axis_obj.ydir, "reverse")) |
|
|
590 ydir = "reverse"; |
|
|
591 else |
|
|
592 ydir = "noreverse"; |
|
|
593 endif |
|
|
594 fprintf (plot_stream, "set yrange [%g:%g] %s;\n", ylim, ydir); |
|
|
595 |
|
|
596 if (nd == 3) |
|
|
597 if (zautoscale && have_data) |
|
|
598 zlim = get_axis_limits (zmin, zmax, zminp, zlogscale); |
|
|
599 set (h, "zlim", zlim, "zlimmode", "auto"); |
|
|
600 else |
|
|
601 zlim = axis_obj.zlim; |
|
|
602 endif |
|
|
603 if (strcmp (axis_obj.zdir, "reverse")) |
|
|
604 zdir = "reverse"; |
|
|
605 else |
|
|
606 zdir = "noreverse"; |
|
|
607 endif |
|
|
608 fprintf (plot_stream, "set zrange [%g:%g] %s;\n", zlim, zdir); |
|
|
609 endif |
|
|
610 |
|
|
611 if (strcmp (axis_obj.box, "on")) |
|
|
612 if (nd == 3) |
|
|
613 fputs (plot_stream, "set border 4095;\n"); |
|
|
614 else |
|
|
615 fputs (plot_stream, "set border 431;\n"); |
|
|
616 endif |
|
|
617 else |
|
|
618 if (nd == 3) |
|
|
619 fputs (plot_stream, "set border 895;\n"); |
|
|
620 else |
|
|
621 fputs (plot_stream, "set border 3;\n"); |
|
|
622 fputs (plot_stream, "set xtics nomirror; set ytics nomirror;\n"); |
|
|
623 endif |
|
|
624 endif |
|
|
625 |
|
|
626 if (strcmp (axis_obj.key, "on")) |
|
|
627 if (strcmp (axis_obj.keybox, "on")) |
|
|
628 box = "box"; |
|
|
629 else |
|
|
630 box = "nobox"; |
|
|
631 endif |
|
|
632 inout = "inside"; |
|
|
633 switch (axis_obj.keypos) |
|
|
634 case -1 |
|
|
635 pos = "right bottom"; |
|
|
636 inout = "outside"; |
|
|
637 case 1 |
|
|
638 pos = "right top"; |
|
|
639 case 2 |
|
|
640 pos = "left top"; |
|
|
641 case 3 |
|
|
642 pos = "left bottom"; |
|
|
643 case 4 |
|
|
644 pos = "right bottom"; |
|
|
645 otherwise |
|
|
646 pos = ""; |
|
|
647 endswitch |
|
|
648 if (! have_newer_gnuplot) |
|
|
649 inout = ""; |
|
|
650 endif |
|
|
651 fprintf (plot_stream, "set key %s %s %s;\n", inout, pos, box); |
|
|
652 else |
|
|
653 fputs (plot_stream, "unset key;\n"); |
|
|
654 endif |
|
|
655 |
|
|
656 fputs (plot_stream, "set style data lines;\n"); |
|
|
657 |
|
|
658 if (! use_gnuplot_for_images) |
|
|
659 for i = 1:ximg_data_idx |
|
|
660 view_fcn (xlim, ylim, ximg_data{i}, view_zoom, view_cmd); |
|
|
661 endfor |
|
|
662 endif |
|
|
663 |
|
|
664 if (have_data) |
|
|
665 |
|
|
666 if (nd == 2) |
|
|
667 plot_cmd = "plot"; |
|
|
668 else |
|
|
669 plot_cmd = "splot"; |
|
|
670 rot_x = 90 - axis_obj.view(2); |
|
|
671 rot_z = axis_obj.view(1); |
|
|
672 while (rot_z < 0) |
|
|
673 rot_z += 360; |
|
|
674 endwhile |
|
6461
|
675 fputs (plot_stream, "set ticslevel 0;\n"); |
|
6405
|
676 fprintf (plot_stream, "set view %g, %g;\n", rot_x, rot_z); |
|
|
677 endif |
|
6611
|
678 fprintf (plot_stream, "%s \"-\" %s %s %s \\\n", plot_cmd, |
|
6464
|
679 usingclause{1}, titlespec{1}, withclause{1}); |
|
6405
|
680 for i = 2:data_idx |
|
6611
|
681 fprintf (plot_stream, ", \"-\" %s %s %s \\\n", |
|
6464
|
682 usingclause{i}, titlespec{i}, withclause{i}); |
|
6405
|
683 endfor |
|
|
684 fputs (plot_stream, ";\n"); |
|
|
685 for i = 1:data_idx |
|
6464
|
686 if (is_image_data(i)) |
|
|
687 fwrite (plot_stream, data{i}, "float32"); |
|
|
688 else |
|
6510
|
689 __gnuplot_write_data__ (plot_stream, data{i}, nd, parametric(i)); |
|
6405
|
690 endif |
|
|
691 endfor |
|
6431
|
692 else |
|
|
693 fputs (plot_stream, "plot \"-\";\nInf Inf\ne\n"); |
|
6405
|
694 endif |
|
|
695 |
|
|
696 fflush (plot_stream); |
|
|
697 |
|
|
698 else |
|
|
699 print_usage (); |
|
|
700 endif |
|
|
701 |
|
|
702 endfunction |
|
|
703 |
|
6453
|
704 function [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat, tx) |
|
|
705 xdat = xdat(! isinf (xdat)); |
|
|
706 xmin = min (xmin, min (xdat)); |
|
|
707 xmax = max (xmax, max (xdat)); |
|
|
708 if (nargin == 5) |
|
|
709 tx = tx(! isinf (xdat) & tx > 0); |
|
|
710 xminp = min (xminp, min (tx)); |
|
|
711 else |
|
|
712 xminp = min (xminp, min (xdat(xdat>0))); |
|
|
713 endif |
|
|
714 endfunction |
|
|
715 |
|
6405
|
716 ## Attempt to make "nice" limits from the actual max and min of the |
|
|
717 ## data. For log plots, we will also use the smallest strictly positive |
|
|
718 ## value. |
|
|
719 |
|
|
720 function lim = get_axis_limits (min_val, max_val, min_pos, logscale) |
|
|
721 |
|
|
722 if (logscale) |
|
|
723 if (isinf (min_pos)) |
|
|
724 warning ("axis: logscale with no positive values to plot"); |
|
|
725 endif |
|
6527
|
726 if (min_val <= 0) |
|
6405
|
727 min_val = min_pos; |
|
6527
|
728 if (max_val <= 0) |
|
6405
|
729 max_val = min_pos; |
|
|
730 endif |
|
6527
|
731 warning ("axis: omitting nonpositive data in log plot"); |
|
6405
|
732 endif |
|
6512
|
733 ## FIXME -- maybe this test should also be relative? |
|
|
734 if (abs (min_val - max_val) < sqrt (eps)) |
|
|
735 min_val *= 0.9; |
|
|
736 max_val *= 1.1; |
|
6405
|
737 endif |
|
|
738 min_val = 10 ^ floor (log10 (min_val)); |
|
|
739 max_val = 10 ^ ceil (log10 (max_val)); |
|
|
740 else |
|
|
741 if (min_val == 0 && max_val == 0) |
|
|
742 min_val = -1; |
|
|
743 max_val = 1; |
|
6512
|
744 ## FIXME -- maybe this test should also be relative? |
|
|
745 elseif (abs (min_val - max_val) < sqrt (eps)) |
|
|
746 min_val -= 0.1 * abs (min_val); |
|
|
747 max_val += 0.1 * abs (max_val); |
|
6405
|
748 endif |
|
|
749 ## FIXME -- to do a better job, we should consider the tic spacing. |
|
|
750 scale = 10 ^ floor (log10 (max_val - min_val) - 1); |
|
|
751 min_val = scale * floor (min_val / scale); |
|
|
752 max_val = scale * ceil (max_val / scale); |
|
|
753 endif |
|
|
754 |
|
|
755 lim = [min_val, max_val]; |
|
|
756 |
|
|
757 endfunction |
|
|
758 |
|
6465
|
759 function [style, typ, with] = do_linestyle_command (obj, idx, plot_stream) |
|
6405
|
760 |
|
6413
|
761 persistent have_newer_gnuplot ... |
|
|
762 = compare_versions (__gnuplot_version__ (), "4.0", ">"); |
|
6405
|
763 |
|
|
764 if (have_newer_gnuplot) |
|
|
765 fprintf (plot_stream, "set style line %d default;\n", idx); |
|
|
766 endif |
|
|
767 fprintf (plot_stream, "set style line %d", idx); |
|
|
768 |
|
|
769 found_style = false; |
|
6425
|
770 typ = NaN; |
|
6465
|
771 with = ""; |
|
6405
|
772 |
|
6425
|
773 if (isfield (obj, "color")) |
|
6405
|
774 color = obj.color; |
|
|
775 if (isnumeric (color)) |
|
6425
|
776 if (have_newer_gnuplot) |
|
|
777 fprintf (plot_stream, " linecolor rgb \"#%02x%02x%02x\"", |
|
|
778 round (255*color)); |
|
|
779 else |
|
|
780 if (isequal (color, [0,0,0])) |
|
|
781 typ = -1; |
|
|
782 elseif (isequal (color, [1,0,0])) |
|
|
783 typ = 1; |
|
|
784 elseif (isequal (color, [0,1,0])) |
|
|
785 typ = 2; |
|
|
786 elseif (isequal (color, [0,0,1])) |
|
|
787 typ = 3; |
|
|
788 elseif (isequal (color, [1,0,1])) |
|
|
789 typ = 4; |
|
|
790 elseif (isequal (color, [0,1,1])) |
|
|
791 typ = 5; |
|
|
792 elseif (isequal (color, [1,1,1])) |
|
|
793 typ = 6; |
|
|
794 elseif (isequal (color, [1,1,0])) |
|
|
795 typ = 7; |
|
|
796 else |
|
|
797 typ = 2; |
|
|
798 endif |
|
|
799 endif |
|
6405
|
800 endif |
|
|
801 found_style = true; |
|
|
802 endif |
|
|
803 |
|
|
804 if (isfield (obj, "linestyle")) |
|
|
805 switch (obj.linestyle) |
|
|
806 case "-" |
|
6415
|
807 lt = "1"; |
|
6405
|
808 case "--" |
|
6415
|
809 lt = "2"; |
|
6405
|
810 case ":" |
|
6415
|
811 lt = "3"; |
|
6405
|
812 case "-." |
|
6415
|
813 lt = "6"; |
|
6405
|
814 case "none" |
|
|
815 lt = ""; |
|
|
816 otherwise |
|
|
817 lt = ""; |
|
|
818 endswitch |
|
6415
|
819 if (! isempty (lt)) |
|
|
820 fprintf (plot_stream, " linetype %s", lt); |
|
|
821 found_style = true; |
|
|
822 endif |
|
6405
|
823 else |
|
|
824 lt = ""; |
|
|
825 endif |
|
|
826 |
|
|
827 if (isfield (obj, "linewidth")) |
|
6465
|
828 if (have_newer_gnuplot) |
|
|
829 fprintf (plot_stream, " linewidth %f", obj.linewidth); |
|
|
830 else |
|
|
831 with = sprintf ("%s lw %f", with, obj.linewidth); |
|
|
832 endif |
|
6405
|
833 found_style = true; |
|
|
834 endif |
|
|
835 |
|
|
836 if (isfield (obj, "marker")) |
|
|
837 switch (obj.marker) |
|
|
838 case "+" |
|
|
839 pt = "1"; |
|
|
840 case "o" |
|
6413
|
841 pt = "6"; |
|
6405
|
842 case "*" |
|
|
843 pt = "3"; |
|
|
844 case "." |
|
6413
|
845 pt = "7"; |
|
6405
|
846 case "x" |
|
|
847 pt = "2"; |
|
|
848 case {"square", "s"} |
|
|
849 pt = "5"; |
|
|
850 case {"diamond", "d"} |
|
|
851 pt = "13"; |
|
|
852 case "^" |
|
|
853 pt = "9"; |
|
|
854 case "v" |
|
|
855 pt = "11"; |
|
|
856 case ">" |
|
|
857 pt = "8"; |
|
|
858 case "<" |
|
|
859 pt = "10"; |
|
|
860 case {"pentagram", "p"} |
|
|
861 pt = "4"; |
|
|
862 case {"hexagram", "h"} |
|
6413
|
863 pt = "12"; |
|
6405
|
864 case "none" |
|
|
865 pt = ""; |
|
|
866 otherwise |
|
|
867 pt = ""; |
|
|
868 endswitch |
|
|
869 if (! isempty (pt)) |
|
6465
|
870 if (have_newer_gnuplot) |
|
|
871 fprintf (plot_stream, " pointtype %s", pt); |
|
|
872 else |
|
|
873 with = sprintf ("%s pt %s", with, pt); |
|
|
874 endif |
|
6405
|
875 found_style = true; |
|
|
876 endif |
|
|
877 else |
|
|
878 pt = ""; |
|
|
879 endif |
|
|
880 |
|
|
881 style = "lines"; |
|
|
882 if (isempty (lt)) |
|
|
883 if (! isempty (pt)) |
|
|
884 style = "points"; |
|
|
885 endif |
|
|
886 elseif (! isempty (pt)) |
|
|
887 style = "linespoints"; |
|
|
888 endif |
|
|
889 |
|
6465
|
890 if (isfield (obj, "markersize")) |
|
|
891 if (have_newer_gnuplot) |
|
|
892 fprintf (plot_stream, " pointsize %f", obj.markersize); |
|
|
893 else |
|
|
894 if (! strcmp (style, "lines")) |
|
|
895 with = sprintf ("%s ps %f", with, obj.markersize); |
|
|
896 endif |
|
|
897 endif |
|
|
898 found_style = true; |
|
|
899 endif |
|
|
900 |
|
6405
|
901 if (have_newer_gnuplot && ! found_style) |
|
|
902 fputs (plot_stream, " default"); |
|
|
903 endif |
|
|
904 |
|
|
905 fputs (plot_stream, ";\n"); |
|
|
906 |
|
|
907 endfunction |
|
6510
|
908 |
|
|
909 function __gnuplot_write_data__ (plot_stream, data, nd, parametric) |
|
|
910 |
|
|
911 ## DATA is already transposed. |
|
|
912 |
|
|
913 ## FIXME -- this may need to be converted to C++ for speed. |
|
|
914 |
|
6605
|
915 ## Convert NA elements to normal NaN values because fprintf writes |
|
|
916 ## "NA" and that confuses gnuplot. |
|
|
917 idx = find (isna (data)); |
|
|
918 if (any (idx)) |
|
|
919 data(idx) = NaN; |
|
|
920 endif |
|
|
921 |
|
6510
|
922 if (nd == 2) |
|
|
923 nan_elts = find (sum (isnan (data))); |
|
|
924 fmt = strcat (repmat ("%g ", 1, rows (data)), "\n"); |
|
|
925 if (isempty (nan_elts)) |
|
|
926 fprintf (plot_stream, fmt, data); |
|
|
927 else |
|
|
928 n = columns (data); |
|
|
929 have_nans = true; |
|
|
930 num_nan_elts = numel (nan_elts); |
|
|
931 k = 1; |
|
|
932 for i = 1:n |
|
|
933 if (have_nans && i == nan_elts(k)) |
|
|
934 fputs (plot_stream, "\n"); |
|
|
935 have_nans = ++k <= num_nan_elts; |
|
|
936 else |
|
|
937 fprintf (plot_stream, fmt, data(:,i)); |
|
|
938 endif |
|
|
939 endfor |
|
|
940 endif |
|
|
941 else |
|
|
942 ## FIXME -- handle NaNs here too? |
|
|
943 if (parametric) |
|
|
944 fprintf (plot_stream, "%g %g %g\n", data); |
|
|
945 else |
|
|
946 nc = columns (data); |
|
|
947 for j = 1:3:nc |
|
|
948 fprintf (plot_stream, "%g %g %g\n", data(:,j:j+2)'); |
|
|
949 fputs (plot_stream, "\n"); |
|
|
950 endfor |
|
|
951 endif |
|
|
952 endif |
|
|
953 fputs (plot_stream, "e\n"); |
|
|
954 |
|
|
955 endfunction |
