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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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6405
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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 if (isempty (t.string)) |
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72 fputs (plot_stream, "unset xlabel;\n"); |
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73 else |
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74 fprintf (plot_stream, "set xlabel \"%s\";\n", |
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75 undo_string_escapes (t.string)); |
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76 endif |
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77 endif |
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78 |
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79 if (! isempty (axis_obj.ylabel)) |
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80 t = get (axis_obj.ylabel); |
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81 if (isempty (t.string)) |
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82 fputs (plot_stream, "unset ylabel;\n"); |
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83 else |
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84 fprintf (plot_stream, "set ylabel \"%s\";\n", |
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85 undo_string_escapes (t.string)); |
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86 endif |
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87 endif |
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88 |
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89 if (! isempty (axis_obj.zlabel)) |
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90 t = get (axis_obj.zlabel); |
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91 if (isempty (t.string)) |
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92 fputs (plot_stream, "unset zlabel;\n"); |
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93 else |
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94 fprintf (plot_stream, "set zlabel \"%s\";\n", |
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95 undo_string_escapes (t.string)); |
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96 endif |
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97 endif |
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98 |
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99 if (strcmp (axis_obj.xgrid, "on")) |
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100 fputs (plot_stream, "set grid xtics;\n"); |
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101 else |
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102 fputs (plot_stream, "set grid noxtics;\n"); |
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103 endif |
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104 |
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105 if (strcmp (axis_obj.ygrid, "on")) |
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106 fputs (plot_stream, "set grid ytics;\n"); |
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107 else |
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108 fputs (plot_stream, "set grid noytics;\n"); |
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109 endif |
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110 |
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111 if (strcmp (axis_obj.zgrid, "on")) |
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112 fputs (plot_stream, "set grid ztics;\n"); |
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113 else |
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114 fputs (plot_stream, "set grid ztics;\n"); |
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115 endif |
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116 |
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117 if (strcmp (axis_obj.xminorgrid, "on")) |
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118 fputs (plot_stream, "set mxtics 5;\n"); |
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119 fputs (plot_stream, "set grid mxtics;\n"); |
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120 else |
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121 fputs (plot_stream, "set grid nomxtics;\n"); |
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122 endif |
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123 |
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124 if (strcmp (axis_obj.yminorgrid, "on")) |
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125 fputs (plot_stream, "set mytics 5;\n"); |
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126 fputs (plot_stream, "set grid mytics;\n"); |
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127 else |
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128 fputs (plot_stream, "set grid nomytics;\n"); |
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129 endif |
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130 |
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131 if (strcmp (axis_obj.zminorgrid, "on")) |
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132 fputs (plot_stream, "set mztics 5;\n"); |
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133 fputs (plot_stream, "set grid mztics;\n"); |
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134 else |
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135 fputs (plot_stream, "set grid nomztics;\n"); |
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136 endif |
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137 |
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138 if (strcmp (axis_obj.xtickmode, "manual")) |
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139 xtic = axis_obj.xtick; |
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140 if (isempty (xtic)) |
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141 fputs (plot_stream, "unset xtics;\n"); |
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142 else |
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143 ## FIXME |
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144 endif |
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145 else |
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146 fputs (plot_stream, "set xtics;\n"); |
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147 endif |
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148 |
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149 if (strcmp (axis_obj.ytickmode, "manual")) |
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150 ytic = axis_obj.ytick; |
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151 if (isempty (ytic)) |
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152 fputs (plot_stream, "unset ytics;\n"); |
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153 else |
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154 ## FIXME |
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155 endif |
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156 else |
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157 fputs (plot_stream, "set ytics;\n"); |
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158 endif |
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159 |
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160 if (strcmp (axis_obj.ztickmode, "manual")) |
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161 ztic = axis_obj.ztick; |
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162 if (isempty (ztic)) |
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163 fputs (plot_stream, "unset ztics;\n"); |
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164 else |
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165 ## FIXME |
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166 endif |
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167 else |
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168 fputs (plot_stream, "set ztics;\n"); |
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169 endif |
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170 |
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171 if (strcmp (axis_obj.xticklabelmode, "manual")) |
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172 ## FIXME -- we should be able to specify the actual tick labels, |
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173 ## not just the format. |
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174 xticlabel = axis_obj.xticklabel; |
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175 fprintf (plot_stream, "set format x \"%s\";\n", xticlabel); |
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176 else |
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177 fputs (plot_stream, "set xtics;\n"); |
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178 endif |
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179 |
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180 if (strcmp (axis_obj.yticklabelmode, "manual")) |
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181 ## FIXME -- we should be able to specify the actual tick labels, |
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182 ## not just the format. |
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183 yticlabel = axis_obj.yticklabel; |
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184 fprintf (plot_stream, "set format y \"%s\";\n", yticlabel); |
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185 else |
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186 fputs (plot_stream, "set ytics;\n"); |
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187 endif |
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188 |
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189 if (strcmp (axis_obj.zticklabelmode, "manual")) |
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190 ## FIXME -- we should be able to specify the actual tick labels, |
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191 ## not just the format. |
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192 zticlabel = axis_obj.zticklabel; |
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193 fprintf (plot_stream, "set format z \"%s\";\n", zticlabel); |
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194 else |
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195 fputs (plot_stream, "set ztics;\n"); |
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196 endif |
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197 |
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198 xlogscale = strcmp (axis_obj.xscale, "log"); |
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199 if (xlogscale) |
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200 fputs (plot_stream, "set logscale x;\n"); |
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201 else |
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202 fputs (plot_stream, "unset logscale x;\n"); |
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203 endif |
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204 |
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205 ylogscale = strcmp (axis_obj.yscale, "log"); |
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206 if (ylogscale) |
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207 fputs (plot_stream, "set logscale y;\n"); |
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208 else |
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209 fputs (plot_stream, "unset logscale y;\n"); |
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210 endif |
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211 |
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212 zlogscale = strcmp (axis_obj.zscale, "log"); |
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213 if (zlogscale) |
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214 fputs (plot_stream, "set logscale z;\n"); |
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215 else |
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216 fputs (plot_stream, "unset logscale z;\n"); |
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217 endif |
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218 |
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219 xautoscale = strcmp (axis_obj.xlimmode, "auto"); |
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220 yautoscale = strcmp (axis_obj.ylimmode, "auto"); |
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221 zautoscale = strcmp (axis_obj.zlimmode, "auto"); |
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222 |
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223 kids = axis_obj.children; |
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224 |
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225 nd = 0; |
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226 data_idx = 0; |
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227 data = cell (); |
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228 |
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229 xminp = yminp = zminp = Inf; |
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230 xmax = ymax = zmax = -Inf; |
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231 xmin = ymin = zmin = Inf; |
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232 |
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233 palette_set = 0; |
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234 |
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235 [view_cmd, view_fcn, view_zoom] = image_viewer (); |
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236 use_gnuplot_for_images = (ischar (view_fcn) |
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237 && strcmp (view_fcn, "gnuplot_internal")); |
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238 |
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239 ximg_data = {}; |
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240 ximg_data_idx = 0; |
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241 |
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242 for i = 1:length (kids) |
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243 |
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244 obj = get (kids(i)); |
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245 |
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246 switch (obj.type) |
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247 case "image" |
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248 ## FIXME - Is there a better way to determine if the plot |
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249 ## command should be "plot" or "splot"????? Could have images |
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250 ## projected into 3D so there is really no reason to limit |
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251 ## this. |
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252 if (nd == 0) |
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253 nd = 2; |
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254 endif |
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255 |
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256 img_data = obj.cdata; |
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257 img_colormap = parent_figure_obj.colormap; |
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258 img_xdata = obj.xdata; |
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259 img_ydata = obj.ydata; |
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260 |
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261 if (use_gnuplot_for_images) |
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262 |
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263 data_idx++; |
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264 |
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265 [y_dim, x_dim] = size (img_data(:,:,1)); |
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266 if (x_dim > 1) |
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267 dx = abs (img_xdata(2)-img_xdata(1))/(x_dim-1); |
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268 else |
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269 dx = 1; |
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270 endif |
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271 if (y_dim > 1) |
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272 dy = abs (img_ydata(2)-img_ydata(1))/(y_dim-1); |
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273 else |
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274 dy = 1; |
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275 endif |
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276 x_origin = min (img_xdata); |
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277 y_origin = min (img_ydata); |
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278 |
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279 if (nd == 2) |
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280 if (xautoscale) |
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281 xmin = min (xmin, min (img_xdata) - dx/2); |
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282 xmax = max (xmax, max (img_xdata) + dx/2); |
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283 xminp = min (xminp, min (img_xdata((img_xdata - dx/2)>0)) - dx/2); |
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284 endif |
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285 if (yautoscale) |
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286 ymin = min (ymin, min (img_ydata) - dy/2); |
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287 ymax = max (ymax, max (img_ydata) + dy/2); |
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288 yminp = min (yminp, min (img_ydata((img_ydata - dy/2)>0)) - dy/2); |
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289 endif |
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290 else |
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291 ## Can have images in 3D, but the image routines don't seem |
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292 ## to have a means of arbitrary projection. |
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293 endif |
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294 |
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295 ## Let the file be deleted when Octave exits or `purge_tmp_files' |
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296 ## is called. |
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297 [img_fid, img_fname] = mkstemp (fullfile (P_tmpdir, "gpimageXXXXXX"), 1); |
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298 if (ndims (img_data) == 3) |
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299 fwrite (img_fid, permute (img_data, [3, 1, 2])(:), "float"); |
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300 format = "1:2:3"; |
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301 imagetype = "rgbimage"; |
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302 else |
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303 fwrite (img_fid, img_data(:), "float"); |
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304 format = "1"; |
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305 imagetype = "image"; |
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306 ## Only need to set pallete once because it doesn't change |
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307 ## on a figure. |
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308 if (! palette_set) |
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309 palette_set = 1; |
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310 palette_size = rows (img_colormap); |
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311 fprintf (plot_stream, |
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312 "set palette positive color model RGB maxcolors %i;\n", |
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313 palette_size); |
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314 if (palette_size <= 128) |
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315 ## Break up command to avoid buffer overflow. |
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316 fprintf (plot_stream, "set palette file \"-\" using 1:2:3:4;\n"); |
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317 for i = 1:palette_size |
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318 fprintf (plot_stream, "%g %g %g %g;\n", |
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319 1e-3*round (1e3*[(i-1)/(palette_size-1), img_colormap(i,:)])); |
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320 endfor |
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321 fprintf (plot_stream, "e;\n"); |
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322 else |
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323 ## Let the file be deleted when Octave exits or |
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324 ## `purge_tmp_files' is called. |
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325 [cmap_fid, cmap_fname, msg] = mkstemp (fullfile (P_tmpdir, "gpimageXXXXXX"), 1); |
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326 fwrite (cmap_fid, img_colormap', "float32", 0, "ieee-le"); |
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327 fclose (cmap_fid); |
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328 fprintf (plot_stream, |
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329 "set palette file \"%s\" binary record=%d using 1:2:3;\n", |
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330 cmap_fname, palette_size); |
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331 endif |
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332 endif |
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333 endif |
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334 fclose (img_fid); |
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335 |
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336 filespec{data_idx} = img_fname; |
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337 titlespec{data_idx} = ""; |
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338 usingclause{data_idx} = sprintf ("binary array=%dx%d scan=yx flipy origin=(%g,%g) dx=%g dy=%g using %s", |
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339 x_dim, y_dim, x_origin, y_origin, dx, dy, format); |
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340 withclause{data_idx} = sprintf ("with %s", imagetype); |
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341 |
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342 ## Data in file, set to zero for data available test to pass |
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343 ## below. |
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344 data{data_idx} = 0; |
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345 |
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346 else |
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347 ximg_data{++ximg_data_idx} = img_data; |
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348 endif |
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349 |
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350 case "line" |
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351 data_idx++; |
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352 filespec{data_idx} = '-'; |
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353 if (isempty (obj.keylabel)) |
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354 titlespec{data_idx} = "title \"\""; |
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355 else |
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356 titlespec{data_idx} = strcat ("title \"", obj.keylabel, "\""); |
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357 endif |
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358 style = do_linestyle_command (obj, data_idx, plot_stream); |
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359 usingclause{data_idx} = ""; |
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360 withclause{data_idx} = sprintf ("with %s linestyle %d", |
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361 style, data_idx); |
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362 parametric(i) = true; |
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363 if (! isempty (obj.zdata)) |
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364 nd = 3; |
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365 xdat = obj.xdata(:); |
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366 ydat = obj.ydata(:); |
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367 zdat = obj.zdata(:); |
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368 if (xautoscale) |
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369 xmin = min (xmin, min (xdat)); |
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370 xmax = max (xmax, max (xdat)); |
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371 xminp = min (xminp, min (xdat(xdat>0))); |
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372 endif |
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373 if (yautoscale) |
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374 ymin = min (ymin, min (ydat)); |
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375 ymax = max (ymax, max (ydat)); |
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376 yminp = min (yminp, min (ydat(ydat>0))); |
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377 endif |
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378 if (zautoscale) |
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379 zmin = min (zmin, min (zdat)); |
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380 zmax = max (zmax, max (zdat)); |
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381 zminp = min (zminp, min (zdat(zdat>0))); |
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382 endif |
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383 data{data_idx} = [xdat, ydat, zdat]'; |
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384 usingclause{data_idx} = "using ($1):($2):($3)"; |
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385 fputs (plot_stream, "set parametric;\n"); |
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386 fputs (plot_stream, "unset hidden3d;\n"); |
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387 fputs (plot_stream, "set style data lines;\n"); |
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388 fputs (plot_stream, "set surface;\n"); |
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389 fputs (plot_stream, "unset contour;\n"); |
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390 else |
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391 nd = 2; |
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392 xdat = obj.xdata(:); |
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393 ydat = obj.ydata(:); |
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394 ldat = obj.ldata; |
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395 yerr = xerr = false; |
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396 if (! isempty (ldat)) |
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397 yerr = true; |
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398 ldat = ldat(:); |
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399 endif |
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400 udat = obj.udata; |
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401 if (! isempty (udat)) |
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402 udat = udat(:); |
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403 endif |
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404 xldat = obj.xldata; |
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405 if (! isempty (xldat)) |
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406 xerr = true; |
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407 xldat = xldat(:); |
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408 endif |
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409 xudat = obj.xudata; |
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410 if (! isempty (xudat)) |
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411 xudat = xudat(:); |
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412 endif |
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413 if (yerr) |
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414 ylo = ydat-ldat; |
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415 yhi = ydat+udat; |
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416 if (yautoscale) |
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417 ty = [ydat; ylo; yhi]; |
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418 ymin = min (ymin, min (ty)); |
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419 ymax = max (ymax, max (ty)); |
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420 yminp = min (yminp, min (ty(ty>0))); |
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421 endif |
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422 if (xerr) |
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423 xlo = xdat-xldat; |
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424 xhi = xdat+xudat; |
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425 if (xautoscale) |
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426 tx = [xdat; xlo; xhi]; |
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427 xmin = min (xmin, min (tx)); |
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428 xmax = max (xmax, max (tx)); |
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429 xminp = min (xminp, min (tx(tx>0))); |
|
|
430 endif |
|
|
431 data{data_idx} = [xdat, ydat, xlo, xhi, ylo, yhi]'; |
|
|
432 usingclause{data_idx} = "using ($1):($2):($3):($4):($5):($6)"; |
|
|
433 withclause{data_idx} = sprintf ("with xyerrorbars linestyle %d", |
|
|
434 data_idx); |
|
|
435 else |
|
|
436 if (xautoscale) |
|
|
437 xmin = min (xmin, min (xdat)); |
|
|
438 xmax = max (xmax, max (xdat)); |
|
|
439 xminp = min (xminp, min (tx(tx>0))); |
|
|
440 endif |
|
|
441 data{data_idx} = [xdat, ydat, ylo, yhi]'; |
|
|
442 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
443 withclause{data_idx} = sprintf ("with yerrorbars linestyle %d", |
|
|
444 data_idx); |
|
|
445 endif |
|
|
446 elseif (xerr) |
|
|
447 xlo = xdat-xldat; |
|
|
448 xhi = xdat+xudat; |
|
|
449 if (xautoscale) |
|
|
450 tx = [xdat; xlo; xhi]; |
|
|
451 xmin = min (xmin, min (tx)); |
|
|
452 xmax = max (xmax, max (tx)); |
|
|
453 xminp = min (xminp, min (tx(tx>0))); |
|
|
454 endif |
|
|
455 if (yautoscale) |
|
|
456 ymin = min (ymin, min (ydat)); |
|
|
457 ymax = max (ymax, max (ydat)); |
|
|
458 yminp = min (yminp, min (ty(ty>0))); |
|
|
459 endif |
|
|
460 data{data_idx} = [xdat, ydat, xlo, xhi]'; |
|
|
461 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
462 withclause{data_idx} = sprintf ("with xerrorbars linestyle %d", |
|
|
463 data_idx); |
|
|
464 else |
|
|
465 if (xautoscale) |
|
|
466 xmin = min (xmin, min (xdat)); |
|
|
467 xmax = max (xmax, max (xdat)); |
|
|
468 xminp = min (xminp, min (xdat(xdat>0))); |
|
|
469 endif |
|
|
470 if (yautoscale) |
|
|
471 ymin = min (ymin, min (ydat)); |
|
|
472 ymax = max (ymax, max (ydat)); |
|
|
473 yminp = min (yminp, min (ydat(ydat>0))); |
|
|
474 endif |
|
|
475 data{data_idx} = [xdat, ydat]'; |
|
|
476 usingclause{data_idx} = "using ($1):($2)"; |
|
|
477 endif |
|
|
478 endif |
|
|
479 |
|
|
480 case "surface" |
|
|
481 data_idx++; |
|
|
482 style = do_linestyle_command (obj, data_idx, plot_stream); |
|
|
483 filespec{data_idx} = '-'; |
|
|
484 if (isempty (obj.keylabel)) |
|
|
485 titlespec{data_idx} = "title \"\""; |
|
|
486 else |
|
|
487 titlespec{data_idx} = strcat ("title \"", obj.keylabel, "\""); |
|
|
488 endif |
|
|
489 usingclause{data_idx} = ""; |
|
|
490 withclause{data_idx} = sprintf ("with %s linestyle %d", |
|
|
491 style, data_idx); |
|
|
492 parametric(i) = false; |
|
|
493 nd = 3; |
|
|
494 xdat = obj.xdata; |
|
|
495 ydat = obj.ydata; |
|
|
496 zdat = obj.zdata; |
|
|
497 if (xautoscale) |
|
|
498 tx = xdat(:); |
|
|
499 xmin = min (xmin, min (tx)); |
|
|
500 xmax = max (xmax, max (tx)); |
|
|
501 xminp = min (xminp, min (tx(tx>0))); |
|
|
502 endif |
|
|
503 if (yautoscale) |
|
|
504 ty = ydat(:); |
|
|
505 ymin = min (ymin, min (ty)); |
|
|
506 ymax = max (ymax, max (ty)); |
|
|
507 yminp = min (yminp, min (ty(ty>0))); |
|
|
508 endif |
|
|
509 if (zautoscale) |
|
|
510 tz = zdat(:); |
|
|
511 zmin = min (zmin, min (tz)); |
|
|
512 zmax = max (zmax, max (tz)); |
|
|
513 zminp = min (zminp, min (tz(tz>0))); |
|
|
514 endif |
|
|
515 err = false; |
|
|
516 if (isvector (xdat) && isvector (ydat) && ismatrix (zdat)) |
|
|
517 if (rows (zdat) == length (ydat) && columns (zdat) == length (xdat)) |
|
|
518 [xdat, ydat] = meshgrid (xdat, ydat); |
|
|
519 else |
|
|
520 err = true; |
|
|
521 endif |
|
|
522 elseif (ismatrix (xdat) && ismatrix (ydat) && ismatrix (zdat)) |
|
|
523 if (! (size_equal (xdat, ydat) && size_equal (xdat, zdat))) |
|
|
524 err = true; |
|
|
525 endif |
|
|
526 else |
|
|
527 err = true; |
|
|
528 endif |
|
|
529 if (err) |
|
|
530 error ("__go_draw_axes__: invalid grid data"); |
|
|
531 endif |
|
|
532 xlen = columns (zdat); |
|
|
533 ylen = rows (zdat); |
|
|
534 if (xlen == columns (xdat) && xlen == columns (ydat) |
|
|
535 && ylen == rows (xdat) && ylen == rows (ydat)) |
|
|
536 len = 3 * xlen; |
|
|
537 zz = zeros (ylen, len); |
|
|
538 k = 1; |
|
|
539 for kk = 1:3:len |
|
|
540 zz(:,kk) = xdat(:,k); |
|
|
541 zz(:,kk+1) = ydat(:,k); |
|
|
542 zz(:,kk+2) = zdat(:,k); |
|
|
543 k++; |
|
|
544 endfor |
|
|
545 data{data_idx} = zz; |
|
|
546 endif |
|
|
547 usingclause{data_idx} = "using ($1):($2):($3)"; |
|
|
548 withclause{data_idx} = "with line palette"; |
|
|
549 |
|
|
550 fputs (plot_stream, "unset parametric;\n"); |
|
|
551 fputs (plot_stream, "set hidden3d;\n"); |
|
|
552 fputs (plot_stream, "set style data lines;\n"); |
|
|
553 fputs (plot_stream, "set surface;\n"); |
|
|
554 fputs (plot_stream, "unset contour;\n"); |
|
|
555 fputs (plot_stream, "set palette defined (0 \"dark-blue\", 1 \"blue\", 2 \"cyan\", 3 \"yellow\", 4 \"red\" , 5 \"dark-red\");\n"); |
|
|
556 fputs (plot_stream, "unset colorbox;\n"); |
|
|
557 |
|
|
558 case "text" |
|
|
559 lpos = obj.position; |
|
|
560 label = obj.string; |
|
|
561 halign = obj.horizontalalignment; |
|
|
562 if (nd == 3) |
|
|
563 fprintf (plot_stream, "set label \"%s\" at %d,%d,%d %s;\n", |
|
|
564 undo_string_escapes (label), |
|
|
565 lpos(1), lpos(2), lpos(3), halign); |
|
|
566 else |
|
|
567 fprintf (plot_stream, "set label \"%s\" at %d,%d %s;\n", |
|
|
568 undo_string_escapes (label), |
|
|
569 lpos(1), lpos(2), halign); |
|
|
570 endif |
|
|
571 |
|
|
572 otherwise |
|
|
573 error ("__go_draw_axes__: unknown object class, %s", |
|
|
574 obj.type); |
|
|
575 endswitch |
|
|
576 |
|
|
577 endfor |
|
|
578 |
|
|
579 have_data = ! isempty (data); |
|
|
580 |
|
|
581 if (xautoscale && have_data) |
|
|
582 xlim = get_axis_limits (xmin, xmax, xminp, xlogscale); |
|
|
583 set (h, "xlim", xlim, "xlimmode", "auto"); |
|
|
584 else |
|
|
585 xlim = axis_obj.xlim; |
|
|
586 endif |
|
|
587 if (strcmp (axis_obj.xdir, "reverse")) |
|
|
588 xdir = "reverse"; |
|
|
589 else |
|
|
590 xdir = "noreverse"; |
|
|
591 endif |
|
|
592 fprintf (plot_stream, "set xrange [%g:%g] %s;\n", xlim, xdir); |
|
|
593 |
|
|
594 if (yautoscale && have_data) |
|
|
595 ylim = get_axis_limits (ymin, ymax, yminp, ylogscale); |
|
|
596 set (h, "ylim", ylim, "ylimmode", "auto"); |
|
|
597 else |
|
|
598 ylim = axis_obj.ylim; |
|
|
599 endif |
|
|
600 if (strcmp (axis_obj.ydir, "reverse")) |
|
|
601 ydir = "reverse"; |
|
|
602 else |
|
|
603 ydir = "noreverse"; |
|
|
604 endif |
|
|
605 fprintf (plot_stream, "set yrange [%g:%g] %s;\n", ylim, ydir); |
|
|
606 |
|
|
607 if (nd == 3) |
|
|
608 if (zautoscale && have_data) |
|
|
609 zlim = get_axis_limits (zmin, zmax, zminp, zlogscale); |
|
|
610 set (h, "zlim", zlim, "zlimmode", "auto"); |
|
|
611 else |
|
|
612 zlim = axis_obj.zlim; |
|
|
613 endif |
|
|
614 if (strcmp (axis_obj.zdir, "reverse")) |
|
|
615 zdir = "reverse"; |
|
|
616 else |
|
|
617 zdir = "noreverse"; |
|
|
618 endif |
|
|
619 fprintf (plot_stream, "set zrange [%g:%g] %s;\n", zlim, zdir); |
|
|
620 endif |
|
|
621 |
|
|
622 if (strcmp (axis_obj.box, "on")) |
|
|
623 if (nd == 3) |
|
|
624 fputs (plot_stream, "set border 4095;\n"); |
|
|
625 else |
|
|
626 fputs (plot_stream, "set border 431;\n"); |
|
|
627 endif |
|
|
628 else |
|
|
629 if (nd == 3) |
|
|
630 fputs (plot_stream, "set border 895;\n"); |
|
|
631 else |
|
|
632 fputs (plot_stream, "set border 3;\n"); |
|
|
633 fputs (plot_stream, "set xtics nomirror; set ytics nomirror;\n"); |
|
|
634 endif |
|
|
635 endif |
|
|
636 |
|
|
637 if (strcmp (axis_obj.key, "on")) |
|
|
638 if (strcmp (axis_obj.keybox, "on")) |
|
|
639 box = "box"; |
|
|
640 else |
|
|
641 box = "nobox"; |
|
|
642 endif |
|
|
643 inout = "inside"; |
|
|
644 switch (axis_obj.keypos) |
|
|
645 case -1 |
|
|
646 pos = "right bottom"; |
|
|
647 inout = "outside"; |
|
|
648 case 1 |
|
|
649 pos = "right top"; |
|
|
650 case 2 |
|
|
651 pos = "left top"; |
|
|
652 case 3 |
|
|
653 pos = "left bottom"; |
|
|
654 case 4 |
|
|
655 pos = "right bottom"; |
|
|
656 otherwise |
|
|
657 pos = ""; |
|
|
658 endswitch |
|
|
659 if (! have_newer_gnuplot) |
|
|
660 inout = ""; |
|
|
661 endif |
|
|
662 fprintf (plot_stream, "set key %s %s %s;\n", inout, pos, box); |
|
|
663 else |
|
|
664 fputs (plot_stream, "unset key;\n"); |
|
|
665 endif |
|
|
666 |
|
|
667 fputs (plot_stream, "set style data lines;\n"); |
|
|
668 |
|
|
669 if (! use_gnuplot_for_images) |
|
|
670 for i = 1:ximg_data_idx |
|
|
671 view_fcn (xlim, ylim, ximg_data{i}, view_zoom, view_cmd); |
|
|
672 endfor |
|
|
673 endif |
|
|
674 |
|
|
675 if (have_data) |
|
|
676 |
|
|
677 if (nd == 2) |
|
|
678 plot_cmd = "plot"; |
|
|
679 else |
|
|
680 plot_cmd = "splot"; |
|
|
681 rot_x = 90 - axis_obj.view(2); |
|
|
682 rot_z = axis_obj.view(1); |
|
|
683 while (rot_z < 0) |
|
|
684 rot_z += 360; |
|
|
685 endwhile |
|
|
686 fprintf (plot_stream, "set view %g, %g;\n", rot_x, rot_z); |
|
|
687 endif |
|
|
688 fprintf (plot_stream, "%s \"%s\" %s %s %s", plot_cmd, |
|
|
689 filespec{1}, usingclause{1}, titlespec{1}, withclause{1}); |
|
|
690 for i = 2:data_idx |
|
|
691 fprintf (plot_stream, ", \"%s\" %s %s %s", |
|
|
692 filespec{i}, usingclause{i}, titlespec{i}, withclause{i}); |
|
|
693 endfor |
|
|
694 fputs (plot_stream, ";\n"); |
|
|
695 for i = 1:data_idx |
|
|
696 if (strcmp (filespec{i}, "-")) |
|
|
697 if (nd == 2) |
|
|
698 fprintf (plot_stream, |
|
|
699 strcat (repmat ("%g ", 1, rows (data{i})), "\n"), |
|
|
700 data{i}); |
|
|
701 else |
|
|
702 if (parametric(i)) |
|
|
703 fprintf (plot_stream, "%g %g %g\n", data{i}); |
|
|
704 else |
|
|
705 tmp = data{i}; |
|
|
706 nc = columns (tmp); |
|
|
707 for j = 1:3:nc |
|
|
708 fprintf (plot_stream, "%g %g %g\n", tmp(:,j:j+2)'); |
|
|
709 fputs (plot_stream, "\n"); |
|
|
710 endfor |
|
|
711 endif |
|
|
712 endif |
|
|
713 fputs (plot_stream, "e\n"); |
|
|
714 endif |
|
|
715 endfor |
|
|
716 endif |
|
|
717 |
|
|
718 fflush (plot_stream); |
|
|
719 |
|
|
720 else |
|
|
721 print_usage (); |
|
|
722 endif |
|
|
723 |
|
|
724 endfunction |
|
|
725 |
|
|
726 ## Attempt to make "nice" limits from the actual max and min of the |
|
|
727 ## data. For log plots, we will also use the smallest strictly positive |
|
|
728 ## value. |
|
|
729 |
|
|
730 function lim = get_axis_limits (min_val, max_val, min_pos, logscale) |
|
|
731 |
|
|
732 if (logscale) |
|
|
733 if (isinf (min_pos)) |
|
|
734 warning ("axis: logscale with no positive values to plot"); |
|
|
735 endif |
|
|
736 if (min_val < 0) |
|
|
737 min_val = min_pos; |
|
|
738 if (max_val < 0) |
|
|
739 max_val = min_pos; |
|
|
740 endif |
|
|
741 warning ("axis: omitting negative data in log plot"); |
|
|
742 endif |
|
|
743 if (min_val == max_val) |
|
|
744 min_val = 0.9 * min_val; |
|
|
745 max_val = 1.1 * max_val; |
|
|
746 endif |
|
|
747 min_val = 10 ^ floor (log10 (min_val)); |
|
|
748 max_val = 10 ^ ceil (log10 (max_val)); |
|
|
749 else |
|
|
750 if (min_val == 0 && max_val == 0) |
|
|
751 min_val = -1; |
|
|
752 max_val = 1; |
|
|
753 elseif (min_val == max_val) |
|
|
754 min_val = 0.9 * min_val; |
|
|
755 max_val = 1.1 * max_val; |
|
|
756 endif |
|
|
757 ## FIXME -- to do a better job, we should consider the tic spacing. |
|
|
758 scale = 10 ^ floor (log10 (max_val - min_val) - 1); |
|
|
759 min_val = scale * floor (min_val / scale); |
|
|
760 max_val = scale * ceil (max_val / scale); |
|
|
761 endif |
|
|
762 |
|
|
763 lim = [min_val, max_val]; |
|
|
764 |
|
|
765 endfunction |
|
|
766 |
|
|
767 function style = do_linestyle_command (obj, idx, plot_stream) |
|
|
768 |
|
6413
|
769 persistent have_newer_gnuplot ... |
|
|
770 = compare_versions (__gnuplot_version__ (), "4.0", ">"); |
|
6405
|
771 |
|
|
772 if (have_newer_gnuplot) |
|
|
773 fprintf (plot_stream, "set style line %d default;\n", idx); |
|
|
774 endif |
|
|
775 fprintf (plot_stream, "set style line %d", idx); |
|
|
776 |
|
|
777 found_style = false; |
|
|
778 |
|
|
779 if (isfield (obj, "color") && have_newer_gnuplot) |
|
|
780 color = obj.color; |
|
|
781 if (isnumeric (color)) |
|
|
782 fprintf (plot_stream, " linecolor rgb \"#%02x%02x%02x\"", |
|
|
783 round (255*color)); |
|
|
784 endif |
|
|
785 found_style = true; |
|
|
786 endif |
|
|
787 |
|
|
788 if (isfield (obj, "linestyle")) |
|
|
789 switch (obj.linestyle) |
|
|
790 case "-" |
|
|
791 lt = "lines"; |
|
|
792 case "--" |
|
|
793 lt = ""; |
|
|
794 case ":" |
|
|
795 lt = ""; |
|
|
796 case "-." |
|
|
797 lt = ""; |
|
|
798 case "none" |
|
|
799 lt = ""; |
|
|
800 otherwise |
|
|
801 lt = ""; |
|
|
802 endswitch |
|
|
803 else |
|
|
804 lt = ""; |
|
|
805 endif |
|
|
806 |
|
|
807 if (isfield (obj, "linewidth")) |
|
|
808 fprintf (plot_stream, " linewidth %f", obj.linewidth); |
|
|
809 found_style = true; |
|
|
810 endif |
|
|
811 |
|
|
812 if (isfield (obj, "marker")) |
|
|
813 switch (obj.marker) |
|
|
814 case "+" |
|
|
815 pt = "1"; |
|
|
816 case "o" |
|
6413
|
817 pt = "6"; |
|
6405
|
818 case "*" |
|
|
819 pt = "3"; |
|
|
820 case "." |
|
6413
|
821 pt = "7"; |
|
6405
|
822 case "x" |
|
|
823 pt = "2"; |
|
|
824 case {"square", "s"} |
|
|
825 pt = "5"; |
|
|
826 case {"diamond", "d"} |
|
|
827 pt = "13"; |
|
|
828 case "^" |
|
|
829 pt = "9"; |
|
|
830 case "v" |
|
|
831 pt = "11"; |
|
|
832 case ">" |
|
|
833 pt = "8"; |
|
|
834 case "<" |
|
|
835 pt = "10"; |
|
|
836 case {"pentagram", "p"} |
|
|
837 pt = "4"; |
|
|
838 case {"hexagram", "h"} |
|
6413
|
839 pt = "12"; |
|
6405
|
840 case "none" |
|
|
841 pt = ""; |
|
|
842 otherwise |
|
|
843 pt = ""; |
|
|
844 endswitch |
|
|
845 if (! isempty (pt)) |
|
|
846 fprintf (plot_stream, " pointtype %s", pt); |
|
|
847 found_style = true; |
|
|
848 endif |
|
|
849 else |
|
|
850 pt = ""; |
|
|
851 endif |
|
|
852 |
|
|
853 if (isfield (obj, "markersize")) |
|
|
854 fprintf (plot_stream, " pointsize %f", obj.markersize); |
|
|
855 found_style = true; |
|
|
856 endif |
|
|
857 |
|
|
858 style = "lines"; |
|
|
859 if (isempty (lt)) |
|
|
860 if (! isempty (pt)) |
|
|
861 style = "points"; |
|
|
862 endif |
|
|
863 elseif (! isempty (pt)) |
|
|
864 style = "linespoints"; |
|
|
865 endif |
|
|
866 |
|
|
867 if (have_newer_gnuplot && ! found_style) |
|
|
868 fputs (plot_stream, " default"); |
|
|
869 endif |
|
|
870 |
|
|
871 fputs (plot_stream, ";\n"); |
|
|
872 |
|
|
873 endfunction |
