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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 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 = realmax (); |
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230 xmax = ymax = zmax = -realmax (); |
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231 xmin = ymin = zmin = realmax (); |
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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 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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6405
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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, typ] = do_linestyle_command (obj, data_idx, plot_stream); |
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359 usingclause{data_idx} = ""; |
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360 if (have_newer_gnuplot || isnan (typ)) |
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361 withclause{data_idx} = sprintf ("with %s linestyle %d", |
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362 style, data_idx); |
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363 else |
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364 withclause{data_idx} = sprintf ("with %s linetype %d", |
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365 style, typ); |
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366 endif |
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367 parametric(i) = true; |
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368 if (! isempty (obj.zdata)) |
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369 nd = 3; |
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370 xdat = obj.xdata(:); |
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371 ydat = obj.ydata(:); |
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372 zdat = obj.zdata(:); |
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373 if (xautoscale) |
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374 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat); |
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375 endif |
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376 if (yautoscale) |
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377 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ydat); |
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378 endif |
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379 if (zautoscale) |
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380 [zmin, zmax, zminp] = get_data_limits (zmin, zmax, zminp, zdat); |
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381 endif |
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382 data{data_idx} = [xdat, ydat, zdat]'; |
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383 usingclause{data_idx} = "using ($1):($2):($3)"; |
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384 fputs (plot_stream, "set parametric;\n"); |
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385 fputs (plot_stream, "unset hidden3d;\n"); |
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386 fputs (plot_stream, "set style data lines;\n"); |
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387 fputs (plot_stream, "set surface;\n"); |
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388 fputs (plot_stream, "unset contour;\n"); |
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389 else |
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390 nd = 2; |
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391 xdat = obj.xdata(:); |
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392 ydat = obj.ydata(:); |
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393 ldat = obj.ldata; |
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394 yerr = xerr = false; |
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395 if (! isempty (ldat)) |
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396 yerr = true; |
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397 ldat = ldat(:); |
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398 endif |
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399 udat = obj.udata; |
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400 if (! isempty (udat)) |
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401 udat = udat(:); |
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402 endif |
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403 xldat = obj.xldata; |
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404 if (! isempty (xldat)) |
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405 xerr = true; |
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406 xldat = xldat(:); |
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407 endif |
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408 xudat = obj.xudata; |
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409 if (! isempty (xudat)) |
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410 xudat = xudat(:); |
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411 endif |
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412 if (yerr) |
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413 ylo = ydat-ldat; |
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414 yhi = ydat+udat; |
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415 if (yautoscale) |
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416 ty = [ydat; ylo; yhi]; |
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417 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ty); |
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6405
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418 endif |
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419 if (xerr) |
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420 xlo = xdat-xldat; |
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421 xhi = xdat+xudat; |
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422 if (xautoscale) |
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423 tx = [xdat; xlo; xhi]; |
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6453
|
424 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx); |
|
6405
|
425 endif |
|
|
426 data{data_idx} = [xdat, ydat, xlo, xhi, ylo, yhi]'; |
|
|
427 usingclause{data_idx} = "using ($1):($2):($3):($4):($5):($6)"; |
|
|
428 withclause{data_idx} = sprintf ("with xyerrorbars linestyle %d", |
|
|
429 data_idx); |
|
|
430 else |
|
|
431 if (xautoscale) |
|
6453
|
432 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, |
|
|
433 xminp, xdat, tx); |
|
6405
|
434 endif |
|
|
435 data{data_idx} = [xdat, ydat, ylo, yhi]'; |
|
|
436 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
437 withclause{data_idx} = sprintf ("with yerrorbars linestyle %d", |
|
|
438 data_idx); |
|
|
439 endif |
|
|
440 elseif (xerr) |
|
|
441 xlo = xdat-xldat; |
|
|
442 xhi = xdat+xudat; |
|
|
443 if (xautoscale) |
|
|
444 tx = [xdat; xlo; xhi]; |
|
6453
|
445 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx); |
|
6405
|
446 endif |
|
|
447 if (yautoscale) |
|
6453
|
448 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, |
|
|
449 yminp, ydat, ty); |
|
6405
|
450 endif |
|
|
451 data{data_idx} = [xdat, ydat, xlo, xhi]'; |
|
|
452 usingclause{data_idx} = "using ($1):($2):($3):($4)"; |
|
|
453 withclause{data_idx} = sprintf ("with xerrorbars linestyle %d", |
|
|
454 data_idx); |
|
|
455 else |
|
|
456 if (xautoscale) |
|
6453
|
457 [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat); |
|
6405
|
458 endif |
|
|
459 if (yautoscale) |
|
6453
|
460 [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ydat); |
|
6405
|
461 endif |
|
|
462 data{data_idx} = [xdat, ydat]'; |
|
|
463 usingclause{data_idx} = "using ($1):($2)"; |
|
|
464 endif |
|
|
465 endif |
|
|
466 |
|
|
467 case "surface" |
|
|
468 data_idx++; |
|
6425
|
469 [style, typ] = do_linestyle_command (obj, data_idx, plot_stream); |
|
6431
|
470 filespec{data_idx} = "-"; |
|
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 |
|
|
481 withclause{data_idx} = sprintf ("with %s linetype %d", |
|
|
482 style, typ); |
|
|
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; |
|
|
548 if (nd == 3) |
|
6436
|
549 fprintf (plot_stream, "set label \"%s\" at %g,%g,%g %s;\n", |
|
6405
|
550 undo_string_escapes (label), |
|
|
551 lpos(1), lpos(2), lpos(3), halign); |
|
|
552 else |
|
6436
|
553 fprintf (plot_stream, "set label \"%s\" at %g,%g %s;\n", |
|
6405
|
554 undo_string_escapes (label), |
|
|
555 lpos(1), lpos(2), halign); |
|
|
556 endif |
|
|
557 |
|
|
558 otherwise |
|
|
559 error ("__go_draw_axes__: unknown object class, %s", |
|
|
560 obj.type); |
|
|
561 endswitch |
|
|
562 |
|
|
563 endfor |
|
|
564 |
|
|
565 have_data = ! isempty (data); |
|
|
566 |
|
|
567 if (xautoscale && have_data) |
|
|
568 xlim = get_axis_limits (xmin, xmax, xminp, xlogscale); |
|
|
569 set (h, "xlim", xlim, "xlimmode", "auto"); |
|
|
570 else |
|
|
571 xlim = axis_obj.xlim; |
|
|
572 endif |
|
|
573 if (strcmp (axis_obj.xdir, "reverse")) |
|
|
574 xdir = "reverse"; |
|
|
575 else |
|
|
576 xdir = "noreverse"; |
|
|
577 endif |
|
|
578 fprintf (plot_stream, "set xrange [%g:%g] %s;\n", xlim, xdir); |
|
|
579 |
|
|
580 if (yautoscale && have_data) |
|
|
581 ylim = get_axis_limits (ymin, ymax, yminp, ylogscale); |
|
|
582 set (h, "ylim", ylim, "ylimmode", "auto"); |
|
|
583 else |
|
|
584 ylim = axis_obj.ylim; |
|
|
585 endif |
|
|
586 if (strcmp (axis_obj.ydir, "reverse")) |
|
|
587 ydir = "reverse"; |
|
|
588 else |
|
|
589 ydir = "noreverse"; |
|
|
590 endif |
|
|
591 fprintf (plot_stream, "set yrange [%g:%g] %s;\n", ylim, ydir); |
|
|
592 |
|
|
593 if (nd == 3) |
|
|
594 if (zautoscale && have_data) |
|
|
595 zlim = get_axis_limits (zmin, zmax, zminp, zlogscale); |
|
|
596 set (h, "zlim", zlim, "zlimmode", "auto"); |
|
|
597 else |
|
|
598 zlim = axis_obj.zlim; |
|
|
599 endif |
|
|
600 if (strcmp (axis_obj.zdir, "reverse")) |
|
|
601 zdir = "reverse"; |
|
|
602 else |
|
|
603 zdir = "noreverse"; |
|
|
604 endif |
|
|
605 fprintf (plot_stream, "set zrange [%g:%g] %s;\n", zlim, zdir); |
|
|
606 endif |
|
|
607 |
|
|
608 if (strcmp (axis_obj.box, "on")) |
|
|
609 if (nd == 3) |
|
|
610 fputs (plot_stream, "set border 4095;\n"); |
|
|
611 else |
|
|
612 fputs (plot_stream, "set border 431;\n"); |
|
|
613 endif |
|
|
614 else |
|
|
615 if (nd == 3) |
|
|
616 fputs (plot_stream, "set border 895;\n"); |
|
|
617 else |
|
|
618 fputs (plot_stream, "set border 3;\n"); |
|
|
619 fputs (plot_stream, "set xtics nomirror; set ytics nomirror;\n"); |
|
|
620 endif |
|
|
621 endif |
|
|
622 |
|
|
623 if (strcmp (axis_obj.key, "on")) |
|
|
624 if (strcmp (axis_obj.keybox, "on")) |
|
|
625 box = "box"; |
|
|
626 else |
|
|
627 box = "nobox"; |
|
|
628 endif |
|
|
629 inout = "inside"; |
|
|
630 switch (axis_obj.keypos) |
|
|
631 case -1 |
|
|
632 pos = "right bottom"; |
|
|
633 inout = "outside"; |
|
|
634 case 1 |
|
|
635 pos = "right top"; |
|
|
636 case 2 |
|
|
637 pos = "left top"; |
|
|
638 case 3 |
|
|
639 pos = "left bottom"; |
|
|
640 case 4 |
|
|
641 pos = "right bottom"; |
|
|
642 otherwise |
|
|
643 pos = ""; |
|
|
644 endswitch |
|
|
645 if (! have_newer_gnuplot) |
|
|
646 inout = ""; |
|
|
647 endif |
|
|
648 fprintf (plot_stream, "set key %s %s %s;\n", inout, pos, box); |
|
|
649 else |
|
|
650 fputs (plot_stream, "unset key;\n"); |
|
|
651 endif |
|
|
652 |
|
|
653 fputs (plot_stream, "set style data lines;\n"); |
|
|
654 |
|
|
655 if (! use_gnuplot_for_images) |
|
|
656 for i = 1:ximg_data_idx |
|
|
657 view_fcn (xlim, ylim, ximg_data{i}, view_zoom, view_cmd); |
|
|
658 endfor |
|
|
659 endif |
|
|
660 |
|
|
661 if (have_data) |
|
|
662 |
|
|
663 if (nd == 2) |
|
|
664 plot_cmd = "plot"; |
|
|
665 else |
|
|
666 plot_cmd = "splot"; |
|
|
667 rot_x = 90 - axis_obj.view(2); |
|
|
668 rot_z = axis_obj.view(1); |
|
|
669 while (rot_z < 0) |
|
|
670 rot_z += 360; |
|
|
671 endwhile |
|
|
672 fprintf (plot_stream, "set view %g, %g;\n", rot_x, rot_z); |
|
|
673 endif |
|
|
674 fprintf (plot_stream, "%s \"%s\" %s %s %s", plot_cmd, |
|
|
675 filespec{1}, usingclause{1}, titlespec{1}, withclause{1}); |
|
|
676 for i = 2:data_idx |
|
|
677 fprintf (plot_stream, ", \"%s\" %s %s %s", |
|
|
678 filespec{i}, usingclause{i}, titlespec{i}, withclause{i}); |
|
|
679 endfor |
|
|
680 fputs (plot_stream, ";\n"); |
|
|
681 for i = 1:data_idx |
|
|
682 if (strcmp (filespec{i}, "-")) |
|
|
683 if (nd == 2) |
|
|
684 fprintf (plot_stream, |
|
|
685 strcat (repmat ("%g ", 1, rows (data{i})), "\n"), |
|
|
686 data{i}); |
|
|
687 else |
|
|
688 if (parametric(i)) |
|
|
689 fprintf (plot_stream, "%g %g %g\n", data{i}); |
|
|
690 else |
|
|
691 tmp = data{i}; |
|
|
692 nc = columns (tmp); |
|
|
693 for j = 1:3:nc |
|
|
694 fprintf (plot_stream, "%g %g %g\n", tmp(:,j:j+2)'); |
|
|
695 fputs (plot_stream, "\n"); |
|
|
696 endfor |
|
|
697 endif |
|
|
698 endif |
|
|
699 fputs (plot_stream, "e\n"); |
|
|
700 endif |
|
|
701 endfor |
|
6431
|
702 else |
|
|
703 fputs (plot_stream, "plot \"-\";\nInf Inf\ne\n"); |
|
6405
|
704 endif |
|
|
705 |
|
|
706 fflush (plot_stream); |
|
|
707 |
|
|
708 else |
|
|
709 print_usage (); |
|
|
710 endif |
|
|
711 |
|
|
712 endfunction |
|
|
713 |
|
6453
|
714 function [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, xdat, tx) |
|
|
715 xdat = xdat(! isinf (xdat)); |
|
|
716 xmin = min (xmin, min (xdat)); |
|
|
717 xmax = max (xmax, max (xdat)); |
|
|
718 if (nargin == 5) |
|
|
719 tx = tx(! isinf (xdat) & tx > 0); |
|
|
720 xminp = min (xminp, min (tx)); |
|
|
721 else |
|
|
722 xminp = min (xminp, min (xdat(xdat>0))); |
|
|
723 endif |
|
|
724 endfunction |
|
|
725 |
|
6405
|
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 |
|
6425
|
767 function [style, typ] = do_linestyle_command (obj, idx, plot_stream) |
|
6405
|
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; |
|
6425
|
778 typ = NaN; |
|
6405
|
779 |
|
6425
|
780 if (isfield (obj, "color")) |
|
6405
|
781 color = obj.color; |
|
|
782 if (isnumeric (color)) |
|
6425
|
783 if (have_newer_gnuplot) |
|
|
784 fprintf (plot_stream, " linecolor rgb \"#%02x%02x%02x\"", |
|
|
785 round (255*color)); |
|
|
786 else |
|
|
787 if (isequal (color, [0,0,0])) |
|
|
788 typ = -1; |
|
|
789 elseif (isequal (color, [1,0,0])) |
|
|
790 typ = 1; |
|
|
791 elseif (isequal (color, [0,1,0])) |
|
|
792 typ = 2; |
|
|
793 elseif (isequal (color, [0,0,1])) |
|
|
794 typ = 3; |
|
|
795 elseif (isequal (color, [1,0,1])) |
|
|
796 typ = 4; |
|
|
797 elseif (isequal (color, [0,1,1])) |
|
|
798 typ = 5; |
|
|
799 elseif (isequal (color, [1,1,1])) |
|
|
800 typ = 6; |
|
|
801 elseif (isequal (color, [1,1,0])) |
|
|
802 typ = 7; |
|
|
803 else |
|
|
804 typ = 2; |
|
|
805 endif |
|
|
806 endif |
|
6405
|
807 endif |
|
|
808 found_style = true; |
|
|
809 endif |
|
|
810 |
|
|
811 if (isfield (obj, "linestyle")) |
|
|
812 switch (obj.linestyle) |
|
|
813 case "-" |
|
6415
|
814 lt = "1"; |
|
6405
|
815 case "--" |
|
6415
|
816 lt = "2"; |
|
6405
|
817 case ":" |
|
6415
|
818 lt = "3"; |
|
6405
|
819 case "-." |
|
6415
|
820 lt = "6"; |
|
6405
|
821 case "none" |
|
|
822 lt = ""; |
|
|
823 otherwise |
|
|
824 lt = ""; |
|
|
825 endswitch |
|
6415
|
826 if (! isempty (lt)) |
|
|
827 fprintf (plot_stream, " linetype %s", lt); |
|
|
828 found_style = true; |
|
|
829 endif |
|
6405
|
830 else |
|
|
831 lt = ""; |
|
|
832 endif |
|
|
833 |
|
|
834 if (isfield (obj, "linewidth")) |
|
|
835 fprintf (plot_stream, " linewidth %f", obj.linewidth); |
|
|
836 found_style = true; |
|
|
837 endif |
|
|
838 |
|
|
839 if (isfield (obj, "marker")) |
|
|
840 switch (obj.marker) |
|
|
841 case "+" |
|
|
842 pt = "1"; |
|
|
843 case "o" |
|
6413
|
844 pt = "6"; |
|
6405
|
845 case "*" |
|
|
846 pt = "3"; |
|
|
847 case "." |
|
6413
|
848 pt = "7"; |
|
6405
|
849 case "x" |
|
|
850 pt = "2"; |
|
|
851 case {"square", "s"} |
|
|
852 pt = "5"; |
|
|
853 case {"diamond", "d"} |
|
|
854 pt = "13"; |
|
|
855 case "^" |
|
|
856 pt = "9"; |
|
|
857 case "v" |
|
|
858 pt = "11"; |
|
|
859 case ">" |
|
|
860 pt = "8"; |
|
|
861 case "<" |
|
|
862 pt = "10"; |
|
|
863 case {"pentagram", "p"} |
|
|
864 pt = "4"; |
|
|
865 case {"hexagram", "h"} |
|
6413
|
866 pt = "12"; |
|
6405
|
867 case "none" |
|
|
868 pt = ""; |
|
|
869 otherwise |
|
|
870 pt = ""; |
|
|
871 endswitch |
|
|
872 if (! isempty (pt)) |
|
|
873 fprintf (plot_stream, " pointtype %s", pt); |
|
|
874 found_style = true; |
|
|
875 endif |
|
|
876 else |
|
|
877 pt = ""; |
|
|
878 endif |
|
|
879 |
|
|
880 if (isfield (obj, "markersize")) |
|
|
881 fprintf (plot_stream, " pointsize %f", obj.markersize); |
|
|
882 found_style = true; |
|
|
883 endif |
|
|
884 |
|
|
885 style = "lines"; |
|
|
886 if (isempty (lt)) |
|
|
887 if (! isempty (pt)) |
|
|
888 style = "points"; |
|
|
889 endif |
|
|
890 elseif (! isempty (pt)) |
|
|
891 style = "linespoints"; |
|
|
892 endif |
|
|
893 |
|
|
894 if (have_newer_gnuplot && ! found_style) |
|
|
895 fputs (plot_stream, " default"); |
|
|
896 endif |
|
|
897 |
|
|
898 fputs (plot_stream, ";\n"); |
|
|
899 |
|
|
900 endfunction |
