title: gnuplot: how to change fontsize of hypertext?
body: <p>So far, I couldn't find any documentation about how to change the fontsize of hypertext.</p>
  <p>From <code>help hypertext</code> which doesn't say anything about fontsize.</p>
  <blockquote>
  <pre><code>plot 'data' using 1:2:0 with labels hypertext point pt 7 \
  title 'mouse over point to see its order in data set'
  </code></pre>
  </blockquote>
  <p>And the following use of <code>font &quot;,30&quot;</code> does not have any effect:</p>
  <pre><code>plot 'data' using 1:2:0 with labels font &quot;,30&quot; hypertext point pt 7
  </code></pre>
  <p>Besides this, <code>help labels</code> lists the possibilty of the following syntax</p>
  <blockquote>
  <pre><code>sprintf(&quot;{/=30 %d}&quot;,$1**2)
  </code></pre>
  </blockquote>
  <p>But this and all the following tests don't lead to the desired result: labels and tics in standard size, but only hypertext in larger size.</p>
  <p>The last test results in large hypertext and small labels/tics but ugly proportions of the graph. Is there any solution to this?</p>
  <p><strong>Code:</strong></p>
  <pre><code>### hypertext font size
  
  # Test1: 
  reset session
  set title &quot;default terminal &quot;   # in my case wxt
  plot '+' u 1:($1**2):($1**2) w labels font &quot;,30&quot; hypertext point pt 7 ps 3 lc rgb &quot;red&quot; notitle
  pause -1
  
  # Test2: 
  reset session
  set term wxt font &quot;,10&quot;
  set title &quot;explicitely set wxt terminal&quot; font &quot;,10&quot;
  plot '+' u 1:($1**2):($1**2) w labels font &quot;,30&quot; hypertext point pt 7 ps 3 lc rgb &quot;red&quot; notitle
  pause -1
  
  # Test3: 
  reset session
  set title &quot;only labels without hypertext using {/=30 } syntax&quot;
  plot '+' u 1:($1**2):(sprintf(&quot;{/=30 %d}&quot;,$1**2)) w labels hypertext point pt 7 ps 3 lc rgb &quot;red&quot; notitle
  pause -1
  
  # Test4: 
  reset session
  set term wxt font &quot;,30&quot;
  set title &quot;setting terminal font to 30&quot;
  plot '+' u 1:($1**2):($1**2) w labels hypertext point pt 7 ps 3 lc rgb &quot;red&quot; notitle
  pause -1
  
  # Test5: 
  reset session
  set term wxt font &quot;,30&quot;
  set title &quot;setting terminal font to 30 and the labels to 10 again&quot; font &quot;,10&quot;
  set xlabel font &quot;,10&quot;
  set ylabel  font &quot;,10&quot;
  set xtics font &quot;,10&quot;
  set ytics font &quot;,10&quot;
  plot '+' u 1:($1**2):($1**2) w labels hypertext point pt 7 ps 3 lc rgb &quot;red&quot; notitle
  ### end of code
  </code></pre>