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  6.     <title>6.4.¬† Measure</title>
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  13.     <link rel="up" href="gimp-tools-other.html" title="6.¬† Other" />
  14.     <link rel="prev" href="gimp-tool-zoom.html" title="6.3.¬† Magnify" />
  15.     <link rel="next" href="gimp-tool-text.html" title="6.5.¬†Text" />
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  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">6.4.¬†
  22.     <span lang="en" xml:lang="en">Measure</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="gimp-tool-zoom.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">6.¬†
  28.     <span lang="en" xml:lang="en">Other</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="gimp-tool-text.html"><img src="../images/next.png" alt="Next" /></a></td>
  31.         </tr>
  32.       </table>
  33.       <hr />
  34.     </div>
  35.     <div class="sect2" lang="en" xml:lang="en">
  36.       <div class="titlepage">
  37.         <div>
  38.           <div>
  39.             <h3 class="title"><a id="gimp-tool-measure"></a>6.4.¬†
  40.     <span lang="en" xml:lang="en">Measure</span>
  41.   </h3>
  42.           </div>
  43.           <div>
  44.             <div class="revhistory">
  45.               <table border="1" width="100%" summary="Revision history">
  46.                 <tr>
  47.                   <th align="left" valign="top" colspan="3">
  48.                     <b>Revision History</b>
  49.                   </th>
  50.                 </tr>
  51.                 <tr>
  52.                   <td align="left">Revision $Revision: 2429 $</td>
  53.                   <td align="left">2008-01-30</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2650339" class="indexterm"></a>
  62.       <a id="id2650352" class="indexterm"></a>
  63.       <a id="id2650361" class="indexterm"></a>
  64.       <a id="id2650370" class="indexterm"></a>
  65.       <a id="id2650379" class="indexterm"></a>
  66.       <div class="figure">
  67.         <a id="id2650388"></a>
  68.         <p class="title">
  69.           <b>Figure¬†13.151.¬†
  70.       <span lang="en" xml:lang="en">Measure tool</span>
  71.     </b>
  72.         </p>
  73.         <div class="figure-contents">
  74.           <div class="mediaobject">
  75.             <img src="../images/toolbox/toolbox-measure.png" alt="Measure tool" />
  76.           </div>
  77.         </div>
  78.       </div>
  79.       <br class="figure-break" />
  80.       <p>
  81.     The Measure Tool is used to gain knowledge about pixel distances in your
  82.     working image. By clicking and holding the mouse button, you can determine
  83.     the angle and number of pixels between the point of click and where the
  84.     mouse pointer is located. The information is displayed on the status bar
  85.     or can also be displayed in the Info Window.
  86.   </p>
  87.       <p>
  88.     When you pass the mouse pointer over the end point it turns to a move
  89.     pointer. Then if you click you can resume the measure.
  90.   </p>
  91.       <div class="sect3" lang="en" xml:lang="en">
  92.         <div class="titlepage">
  93.           <div>
  94.             <div>
  95.               <h4 class="title"><a id="id2650436"></a>6.4.1.¬†
  96.       <span lang="en" xml:lang="en">Status Bar</span>
  97.     </h4>
  98.             </div>
  99.           </div>
  100.         </div>
  101.         <p>
  102.       Information is displayed in the
  103.       <a class="link" href="gimp-image-window.html#gimp-image-window-status-bar">status bar</a>, at the
  104.       bottom of the Image window. The status bar shows a pair of
  105.       numbers. The first number is the <span class="emphasis"><em>distance between the
  106.       original point and the mouse pointer</em></span>. Mostly the measure
  107.       unit is shown as <span class="emphasis"><em>Pixel</em></span>. The second number is
  108.       the <span class="emphasis"><em>angle</em></span> in every quadrant, from 0¬∞ to 90¬∞.
  109.     </p>
  110.       </div>
  111.       <div class="sect3" lang="en" xml:lang="en">
  112.         <div class="titlepage">
  113.           <div>
  114.             <div>
  115.               <h4 class="title"><a id="id2650481"></a>6.4.2.¬†
  116.       <span lang="en" xml:lang="en">Activate the Tool</span>
  117.     </h4>
  118.             </div>
  119.           </div>
  120.         </div>
  121.         <div class="itemizedlist">
  122.           <ul type="disc">
  123.             <li>
  124.               <p>
  125.           You can get to the Measure Tool from the image-menu through:
  126.           <span class="guimenu"><span class="accel">T</span>ools</span> ‚Üí <span class="guimenuitem"><span class="accel">M</span>easure</span>,
  127.         </p>
  128.             </li>
  129.             <li>
  130.               <p>
  131.           or by clicking the tool icon:
  132.           <span class="guiicon">
  133.             <span class="inlinemediaobject"><img src="../images/toolbox/stock-tool-measure-22.png" /></span>
  134.           </span>
  135.           in Toolbox.
  136.         </p>
  137.             </li>
  138.           </ul>
  139.         </div>
  140.       </div>
  141.       <div class="sect3" lang="en" xml:lang="en">
  142.         <div class="titlepage">
  143.           <div>
  144.             <div>
  145.               <h4 class="title"><a id="id2650553"></a>6.4.3.¬†
  146.       <span lang="en" xml:lang="en">Key modifiers</span>
  147.     </h4>
  148.             </div>
  149.           </div>
  150.         </div>
  151.         <div class="variablelist">
  152.           <dl>
  153.             <dt>
  154.               <span class="term">
  155.           <span lang="en" xml:lang="en"><span class="keycap"><strong>Shift</strong></span></span>
  156.         </span>
  157.             </dt>
  158.             <dd>
  159.               <p>
  160.             Holding down the <span class="keycap"><strong>Shift</strong></span> allows to start a new
  161.             measure from the pointed point without deleting the previous
  162.             measure. Angle is measured from the previous line and not from
  163.             the default horizontal. The mouse pointer goes with a
  164.             ‚Äú<span class="quote">+</span>‚Äù sign. So, you can
  165.             <span class="emphasis"><em>measure any angle</em></span> on the image.
  166.           </p>
  167.             </dd>
  168.             <dt>
  169.               <span class="term">
  170.           <span lang="en" xml:lang="en"><span class="keycap"><strong>Ctrl</strong></span></span>
  171.         </span>
  172.             </dt>
  173.             <dd>
  174.               <p>
  175.             Holding down the <span class="keycap"><strong>Ctrl</strong></span> key puts the tool
  176.             into constrained straight line mode. The orientation of the
  177.             line is constrained to the nearest multiple of 15 degrees.
  178.           </p>
  179.               <p>
  180.             <span class="keycap"><strong>Ctrl</strong></span> key pressed and click on an end point
  181.             creates a horizontal guide. The mouse pointer goes with the
  182.             <span class="guiicon">
  183.               <span class="inlinemediaobject"><img src="../images/toolbox/measure-horiz.png" /></span>
  184.             </span>
  185.             icon.
  186.           </p>
  187.             </dd>
  188.             <dt>
  189.               <span class="term">
  190.           <span lang="en" xml:lang="en"><span class="keycap"><strong>Alt</strong></span></span>
  191.         </span>
  192.             </dt>
  193.             <dd>
  194.               <p>
  195.             <span class="keycap"><strong>Alt</strong></span> key and click on an end point creates a
  196.             vertical guide. The mouse pointer goes with the
  197.             <span class="guiicon">
  198.               <span class="inlinemediaobject"><img src="../images/toolbox/measure-vert.png" /></span>
  199.             </span>
  200.             icon.
  201.           </p>
  202.             </dd>
  203.             <dt>
  204.               <span class="term">
  205.           <span lang="en" xml:lang="en">
  206.             <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Alt</strong></span>
  207.           </span>
  208.         </span>
  209.             </dt>
  210.             <dd>
  211.               <p>
  212.             This key combination and click on a measure line allows to move
  213.             the measure.
  214.           </p>
  215.               <p>
  216.             <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Alt</strong></span>
  217.             key combination and click on an end point creates a vertical and a
  218.             horizontal guides.
  219.           </p>
  220.             </dd>
  221.           </dl>
  222.         </div>
  223.       </div>
  224.       <div class="sect3" lang="en" xml:lang="en">
  225.         <div class="titlepage">
  226.           <div>
  227.             <div>
  228.               <h4 class="title"><a id="id2650790"></a>6.4.4.¬†
  229.       <span lang="en" xml:lang="en">Options</span>
  230.     </h4>
  231.             </div>
  232.           </div>
  233.         </div>
  234.         <div class="figure">
  235.           <a id="id2650801"></a>
  236.           <p class="title">
  237.             <b>Figure¬†13.152.¬†
  238.         <span lang="en" xml:lang="en">‚Äú<span class="quote">Measure</span>‚Äù tool options</span>
  239.       </b>
  240.           </p>
  241.           <div class="figure-contents">
  242.             <div class="mediaobject">
  243.               <img src="../images/toolbox/measure-tool-options.png" alt="Measure tool options" />
  244.             </div>
  245.           </div>
  246.         </div>
  247.         <br class="figure-break" />
  248.         <div class="variablelist">
  249.           <dl>
  250.             <dt>
  251.               <span class="term">Overview</span>
  252.             </dt>
  253.             <dd>
  254.               <p>
  255.             There is only one available option for the Measure Tool.
  256.           </p>
  257.             </dd>
  258.             <dt>
  259.               <span class="term">Use Info Window</span>
  260.             </dt>
  261.             <dd>
  262.               <p>
  263.             This option will display an Info Window dialog that details the
  264.             measure tool results. The results are more complete on the status
  265.             bar.
  266.           </p>
  267.             </dd>
  268.           </dl>
  269.         </div>
  270.       </div>
  271.       <div class="sect3" lang="en" xml:lang="en">
  272.         <div class="titlepage">
  273.           <div>
  274.             <div>
  275.               <h4 class="title"><a id="id2650878"></a>6.4.5.¬†
  276.       <span lang="en" xml:lang="en">Measuring surfaces</span>
  277.     </h4>
  278.             </div>
  279.           </div>
  280.         </div>
  281.         <p>
  282.       You can't measure surfaces directly, but you can use the
  283.       <a class="link" href="gimp-histogram-dialog.html" title="2.5.¬† Histogram dialog">Histogram</a> that gives you
  284.       the number of pixels in a selection.
  285.     </p>
  286.       </div>
  287.     </div>
  288.     <div class="navfooter">
  289.       <hr />
  290.       <table width="100%" summary="Navigation footer">
  291.         <tr>
  292.           <td width="40%" align="left"><a accesskey="p" href="gimp-tool-zoom.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  293.           <td width="20%" align="center">
  294.             <a accesskey="u" href="gimp-tools-other.html">
  295.               <img src="../images/up.png" alt="Up" />
  296.             </a>
  297.           </td>
  298.           <td width="40%" align="right">¬†<a accesskey="n" href="gimp-tool-text.html"><img src="../images/next.png" alt="Next" /></a></td>
  299.         </tr>
  300.         <tr>
  301.           <td width="40%" align="left" valign="top"><a accesskey="p" href="gimp-tool-zoom.html">6.3.¬†
  302.     <span lang="en" xml:lang="en">Magnify</span>
  303.   </a>¬†</td>
  304.           <td width="20%" align="center">
  305.             <a accesskey="h" href="index.html">
  306.               <img src="../images/home.png" alt="Home" />
  307.             </a>
  308.           </td>
  309.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="gimp-tool-text.html">6.5.¬†Text</a></td>
  310.         </tr>
  311.       </table>
  312.     </div>
  313.   </body>
  314. </html>
  315.