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  6.     <title>4.8.¬† Perspective</title>
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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">4.8.¬†
  22.     <span lang="en" xml:lang="en">Perspective</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="gimp-tool-shear.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">4.¬†
  28.     <span lang="en" xml:lang="en">Transform Tools</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="gimp-tool-flip.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-perspective"></a>4.8.¬†
  40.     <span lang="en" xml:lang="en">Perspective</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">2008-01-13</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2642542" class="indexterm"></a>
  62.       <a id="id2642556" class="indexterm"></a>
  63.       <div class="figure">
  64.         <a id="id2642564"></a>
  65.         <p class="title">
  66.           <b>Figure¬†13.113.¬†
  67.       <span lang="en" xml:lang="en">Perspective tool</span>
  68.     </b>
  69.         </p>
  70.         <div class="figure-contents">
  71.           <div class="mediaobject">
  72.             <img src="../images/toolbox/toolbox-perspective.png" alt="Perspective tool" />
  73.           </div>
  74.         </div>
  75.       </div>
  76.       <br class="figure-break" />
  77.       <p>
  78.     The Perspective Tool is used to change the ‚Äú<span class="quote">perspective</span>‚Äù of
  79.     the active layer content, of a selection content or of a path. When you
  80.     click on the image, according to the Preview type you have selected, a
  81.     rectangular frame or a grid pops up around the selection (or around the
  82.     whole layer if there is no selection), with a handle on each of the four
  83.     corners. By moving these handles by click-and-drag, you can modify the
  84.     perspective. At the same time, a ‚Äú<span class="quote">Transformation
  85.     information</span>‚Äù pops up, which lets you valid the transformation. At
  86.     the center of the element, a circle lets you move the element by
  87.     click-and-drag.
  88.   </p>
  89.       <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  90.         <table border="0" summary="Note">
  91.           <tr>
  92.             <td rowspan="2" align="center" valign="top" width="25">
  93.               <img alt="[Note]" src="../images/note.png" />
  94.             </td>
  95.             <th align="left">Note</th>
  96.           </tr>
  97.           <tr>
  98.             <td align="left" valign="top">
  99.               <p>
  100.       This tool is not actually a perspective tool, as it doesn't impose
  101.       perspective rules. It is better described as a distort tool.
  102.     </p>
  103.             </td>
  104.           </tr>
  105.         </table>
  106.       </div>
  107.       <div class="sect3" lang="en" xml:lang="en">
  108.         <div class="titlepage">
  109.           <div>
  110.             <div>
  111.               <h4 class="title"><a id="id2642630"></a>4.8.1.¬†
  112.       <span lang="en" xml:lang="en">Activate the Tool</span>
  113.     </h4>
  114.             </div>
  115.           </div>
  116.         </div>
  117.         <p>
  118.       You can get to the Perspective tool in several ways :
  119.     </p>
  120.         <div class="itemizedlist">
  121.           <ul type="disc">
  122.             <li>
  123.               <p>
  124.           In the the image-menu through:
  125.           <span class="guimenuitem"><span class="accel">T</span>ools</span>/
  126.           <span class="guimenuitem"><span class="accel">T</span>ransform
  127.             Tools</span>/<span class="guimenuitem"><span class="accel">P</span>erspective
  128.           </span>,
  129.         </p>
  130.             </li>
  131.             <li>
  132.               <p>
  133.           By clicking the tool icon:
  134.           <span class="guiicon">
  135.             <span class="inlinemediaobject"><img src="../images/toolbox/stock-tool-perspective-22.png" /></span>
  136.           </span>
  137.           in Toolbox,
  138.         </p>
  139.             </li>
  140.             <li>
  141.               <p>
  142.           or by using the
  143.           <span class="keycap"><strong>Shift</strong></span>+<span class="keycap"><strong>P</strong></span> key
  144.           combination.
  145.         </p>
  146.             </li>
  147.           </ul>
  148.         </div>
  149.       </div>
  150.       <div class="sect3" lang="en" xml:lang="en">
  151.         <div class="titlepage">
  152.           <div>
  153.             <div>
  154.               <h4 class="title"><a id="id2642738"></a>4.8.2.¬†
  155.       <span lang="en" xml:lang="en">Options</span>
  156.     </h4>
  157.             </div>
  158.           </div>
  159.         </div>
  160.         <div class="figure">
  161.           <a id="id2642748"></a>
  162.           <p class="title">
  163.             <b>Figure¬†13.114.¬†
  164.         <span lang="en" xml:lang="en">
  165.           ‚Äú<span class="quote">Perspective</span>‚Äù tool options
  166.         </span>
  167.       </b>
  168.           </p>
  169.           <div class="figure-contents">
  170.             <div class="mediaobject">
  171.               <img src="../images/toolbox/tool-options-perspective.png" alt="Perspective tool options" />
  172.             </div>
  173.           </div>
  174.         </div>
  175.         <br class="figure-break" />
  176.         <div class="variablelist">
  177.           <dl>
  178.             <dt>
  179.               <span class="term">Overview</span>
  180.             </dt>
  181.             <dd>
  182.               <p>
  183.             The available tool options for the Perspective Tool can be
  184.             accessed by double clicking the Perspective Tool icon.
  185.             <span class="guiicon">
  186.               <span class="inlinemediaobject"><img src="../images/toolbox/stock-tool-perspective-22.png" /></span>
  187.             </span>
  188.           </p>
  189.             </dd>
  190.             <dt>
  191.               <span class="term">
  192.           Transform; Interpolation; Direction; Clipping; Preview
  193.         </span>
  194.             </dt>
  195.             <dd>
  196.               <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  197.                 <table border="0" summary="Note">
  198.                   <tr>
  199.                     <td rowspan="2" align="center" valign="top" width="25">
  200.                       <img alt="[Note]" src="../images/note.png" />
  201.                     </td>
  202.                     <th align="left">Note</th>
  203.                   </tr>
  204.                   <tr>
  205.                     <td align="left" valign="top">
  206.                       <p>
  207.     These options are described in <a class="link" href="gimp-tools-transform.html#gimp-tool-transform" title="4.1.¬† Common Features">Transform tools common options</a>.
  208.   </p>
  209.                     </td>
  210.                   </tr>
  211.                 </table>
  212.               </div>
  213.             </dd>
  214.           </dl>
  215.         </div>
  216.       </div>
  217.       <div class="sect3" lang="en" xml:lang="en">
  218.         <div class="titlepage">
  219.           <div>
  220.             <div>
  221.               <h4 class="title"><a id="id2642858"></a>4.8.3.¬†
  222.       <span lang="en" xml:lang="en">
  223.         The Information window for perspective transformation
  224.       </span>
  225.     </h4>
  226.             </div>
  227.           </div>
  228.         </div>
  229.         <div class="figure">
  230.           <a id="id2642872"></a>
  231.           <p class="title">
  232.             <b>Figure¬†13.115.¬†
  233.         <span lang="en" xml:lang="en">
  234.           The dialog window of the ‚Äú<span class="quote">Perspective</span>‚Äù tool
  235.         </span>
  236.       </b>
  237.           </p>
  238.           <div class="figure-contents">
  239.             <div class="mediaobject">
  240.               <img src="../images/toolbox/tool-dialog-perspective.png" alt="The dialog window of the Perspective tool" />
  241.             </div>
  242.           </div>
  243.         </div>
  244.         <br class="figure-break" />
  245.         <div class="variablelist">
  246.           <dl>
  247.             <dt>
  248.               <span class="term">Matrix</span>
  249.             </dt>
  250.             <dd>
  251.               <p>
  252.             You can get a small knowledge about matrices in the
  253.             <a class="xref" href="plug-in-convmatrix.html" title="6.2.¬† Convolution Matrix">Section¬†6.2, ‚Äú
  254.     <span lang="en" xml:lang="en">Convolution Matrix</span>
  255.   ‚Äù</a>.
  256.           </p>
  257.             </dd>
  258.           </dl>
  259.         </div>
  260.       </div>
  261.     </div>
  262.     <div class="navfooter">
  263.       <hr />
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  265.         <tr>
  266.           <td width="40%" align="left"><a accesskey="p" href="gimp-tool-shear.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  267.           <td width="20%" align="center">
  268.             <a accesskey="u" href="gimp-tools-transform.html">
  269.               <img src="../images/up.png" alt="Up" />
  270.             </a>
  271.           </td>
  272.           <td width="40%" align="right">¬†<a accesskey="n" href="gimp-tool-flip.html"><img src="../images/next.png" alt="Next" /></a></td>
  273.         </tr>
  274.         <tr>
  275.           <td width="40%" align="left" valign="top"><a accesskey="p" href="gimp-tool-shear.html">4.7.¬†
  276.     <span lang="en" xml:lang="en">Shear</span>
  277.   </a>¬†</td>
  278.           <td width="20%" align="center">
  279.             <a accesskey="h" href="index.html">
  280.               <img src="../images/home.png" alt="Home" />
  281.             </a>
  282.           </td>
  283.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="gimp-tool-flip.html">4.9.¬†
  284.     <span lang="en" xml:lang="en">Flip</span>
  285.   </a></td>
  286.         </tr>
  287.       </table>
  288.     </div>
  289.   </body>
  290. </html>
  291.