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  6.     <title>8.10.¬† Curve Bend</title>
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="filters-distort.html" title="8.¬† Distort Filters" />
  14.     <link rel="prev" href="plug-in-emboss.html" title="8.9.¬† Emboss" />
  15.     <link rel="next" href="plug-in-shift.html" title="8.11.¬† Shift" />
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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">8.10.¬†
  22.     <span lang="en" xml:lang="en">Curve Bend</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="plug-in-emboss.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">8.¬†
  28.     <span lang="en" xml:lang="en">Distort Filters</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="plug-in-shift.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="plug-in-curve-bend"></a>8.10.¬†
  40.     <span lang="en" xml:lang="en">Curve Bend</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: 2432 $</td>
  53.                   <td align="left">2006-12-04</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2752074" class="indexterm"></a>
  62.       <a id="id2752092" class="indexterm"></a>
  63.       <div class="sect3" lang="en" xml:lang="en">
  64.         <div class="titlepage">
  65.           <div>
  66.             <div>
  67.               <h4 class="title"><a id="id2752101"></a>8.10.1.¬†
  68.       <span lang="en" xml:lang="en">Overview</span>
  69.     </h4>
  70.             </div>
  71.           </div>
  72.         </div>
  73.         <div class="figure">
  74.           <a id="id2752112"></a>
  75.           <p class="title">
  76.             <b>Figure¬†16.127.¬†
  77.         <span lang="en" xml:lang="en">Applying example for the Curve Bend filter</span>
  78.       </b>
  79.           </p>
  80.           <div class="figure-contents">
  81.             <div class="mediaobject">
  82.               <img src="../images/filters/examples/taj_orig.jpg" alt="Applying example for the Curve Bend filter" />
  83.               <div class="caption">
  84.                 <p>Original image</p>
  85.               </div>
  86.             </div>
  87.             <div class="mediaobject">
  88.               <img src="../images/filters/examples/distort-taj-curve-bend.jpg" alt="Applying example for the Curve Bend filter" />
  89.               <div class="caption">
  90.                 <p>Filter ‚Äú<span class="quote">Curve Bend</span>‚Äù applied</p>
  91.               </div>
  92.             </div>
  93.           </div>
  94.         </div>
  95.         <br class="figure-break" />
  96.         <p>
  97.       You can find this filter through
  98.       <span class="guimenu">Filters</span> ‚Üí <span class="guisubmenu">Distorts</span> ‚Üí <span class="guimenuitem"><span class="accel">C</span>urve Bend</span>.
  99.     </p>
  100.         <p>
  101.       This filter allows you to create a curve that will be used to distort
  102.       the active layer or selection. The distortion is applied gradually
  103.       from an image or selection border to the other.
  104.     </p>
  105.       </div>
  106.       <div class="sect3" lang="en" xml:lang="en">
  107.         <div class="titlepage">
  108.           <div>
  109.             <div>
  110.               <h4 class="title"><a id="id2752222"></a>8.10.2.¬†
  111.       <span lang="en" xml:lang="en">Options</span>
  112.     </h4>
  113.             </div>
  114.           </div>
  115.         </div>
  116.         <div class="figure">
  117.           <a id="id2752232"></a>
  118.           <p class="title">
  119.             <b>Figure¬†16.128.¬†
  120.         <span lang="en" xml:lang="en">
  121.           ‚Äú<span class="quote">Curve bend</span>‚Äù filter options
  122.         </span>
  123.       </b>
  124.           </p>
  125.           <div class="figure-contents">
  126.             <div class="mediaobject">
  127.               <img src="../images/filters/filters-distort-curvebend.png" alt="Curve bend filter options" />
  128.             </div>
  129.           </div>
  130.         </div>
  131.         <br class="figure-break" />
  132.         <div class="variablelist">
  133.           <dl>
  134.             <dt>
  135.               <span class="term">Preview</span>
  136.             </dt>
  137.             <dd>
  138.               <p>
  139.             The preview displays changes to image or selection without
  140.             modifying the image until you press <span class="emphasis"><em>OK</em></span>.
  141.           </p>
  142.               <div class="variablelist">
  143.                 <dl>
  144.                   <dt>
  145.                     <span class="term">Preview Once</span>
  146.                   </dt>
  147.                   <dd>
  148.                     <p>
  149.                   This button allows you to update the preview each time you
  150.                   need it.
  151.                 </p>
  152.                   </dd>
  153.                   <dt>
  154.                     <span class="term">Automatic Preview</span>
  155.                   </dt>
  156.                   <dd>
  157.                     <p>
  158.                   With this option, preview is changed in real time. This
  159.                   needs much calculation and may lengthen work. It is
  160.                   particularly evident when using "Rotation".
  161.                 </p>
  162.                   </dd>
  163.                 </dl>
  164.               </div>
  165.             </dd>
  166.             <dt>
  167.               <span class="term">Options</span>
  168.             </dt>
  169.             <dd>
  170.               <div class="variablelist">
  171.                 <dl>
  172.                   <dt>
  173.                     <span class="term">Rotate</span>
  174.                   </dt>
  175.                   <dd>
  176.                     <p>
  177.                   There, you can set the application angle of filter (0-360
  178.                   counter-clockwise). 0 is default setting: The curve will be
  179.                   applied from the upper border and/or from the lower. Set to
  180.                   90, it will be applied from left border and/or from the
  181.                   right  one.
  182.                 </p>
  183.                   </dd>
  184.                   <dt>
  185.                     <span class="term">Smoothing and Antialiasing</span>
  186.                   </dt>
  187.                   <dd>
  188.                     <p>
  189.                   The distort process may create hard and stepped borders.
  190.                   These two options improve this aspect.
  191.                 </p>
  192.                   </dd>
  193.                   <dt>
  194.                     <span class="term">Work on Copy</span>
  195.                   </dt>
  196.                   <dd>
  197.                     <p>
  198.                   This option creates a new layer called
  199.                   ‚Äú<span class="quote">Curve_bend_dummy_layer_b</span>‚Äù which becomes the
  200.                   active layer, allowing you to see changes to your
  201.                   image in normal size without modifying the original image
  202.                   until you press the <span class="guibutton">OK</span> button.
  203.                 </p>
  204.                   </dd>
  205.                 </dl>
  206.               </div>
  207.             </dd>
  208.             <dt>
  209.               <span class="term">Modify Curve</span>
  210.             </dt>
  211.             <dd>
  212.               <p>
  213.             In this grid, you have a marked horizontal line, with a node at
  214.             both ends, which represents by default the upper border of image.
  215.             If you click on this curve, a new node appears, that you can drag
  216.             to modify the curve as you want. You can create several nodes on
  217.             the curve.
  218.           </p>
  219.               <p>
  220.             You can have only two curves on the grid, one for the so named
  221.             "upper" border and the other for the so named "lower" border. You
  222.             can activate one of them by checking the
  223.             <span class="emphasis"><em>Upper</em></span> or <span class="emphasis"><em>Lower</em></span> radio
  224.             button.
  225.           </p>
  226.               <p>
  227.             If you use the <span class="emphasis"><em>Curve Type Free</em></span> option, the
  228.             curve you draw will replace the active curve.
  229.           </p>
  230.             </dd>
  231.             <dt>
  232.               <span class="term">Curve for Border</span>
  233.             </dt>
  234.             <dd>
  235.               <p>
  236.             There you can select whether the active curve must be applied to
  237.             the <span class="emphasis"><em>Superior (or left)</em></span> or the
  238.             <span class="emphasis"><em>Inferior (or right)</em></span> border, according to the
  239.             rotation.
  240.           </p>
  241.             </dd>
  242.             <dt>
  243.               <span class="term">Curve Type</span>
  244.             </dt>
  245.             <dd>
  246.               <p>
  247.             With the <span class="emphasis"><em>Smooth</em></span>, you get automatically a well
  248.             rounded curve when you drag a node.
  249.           </p>
  250.               <p>
  251.             The <span class="emphasis"><em>Free</em></span> option allows you to draw a curve
  252.             freely. It will replace the active curve.
  253.           </p>
  254.             </dd>
  255.             <dt>
  256.               <span class="term">Buttons</span>
  257.             </dt>
  258.             <dd>
  259.               <div class="variablelist">
  260.                 <dl>
  261.                   <dt>
  262.                     <span class="term">Copy</span>
  263.                   </dt>
  264.                   <dd>
  265.                     <p>
  266.                   Copy the active curve to the other border.
  267.                 </p>
  268.                   </dd>
  269.                   <dt>
  270.                     <span class="term">Mirror</span>
  271.                   </dt>
  272.                   <dd>
  273.                     <p>
  274.                    Mirror the active curve to the other border.
  275.                 </p>
  276.                   </dd>
  277.                   <dt>
  278.                     <span class="term">Swap</span>
  279.                   </dt>
  280.                   <dd>
  281.                     <p>
  282.                   Swap the ‚Äú<span class="quote">superior</span>‚Äù and
  283.                   ‚Äú<span class="quote">inferior</span>‚Äù curves.
  284.                 </p>
  285.                   </dd>
  286.                   <dt>
  287.                     <span class="term">Reset</span>
  288.                   </dt>
  289.                   <dd>
  290.                     <p>
  291.                   Reset the active curve.
  292.                 </p>
  293.                   </dd>
  294.                   <dt>
  295.                     <span class="term">Open</span>
  296.                   </dt>
  297.                   <dd>
  298.                     <p>
  299.                   Load the curve from a file.
  300.                 </p>
  301.                   </dd>
  302.                   <dt>
  303.                     <span class="term">Save</span>
  304.                   </dt>
  305.                   <dd>
  306.                     <p>
  307.                   Save the curve to a file.
  308.                 </p>
  309.                   </dd>
  310.                 </dl>
  311.               </div>
  312.             </dd>
  313.           </dl>
  314.         </div>
  315.       </div>
  316.     </div>
  317.     <div class="navfooter">
  318.       <hr />
  319.       <table width="100%" summary="Navigation footer">
  320.         <tr>
  321.           <td width="40%" align="left"><a accesskey="p" href="plug-in-emboss.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  322.           <td width="20%" align="center">
  323.             <a accesskey="u" href="filters-distort.html">
  324.               <img src="../images/up.png" alt="Up" />
  325.             </a>
  326.           </td>
  327.           <td width="40%" align="right">¬†<a accesskey="n" href="plug-in-shift.html"><img src="../images/next.png" alt="Next" /></a></td>
  328.         </tr>
  329.         <tr>
  330.           <td width="40%" align="left" valign="top"><a accesskey="p" href="plug-in-emboss.html">8.9.¬†
  331.     <span lang="en" xml:lang="en">Emboss</span>
  332.   </a>¬†</td>
  333.           <td width="20%" align="center">
  334.             <a accesskey="h" href="index.html">
  335.               <img src="../images/home.png" alt="Home" />
  336.             </a>
  337.           </td>
  338.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="plug-in-shift.html">8.11.¬†
  339.     <span lang="en" xml:lang="en">Shift</span>
  340.   </a></td>
  341.         </tr>
  342.       </table>
  343.     </div>
  344.   </body>
  345. </html>
  346.