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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>3.6.┬áColormap Rotation</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
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  11.     <link rel="up" href="ch05s03.html" title="3.┬áColor filters" />
  12.     <link rel="previous" href="ch05s03s05.html" title="3.5.┬áTwo Colors Exchange" />
  13.     <link rel="next" href="ch05s03s07.html" title="3.7.┬áMap Color Range" />
  14.   </head>
  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">3.6.┬áColormap Rotation</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch05s03s05.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">3.┬áColor filters</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch05s03s07.html">Next</a></td>
  25.         </tr>
  26.       </table>
  27.       <hr />
  28.     </div>
  29.     <div class="sect2" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h3 class="title"><a id="plug-in-rotate-colormap"></a>3.6.┬áColormap Rotation</h3>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <a id="id2970583" class="indexterm"></a>
  39.       <div class="mediaobject">
  40.         <img src="../images/filters/filters-colormap-rotation.png" />
  41.       </div>
  42.       <div class="simplesect" lang="en" xml:lang="en">
  43.         <div class="titlepage">
  44.           <div>
  45.             <div>
  46.               <h4 class="title"><a id="id2970615"></a>Overview</h4>
  47.             </div>
  48.           </div>
  49.           <div></div>
  50.         </div>
  51.         <p>
  52.       This filter is found in 
  53.       <span class="guimenuitem">Image>Filters/Colors/Map/Colormap <span class="accel">R</span>otation</span>
  54.     </p>
  55.         <p>
  56.       Colormap Rotation lets you exchange one color range to another range.
  57.     </p>
  58.       </div>
  59.       <div class="simplesect" lang="en" xml:lang="en">
  60.         <div class="titlepage">
  61.           <div>
  62.             <div>
  63.               <h4 class="title"><a id="id2970645"></a>Preview</h4>
  64.             </div>
  65.           </div>
  66.           <div></div>
  67.         </div>
  68.         <div class="variablelist">
  69.           <dl>
  70.             <dt>
  71.               <span class="term">Preview</span>
  72.             </dt>
  73.             <dd>
  74.               <p>
  75.             <span class="guilabel">Preview</span>: This Preview displays a thumbnail of the original image and 
  76.             another one displaying color changes interactively, before they are applied to Image.
  77.           </p>
  78.             </dd>
  79.           </dl>
  80.         </div>
  81.       </div>
  82.       <div class="simplesect" lang="en" xml:lang="en">
  83.         <div class="titlepage">
  84.           <div>
  85.             <div>
  86.               <h4 class="title"><a id="id2970675"></a>Main</h4>
  87.             </div>
  88.           </div>
  89.           <div></div>
  90.         </div>
  91.         <p>
  92.       This tab deals with main options.
  93.     </p>
  94.         <div class="variablelist">
  95.           <dl>
  96.             <dt>
  97.               <span class="term">From</span>
  98.             </dt>
  99.             <dd>
  100.               <p>
  101.               The <span class="guilabel">Color Circle</span>: Two axis to define "From" range. The curved arrow in 
  102.               angle lets to recognise "From" axis and "To" axis of range. Click-drag these axis to change 
  103.               range.
  104.             </p>
  105.               <p>
  106.               <span class="guilabel">Switch to Clockwise/Counterclockwise</span>: Sets the direction the range is 
  107.               going.
  108.             </p>
  109.               <p>
  110.               <span class="guilabel">Change Order of Arrows</span>: Inverts From and To axis. This results in an 
  111.               important color change as colors in selection angle are different.
  112.             </p>
  113.               <p>
  114.               <span class="guilabel">Select All</span> selects the whole color circle.
  115.             </p>
  116.               <p>
  117.               <span class="guilabel">From</span> and <span class="guilabel">To</span> boxes display start axis and end axis 
  118.               positions (in rad/PI) which are limiting the selected color range. You can enter these 
  119.               positions manually or with help of arrow-heads.
  120.             </p>
  121.             </dd>
  122.             <dt>
  123.               <span class="term">To</span>
  124.             </dt>
  125.             <dd>
  126.               <p>
  127.             This section options are the same as "From" section ones.
  128.           </p>
  129.             </dd>
  130.           </dl>
  131.         </div>
  132.       </div>
  133.       <div class="simplesect" lang="en" xml:lang="en">
  134.         <div class="titlepage">
  135.           <div>
  136.             <div>
  137.               <h4 class="title"><a id="id2970779"></a>Misc</h4>
  138.             </div>
  139.           </div>
  140.           <div></div>
  141.         </div>
  142.         <p>
  143.       This tab deals with miscellaneous options.
  144.     </p>
  145.         <div class="variablelist">
  146.           <dl>
  147.             <dt>
  148.               <span class="term">Gray</span>
  149.             </dt>
  150.             <dd>
  151.               <p>
  152.             In the "Misc" tab, you can specify how to treat grey colors. By default, grey is not 
  153.             considered as a color. But all colors, when they are very desaturated, look like grey, and 
  154.             you can tell filter to consider grey as a very desaturated color which will be affected by 
  155.             rotation. 
  156.           </p>
  157.               <p>
  158.               <span class="guilabel">What is Gray?</span>: You specify there how much saturation will be considered 
  159.               grey. By increasing progressively saturation, you will see an enlarging circle in color 
  160.               circle and enlarging selected areas in Preview if Change To This option is checked.
  161.             </p>
  162.               <p>
  163.               <span class="guilabel">Hue</span> and <span class="guilabel">Saturation</span>: You set there the color you 
  164.               want grey to be transformed to. You do that, either by entering values into input boxes, or 
  165.               by click-dragging the small central circle in Hue/Saturation circle.
  166.             </p>
  167.               <p>
  168.               <span class="guilabel">Mode</span>: With <span class="guilabel">Treat as this</span> option, there will be no 
  169.               change in preview, selected "grey" areas will take the selected color and a rotation will 
  170.               be performed on image. With <span class="guilabel">Change to this</span> option, the selected color 
  171.               will be applied to "grey" areas and will appear in preview but no rotation will be performed.
  172.             </p>
  173.             </dd>
  174.             <dt>
  175.               <span class="term">Preview</span>
  176.             </dt>
  177.             <dd>
  178.               <p> 
  179.             <span class="guilabel">Continuous Update</span> displays color changes continuously in Rotated 
  180.             preview.
  181.           </p>
  182.               <p>
  183.             <span class="guilabel">Zone</span>: <span class="guilabel">Entire Layer</span> works on whole layer. 
  184.             <span class="guilabel">S├⌐lection</span> displays selection only, <span class="guilabel">Context</span> displays 
  185.             selection in image context.
  186.           </p>
  187.             </dd>
  188.             <dt>
  189.               <span class="term">Units</span>
  190.             </dt>
  191.             <dd>
  192.           You can select there angle unit used to locate colors in Hue/Saturation circle.
  193.         </dd>
  194.           </dl>
  195.         </div>
  196.       </div>
  197.     </div>
  198.     <div class="navfooter">
  199.       <hr />
  200.       <table width="100%" summary="Navigation footer">
  201.         <tr>
  202.           <td width="40%" align="left"><a accesskey="p" href="ch05s03s05.html">Prev</a>┬á</td>
  203.           <td width="20%" align="center">
  204.             <a accesskey="u" href="ch05s03.html">Up</a>
  205.           </td>
  206.           <td width="40%" align="right">┬á<a accesskey="n" href="ch05s03s07.html">Next</a></td>
  207.         </tr>
  208.         <tr>
  209.           <td width="40%" align="left" valign="top">3.5.┬áTwo Colors Exchange┬á</td>
  210.           <td width="20%" align="center">
  211.             <a accesskey="h" href="index.html">Home</a>
  212.           </td>
  213.           <td width="40%" align="right" valign="top">┬á3.7.┬áMap Color Range</td>
  214.         </tr>
  215.       </table>
  216.     </div>
  217.   </body>
  218. </html>
  219.