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- <th colspan="3" align="center">3.6. Other</th>
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- <tr>
- <td width="20%" align="left"><a accesskey="p" href="ch03s03s05s08.html">Prev</a> </td>
- <th width="60%" align="center">3. Tools</th>
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- <div class="sect2" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h3 class="title"><a id="id2958010"></a>3.6. Other</h3>
- </div>
- </div>
- <div></div>
- </div>
- <div class="sect3" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h4 class="title"><a id="gimp-tool-path"></a>3.6.1. Path Tool</h4>
- </div>
- </div>
- <div></div>
- </div>
- <a id="id2958029" class="indexterm"></a>
- <div class="mediaobject">
- <img src="../images/toolbox/toolbox-path.png" />
- </div>
- <p>
- Basically paths are a way to store bezier selections. Limiting paths to
- that statement misses a lot of their functionality, however. A better
- way to see it is as a way to manage vector curves. If you are familiar
- with vector drawing programs such as Adobe Illustrator and Corel Draw,
- then paths will be something very familiar. Work with paths just like
- you work with bezier curves. Bezier curves are, as a matter of fact,
- paths. You may just not be aware of the power that is hidden within
- them. The big difference is that you can edit your curve, you can paint
- with your curve, or even save, import, and export the curve.
- </p>
- <div class="simplesect" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h5 class="title"><a id="id2958072"></a>Activate Tool</h5>
- </div>
- </div>
- <div></div>
- </div>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- The Path Tool can be called in the following
- order, from the image-menu:
- <span class="guimenuitem"><span class="accel">T</span>ools</span>/
- <span class="guimenuitem"><span class="accel">P</span>aths</span>.
- </p>
- </li>
- <li>
- <p>
- The Tool can also be called by clicking the tool icon:
- <span class="guiicon">
- <img src="../images/toolbox/path.png" />
- </span>
- </p>
- </li>
- </ul>
- </div>
- </div>
- <div class="simplesect" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h5 class="title"><a id="id2958124"></a>Key modifiers (Defaults)</h5>
- </div>
- </div>
- <div></div>
- </div>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Shortcut</span>
- </dt>
- <dd>
- <p>
- Three modes are available to work with the Path tool:
- <span class="guilabel">Design</span>,<span class="guilabel">Edit</span> and <span class="guilabel">Move</span>.
- <span><b class="keycap">Ctrl</b></span> key toggles between Design and Edit.
- <span><b class="keycap">Shift</b></span> key has several functions depending on context. See Options for more
- details.
- </p>
- </dd>
- </dl>
- </div>
- </div>
- <div class="simplesect" lang="en" xml:lang="en">
- <div class="titlepage">
- <div></div>
- <div></div>
- </div>
- <div class="variablelist">
- <p class="title">
- <b>Options</b>
- </p>
- <dl>
- <dt>
- <span class="term">Overview</span>
- </dt>
- <dd>
- <p>
- The available tool options for the Path Tool can be accessed by
- double clicking the Path Tool icon.
- <span class="guiicon">
- <img src="../images/toolbox/path.png" />
- </span>
- </p>
- <p>
- As with other tools, you can delete your changes by <span><b class="keycap">Ctrl-Z</b></span>.
- </p>
- </dd>
- <dt>
- <span class="term">Design Mode</span>
- </dt>
- <dd>
- <p>
- By default, this tool is in <span class="guilabel">Design</span> mode. You draw the path by clicking
- successively. You can move control points by clicking on them and dragging them. Between control
- points are segments.
- </p>
- <p>
- </p>
- <div class="mediaobject">
- <img src="../images/tool-options/path-stroke.png" />
- <div class="caption">
- <p>
- Numbers are steps to draw a two segments straight path.
- </p>
- </div>
- </div>
- <p>
- </p>
- <p>
- </p>
- <div class="mediaobject">
- <img src="../images/tool-options/path-curve.png" />
- <div class="caption">
- <p>
- Curved segments are easily built by dragging a segment or a
- new node. Blue arrows indicate curve. Two little handles
- appear that you can drag to bend the curve.
- </p>
- </div>
- </div>
- <p>
- </p>
- <p>
- </p>
- <div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
- <table border="0" summary="Tip">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25">
- <img alt="[Tip]" src="../images/tip.png" />
- </td>
- <th align="left">Tip</th>
- </tr>
- <tr>
- <td colspan="2" align="left" valign="top">
- To quickly close the curve, press <span><b class="keycap">Ctrl</b></span> key and
- click on the initial control point. In previous versions,
- clicking inside a closed path converted it into Selection. Now,
- you have to use the Path dialog (Path to Selection button).
- </td>
- </tr>
- </table>
- </div>
- <p>
- </p>
- <p>
- </p>
- <div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
- <table border="0" summary="Tip">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25">
- <img alt="[Tip]" src="../images/tip.png" />
- </td>
- <th align="left">Tip</th>
- </tr>
- <tr>
- <td colspan="2" align="left" valign="top">
- When you have two handles, they work symmetrically by default.
- Release the pressure on the mouse button to move handles
- individually. The <span><b class="keycap">Shift</b></span> key will force the
- handles to be symmetrical again.
- </td>
- </tr>
- </table>
- </div>
- <p>
- </p>
- <p>
- Several functions are available with this mode:
- </p>
- <p>
- Add a new node: if the active node (a small empty circle after
- clicking on a node) is at the end of the path, the mouse pointer
- is a '+' sign and a new node is created, linked to the previous
- one by a segment. If the active node is on the path, the pointer
- is a square and you can create a new component to the path. This
- new component is independant from the other, but belongs to the
- path as you can see on the Path dialog. Pressing
- <span><b class="keycap">Shift</b></span> forces the creation of a new component.
- </p>
- <p>
- Move one or several nodes: On a node, the mouse pointer becomes a
- 4-arrows cross. You can click and drag it. Pressing
- <span><b class="keycap">Shift</b></span> allows to add or remove nodes to a group
- of nodes moved together.
- </p>
- <p>
- Modify handles: you have to Edit a node before. A handle appears.
- Drag it to bend the curve. Pressing <span><b class="keycap">Shift</b></span>
- toggles to symmetric handles.
- </p>
- <p>
- Modify segment: When you click on a segment, the mouse pointer
- turns to a 4-arrows cross. Drag it to bend the segment. As soon
- as you move, handles appear at both ends of the segment. Pressing
- <span><b class="keycap">Shift</b></span> key toggles to symmetric handles.
- </p>
- </dd>
- <dt>
- <span class="term">Edit Mode</span>
- </dt>
- <dd>
- <p>
- <span class="guilabel">Edit</span> performs functions which are not
- available in <span class="guilabel">Design</span> mode. With this mode,
- you can work only on the existing path. Outside, the pointer is
- like a no-entry sign (on the whole image if there is no path!)
- and you can do nothing.
- </p>
- <p>
- Add a segment between two nodes: Click on a node at one end of
- the path to activate it. Pointer is like a union symbol. Click on
- an other node to link both nodes. This is useful when you have to
- link unclosed components.
- </p>
- <p>
- Remove a segment from a path: While pressing
- <span><b class="keycap">Shift</b></span> key, point to a segment. Pointer turns to
- -. If you click then, segment is deleted.
- </p>
- <p>
- Add a node to a path: point to a segment. Pointer turns to +.
- Click where you want to place the new control point.
- </p>
- <p>
- Remove a node: Pressing <span><b class="keycap">Shift</b></span> key, point to a
- node. Pointer turns to -. Click to delete the node.
- </p>
- <p>
- Add a handle to a node: Point to a node. Pointer turns to small
- hand. Drag the node: handle appears. Pressing
- <span><b class="keycap">Shift</b></span> toggles to symmetric handles.
- </p>
- <p>
- Remove a handle from a node: Simply click on the handle (pointer
- is not a - this time).
- </p>
- <p>
- </p>
- <div class="caution" style="margin-left: 0.5in; margin-right: 0.5in;">
- <table border="0" summary="Caution">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25">
- <img alt="[Caution]" src="../images/caution.png" />
- </td>
- <th align="left">Caution</th>
- </tr>
- <tr>
- <td colspan="2" align="left" valign="top">
- Look out! No warning before removing a node, a segment or a
- handle.
- </td>
- </tr>
- </table>
- </div>
- <p>
- </p>
- </dd>
- <dt>
- <span class="term">Move Mode</span>
- </dt>
- <dd>
- <p> <span class="guilabel">Move</span> mode allows to move one or all
- components of a path. Simply click on the path and drag it.
- </p>
- <p> If you have several components, only the selected
- one is moved. If you click and drag outside the path, all
- components are moved. Pressing <span><b class="keycap">Shift</b></span> key toggles
- to move all components also. </p>
- </dd>
- <dt>
- <span class="term">Polygonal</span>
- </dt>
- <dd>
- <p>
- With this option, segments are linear only. Handles are not
- available and segments are not bent when moving them.
- </p>
- </dd>
- </dl>
- </div>
- </div>
- </div>
- </div>
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- <a accesskey="h" href="index.html">Home</a>
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- <td width="40%" align="right" valign="top"> 3.6.2. Color Picker Tool</td>
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