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-<head>
-<title>Sequence Feature Settings Dialog Box</title>
-</head>
-<body>
- <p>
- <strong>Sequence Feature Settings Dialog Box</strong>
- </p>
- <p>
- Select <strong>View→Feature Settings...</strong> menu entry in
- an alignment window to open the feature settings dialog box, which
- allows you to precisely control the presence and appearance of
- sequence features for the current alignment.
- </p>
- <center>
- <img src="featureSettings.gif" width="400" height="452"> <br>
- Sequence Feature Settings for the Jalview Application</img>
- </center>
- <p>
- The top section of the dialog box lists all the sequence feature
- groups, along with a tickbox for each that controls whether its
- features are displayed. The table in the middle lists all the
- features in the currently selected groups, along with their display
- style and whether they are currently being displayed (only the
- ticked features and groups are displayed). <strong><em>You
- can change the colour or shading style used for a feature in the
- associated alignment by clicking on its colour box.</em></strong>
- </p>
- <p>
- <a name="selectbyfeature"><strong><em>Selecting
- alignment columns by feature</em></strong></a><br> <strong>Double-clicking
- a feature type</strong> in the <strong>Feature Settings</strong> dialog
- allows you to select columns in the alignment that contain (or do
- not contain) features of that type. If a region of the alignment is
- currently selected, then only features in the current selection will
- be searched. The following keys affect the way in which selections
- are made:
- <ul>
- <li>Hold down <strong>Alt</strong> to select columns not
- containing features of a particular type.
- </li>
- <li>Hold down <strong>Shift</strong> to add columns to the
- current selection.
- </li>
- <li>Press <strong>Command/Windows key</strong> to toggle column
- selection state (XOR)
- </li>
- </ul>
- Options are also provided in the feature's pop-up menu (see below).
- <br />
- <em>Select columns by feature was added in Jalview 2.8.1</em>
- </p>
- <p>
- <strong><em>Feature settings pop-up menu</em></strong><br> <strong>Right-click</strong>
- on a feature to open a pop-up menu that allows you to
- <ul>
- <li>Hide, show and select columns containing that feature</li>
- <li>Sort the alignment or current selection using that feature
- type (see below)</li>
- <li>Toggle the type of colouring used for the feature</li>
- </ul>
- <p>
- Features may be highlighted with either a single colour or a <a
- href="featureschemes.html">feature colourscheme</a> based on
- either the scores associated with that feature or from the feature's
- description (e.g. to distinguish different names associated with a
- DOMAIN feature).
- </p>
- <p>
- <strong><a name="sortbyfeature">Ordering alignment by
- features</a></strong><br> The 'Seq Sort by Score' and 'Seq Sort by
- Density' buttons will sort the alignment based on the average score
- or total number of currently active features and groups on each
- sequence. To order the alignment using a specific feature type, use
- the <em>sort by ..</em> entries in the pop-up menu for that type.<br>
- <em>Feature sorting and graduated feature colouring were
- introduced in Jalview 2.5</em>
- </p>
-
- <p>
- <strong>Transparency and Feature Ordering</strong>
- </p>
- <p>It is important to realise that sequence features are often not
- distinct and often overlap (for example, a metal binding site
- feature may be attached to one position along a stretch of sequence
- marked with a secondary structure feature).</p>
- <p>
- The ordering of the sequence features in the dialog box list is the
- order used by Jalview for rendering sequence features. A feature at
- the bottom of the list is rendered <em>below</em> a feature higher
- up in the list.<br> <em><strong>You can change
- the order of a feature by dragging it up and down the list with
- the mouse (not applet)</strong></em>.
- </p>
- <p>
- The <strong><em>Optimise order</em></strong> button (currently only
- available in the application) will re-order the feature render
- ordering based on the average length of each feature type.
- </p>
- <p>
- The <strong><em>transparency slider setting</em></strong> controls
- the visibility of features rendered below other features. Reducing
- the transparency will mean that features at the top of the list can
- obscure features lower down, and increasing it allows the user to
- 'see through' the upper layers of a set of features.
- </p>
- <p>
- <strong><em>You can save all features, with their
- current colours and visibility in a Jalview format file. </em></strong>
- </p>
-</body>
-</html>
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