4 <title>Sequence feature colour schemes</title>
8 <p><strong>Sequence feature colour schemes</strong></p>
9 <p>Jalview can visualize annotation present on parts of a sequence by
10 overlaying colours according to the annotation present at each position.
11 It allows features to be colored either according to type, or for a
12 particular type, according to an individual feature's associated label
13 or score. The <a href="featuresettings.html">Feature Settings dialog
14 box</a> controls the order and display of each sequence annotation type, and
15 also allows the colour scheme used for the the feature to be changed <em>via</em>
16 the 'Graduated Colour' option in the sequence feature pop-up menu
17 (obtained by right-clicking on a sequence feature).</p>
19 <center><img src="featurecoloursettings.gif"><br/>Graduated
20 feature colour scheme settings dialog box</img></center>
21 <p>The Graduated Feature Colour dialog box has the following
24 <li><em>Colour by Label</em> - when checked this derives a colour
25 for each feature based on the label text.</li>
26 <li><em>Min and Max Color boxes</em> - Click on these boxes to set
27 the minimum and maximum colours used to shade features by their
28 associated score.</li>
29 <li><em>Threshold type combo box</em> - Allows features to be
30 hidden features if their score is below or above a given threshold.<br />
31 <em>Set the threshold using the slider or type it in to the text
32 box. The threshold cannot be set outside the available range of feature
35 <li><em>Threshold is Min/Max</em> - When checked, the threshold
36 will be used as the upper or lower limit when shading the features
37 according to their score using the Min and Max colour.</li>
40 <p><strong>Icon styles for graduated feature styles</strong><br/>
41 <p>When a graduated colourscheme is applied to a feature, it is indicated in the feature settings or amend feature dialog box by the following types of icon:<br/>
42 <center><table width="50%" border="1">
43 <tr><td><strong>Type of Colouring</strong></td><td><strong>Icon</strong></td></tr>
44 <tr><td><em>Graduated colour by Feature Score</em></td><td><img src="fcsminmax.gif"/></td></tr>
45 <tr><td><em>Graduated colour thresholded (less than) by feature Score</em></td><td><img src="fcsltthan.gif"/></td></tr>
46 <tr><td><em>Graduated colour thresholded (greater than) by feature Score</em></td><td><img src="fcsgtthan.gif"/></td></tr>
47 <tr><td><em>Colour by Feature Label (may also be thresholded)</em></td><td><img src="fcsntlabel.gif"/></td></tr>
49 <td align="center" colspan="2">
51 <strong>The current threshold is given in the
52 icon's tooltip.</strong>
54 </td></tr></table></center></p>
55 <em>Graduated feature colours were introduced in Jalview 2.5</em>