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SoundNotater (talk | contribs) →Common interactions: added link |
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{{Underlinked|date=August 2018}}
* '''[[Brushing and linking|Brushing]]''': works by using the [[Computer mouse|mouse]] to control a paintbrush, directly changing the color or glyph of elements of a plot. The paintbrush is sometimes a pointer and sometimes works by drawing an outline of sorts around points; the outline is sometimes irregularly shaped, like a lasso. Brushing is most commonly used when multiple plots are visible and some linking mechanism exists between the plots. There are several different conceptual models for brushing and a number of common linking mechanisms. Brushing [[scatterplots]] can be a transient operation, in which points in the active plot only retain their new characteristics while they are enclosed or intersected by the brush, or it can be a persistent operation, so that points retain their new appearance after the brush has been moved away. Transient brushing is usually chosen for linked brushing, as we have just described.
* '''Painting''': Persistent brushing is useful when we want to group the points into clusters and then proceed to use other operations, such as the tour, to compare the groups. It is becoming common terminology to call the persistent operation painting,
* '''Identification''': which could also be called labeling or label brushing,is another plot manipulation that can be linked. Bringing the cursor near a point or edge in a scatterplot, or a bar in a [[barchart]], causes a label to appear that identifies the plot element. It is widely available in many interactive graphics, and is sometimes called mouseover.
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