README
Data Visualizer Widgets
This directory contains widgets that are primarily data visualizers, such as charting widgets.
Interactivity
Some of these visualizers will be non-interactive, but it is perfectly
reasonable to have basic viewing interactivity, such as pan and zoom actions.
They are not intended to be used as inputs, so if your widget allows you to
edit the data being visualized, it probably belongs in Input/ instead.
Efficiency
Widgets here should be designed so that they are not constantly updating their full area if possible. For example, the SmokeChart widget keeps track of a "sweep line" where updates occur, moving the sweep line as needed and leaving other columns/rows unchanged. This is vastly more efficient than the common live charting style that updates in a fixed location (at one edge usually) and moves the entire chart each time new data arrives. As a pleasant side effect, this also makes an actively updating SmokeChart much more "visually quiet", and thus less distracting for the user.