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<working on now>
List-Based Interface
Main Screen
The main screen shows a list of available channels and color codes them based on recent activity. Tapping a channel selects its detailed view (bottom right) which displays live graphs of any numeric quantities. Tapping a graph or number in a channel brings up the graph interface (below).
Graph screen
Graph interface fills the screen. Interaction is similar to a photograph which users are familiar with. Pinch or double-tap to zoom, drag to pan. A single tap anywhere freezes/unfreezes the graph (ie stops or starts live data being added.)
More traces can be added to the plot by pressing Menu and then selecting Add Trace. The Add Trace window appears (lower right) which allows the user to browse through available channels and variables in those channels. More than one new variable can be selected.
A control mode, accessible from the Menu button on the main screen allows the user to change parameters. Options are presented as spinners which update in real-time (send data on finger-up). An interface for selecting the resolution of the spinner is shown in the lower right.
Graph screen (cont.)
When graphing text, we display small colored bars at the bottom of the screen that change color when the text changes. While this does not convey what the text is, it conveys that it has changed, which may still be useful. We use a hashing strategy to display colors, so that the same text will always have the same color.
Control mode
A control mode, accessible from the Menu button on the main screen allows the user to change parameters. Options are presented as spinners which update in real-time (send data on finger-up). An interface for selecting the resolution of the spinner is shown in the lower right.