Plot View

The plot view displays plots of a track's data. It has its own toolbar for selecting tracks, displaying multiple plots, and zooming in. The color of the plot markers is the same as that of the selected track. The data point associated with the current video frame or currently selected step is highlighted in the plot and its coordinates are displayed in the lower left corner.

1. Selecting a track

Select the track of interest from the dropdown list on the plot view's toolbar.

2. Multiple plots and synchronized x-axes

Click the Plots button and choose the number of plots desired. Multiple plots are stacked vertically.

Check the Sync checkbox to synchronize the horizontal axes of the plots so that they all share the same variable and scale. Unchecking this box enables the horizontal variables and scales to be set independently. Vertical variables and scales are always independent.

3. Setting plot axis variables

Move the mouse over an axis label until a box appears, then click on the box and choose the desired variable from the resulting popup list.

4. Setting the scale

All plots initially autoscale by default. To manually set a fixed minimum or maximum on either axis, move the mouse over the upper or lower end of the axis until a box appears, then click on the box and enter a value. Select the Auto checkbox to turn on autoscaling again. Note that each minimum or maximum can be independently set or autoscaled.

Additional scaling options are available by right-clicking the plot and choosing from the popup menu. The Scale... item displays a dialog where all four axis limits can be set. The Autoscale item autoscales all four axes so all data is visible.

4. Using the zoom tool

Click the zoom button on the toolbar (shortcut: press the Z key) to turn on the zoom tool. To zoom to a region of interest, drag the mouse to define its rectangular limits, or click the mouse to zoom in by 2x. Double-click the mouse to autoscale all four axes so all data is visible.

By default, the tool zooms in (mouse cursor and button display the zoom-in icon). Hold down the Alt key and click the mouse to zoom out by 2x (mouse cursor and button display the zoom-out icon).

Zoom button with zoom off, zoom-in and zoom-out icons

5. Hiding data point and lines

Right-click the plot and uncheck the appropriate box to hide the data points or connecting lines.

6. Defining new data columns with Data Builder

Right-click a plot and choose Define... to display a Data Builder with which you can define custom variables for plots and datatables.

Custom variables can be virtually any function of built-in and previously defined custom variables. For help using Data Builder, open Data Builder and click its Help button.

6. Analyzing data with Data Tool

Right-click a plot and choose Analyze... to open its data in the Data Tool for analysis.

The Data Tool provides statistical analysis including automatic and manual curve fitting of all or any selected subset of the data. For help using Data Tool, open Data Tool and click its Help button.