Getting Started

Data Markers

In addition to right-click menus, the Control System Toolbox provides plot data markers. These allow you to identify key data points on your plots. This figure, using the same plot as Figure 3-13, shows markers on the plots.

Figure 3-15: Using Plot Markers to Identify Data Points

You can move a data marker by:

• Grabbing the black square located at the corner of the marker
• Dragging the marker with your mouse

The time and amplitude values will change as you move the marker. This does not apply to markers that display plot characteristics (e.g., peak value or rise time). In the case of plot characteristic data markers, you can view them by placing your cursor over the dot that represents the active characteristic. To make the data marker persistent, left-click on the marker.

Note    Data markers do not apply to the SISO Design Tool, which displays data about plot characteristics in the status panel at the bottom of the SISO Design Tool window.

Right-Click Menus

Right-click on any data marker to open a property menu for the marker.

Property options for the marker include

• Alignment -- Change the position of the marker. Available options are top-right, top-left, bottom-right, and bottom-left.
• Font Size -- Change the font size.
• Movable -- By default, you can move data markers by clicking and dragging. Clearing Movable forces the marker to remain at a fixed data point.
• Delete -- Delete the selected marker. Alternatively, left-click anywhere in the empty plot region to delete all markers in the plot
• Interpolation -- By default, data markers linearly interpolate between points along the plotted curve. Select None to force the markers to snap to nearest points along the plotted curve.
• Track Mode -- The default is to track x- and y-values. You can choose to track only x- or y-values as well.

Since characteristic data markers are by definition fixed, the right-click menus for them have fewer options.

These options work the same as they do for the full right-click menu.

Plotting MIMO Model Responses

Plotting and Comparing Multiple Systems