A Profile plot is used to display the variation of one or more scalar Data Sets associated with a mesh or grid along observation arcs in the Observation Coverage. Profile plots are created in the Plot Options dialog by setting the Plot Type to Observation Profile. When an arc is selected, two small arrows appear at either end of the arc. These arrows indicate the viewing direction for the plots. To change the viewing direction, select the arc and execute the "Feature Objects | Reverse Arc Direction" command. A sample plot is shown in the figure.
After the plot type is set in the Plot Options dialog, the Options button is clicked to open the Profile Plot Options dialog. This dialog contains the following:
Use active data set and time step. This option causes the plot to display the values of the active data set and time step for each arc being plotted. When the active data set changes, the plot is recomputed and updated.
Use selected data set. This option causes the plot to display the values of one or more specified data sets for each arc being plotted. Changing the active data set does not affect the plot. Double-click any data set in the list to change its displayed status.
Use time step. Because the plot shows only values from a specific time step, when the Use selected data set option is assigned, a time step should also be specified, but only for transient data sets.
Displayed Arcs. This button opens the Select From List dialog from which arcs can be turned on or off for each plot. This way, only certain arcs are plotted in each individual profile plot.
The Select From List dialog, when opened through the Profile Plot Options dialog, determines which observation arcs will be displayed in a Profile Plot in the Plot Window. Double-click any arc name to change its displayed status.