Creating Polar Plots
A polar plot is a 2D circular chart divided by the spherical coordinates R and theta, where R is the radius, or distance from the origin, and theta is the angle from the X-axis. Follow this general procedure to draw a polar graph of results:
- Select Twin Builder > Results > Create Standard Report > Polar plot. The Report dialog box appears.
- In the Context section, make selections
from the following field or fields, depending on the design and solution
type.
- Solution – Lists the available solutions, whether sweeps or adaptive passes.
- Domain – Whether this field appears, and the domains listed depend on the Solution type and the <type> selected. The domain can be Sweep, Spectral, or Time.
When Spectral is selected, additional fields display in which you can make settings for Plotting Spectral Domain Data.
- Optimetrics setup – All defined Optimetrics analysis setups.
- Select Quantities – Click to open the Select Quantities dialog box in which you can select additional quantities for plotting.
- On the Trace tab, Polar area, specify the
information to plot:
- Category – Select the type of information to plot.
- Quantity – Select the values to plot. Use Ctrl-click to make multiple selections.
- Function – Select the mathematical function to apply to the quantity for the plot.
- Value – Displays the currently
specified quantity and function. You can edit this field directly.
Note:
The text color shows whether the expression is valid (blue for valid expressions, red for invalid).
- Range – Click to open the Set Range Function dialog box. This applies to the currently specified quantity and function.
- On the PrimarySweep line, select the sweep variable from the drop-down list and the values against which to plot the polar component.
- Click New Report.
This creates a new report in the Project tree, displays the report with the defined trace, and enables the Add Trace button in the Report dialog box. The default name is based on the report category you selected (for example, S Parameter Plot n or rE Plot n). You can edit the plot names in the Project tree and the plot header text in the report synchronizes.
The function of the selected quantity is plotted against the swept variable values or quantities you specified on an x-y graph. The plot appears under Results in the Project tree and the traces appear under the plot. When you move the mouse close to a trace, the quantity name of that trace displays in a box next to the cursor. When you hover the mouse over a trace listed in the Curve Info box, the corresponding trace changes color. When you select the traces or plots, their properties display in the Properties dialog box. You can edit these properties to modify the plot.
- Optionally, add another trace to the plot by following the procedure above, using Add Trace rather than New Report.