Plotting Derived Field Quantities

Derived field quantities are field quantity representations that have been deduced from the original field solution using the Fields Calculator.

1. Select a point, line, surface, or object to create the plot on or within. You may also select a plane or object list in the history tree. If it does not exist, create it.
Note: For 2D Designs, a plane selection must be consistent with the drawing plane or an error will result.
2. Click Maxwell 3D or Maxwell 2D and select Fields > Fields > Named Expression.

The Selecting calculated expression dialog box appears.

3. Select the derived quantity you want to plot, and then click OK.

The Create Field Plot dialog box appears.

4. To specify a name for the plot other than the default, select SpecifyName, and then type a new name in the Name box.
5. To specify a folder other than the default in which to store the plot, select Specify Folder, and then click a folder in the drop-down menu. Plot folders are listed under Field Overlays in the project tree.
6. Select the solution to plot from the Solution drop-down menu.
7. Select the derived field quantity to plot from the Quantity list.
   Note: If you select a point for the Geometry and a Category that is a named expression based on the point (or other scalar, non-3D value), then the Quantity list only lists expressions that returns a single scalar value. If you have added named expressions that take the magnitude of the ScalarX(), ScalarY(), or ScalarZ() of a vector point value, then you can create output variables for those expressions only in this case.

   If you select a polyline for the Geometry and a Category that is a named expression based on the line, then the Quantity list only lists corresponding expressions (i.e., will not list scalar values when a line is selected as the geometry).

8. Select the volume or surface (region) in which to plot the field from the In Volume list.

This selection enables you to limit plots to the intersection of a volume and the selected object.

9. Click Done.

The derived field quantity you created in the Fields Calculator is plotted on the surfaces or objects you selected. The new plot is listed in the project tree under Field Overlays.