GTD-PO 6.2.10

12.2. Field

Using this menu it is possible to analyze the amplitude of the field through the observation directions previously defined in the Output section.

The following options are available:

  • View Cuts: display a plot that relates the amplitude against a Theta cut or a Phi cut.
  • View Cuts by Frequency: displays a plot that relates the amplitude against a frequency sweep.
  • View Cuts by Step: displays a plot that relates the amplitude against a parametric step.
  • View Text Files: displays the numeric results obtained in the simulation process.

12.2.1. View Cuts

This command plots the amplitude of the fields computed for each angular cut of the simulation geometry. Several frequencies can be plotted in the same graphic. To plot a graph, the user can select the field component and the frequency. A new graph will be plotted with the button 'Add Series'. In the case that the user has set up a parametrized geometry (see the Geometry User Guide for details), it is possible to select the step to visualize the results for.

It is also possible to delete a series that is selected by the user from the list with the 'Remove Series'. The display option also allows changing the color of the series and display points. The buttons 'Import Series' and 'Export Series' are used for importing and exporting the selected series in 'List of Series' to a data file written as a text file.

This panel displays a plot with the results and several options for adding and removing extra series from the plot.

When initially open, the panel will display a default series in the plot that will represent the measurements for a particular component, step, and observation point in a phi or theta cut, against every possible frequency that has been simulated. More series can be added, by selecting the component, step and spherical coordinates in the control panel that appears left side to the plot.

  • Component: the plane wave component to inspect. Select one of the possible values: VV, HV, VTotal, HH, VH, HTotal
  • Step: the parametric step to select. These should have been defined prior to the calculation when designing the simulation.
  • Frequency: select a particular frequency.

View cuts linear window

The user can also draw a polar plot with the same options used in the previous window.

View cuts polar window

12.2.2. View Cuts by Frequency

This kind of plot can be used to compare the amplitude measurements made by the simulation process for a particular component, step, cut and point in the sweep, against a simulation frequency. This option is useful when the user has selected a frequency sweep in the Simulation Settings, in order to inspect how the measurements for a particular observation point change through a frequency sweep.

When this option is chosen from the Show Results > Field > View Cuts By Frequency menu, the panel presented in the figure below will appear.

View cuts by frequency window

 

Similar to the behavior of the standard View Cuts, this panel displays a plot with the results, and several options for adding and removing extra series from the plot.

When initially open, the panel will display a default series in the plot that will represent the measurements for a particular component, step, and observation direction, against every possible frequency that has been simulated. More series can be added, by selecting the component, step and sweep representation information in the control panel that appears left side to the plot.

  • Component: the plane wave component to inspect. Select one of the possible values: VV, HV, VTotal, HH, VH, HTotal
  • Step: the parametric step to select. These should have been defined prior to the calculation when designing the simulation.
  • Sweep representation: select one value for one of the variables: radius, theta or phi.

The selected series can be added to the plot by pressing the Add Series button. It is also possible to modify the look and delete series previously added to the chart. You can change the color of a particular series by selecting it in the list and pressing the Change Colors. To remove a series from the plot representation, click on the Remove series button.

Series can be imported and exported. To save a series click on the Export series button. Later it is possible to load previously exported series by pressing the Import Series button and locating the file where the results were saved in.

12.2.3. View Cuts by Step

This kind of plot lets the user analyze field measurements made by the simulation proves for a particular component, frequency and observation point against the parametric steps defined in the project. This option is useful when the user has parametrized a simulation by adding parameters and making objects such as geometries depend on the parameters themselves.

When this option is chosen from the Show Results > Field > View Cuts by Steps menu, the panel presented below will appear:

 

View cuts by step window

 

Similar to the behavior of the standard field chart, this panel displays a plot with the results, and several options for adding and removing extra series from the plot.

When initially open, the panel will display a default series in the plot that will represent the measurements for a particular component, frequency and observation point, against every possible step that has been simulated. More series can be added, by selecting component and frequency in the control panel that appears left side to the plot.

  • Component: the field component to inspect. Select one of the possible values: Etheta, Ephi, Etotal.
  • Frequency: frequencies that have been simulated.
  • Sweep representation: select one value for one of the variables: radius, theta or phi.

The selected series can be added to the plot by pressing the Add Series button. It is also possible to modify the look and delete series previously added to the chart. You can change the color of a particular series by selecting it in the list and pressing the Change Colors. To remove a series from the plot representation, click on the Remove series button.

Series can be imported and exported. To save a series click on the Export series button. Later it is possible to load previously exported series by pressing the Import Series button and locating the file where the results were saved in.

12.2.4. View Text Files

This option shows the simulation results as a text file. First, a panel should appear after selecting this option. Selecting this option will display a panel where the user should select a step, an order, a radius and a frequency. To use this section, select a parametric step from the list and one of the orders shown in the list to get the results from and click on OK to load the data. A table will be presented with the values for the electrical field. To save the result click on the Export button below the table.

View text fiel window

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