Amplification Magnitude

This task shows how to use the Amplification Magnitude command.

Amplification magnitude consists in scaling the maximum displacement amplitude for visualizing a deformed mesh image.
You can either choose a large scaling coefficient to zoom on the deformed geometry or a small coefficient to obtain a realistic visualization.

Open the sample26.CATAnalysis document from the samples directory.

  1. Click Amplification Magnitude .

    The Amplification Magnitude dialog box appears.

    • Scaling factor: lets you modify the amplification magnitude for deformation visualization using a constant scale factor
      • Factor: lets you specify the scaling factor.
        A slider lets you dynamically modify the scale factor from 0 to a maximal value.
      • Default: lets you return to the default scaling factor.
    • Maximum amplitude: lets you modify the amplification magnitude for deformation visualization using a constant maximum amplitude (artificial)
      • Length: lets you specify the value of the maximum allowed deformation on the image (in mm).

        The default unit for the Length option is fixed in the Options dialog box (General > Parameters and  Measure > Units tab).
        To know more, refer to the Infrastructure User's Guide.
      • Default: lets you return to the default amplification magnitude.
    • Set as default for future created images: lets you apply the modified amplification magnitude parameter (factor or length) to the future created images.

    To summarize:

    maximum amplitude = real deformation * scaling factor

    To visualize the real deformation, the scaling factor must be equal to 1.

  2. Select the Scaling factor option in the Amplification Magnitude dialog box.

  3. Enter 300 as Factor value and press Enter.

    As a result, the deformation is increased.

  4. Click the Default button and then click OK.

    The image retrieves the default deformation.