Measuring the Inertia Matrix with respect to the Origin O of the Document

  1. Select Measure Inertia  .

  2. Click Customize... in the Measure Inertia dialog box. The Measure Inertia Customization dialog box is displayed.

  3. In the Measure Inertia Customization dialog box, click Inertia matrix / O.

  4. Click Apply. The Inertia / O tab in the Measure Inertia dialog box becomes available. Entries for the inertia matrix appear in the specification tree.

  5. Click the Inertia / O tab to display the inertia matrix of selected items with respect to the origin O of the document.