The analysis class defines how Tekla Structures handles individual parts in the analysis. You can show the analysis class of parts in an object group using different colors in the physical model.

1. On the Analysis & design tab, click A&D models.
   
2. In the Analysis & Design Models dialog box, select an analysis model.
3. On the View tab, click Representation.
4. In the Object Representation dialog box:
   1. Select an object group.
   2. In the Color column, select Color by analysis type from the list.
   3. Click Modify.