Create a Group World Element for Center of Gravity

The Group world element must be the level above a group element in the database hierarchy.

Once the Group World element is created, you are returned to the Groups window and the element is inserted into the hierarchy, the group sets element must now be created.

Once the Group element is created, you are returned to the Groups window and the element is inserted into the hierarchy, the group sets element must now be populated.

1. Make sure the required element is selected in the design explorer (identified as the CE).

2. Right-click the CE to display the dropdown menu.

3. Select Add Current Elements to add the elements which make up the CE to the Group.

4. Once the group has been created and populated, select Control then Close. The Group window is closed.

5. Select the group element for which the calculation of center of gravity is required.

6. Select to identify the group element (GPSET) as the CE in the Design Explorer, from the main menu bar, select Utilities > Centre of Gravity to display the Centre of Gravity. (HVAC) window:

   

   The Centre of Gravity. (HVAC) window identifies the group element in the design explorer as the CE and calculates the total weight and C of G of the CE.

   CE	Select to identify the selected element in the design explorer as the CE.
   Unhighlight	Select to remove the red highlight from the CE.
   Apply	Select to calculate the total weight and centre of gravity of the CE and display the results in the HVAC Command window. The CE is highlighted in red in the 3D graphical view.
   Dismiss	Closes the Centre of Gravity. (HVAC) window.

   

   Note: The calculated C of G is displayed in the 3D graphical view.