JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Assign diaphragm dialog This dialog is used to assign diaphragms for lateral loads to a group of nodes. Opens when the Diaphragms tool is selected on the Node ribbon tab in the Diaphragm group. SettingDescription Mass center method Select the method for how the center of mass is provided: Automatic - program calculated Manual - Specify the centroid and eccentricity in both directions. Center mass coordinates (for Manual option) SettingDescription X Global X coordinate of the mass of mass Y Global Y coordinate of the mass of mass Z Global Z coordinate of the mass of mass Parent topic: Tools: Node Ribbon Tab Related tasks To define diaphragms