Applies To
	Product(s):	STAAD.Pro
	Version(s):	All
	Environment:	N/A
	Area:	OpenSTAAD
	Subarea:	Dynamic, Output
	Original Author:	Bentley Technical Support Group, Shreyanka Bhattacharjee

Problem Description:

How to extract Modal Mass Participation Factor using OpenSTAAD function (VBA)

Solution:

GetModalMassParticipationFactors function returns Modal Mass Participation Factor in X, Y and Z direction.

Parameter:

GetModalMassParticipationFactors : 

[Input] varMode :Mode Number

[Output] patX : Modal mass participation factor for X direction

[Output] patY : Modal mass participation factor for Y direction

[Output] patZ : Modal mass participation factor for Z direction

Sample VBA Syntax:

Dim varMode As Long
Dim patX As Double
Dim patY As Double
Dim patZ As Double

Set objOpenSTAAD = GetObject(, "StaadPro.OpenSTAAD")

varMode = 1 'Mode #1
objOpenSTAAD.Output.GetModalMassParticipationFactors varMode, patX, patY, patZ

'Get Modal Mass Participation Factors for Mode #1.
Cells(2, 2).Value = patX
Cells(2, 3).Value = patY
Cells(2, 4).Value = patZ