Autodesk Robot Structural Analysis

[#1]

Hi,

I would like to change default units for forces with Robot API, and set N instead of kN.

Here is my script :

Dim projPref As RobotProjectPreferences

projPref = Robot.Project.Preferences
projPref.Units.Set(IRobotUnitType.I_UT_FORCE, N)

The last line does not work (red part).

What is the appropriate syntax to set the unit to Newtons ?

[#2 · Accepted solution]

Dim Robot As New RobotApplication
Dim projPref As RobotProjectPreferences
Set projPref = Robot.Project.Preferences

Dim RU As RobotUnitData
Set RU = projPref.Units.Get(I_UT_FORCE)

RU.E = False
RU.Name = "N"
RU.Precision = 2

projPref.Units.Set I_UT_FORCE, RU

[#3]

Thanks.

[#4]

It works for forces, but it does not work for moments. Here is my code : 

Dim projPref As RobotProjectPreferences
Dim RU As RobotUnitData
projPref = Robot.Project.Preferences
RU = projPref.Units.Get(IRobotUnitType.I_UT_FORCE)
RU.E = False
RU.Name = "daN"
RU.Precision = 2
projPref.Units.Set(IRobotUnitType.I_UT_FORCE, RU)
RU = Nothing
RU = projPref.Units.Get(IRobotUnitType.I_UT_MOMENT)
RU.E = False
RU.Name = "daN*m"
RU.Precision = 2
projPref.Units.Set(IRobotUnitType.I_UT_MOMENT, RU)

I don't get any error message, but it does not work for moment, whereas it works for forces. 

[#5 · Accepted solution]

Dim RUCD As RobotUnitComplexData
Set RUCD = projPref.Units.Get(I_UT_MOMENT)

RUCD.E = False
RUCD.Name = "daN"
RUCD.Name2 = "m"
RUCD.Precision = 2

projPref.Units.Set I_UT_MOMENT, RUCD

[#6]

Thanks.

[#7]

Hi,

Sorry to come back again to this topic which appears as solved, but there is still a problem with units in my script. In Robot, if I go to Tools>Project Preferences>Units>Force, I can see that kN changed to daN, as I wanted.

The problem is that when I calculate and then display the forces array (Results>Forces), forces are still in kN in the array. So I have to go to  Tools>Project Preferences>Units>Force and quit, and then the array is updated and forces appear in daN.

So there is a kind of "refresh" problem for units.

Same problem if I want to diplay forces diagrams. Unless I open Tools>Project Preferences>Units>Force, forces are still in kN.

How can I fix this ?

[#8]

That's interesting, we have to check it.

[#9]

Hi,

Any answer to my problem ?

Thanks

[#10]

It will not be possible for us to investigate this situation before the next week.

Try to add projPref.Units.Refresh at the end of your code.