Autodesk Inventor Engineer-to-Order

[#1]

I'm trying to set the iProperties value Mass.  I'm using a placeholder block to cut down on the graphics load, but I still want the part to reflect the correct weight load and weight distribution.  I'm starting with the flollowing code:

child block as :block, quantity = 4

    iProperties = {{"Mass", 8}}

end child

the value shows up here

but not here

how do I pass the value through?

Thanks,

Andrew

[#2]

Not sure why this isn't working for mass properties. The same technique seems to for custom properties, e.g.

 iProperties = {{"test", 200.0}}

Then a custom property is added:

[#3]

Hi,

iProperties are stored in the Inventor document/file (IPT, in your case). If you switch to the ClientGraphics implementation of the block, there will not be a document behind it.

You may consider adding the Parameter/Rule to keep the value of the mass.

[#4]

I'm not sure what you mean by "adding the Parameter/Rule to keep the value of the mass".  

What are ClientGraphics?

Do you have an example of how I would go about doing this?  

What do you mean by "keep the value of the mass"?

Andrew

[#5]

Create new Design that extends block:

Design BlockWithMass : Block
	Rule Density As Number = 10.0

	Rule Mass As Number = Me.width*Me.height*Me.length*Density

        Parameter Rule Mass1 As Number = 0.0
End Design

Create the child list in your assembly:

Child block As :BlockWithMass , Quantity = 5
    width = child.index
    height = child.index
    length = child.index

    origin = Point( child.index*2, 0, 0)

    Mass1 = 8.0

End Child

Please note that Mass is a Rule (which is calculated from the block size), and Mass1 is a Parameter, that can be specified during creation of the BlockWithMass

Mass of the block 3 will be determined as:

Intent >block_3.mass
--> 270.0
Intent >block_3.mass1
--> 8.0
Intent >

[#6]

what does the iv_setProperty method do/how does it function?

[#7]

Hi,

The first argument to the function iv_PropertyPut should be an Intent Part. The implementation tries to find the Inventor Document that owns the property. 

In your case, Block will not have the Inventor Document behind it, so Intent will try to find the Document in Block's parent.

[#8]

If you're not able to set the mass using the default iProperties rule, as a workaround you can implement your own that calls the Inventor API, for example:

Method UpdateMass(Mass As Number) As Boolean
 Try
  Dim invApp As Any=%%InventorApplication
  
  Dim activeDoc As Any=invApp.ActiveDocument

  If activeDoc<>NoValue Then
   
   If activeDoc.DocumentType=Inventor.DocumentTypeEnum.kPartDocumentObject Or _
         activeDoc.DocumentType=Inventor.DocumentTypeEnum.kAssemblyDocumentObject Then
         
    Dim massprops As Any=activeDoc.ComponentDefinition.MassProperties
    massprops.Mass=Mass
    
    Return True
   End If
  End If
  
  Return False
  
 Catch Error  
  Return False
 End Try
 
End Method