Distance between two faces in assy as a parameter

[GoranBe]

Hello

What is the easiest way to get distance between two faces, store it into some user parameter and have the value updated if the distance changes. From experience I know that if I Measure the parameter value it will not update, if the distance changes. I tried to create dimension annotation in model, but I am not aware of how to use it's value as a parameter. In short, I'd like to have 47,00 mm dimension value from the picture below stored in the (named) parameter and updated, if it changes due to any reason - housing height change, constrains change etc...

Thanks for your ideas

Goran

[JhoelForshav · Accepted solution]

hi @GoranBe 

Try this iLogic to get the 3D dimension value:

Dim oAsm As AssemblyDocument = ThisDoc.Document
Dim oCompDef As AssemblyComponentDefinition = oAsm.ComponentDefinition
Dim oDimension As LinearModelDimension
oDimension = oCompDef.ModelAnnotations.ModelDimensions.LinearModelDimensions.Item("OHa")
Dim oValue As Double = oDimension.ModelValue 'Database units (cm)

MsgBox(oValue) 

Dim oValue2 As Double = CDbl(oDimension.Definition.Text.Text) 'Convert the actual dimension text to double

MsgBox(oValue2)

[GoranBe]

Jhoel,

you made my day, thanks. @JhoelForshav, just one more question if I may - in your opinion what is the best source to learn iLogic objects? Me personally I just couldn't find "...ModelAnnotations.ModelDimension..." in online help resources for example.

Thanks again

Goran

[JhoelForshav]

Hi @GoranBe 

I usually inspect the objects by simply typing in the iLogic editor

But klicking your way through the objects in the API help is also a good way.

http://help.autodesk.com/view/INVNTOR/2020/ENU/?guid=GUID-D675E860-ADB7-4771-ADAB-2EEEB214F9EC

If i have no clue where to start i usually search this forum or do a google search to find some object related to what I'm trying to do 🙂