Create constraint with "value" ( Parameter and/or Math Syntax, etc )

[Crstiano]

Components.Add("MyNewComponent", MyFile.ipt)	
Constraints.AddFlush("Flush:1", "MyNewComponent", "XY Plane", "", "XY Plane", Distance) 

There are a function that simulate the same routine that the inventor does a textbox for enter distance value ?

Or verify is there are parameter, or is a math syntax, or both..

Or someone writed all these checks and can do share this code?

I accept suggestions.

Thanks in advance

[WCrihfield]

Are you asking about this function?

Dim oDistance As Double = InputBox("Enter Distance.")

[Crstiano]

Maybe I'm created a tempest in a teapot...

The question is about: How to create a textbox at form equal (with all features includes) like the autodesk inventor ?

example: the offset at constraint, where its check if the value is: parameter , a syntax math, or if you specify which units etc...

[JhoelForshav]

Hi @Crstiano 

What you write in the textbox for distance is actually a parameter expression.

You can use UnitsOfMeasure to evaluate if an expression is valid. See iLogic code below. In the example I let the user type in an expression. It can contain names of parameters in the document, math signs etc. If its a valid length the code will return the calculated length in a msgbox, else it'll tell you the expression isn't valid.

Dim oUOM As UnitsOfMeasure = ThisDoc.Document.UnitsOfMeasure
Dim otext As String = InputBox("Length expression: ", "write expression")
Dim oValidEx As Boolean
Try
oValidEx = oUOM.CompatibleUnits(otext, UnitsTypeEnum.kDefaultDisplayLengthUnits, "1", UnitsTypeEnum.kDefaultDisplayLengthUnits)
Catch
oValidEx = False
End Try
If oValidEx
	Dim oValue As Double = oUOM.GetValueFromExpression(otext, UnitsTypeEnum.kDefaultDisplayLengthUnits)
	Dim oValueString As String = oUOM.GetStringFromValue(oValue, UnitsTypeEnum.kDefaultDisplayLengthUnits)
	MsgBox("Return length: " & oValueString)
Else
	MsgBox("Not valid length expression")
End If

Check page 21 here for the textbox you describe 🙂

https://modthemachine.typepad.com/files/ipropertiesandparameters.pdf