topic Re: iLogic picking up part volume (Solid 1 only) in Inventor Programming Forum

iLogic picking up part volume (Solid 1 only)

Anonymous — Fri, 17 Jan 2020 10:17:29 GMT

Hi.

I have a part that I want to keep as an ipt rather than an assembly. The part is a block with a thin plate attached either side. I have created the block as "Solid 1" then offset a workplane 0.1mm from the side and extruded a 2mm plate as "Solid 2 (then mirrored as part of solid 2).

I have a bit of code sending the part volume to a custom iProperty and this is in turn picked up by the idw in a text box.

The volume being picked up is "The Part". What I need to pick up is the volume for "Solid 1" only.

Is there a way I can set this or is there a bit of code that would do it?

Many thanks,

Terry

Re: iLogic picking up part volume (Solid 1 only)

Fabian_perree — Fri, 17 Jan 2020 10:30:13 GMT

Hi @Anonymous ,

I can't find a way to do that without Ilogic.

I've done that some time before, (see part attached, Rule1) thanks to @MjDeck from his post here : https://forums.autodesk.com/t5/inventor-forum/body-volume-to-be-assigned-to-a-parameter/td-p/3634716.

once you've had the "SolidFunctions" in your code the rule is quite simple :

Dim bodies As New SolidBodies(ThisDoc.Document)
Volume1 = bodies.Body("Solide1").Volume
Volume2 = bodies.Body("Solide2").Volume

Best Regards

Re: iLogic picking up part volume (Solid 1 only)

Sergio.D.Suárez — Fri, 17 Jan 2020 10:36:41 GMT

Hi, here is an ilogic rule that you can place in your multibody file. You can add an event trigger to activate the rule every time you save the document. This rule will take the solid volume highlighted in red and place it in a custom property called "VolSolid1". Keep in mind that the units are in cm ^ 3. In the end you can specify the decimals you need.

Dim doc As PartDocument= ThisDoc.Document
Dim oCD As ComponentDefinition = doc.ComponentDefinition
Dim oSolid As SurfaceBody = oCD.SurfaceBodies(1)
Dim oVol As Double = oSolid.Volume(0.01)
'PrecisionPercent Double Input Double that specifies 
'the requested relative accuracy Of the result As a 
'percentage.For example, a value Of 0.01 requests a 
'maximum Error Of one percent.

iProperties.Value("Custom", "VolSolid1")= Round(oVol,3) & " cm^3"

I hope this helps with your work. Grettings!!

Re: iLogic picking up part volume (Solid 1 only)

Anonymous — Fri, 17 Jan 2020 10:51:57 GMT

Thanks very much for both replies.

This is my existing code which picks up the part volume, converts it to dm3 and then ensures that it displays the first zero if the volume is < 1.

Dim oValue As String = (Format(Round(iProperties.Volume / 1000000, 3), ".000"))
		If oValue < 1 Then 
			iProperties.Value("Custom", "Vol (dm3)") = "0" & oValue
		Else
			iProperties.Value("Custom", "Vol (dm3)") = oValue
		End If

I guess the above suggested will need to be augmented with the existing bit of code (which is beyond my knowledge!).

Any help would be greatly appreciated.

Thanks,

Terry

Re: iLogic picking up part volume (Solid 1 only)

Sergio.D.Suárez — Fri, 17 Jan 2020 11:09:16 GMT

Try the following. regards

Dim doc As PartDocument= ThisDoc.Document
Dim oCD As ComponentDefinition = doc.ComponentDefinition
Dim oSolid As SurfaceBody = oCD.SurfaceBodies(1)
Dim oVol As Double = oSolid.Volume(0.01) * 0.001 ' *0.001 is for dm^3

Dim oValue As String = (Format(Round(oVol, 3), ".000"))

If oValue < 1 Then 
	iProperties.Value("Custom", "Vol (dm3)") = "0" & oValue
Else
	iProperties.Value("Custom", "Vol (dm3)") = oValue
End If

Re: iLogic picking up part volume (Solid 1 only)

Anonymous — Fri, 17 Jan 2020 11:15:19 GMT

Thanks a million Sergio.

I was just playing around with it and was almost there.......... but then it got further away, so your solution is very gratefully accepted!

Thanks again,

Terry

Re: iLogic picking up part volume (Solid 1 only)

mglockel — Tue, 25 Mar 2025 14:01:13 GMT

Thank you for posting this. Was struggling to find a way to measure to measure the volume of a body in a specific part.

I have 2 bodies inside of a part, the first body I vary with parameters, and the second body is associated with the first. I can now run a loop for the parameters of the first body until the desired volume is achieved on the second body.

Appreciate it again!