topic Re: Curve Length as Reference Parameters in Rectangular Pattern in Inventor Programming Forum

Curve Length as Reference Parameters in Rectangular Pattern

kresh.bell — Wed, 28 Dec 2022 08:39:14 GMT

Hi,

I first tried to solve this problem on the general discussion forum, but I was instructed to try here anyway.

I have an adaptive part.

Does anyone know how I can use curve Length value from the Pattern feature for some other feature or as a linked value?

This value does not exist in Reference Parameters, nor is it in Model Parameters and User Parameters, but that curve length exists, the value is also displayed in gray.

Is it possible to use that length with iLogic?

Re: Curve Length as Reference Parameters in Rectangular Pattern

dalton98 — Wed, 28 Dec 2022 14:17:06 GMT

Hello. I messed around with it for a bit and what I think your after is the X/Y 'DirectionEntity'. The problem however is the edge can be overridden if it is part of the pattern. In that case you will have half the value. So ideally you would need to create a separate sketch to pattern off of.

Dim oDoc As PartDocument = ThisDoc.Document
Dim oRPF As RectangularPatternFeature = _
oDoc.ComponentDefinition.Features.RectangularPatternFeatures(1)

Dim oEdge As Edge = oRPF.Definition.XDirectionEntity

oEdge.Evaluator.GetParamExtents(MinParam, MaxParam)

MessageBox.Show(MaxParam - MinParam)

Re: Curve Length as Reference Parameters in Rectangular Pattern

kresh.bell — Wed, 28 Dec 2022 16:47:39 GMT

Hi,

I didn't quite understand you, but when I run your iLogic I get this

Re: Curve Length as Reference Parameters in Rectangular Pattern

dalton98 — Wed, 28 Dec 2022 17:45:21 GMT

What is the Direction or 'Curve Length' based off of? I was assuming it was an Edge. It is some kind of GeometryIntent then since the other options dont have a 'Curve Length'

Maybe try searching for its ObjectType

MessageBox.Show(oRPF.Definition.XDirectionEntity.Type.ToString)

Re: Curve Length as Reference Parameters in Rectangular Pattern

dalton98 — Wed, 28 Dec 2022 17:57:57 GMT

Ok it would probably look something more like this

Dim oDoc As PartDocument = ThisDoc.Document
Dim oRPF As RectangularPatternFeature = _
oDoc.ComponentDefinition.Features.RectangularPatternFeatures(1)

Dim oPath As Path = oRPF.Definition.XDirectionEntity
Dim oLine As LineSegment = oPath(1).Curve

MessageBox.Show(ThisApplication.MeasureTools.GetMinimumDistance(oLine.StartPoint, oLine.EndPoint))

'oLine.Evaluator.GetParamExtents(MinParam, MaxParam)
'oLine.Evaluator.GetLengthAtParam(MinParam, MaxParam, oLength)
'MessageBox.Show(oLength)

Re: Curve Length as Reference Parameters in Rectangular Pattern

kresh.bell — Wed, 28 Dec 2022 18:10:32 GMT

Hi,

something is wrong

Most likely, I did not explain well.

I have an assembly that I use as a template for iCopy (see attch). Everything works ok. But I have a "quantity" parameter. The problem starts when I want to add to that assembly parts that I want to duplicate with the pattern feature.

Re: Curve Length as Reference Parameters in Rectangular Pattern

dalton98 — Wed, 28 Dec 2022 20:10:06 GMT

We're still using Inventor 2022 so I cant view it. The length has to be based off something though, cant you just find that line/curve and dimension it to make a parameter then link that parameter value?

Sorry if I'm not understanding, havn't worked with iCopy before.

Re: Curve Length as Reference Parameters in Rectangular Pattern

t_fransman — Fri, 11 Jul 2025 14:34:53 GMT

This should automatically make a ref para. So you can use an equation to get the ... Qty Value. Above. Did you ever get an ilogic that actually works? Same problem or very similar here!