topic Re: Ilogic form minimum / maximum parameter wizard in Inventor Programming Forum

Ilogic form minimum / maximum parameter wizard

mark.ellisBM9JT — Wed, 24 Feb 2021 23:16:35 GMT

Hi all

I'm creating an Ilogic form that contains certain parameters in the model and i would like to limit the values for these parameters.

I have used the minimum/maximum wizard in the rule logic.

My problem is if someone enters a value outside the range required then even though a message box warns them that parameter now takes on the new value (even though it is outside the range) or a set value of the minimum or maximum allowed. I got around this by creating a dummy parameter but it seemed a long way to do this for every parameter within the form.

Is there a simpler way. My model parameter is height, my dummy user parameter is mheight.

' ******* mheight Limits *******
If mheight >= 50 And mheight <= 100
  height = mheight
  ElseIf mheight < 50 Or mheight >100 Then
    MessageBox.Show("The value is outside the allowed range of 50 to 100mm", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error)
	mheight = False
	mheight = height
End If

Re: Ilogic form minimum / maximum parameter wizard

johnsonshiue — Thu, 25 Feb 2021 00:07:35 GMT

Hi Mark,

The rule actually can be simplified to the following. You can still keep the error message.

height = Min(height, 100)+Max(height,50)-height

Many thanks!

Re: Ilogic form minimum / maximum parameter wizard

mark.ellisBM9JT — Thu, 25 Feb 2021 01:27:24 GMT

so what happens to the parameter if i enter 101 will height keep its current value?

Re: Ilogic form minimum / maximum parameter wizard

A.Acheson — Thu, 25 Feb 2021 01:50:15 GMT

@mark.ellisBM9JT

You should be able to set the range in the form if values are defined , and also in the parameters fx dialogue.

As for ensuring value entered is in the current range.

The snippet you could be looking for is this.

MultiValue.SetValueOptions(True, DefaultIndex := 0)

In a normal multi value parameter this would reset to the first value of the parameter. 0 means 1st, 1 means 2nd etc

This will control the default value if not in the range set.

This article shows its use with an error catching statement.

https://microconcepts.typepad.com/design_automation/2015/01/updating-multi-value-parameter-list-options-and-ensuring-parameter-value-is-a-listed-value.html

I am fairly sure it will work in your situation, however I have not tried it on a custom ranged parameter as of yet.

You could also just set the parameter value to be smaller than the range manually if the material min or max is exceeded.

A couple of screenshots of the form settings could help too if this not solve your question or even easier attach a simplified form with parameter and rule.

Re: Ilogic form minimum / maximum parameter wizard

mark.ellisBM9JT — Thu, 25 Feb 2021 03:50:35 GMT

Don't think this multivalue will work in my case

Re: Ilogic form minimum / maximum parameter wizard

A.Acheson — Thu, 25 Feb 2021 03:59:10 GMT

@mark.ellisBM9JT

This seems to be more awkward than I thought. The solution above would just over complicate this and doesn't seem to work .

Another option is to use a slider form to set the visual limits of the parameter, however a value can still be entered in exceeding these limits, no model update will occur but the value does not get reset to the original value which is less than ideal. I am sure other user would have a better solution, consider moving it over to the customization forum to get more eyes on it.

Setting up Range Slider in Form
https://knowledge.autodesk.com/support/inventor/learn-explore/caas/screencast/Main/Details/0a14a8a5-608f-49a9-92de-e4aa9179c28b.html

'' ******* mheight Limits *******
If mheight >= 50 And Parameter("mheight") <= 100 Then
	
Else
	'Set value back to lowest if slider limits are exceeded
	mheight = 50
End If

Re: Ilogic form minimum / maximum parameter wizard

mark.ellisBM9JT — Thu, 25 Feb 2021 04:09:04 GMT

I have the solution in the code i first posted, a dummy parameter but it seems long winded but the replies i'm getting are no shorter.

I do not want to change the parameter to the minimum value if it gets entered out of range as this updates the model and this can be time consuming and unnecessary

Re: Ilogic form minimum / maximum parameter wizard

johnsonshiue — Thu, 25 Feb 2021 04:54:32 GMT

Hi Mark,

I think the solution I provided should work too. If you enter any value greater than 100, height will be 100. For anything less than 50, height will be 50. The in-between values will be unchanged.

Many thanks!

Re: Ilogic form minimum / maximum parameter wizard

mark.ellisBM9JT — Thu, 25 Feb 2021 04:58:00 GMT

I think you are misunderstanding what i mean. Lets say the parameter is 67mm and the maximum value is 100mm but a user enters 200 in the textbox then I want that dimension to stay as 67mm and not jump to 100mm thereby updating the model

Re: Ilogic form minimum / maximum parameter wizard

J-Camper — Thu, 25 Feb 2021 14:22:37 GMT

You can shorten it this much for sure:

' ******* mheight Limits ******* If mheight >= 50 And mheight <= 100 height = mheight Else Logger.Trace("Outside Range: " & mheight) mheight = height End If

You don't need the Else If, just an Else [unless there were more situations to consider than just 2]. Trace will not display message but does include a print out in the iLogic Log [when run in log level: trace] just so you know what was attempted.

I don't know why you were setting the parameter to False? Doesn't need to be there.