topic Re: Creating parameters with script problem in Fusion API and Scripts Forum

Creating parameters with script problem

brad.bylls — Sat, 08 Aug 2020 19:17:46 GMT

My first try at scripting so please bear with me.

I have gone through the forum and tried lots of different examples, but nothing seem to work.

I am reading a csv file and then trying to create some user parameters.

I am reading the file ok and get the correct values, but when I try to create the parameters, BOOM:

This is the code in question:

cnt = 0

file = open('C:/Users/bradb/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/Scripts/SHCStest/SHCS-IMPERIAL.csv')

for line in file:

# Get the values from the csv file.

pieces = line.split(',')

if pieces[0] == '1/2-13':

ScrewDiameter = pieces[1]

HeadDiameter = pieces[2]

HexSize = pieces[4]

TapDrill = pieces[5]

HeadFillet = pieces[6]

# Create user parameters

# Set the parameters.

ScrewDiameterParam = design.userParameters

ScrewDiameterParam.add('ScrewDiameter', ScrewDiameter, 'in', '')

Being new I am not sure how to track down the proper syntax, arguments, etc in the documentation.

Any help is appreciated.

Thank you in advance.

Brad

Re: Creating parameters with script problem

Anonymous — Sun, 09 Aug 2020 02:58:23 GMT

Assuming that the ScrewDiameter is a number, you need to use ValueInput.createByReal to create the value that you use to save the parameter. You can’t store the number directly.

Something like:

ScrewDiameterParam.add('ScrewDiameter', ValueInput.createByReal(ScrewDiameter), 'in', '')

Here’s some code that I’m using for something similar.

Re: Creating parameters with script problem

brad.bylls — Sun, 09 Aug 2020 20:04:36 GMT

There was supposed to be a picture showing the error message. Here is the error:

in method 'UserParameters_add', argument 3 of type 'adsk::core::Ptr< adsk::core::ValueInput > const &'

File "c:\users\bradb\appdata\local\autodesk\webdeploy\production\d2d901e2ef5ae5c384b4ac001a48c4e37589dc43\api\python\packages\adsk\fusion.py", line 31754, in add return _fusion.UserParameters_add(self, *args) File "c:\Users\bradb\AppData\Roaming\Autodesk\Autodesk Fusion 360\API\Scripts\SHCStest\SHCStest.py", line 30, in <module> ScrewDiameterParam.add('ScrewDiameter', ScrewDiameter, 'in', '')

Re: Creating parameters with script problem

brad.bylls — Sun, 09 Aug 2020 20:08:50 GMT

Thank you.

I tried it, but an error message said 'ValueInput not created'

I also looked at your code and found nothing similar.

I am a newbe and must be missing something.

Re: Creating parameters with script problem

Anonymous — Sun, 09 Aug 2020 20:18:14 GMT

I wasn't thinking when I replied to you. I'm guessing that when you are reading the file, the ScrewDiameter is being read as a string, in which case, you need to use ValueInput.createByString instead of createByReal.

Try this:

cnt = 0 file = open('C:/Users/bradb/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/Scripts/SHCStest/SHCS-IMPERIAL.csv') for line in file: # Get the values from the csv file. pieces = line.split(',') if pieces[0] == '1/2-13': ScrewDiameter = pieces[1] HeadDiameter = pieces[2] HexSize = pieces[4] TapDrill = pieces[5] HeadFillet = pieces[6] # Create user parameters # Set the parameters. ScrewDiameterParam = design.userParameters ScrewDiameterParam.add('ScrewDiameter', ValueInput.createByString(ScrewDiameter), 'in', '')

Re: Creating parameters with script problem

brad.bylls — Tue, 11 Aug 2020 13:18:32 GMT

That didn't work, but I finally tracked down some code that did.

https://help.autodesk.com/view/fusion360/ENU/?caas=caas/discussion/t5/Fusion-360-API-and-Scripts/csv-script/td-p/5925524.html

Thank you for the input.

Re: Creating parameters with script problem

MattPerez314 — Wed, 09 Feb 2022 16:56:20 GMT

Since this was the closest answer to a question I struggled with I thought I would add to it. The api example reading from the CSV works if you want to do that, but I was wanting to just create a parameter directly. Without getting into user inputs here is the basic code.

import adsk.core, adsk.fusion, adsk.cam, traceback def run(context): ui = None try: app = adsk.core.Application.get() ui = app.userInterface design = adsk.fusion.Design.cast(app.activeProduct) #retParam = design.userParameters.itemByName('Size') #ui.messageBox(retParam.expression) widthValueInput = 5.0 inputUnits = 'mm' widthValuePass = widthValueInput / 10 widthValue = adsk.core.ValueInput.createByReal(widthValuePass) design.userParameters.add('width',widthValue,inputUnits,'') except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

I left the retParam in there commented out because I used that to find if a parameter was in the design and then I returned the expression from that back to the user. I thought it might be helpful for anyone trying to do this. I did leave an input value(even though the code isn't prompting the user) and the widthValuePass is converting it from cm to mm before using ValueInput.createByReal.

Hope it helps someone!

Re: Creating parameters with script problem

brad.bylls — Wed, 09 Feb 2022 17:46:39 GMT

Thanks for the input.

This is what I ended up doing.

# Create user parameters userParams = des.userParameters MOLDparam = userParams.add('Mold_Exists', adsk.core.ValueInput.createByString('Exists'), '', 'Exists') TCPparam = userParams.add('TCP_thickness', adsk.core.ValueInput.createByReal(numPlateTCPthickness), 'in', 'TCP Plate Thickness') Aparam = userParams.add('A_thickness', adsk.core.ValueInput.createByReal(numPlateAthickness), 'in', 'A Plate Thickness')

And then used this to update the model parameters using the User Parameters

# Modify model parameters # TCP plate extent_1 = plateTCPext.extentOne extent_2 = plateTCPext.extentTwo distanceMP_1 = extent_1.distance distanceMP_2 = extent_2.distance distanceMP_1.expression = 'TCP_thickness + A_thickness' distanceMP_2.expression = 'A_thickness * -1'