topic Determine if document is a "Part" or a "Assembly in Fusion API and Scripts Forum

Determine if document is a "Part" or a "Assembly

isocam — Thu, 05 Aug 2021 09:37:17 GMT

Can anybody help?

Is it possible, using a Python script to determine if the document that is opened, is a "Part" or an "Assembly" and show this in a message box?

The document is a Part

The document is a Assembly

Many thanks in advance!

Darren

Re: Determine if document is a "Part" or a "Assembly

kandennti — Thu, 05 Aug 2021 10:28:52 GMT

Hi @isocam .

I interpreted this as determining if Occurrence had a link.

You can use the isReferencedComponent property to determine this.

https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-6D3CD4ED-570D-433D-97AD-EB110DA94177

# Fusion360API Python script import adsk.core, adsk.fusion, traceback def run(context): ui = adsk.core.UserInterface.cast(None) try: app :adsk.fusion.Application = adsk.core.Application.get() ui = app.userInterface des :adsk.fusion.Design = app.activeProduct root :adsk.fusion.Component = des.rootComponent for occ in root.allOccurrences: print(f'{occ.name} : {occ.isReferencedComponent}') except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

Re: Determine if document is a "Part" or a "Assembly

BrianEkins — Fri, 06 Aug 2021 00:48:37 GMT

Fusion doesn't differentiate between a part and an assembly, so it's up to us to define what a part or assembly is.

The pure definition is a part is a component that only contains bodies and not any occurrences. An assembly is a component that only contains occurrences and no bodies. Anything else is some kind of a part and assembly hybrid. Here's some code that determines this.

def determineDocumentType(): try: app = adsk.core.Application.get() ui = app.userInterface design = adsk.fusion.Design.cast(app.activeProduct) root = design.rootComponent if root.occurrences.count > 0 and root.bRepBodies.count > 0: ui.messageBox('Document is a hybrid of assembly and part.') elif root.occurrences.count > 0 and root.bRepBodies.count == 0: ui.messageBox('Document is an assembly.') elif root.occurrences.count == 0 and root.bRepBodies.count > 0: ui.messageBox('Document is a part.') elif root.occurrences.count == 0 and root.bRepBodies.count == 0: ui.messageBox('Document is an empty part.') except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))