topic Re: Interference between the components in Fusion API and Scripts Forum

Interference between the components

eswaranmec92 — Tue, 05 Apr 2022 12:17:15 GMT

I prepared script for analyzing the interference between the components in the assembly product. While i running the script , only the component 5 is highlighted. Please help me to find out the solution for the below issue.

#Author-

#Description-

import adsk.core, adsk.fusion, adsk.cam, traceback

def run(context😞

ui = None

try:

app = adsk.core.Application.get()

ui = app.userInterface

product = app.activeProduct

design = adsk.fusion.Design.cast(product)

design.designType = adsk.fusion.DesignTypes.DirectDesignType

root = design.rootComponent

occurrences = root.occurrences

body1 = occurrences.item(0).bRepBodies.item(0)

body2 = occurrences.item(1).bRepBodies

body3 = occurrences.item(2).bRepBodies

body4 = occurrences.item(3).bRepBodies

body5 = occurrences.item(4).bRepBodies

inputcomp = adsk.core.ObjectCollection.create()

inputcomp.add(body1)

inputcomp.add(body2)

inputcomp.add(body3)

inputcomp.add(body4)

inputcomp.add(body5)

input = design.createInterferenceInput(inputcomp)

input.areCoincidentFacesIncluded = True

results = design.analyzeInterference(input)

interferenceBodies = results.createBodies(True)

resultsOccurrence = occurrences.item(occurrences.count-1)

resultsOccurrence.activate()

# Fit the view

viewport = app.activeViewport

viewport.fit()

bod = 0

for res in results:

comp1Name = res.entityOne.parentComponent.name

comp2Name = res.entityTwo.parentComponent.name

bodyVolume = str(round(res.interferenceBody.volume, 2))

interferenceBodies.item(bod).name = 'Interference between ' + comp1Name + ' & ' + comp2Name

ui.messageBox('There is interference between ' + comp1Name + ' and ' + comp2Name + ' with a volume of ' + bodyVolume + ' cubic centimeters')

bod += 1

except:

if ui:

ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

Re: Interference between the components

kandennti — Wed, 06 Apr 2022 00:13:06 GMT

Hi @eswaranmec92 .

Because bRepBodies is assigned to ObjectCollection, interference is not checked.

Fixed as follows.

import adsk.core, adsk.fusion, adsk.cam, traceback def run(context): ui = None try: app = adsk.core.Application.get() ui = app.userInterface product = app.activeProduct design = adsk.fusion.Design.cast(product) design.designType = adsk.fusion.DesignTypes.DirectDesignType root = design.rootComponent occurrences = root.occurrences body1 = occurrences.item(0).bRepBodies.item(0) body2 = occurrences.item(1).bRepBodies body3 = occurrences.item(2).bRepBodies body4 = occurrences.item(3).bRepBodies body5 = occurrences.item(4).bRepBodies inputcomp = adsk.core.ObjectCollection.create() inputcomp.add(body1) # inputcomp.add(body2) [inputcomp.add(b) for b in body2] # inputcomp.add(body3) [inputcomp.add(b) for b in body3] # inputcomp.add(body4) [inputcomp.add(b) for b in body4] # inputcomp.add(body5) [inputcomp.add(b) for b in body5] input = design.createInterferenceInput(inputcomp) input.areCoincidentFacesIncluded = True results = design.analyzeInterference(input) interferenceBodies = results.createBodies(True) # resultsOccurrence = occurrences.item(occurrences.count-1) # resultsOccurrence.activate() # Fit the view viewport = app.activeViewport viewport.fit() bod = 0 for res in results: comp1Name = res.entityOne.parentComponent.name comp2Name = res.entityTwo.parentComponent.name bodyVolume = str(round(res.interferenceBody.volume, 2)) interferenceBodies.item(bod).name = 'Interference between ' + comp1Name + ' & ' + comp2Name ui.messageBox('There is interference between ' + comp1Name + ' and ' + comp2Name + ' with a volume of ' + bodyVolume + ' cubic centimeters') bod += 1 except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

Re: Interference between the components

eswaranmec92 — Wed, 06 Apr 2022 04:55:16 GMT

Respected sir, Thank you for your valuable response.

Any possibility to analyze clash between the components by using fusion 360 API script. For example I want to analyze the clash of Component 1 with all other components and similarly component 2 with all other components and vice versa... If possible , please help me to find out the solution for the above stated problem.

Re: Interference between the components

eswaranmec92 — Wed, 06 Apr 2022 05:14:53 GMT

For the above script, the following results obtained.

First displayed:

There is interference between CONNECTOR and Part1 with a volume of 0.0 cubic centimeters

Next Display: sows the following issue.

Failed:

Traceback (most recent call last):

File "C:/Users/MECH LAB/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/Scripts/com/com.py", line 45, in run

interferenceBodies.item(bod).name = 'Interference between ' + comp1Name + ' & ' + comp2Name

AttributeError: 'NoneType' object has no attribute 'name'

Please guide me to get the solution.

Re: Interference between the components

kandennti — Wed, 06 Apr 2022 05:28:28 GMT

@eswaranmec92 .

How about a way to check for interference in the bodies of all components and check the entityOne and entityTwo in the InterferenceResult object?

https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-GUID-F5EE87C8-EACB-4D90-B5FF-607ECB6E285B

This sample creates 100 spheres and extracts only the interfering parts of the first 10 and the remaining 90 bodies.

https://forums.autodesk.com/t5/fusion-360-api-and-scripts/find-any-interferance-with-active-objects-and-only-one-tool/m-p/10889382#M15489