topic Re: SweepFeature path access errors in Fusion API and Scripts Forum

SweepFeature path access errors

codereclaimers — Tue, 05 Apr 2022 16:56:09 GMT

When a SweepFeature's path has been deleted, I get an error when attempting to set the path member of the SweepFeature object (note that spline is a SketchFittedSpline that was created to replace the original path):

if obj.objectType == adsk.fusion.SweepFeature.classType(): path = adsk.fusion.Path.create(spline, adsk.fusion.ChainedCurveOptions.noChainedCurves) obj.timelineObject.rollTo(True) obj.path = path

Traceback (most recent call last):

File "C:/Users/alan/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/Scripts/SplineModificationTest/SplineModificationTest.py", line 35, in run

obj.path = path

File "C:\Users/alan/AppData/Local/Autodesk/webdeploy/production/19107935ce2ad08720646cb4a31efe37d8a5f41b/Api/Python/packages\adsk\fusion.py", line 66391, in _set_path

return _fusion.SweepFeature__set_path(self, value)

RuntimeError: 2 : InternalValidationError : curPath

If I want to update a SweepFeature that's been invalidated by other operations, am I just out of luck?

(I also get a similar error if I instead attempt to get the current path from the invalidated SweepFeature; I would expect it to return None.)

Thanks in advance!

Re: SweepFeature path access errors

kandennti — Wed, 06 Apr 2022 00:54:49 GMT

Hi @codereclaimers .

I tried it and was able to replace the path without any problems.

# Fusion360API Python script import traceback import adsk.fusion import adsk.core def run(context): ui: adsk.core.UserInterface = None try: app: adsk.core.Application = adsk.core.Application.get() ui = app.userInterface app.documents.add(adsk.core.DocumentTypes.FusionDesignDocumentType) des: adsk.fusion.Design = app.activeProduct root: adsk.fusion.Component = des.rootComponent # create sweep initSweep() vp: adsk.core.Viewport = app.activeViewport vp.fit() ui.messageBox('Before replacement') # get SweepFeature tl: adsk.fusion.Timeline = des.timeline sweepFeat: adsk.fusion.SweepFeature = adsk.fusion.SweepFeature.cast( tl.item(tl.markerPosition - 1).entity ) if not sweepFeat: return # create new path newPathSkt: adsk.fusion.Sketch = root.sketches.add( root.xYConstructionPlane ) pnts: adsk.core.ObjectCollection = adsk.core.ObjectCollection.create() pnts.add(adsk.core.Point3D.create(0, 0, 0)) pnts.add(adsk.core.Point3D.create(2, 1, 0)) pnts.add(adsk.core.Point3D.create(2, 4, 3)) pnts.add(adsk.core.Point3D.create(-2, 6, 6)) newPathSkt.sketchCurves.sketchFittedSplines.add(pnts) path: adsk.fusion.Path = adsk.fusion.Path.create( newPathSkt.sketchCurves.sketchFittedSplines[0], adsk.fusion.ChainedCurveOptions.noChainedCurves ) # replace　path sweepFeat.timelineObject.rollTo(True) sweepFeat.path = path tl.moveToEnd() vp.fit() ui.messageBox('After replacement') except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc())) def initSweep(): app: adsk.core.Application = adsk.core.Application.get() des: adsk.fusion.Design = app.activeProduct root: adsk.fusion.Component = des.rootComponent profSkt: adsk.fusion.Sketch = root.sketches.add( root.yZConstructionPlane ) profSkt.sketchCurves.sketchCircles.addByCenterRadius( adsk.core.Point3D.create(0, 0, 0), 1.0 ) pathSkt: adsk.fusion.Sketch = root.sketches.add( root.xYConstructionPlane ) pnts: adsk.core.ObjectCollection = adsk.core.ObjectCollection.create() pnts.add(adsk.core.Point3D.create(0, 0, 0)) pnts.add(adsk.core.Point3D.create(5, 1, 0)) pnts.add(adsk.core.Point3D.create(6, 4, 3)) pnts.add(adsk.core.Point3D.create(7, 6, 6)) pathSkt.sketchCurves.sketchFittedSplines.add(pnts) path: adsk.fusion.Path = root.features.createPath( pathSkt.sketchCurves.sketchFittedSplines[0] ) sweeps: adsk.fusion.SweepFeatures = root.features.sweepFeatures sweepIpt: adsk.fusion.SweepFeatureInput = sweeps.createInput( profSkt.profiles[0], path, adsk.fusion.FeatureOperations.NewBodyFeatureOperation ) sweeps.add(sweepIpt)

It may be a good idea to check if the shape of the path can be replaced in the GUI.

Re: SweepFeature path access errors

kandennti — Wed, 06 Apr 2022 01:15:49 GMT

@codereclaimers .

I made a mistake.
Indeed, in the case of Sweep, where the Path is an error that has been deleted, changing the Path was an error.