Delete Objects with Fusion 360 API

By Xiaodong Liang

All objects that can be deleted support the the deleteMe method. The usage is  very straightforward. Get the object and call deleteMe.

I found a forum post that one customer failed to delete the object which is within the generic object collection.

http://forums.autodesk.com/t5/api-and-scripts/how-do-i-delete-a-sketch-curve-line-arc-etc/m-p/6394526#U6394526

but, it looks working well at my side. The following code demo three scenarios:

1. delete selected objects

2. delete the specific object in the collection created by UI

3. delete the specific object in the generic collection (e.g. in this code, the collection is the offset curves collection)

def deleteObjectsOfSelection():

    app = adsk.core.Application.get()
    try:      
        #assume some entities are selected
        for eachObj in app.userInterface.activeSelections:
            if eachObj.isValid:
                #get the selected entity of the selection.                
                #call deleteMe
                eachObj.entity.deleteMe()
    except:
        ui = app.userInterface
        if ui:
            ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))  
            

def deleteItemOfObjCollectionItem():

    app = adsk.core.Application.get()
    
    try:
        #current product            
        product = app.activeProduct
        #current component
        rootComp = product.rootComponent 
        #get sketches collection
        sketches = rootComp.sketches
        #get one sketch 
        if sketches.count > 0:
            oneSketch = sketches.item(0)
            oneSketch.deleteMe()
       
    except:
        ui = app.userInterface
        if ui:
            ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))             


def deleteItemOfGenericCollection():
    app = adsk.core.Application.get()
    ui = app.userInterface
    
    try:
      
        
        #select a sketch        
        selectedObjs = app.userInterface.activeSelections
        if selectedObjs.count == 0:
           ui.messageBox('no object is selected in the document!')
           return
        
        oneObj = selectedObjs.item(0)
        if oneObj.entity.objectType != 'adsk::fusion::Sketch':
             print( oneObj.entity.objectType)
             ui.messageBox('not a sketch!')
             return        
        sketchIn = oneObj.entity 
        
        sketchIn.isComputeDeferred = True
        
        curvesIn = sketchIn.sketchCurves
        if curvesIn.count == 0:
             ui.messageBox('no curve in the sketch!')
             return
             
        curvesForOffset = adsk.core.ObjectCollection.create() 
        offsetCurves = adsk.core.ObjectCollection.create()
        
        curvesForOffset = sketchIn.findConnectedCurves(curvesIn.item(0));
        offsetCurves = sketchIn.offset(curvesForOffset, adsk.core.Point3D.create(100,100,100), 2.0);
        
        if offsetCurves == None or offsetCurves.count ==0:
             ui.messageBox('no offset curves are created!')
             return
        
        transform = adsk.core.Matrix3D.create();
        
        #current product            
        product = app.activeProduct
        #current component
        rootComp = product.rootComponent 
        #get sketches collection
        sketches = rootComp.sketches
        
        #create a new sketch 
        sketchOut = sketches.add(rootComp.xYConstructionPlane)
        sketchIn.copy(offsetCurves, transform, sketchOut);
        
        #delete the offseted curves in sketchIn
        for eachCurve in offsetCurves:
            eachCurve.deleteMe()
        
        sketchIn.isComputeDeferred =False 
       
    except:
        ui = app.userInterface
        if ui:
            ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))