Offset a projected sketch

[victoriaN4VP7]

I am trying to offset a sketch of a projected spline 

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

def run(context) :

    ui = adsk.core.UserInterface.cast(None)

    try:

        app = adsk.core.Application.get()

        ui  = app.userInterface

        design = adsk.fusion.Design.cast(app.activeProduct)

        root= design.rootComponent

        targetBody: adsk.fusion.BRepBodies= root.bRepBodies[4]

        skt: adsk.fusion.Sketch = root.sketches.add(root.xYConstructionPlane)

        skt.project(targetBody)

        SketchSel = ui.selectEntity('Select sketch to offset', 'Sketches')

        if SketchSel:

            sketchSel = SketchSel.entity

        sketch = adsk.fusion.Sketch.cast(sketchSel)

        points=adsk.core.ObjectCollection.create()

        points.add(sketch.sketchPoints)

        spline = sketch.sketchCurves.sketchFittedSplines.add(points)

        curve = sketch.findConnectedCurves(spline)

        dirPoint = adsk.core.Point3D.create(6, 0, 0)

        offsetCurves = sketch.offset(curve, dirPoint, -1)

[BrianEkins]

I'm not sure what you're trying to do since your code seems to be model dependent. Here's a modified version of your code that successfully offsets a projected curve. To use it, create a new design and create a single spherical body in the root component. Run the code, and it will project the sphere onto a sketch and then offset the projected result.

def run(context) :
    ui = adsk.core.UserInterface.cast(None)
    try:
        app = adsk.core.Application.get()
        ui  = app.userInterface
        design = adsk.fusion.Design.cast(app.activeProduct)
        root= design.rootComponent

        targetBody: adsk.fusion.BRepBodies= root.bRepBodies[0]
        skt: adsk.fusion.Sketch = root.sketches.add(root.xYConstructionPlane)
        skt.project(targetBody)
   
        dirPoint = adsk.core.Point3D.create(6, 0, 0)
        curves = adsk.core.ObjectCollection.create()
        curves.add(skt.sketchCurves[0])
        offsetCurves = skt.offset(curves, dirPoint, -1)
    except:
        if ui:
            ui.messageBox('Failed:\n{}'.format(traceback.format_exc())) 

[victoriaN4VP7]

Thank you!

This is now working, however the projected curve that I am trying to offset is made up of multiple connected spline segments. With this code only one segment of the spline is being offset.  I'm not sure how to collect all of the projected curves to offset them all. 

[nathanieltsh]

HI Hi 
i'm also having problems with the only 1 curves/lines is offseted. 
wondering if @BrianEkins and @victoriaN4VP7 have any solution?