creating a Path from a Sketch that was projected on a surface always fail (C++)

[meeloo]

Hi,

I'm trying to create a Path from the sketch resulting of a call to projectToSurface.

auto fret_profile = component->sketches()->add(component->yZConstructionPlane());
auto profile = fret_profile->projectToSurface(faces, curves, AlongVectorSurfaceProjectType, component->zConstructionAxis())[0];
auto path = Path::create(profile, connectedChainedCurves);
auto input = component->features()->sweepFeatures()->createInput(fret_wire_profile, path, NewBodyFeatureOperation);

however the Path is always null and a call to getLastError gives me the following string:

InterValidationError : 

Utils::getObjectPath(obj.get(), objPath, nullptr, contextPath)

Please note that doing it in the application does work right away (I can create the sweep from the sketches my script creates).

I've tried many things to fix this and programatically create a valid Path from my projected sketch but came empty handed. The sketch I try to create the Path with is purple which I guess is because it's the product of the projectToSurface call.

Is there anything I can do to fix this?

Thanks!

[meeloo]

I got it working by dynamically casting each sketchCurve and extracting the 3D nurbs from the SketchArc and SketchElipticalArc by hand. It's quite cumbersome and I'm hoping there is a better and simpler method...

[BrianEkinsADSK]

It works for me.  Attached is the model I tested with and below is an example of the result and the code.

void ProjectTest()
{
	app = Application::get();
	ui = app->userInterface();

    Ptr<Design> des = app->activeProduct();
    Ptr<Component> root = des->rootComponent();

    // Have the sketch selected and package the curves into an array.
    Ptr<Selection> selection = ui->selectEntity("Select the sketch to Project", "Sketches");
    Ptr<Sketch> skToProj = selection->entity();
    Ptr<SketchCurves> skCurves = skToProj->sketchCurves();
    std::vector<Ptr<Base>> curves(skCurves->count());
    for (int i=0; i < skCurves->count(); ++i)
    {
        curves[i] = skCurves->item(i);
    }

    // Have the face selected and packet it into an array.
    selection = ui->selectEntity("Select the face to project to", "Faces");
    Ptr<BRepFace> faceTarget = selection->entity();
    std::vector<Ptr<BRepFace>> faces(1);
    faces[0] = faceTarget;

    // Create a new sketch to contain the projected curve.
    Ptr<Sketch> newSketch = root->sketches()->add(root->xYConstructionPlane());

    // Project the curves onto the face.
    std::vector<Ptr<SketchEntity>> result;
    result = newSketch->projectToSurface(faces, curves, SurfaceProjectTypes::AlongVectorSurfaceProjectType, root->zConstructionAxis());

    // Package the results into an ObjectCollection.
    Ptr<ObjectCollection> curveColl = ObjectCollection::create();
    for (Ptr<SketchCurve> curve : result)
    {
        curveColl->add(curve);
    }

    // Create a path.
    Ptr<Path> path = Path::create(curveColl, ChainedCurveOptions::connectedChainedCurves);

    // Create a construction plane at the end of the path.
    Ptr<ConstructionPlaneInput> planeInput = root->constructionPlanes()->createInput();
    planeInput->setByDistanceOnPath(path, ValueInput::createByReal(0));
    Ptr<ConstructionPlane> profPlane = root->constructionPlanes()->add(planeInput);

    // Create a sketch, draw a circle, and get the resulting profile.
    Ptr<Sketch> profSketch = root->sketches()->add(profPlane);
    Ptr<SketchCircle> circle = profSketch->sketchCurves()->sketchCircles()->addByCenterRadius(Point3D::create(0, 0, 0), 1.0);
    Ptr<Profile> prof = profSketch->profiles()->item(0);

    // Create a sweep feature.
    Ptr<SweepFeatures> sweepFeatures = root->features()->sweepFeatures();
    Ptr<SweepFeatureInput> sweepInput = sweepFeatures->createInput(prof, path, FeatureOperations::CutFeatureOperation);
    Ptr<SweepFeature> sweepFeature = sweepFeatures->add(sweepInput);
}

[BrianEkins]

It works for me.  Attached is the model I tested with and below is an example of the result and the code.

void ProjectTest()
{
	app = Application::get();
	ui = app->userInterface();

    Ptr<Design> des = app->activeProduct();
    Ptr<Component> root = des->rootComponent();

    // Have the sketch selected and package the curves into an array.
    Ptr<Selection> selection = ui->selectEntity("Select the sketch to Project", "Sketches");
    Ptr<Sketch> skToProj = selection->entity();
    Ptr<SketchCurves> skCurves = skToProj->sketchCurves();
    std::vector<Ptr<Base>> curves(skCurves->count());
    for (int i=0; i < skCurves->count(); ++i)
    {
        curves[i] = skCurves->item(i);
    }

    // Have the face selected and packet it into an array.
    selection = ui->selectEntity("Select the face to project to", "Faces");
    Ptr<BRepFace> faceTarget = selection->entity();
    std::vector<Ptr<BRepFace>> faces(1);
    faces[0] = faceTarget;

    // Create a new sketch to contain the projected curve.
    Ptr<Sketch> newSketch = root->sketches()->add(root->xYConstructionPlane());

    // Project the curves onto the face.
    std::vector<Ptr<SketchEntity>> result;
    result = newSketch->projectToSurface(faces, curves, SurfaceProjectTypes::AlongVectorSurfaceProjectType, root->zConstructionAxis());

    // Package the results into an ObjectCollection.
    Ptr<ObjectCollection> curveColl = ObjectCollection::create();
    for (Ptr<SketchCurve> curve : result)
    {
        curveColl->add(curve);
    }

    // Create a path.
    Ptr<Path> path = Path::create(curveColl, ChainedCurveOptions::connectedChainedCurves);

    // Create a construction plane at the end of the path.
    Ptr<ConstructionPlaneInput> planeInput = root->constructionPlanes()->createInput();
    planeInput->setByDistanceOnPath(path, ValueInput::createByReal(0));
    Ptr<ConstructionPlane> profPlane = root->constructionPlanes()->add(planeInput);

    // Create a sketch, draw a circle, and get the resulting profile.
    Ptr<Sketch> profSketch = root->sketches()->add(profPlane);
    Ptr<SketchCircle> circle = profSketch->sketchCurves()->sketchCircles()->addByCenterRadius(Point3D::create(0, 0, 0), 1.0);
    Ptr<Profile> prof = profSketch->profiles()->item(0);

    // Create a sweep feature.
    Ptr<SweepFeatures> sweepFeatures = root->features()->sweepFeatures();
    Ptr<SweepFeatureInput> sweepInput = sweepFeatures->createInput(prof, path, FeatureOperations::CutFeatureOperation);
    Ptr<SweepFeature> sweepFeature = sweepFeatures->add(sweepInput);
}