Inventor 2025 API - How to use AddBySilhouette() to add a Face to a Planar Sketch if they are not on the same plane

rwemmerLHAEW — Fri, 24 Jan 2025 19:44:41 GMT

I have some code where I am trying to add a Face (or Edge) to a Sketch. I keep getting errors and I believe the issue is that they are not on the same plane and I think I need to do some sort of projection to make this occur.

Also, I hope you will forgive me because my code is in C#

public void ProjectHoleFaceToSketch(PlanarSketch sketch, Face face) { if (sketch == null || face == null) throw new ArgumentNullException("Sketch or face is null."); try { var failed = false; try { // this does not work. var faceVertices = face.Vertices; var proximityPoint = faceVertices[1].Point; // Use any vertex as a starting point sketch.AddBySilhouette(face, proximityPoint); } catch (Exception ex) { failed = true; _logger.LogError(ex, "Failed to project face onto sketch."); } if (failed == true) { try { //this also does not work var plane = sketch.PlanarEntity as Plane; double[] rootPoint = new double[3]; double[] normal = new double[3]; plane.GetPlaneData(ref rootPoint, ref normal); var proximityPoint = _application.TransientGeometry.CreatePoint(rootPoint[0], rootPoint[1], rootPoint[2]); } catch (Exception ex) { _logger.LogError(ex, "Failed to project face onto sketch."); } } } catch (Exception ex) { _logger.LogError(ex, "[SketchService][ProjectHoleFaceToSketch] Failed to project edges onto sketch."); } }

This results in the following error:

The parameter is incorrect. (0x80070057 (E_INVALIDARG)) System.ArgumentException: The parameter is incorrect. (0x80070057 (E_INVALIDARG)) at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Object[] aArgs, Boolean[] aArgsIsByRef, Int32[] aArgsWrapperTypes, Type[] aArgsTypes, Type retType) at Inventor.PlanarSketch.AddBySilhouette(Face Face, Point ProximityPoint) at TeakIsleInventor.AddIn.Services.Inventor.SketchService.ProjectHoleFaceToSketch(PlanarSketch sketch, Face face) in c:\...\\Inventor\SketchService.cs:line 692

Re: Inventor 2025 API - How to use AddBySilhouette() to add a Face to a Planar Sketch if they are not on the same plane

C_Haines_ENG — Wed, 29 Jan 2025 23:37:07 GMT

I believe you can't directly project a face, and you must cycle through each edge of that face and project them separately. I don't code in C# but maybe you can get the idea from this iLogic code:

Dim oDoc As PartDocument = ThisDoc.Document Dim oSketch As Sketch = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kSketchObjectFilter, "Select Sketch") Dim oFace As Face = ThisApplication.CommandManager.Pick(SelectionFilterEnum.kPartFaceFilter, "Select Face") For Each oEdge As Edge In oFace.Edges oSketch.AddByProjectingEntity(oEdge) Next

topic Re: Inventor 2025 API - How to use AddBySilhouette() to add a Face to a Planar Sketch if they are not on the same plane in Inventor Programming Forum

Inventor 2025 API - How to use AddBySilhouette() to add a Face to a Planar Sketch if they are not on the same plane

Re: Inventor 2025 API - How to use AddBySilhouette() to add a Face to a Planar Sketch if they are not on the same plane