Autodesk Inventor

[#1]

I am making a C# Add-in, I need to create a plane from a selected face, I am using the follwing code, but I am getting stuck. Can you Help me?

if (((mApp.ActiveDocument != null)))
{

if ((mApp.ActiveDocument.DocumentType == DocumentTypeEnum.kPartDocumentObject))
{

PartComponentDefinition oPartCom = mApp.ActiveDocument as PartComponentDefinition;
PartDocument oDoc = mApp.ActiveDocument as PartDocument;

if ((oDoc.SelectSet[1]) is Face)
{

System.Windows.Forms.MessageBox.Show("You just selected a surface", "Surface Evaluator");

WorkPlane oPlane = oDoc.SelectSet[1] as WorkPlane; //HERE I SELECT THE WORKPLANE FROM THE FACE

//HERE I USE IT TO CREATE MY REAL WORKPLANE TO USE THE SKETCH BUT THERE IS A PROBLEM

WorkPlane oWorkPlane = oDoc.ComponentDefinition.WorkPlanes.AddByPlaneAndOffset(oPlane, 1.0);

//THIS PART SHOULD WORK AFTERWARDS

PlanarSketch oSketch = oDoc.ComponentDefinition.Sketches.Add(oWorkPlane, false);

TransientGeometry oTG = mApp.TransientGeometry;

ObjectCollection oFitPoints = mApp.TransientObjects.CreateObjectCollection();

PartComponentDefinition oCompDef = default(PartComponentDefinition);
oCompDef = oDoc.ComponentDefinition;
Camera oCamera = mApp.ActiveView.Camera;

....

}

}

THANK YOU GUYS!!!

[#2]

You could get better reponse if you post this in the inventor customisation section.

You mention there is a problem... when you repost, also mention what the problem is that you are encountering.

[#3]

The problemis that the plane oPlane is pass as null to when I used the selection (in this case a face) oDoc.SelectSet[1] as WorkPlane.

Thanks in advance