Every part has 3 default workplanes.
You can add sketches to them programatically using this function:
// Adds a sketch to one of the three standard workplanes in a part
bool AddSketchToStdWorkplane (CComPtr<PlanarSketch>& pNewSketch,
CComPtr<PartComponentDefinition>& pPartCompDef,
const wchar_t* const pszNewSketchName,
const UINT ikWorkPlaneNumber) // gikXIndex, gikYIndex, gikZIndex
{
if ((pszNewSketchName == nullptr) || (wcslen(pszNewSketchName) == 0)) {
gLogger.Printf (ekErrMsg,L"ASTSWP, workplane name incorrect") ;
return false;
}
CComPtr<WorkPlane> pWorkPlane;
bool bOk = GetStdWorkPlaneByIndex(pWorkPlane, ikWorkPlaneNumber, pPartCompDef);
if (!bOk) {
return false;
}
// Get the list of sketches
CComPtr<PlanarSketches> pSketchList ;
HRESULT hRes = pPartCompDef->get_Sketches (&pSketchList);
if (FAILED(hRes)) {
ShowCOMError (hRes,L"AddSketchToWorkplane, could not get planar sketches") ;
return false;
}
hRes = pSketchList->Add (_variant_t((IDispatch *)pWorkPlane),VARIANT_FALSE,&pNewSketch) ;
if (FAILED(hRes)) {
ShowCOMError (hRes,L"AddSketchToWorkplane, could not get planar sketches") ;
return false;
}
pNewSketch->put_Name (CComBSTR (pszNewSketchName)) ;
return true;
}
The last part of the code above shows you how to get the name of a sketch using get_Name. The following diagram shows the indices to get the standard workplanes:
You can also use: gikXIndex, gikYIndex, gikZIndex
This code...
// Create a part
CComPtr<PartDocument> pPartDoc;
bool bOk = CreateNewPart(GetInvAppPtr(),pPartDoc,L"Test");
if (!bOk) {
return;
}
CComPtr<PartComponentDefinition> pPartDef;
HRESULT hRes = pPartDoc->get_ComponentDefinition(&pPartDef);
if (FAILED(hRes) || (pPartDef==nullptr)) {
return;
}
for (UINT i = gikXIndex; i <= gikZIndex; i++) {
// Add a sketch
CString kcsSketchName;
kcsSketchName.Format(L"Sketch%d", i);
CComPtr<PlanarSketch> pNewSketch;
AddSketchToStdWorkplane(pNewSketch, pPartDef, kcsSketchName, i);
AddCircleToSketch(pNewSketch, i * 1, i * 2, i * 3);
}
...creates these three sketches...
See also this page.