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PlanaPlanar Ops C++ Sample

Implementation

All relevant functionality i simplemented by the PlanarOpsDlg class.

Control of the clipping plane on Show and Enable check boxes is done via the IClipPlane interface stored in the m_plane member variable. The interface is obtained the PlanarOpsDlg::GetPlane() method.

This method also obtains IAxis interface, which gives access to the location and orientation of the plane. The interface is stored in the m_iAxis member.

The main cutting operation is performed by the PlanarOpsDlg::OnCut() method on "Cut Permanently" button click. Depending on state of  the "Keep Solid.." check box the method uses either IBoolSection::Subtract() or IBoolSectionEx::Execute() methods. Notice that the second object in the operation is an abstract one, i.e. it is not a member of the model, although it is represented by ISection iSectPlane interface. iSectPlane is created in PlanarOpsDlg::CreatePlane() which creates the plane using object generator and positions it using a new IAxis interface.