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Mesh Mods VB .NET Sample

Overview

On the start of the application OnFormLoad event handler requests notifications for the selection events by setting WantSelectionEvent property of KernelCAD Context to true

When user selects a set of vertices using context menu or key commands the application receives OnKernelCADEvent call. Notice the checks in the OnKernelCADEvent that the call is addressed to this handler.

The line

m_iList = e.param1

stores the vertex list passed by the event as IList for later use.

When user cliks the Apply button OnApply handler iterates through the list and modifies coordinates of each vertex using IVertex interface.

Notice the important iMeshMods.FixupNormals() call. It recalculates normals to the surface to keep lighting of the modified surface realistic.

IMeshMods interface is queried from the only source in the case, which is the m_iList  interface. This is enabled by the KernelCAD component prior to calling the event handler.