MeshObject Member Functions
Purpose: This function reinitialize the data stored in the mesh object. In particular,
it deletes the display list if one existed.
Postcon: displayList = -1.
Purpose: This function generates a mesh which represents a 3D segmentation. This
operation is accomplished by retrieving the voxel data from the VoxelData
structure and then invoking a VTK isosurface extraction algorithm.
Purpose: This function displays the mesh and 3D crosshairs in the window.