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  • David Gobbi's avatar
    Add a vtkImagePointIterator class. · f7fb4c66
    David Gobbi authored
    Given an image, the vtkImagePointIterator will iterate through the
    image point-by-point and efficiently provide the current position in
    both (x,y,z) data coordinates and (i,j,k) structured coordinates. If
    a stencil is provided, then it is possible to check whether the current
    point is in the stencil.
    
    The superclass, vtkImagePointDataIterator, iterates through the data
    span-by-span for efficiency.  For each span, it provides the point id
    for the beginning of the span, and the length of the span.  This makes
    it useful for iterating through the point attributes when the actual
    point coordinates are not important.
    f7fb4c66