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revision 1.99 by jvk, Sat Nov 30 08:16:45 2002 UTC revision 1.100 by tjl, Sat Nov 30 08:17:09 2002 UTC
# Line 314  e.g.~Fig.\ref{figbreakout}. Line 314  e.g.~Fig.\ref{figbreakout}.
314    
315  % Fourier viewpoint  % Fourier viewpoint
316    
317    One thing that we hope to achieve is that instead of having to perceive
318    two objects, the ``hole'' of the viewport and the the canvas behind,
319    the user would have to perceive only the torn piece, as in Fig.~\ref{figparadigm}.
320    However, whether this can is achieved remains the subject of further study.
321    
322  Additionally, the motion of the uneven edge can be used to give the  Additionally, the motion of the uneven edge can be used to give the
323  user a cue about the motion of the viewport, and  user a cue about the motion of the viewport, and
324  the style of the ripples can give a cue about the scale of the view.  the style and size of the ripples can give a cue about the scale of the view.
325    
326    
327  % The important difference is that  % The important difference is that
# Line 341  the style of the ripples can give a cue Line 346  the style of the ripples can give a cue
346    
347  % Focus+context  % Focus+context
348    
349  From a purely physical viewpoint the tearout is not really  Now, from a purely physical viewpoint the tearout is not really
350  a good metaphor\cite{kuhn91formalization}:  a good metaphor\cite{kuhn91formalization}:
351  a real torn piece of paper cannot change the place from where it is torn, with the edges rippling etc.  a real torn piece of paper cannot change the place from where it is torn, with the edges rippling etc.
352  However, the idea of break lines in technical drawings is well  However, the idea of break lines in technical drawings is well

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