/[gzz]/gzz/Documentation/Manuscripts/Irregu/irregu.tex
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revision 1.28 by tjl, Tue Nov 12 13:42:12 2002 UTC revision 1.29 by tjl, Tue Nov 12 13:43:26 2002 UTC
# Line 208  can make small viewports seem claustroph Line 208  can make small viewports seem claustroph
208  One reason for this is that the frame is often visually too small for its contents  One reason for this is that the frame is often visually too small for its contents
209  to yield a balanced graphical design. For example,  to yield a balanced graphical design. For example,
210    
211    Also, because the frame moves differently from its content, it is an extra ``object''
212    that the user's visual system must track.
213    
214  Additionally, if looking at ``printed matter'' through the viewport,  Additionally, if looking at ``printed matter'' through the viewport,
215  the frame outside the canvas and graphical frames inside the canvas can make the display  the frame outside the canvas and graphical frames inside the canvas can make the display
216  much less clear.  much less clear.
# Line 215  much less clear. Line 218  much less clear.
218  The torn edge separates itself visually from the content, alleviating  The torn edge separates itself visually from the content, alleviating
219  the visual tension...  the visual tension...
220    
221    Need to maintain illusion: ``we see a piece of the canvas'', not ``we see the canvas through
222    a hole''.
223    If edge does not ripple, claustrophobia comes back! Again, shaped thing PLACED on top of canvas,
224    not part of canvas!
225    
226  The irregularity of the edge allows a some of the context of the viewport to be partially  The irregularity of the edge allows a some of the context of the viewport to be partially
227  seen.  seen.
228    
# Line 222  Focus+context Line 230  Focus+context
230    
231  Fourier viewpoint  Fourier viewpoint
232    
 If edge does not ripple, claustrophobia comes back! Again, shaped thing PLACED on top of canvas,  
 not part of canvas!  
   
233  From a purely physical viewpoint the tearout is not really  From a purely physical viewpoint the tearout is not really
234  a good metaphor\cite{kuhn91formalization}:  a good metaphor\cite{kuhn91formalization}:
235  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.

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