/[gzz]/gzz/Documentation/Manuscripts/Irregu/irregu.tex
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revision 1.63 by tjl, Wed Nov 20 15:26:24 2002 UTC revision 1.64 by tjl, Wed Nov 20 19:22:20 2002 UTC
# Line 121  of Microsoft Office. Line 121  of Microsoft Office.
121  in all cases, the irregular shape of the viewport matches the shape of an  in all cases, the irregular shape of the viewport matches the shape of an
122  actual irregular object  actual irregular object
123    
 ---  
   
 In diagrams and engineering drawings, tearing...  
 has been used to show that an object extends beyond  
 the part that is drawn.  
   
   
 ---  
   
124  Windowing systems usually non-photorealistic. Clearer, etc.  Windowing systems usually non-photorealistic. Clearer, etc.
125  However, the understanding of non-photorealism has been developing  However, the understanding of non-photorealism has been developing
126  only recently... more photorealism could be distracting... too much  only recently... more photorealism could be distracting... too much
# Line 182  for example, Line 173  for example,
173  \centering  \centering
174  \fbox{\vbox{\vskip 3in}}  \fbox{\vbox{\vskip 3in}}
175  \caption{  \caption{
176    \label{fig-breakout}
177  a) Break out lines, b) a break out section.  a) Break out lines, b) a break out section.
178  Freehand lines have been long used in engineering drawings  Freehand lines have been long used in engineering drawings
179  to indicate that an object extends beyond the shown part.  to indicate that an object extends beyond the shown part.
# Line 190  to indicate that an object extends beyon Line 182  to indicate that an object extends beyon
182    
183  In this article, we apply {\em break lines} or {\em break out section}s  In this article, we apply {\em break lines} or {\em break out section}s
184  from technical drawing to viewports.  from technical drawing to viewports.
185    Break lines or break out sections (see Fig.~\ref{fig-breakout})
186    are freehand lines drawn to indicate
187    that an object extends beyond the drawn part.
188    
189  Instead of framing a part viewport to the canvas,  Instead of framing a part viewport to the canvas,
190  we tear a part of the canvas non-photorealistically.  we tear a part of the canvas non-photorealistically.
191  In the following sections, we first describe the reasons and design issues and  In the following sections, we first describe the reasons and design issues and

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