/[gzz]/manuscripts/Paper/paper.tex
ViewVC logotype

Diff of /manuscripts/Paper/paper.tex

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.70 by jvk, Sun Mar 30 16:01:51 2003 UTC revision 1.71 by jvk, Sun Mar 30 17:39:21 2003 UTC
# Line 868  XXX: note: maximum saturation of light c Line 868  XXX: note: maximum saturation of light c
868  For readability, we only use colors with the CIE $L^*$ value over 80.  For readability, we only use colors with the CIE $L^*$ value over 80.
869  Note that the display gamma interacts with the lightness computation:  Note that the display gamma interacts with the lightness computation:
870  we have adjusted the computations for a display gamma of 2.2,  we have adjusted the computations for a display gamma of 2.2,
871  which is typically the default (with gamma correction 1.0) in PC systems.  which is typically the default %(with gamma correction 1.0)
872    in PC systems.
873  %Note that for correct computation of the lightness,  %Note that for correct computation of the lightness,
874  %it is essential that the display gamma is properly adjusted  %it is essential that the display gamma is properly adjusted
875  %for linear (XXX: usually around gamma 2) RGB reproduction.  %for linear (XXX: usually around gamma 2) RGB reproduction.
# Line 1031  the palette colors. Line 1032  the palette colors.
1032  % the gradients and to diminish the area from which the features  % the gradients and to diminish the area from which the features
1033  % of a single basis texture are extracted.  % of a single basis texture are extracted.
1034    
1035  Because some basis texture have blurrier edges than others,  Because some basis textures have blurrier edges than others,
1036  the output scalings need to be adjusted depending on the basis  the output scalings need to be adjusted depending on the basis
1037  textures selected.  textures selected.
1038    
# Line 1134  if the gamma is correct but the textures Line 1135  if the gamma is correct but the textures
1135  \end{figure*}  \end{figure*}
1136    
1137  \section{Experiences, evaluation}  \section{Experiences, evaluation}
   
1138  It can be argued that  It can be argued that
1139  the backgrounds clutter the display  the backgrounds clutter the display
1140  visually, making the user interface more confusing,  visually, making the user interface more confusing,
1141    and may not even be helpful.
1142    Indeed, many aspects of the system are a compromise between
1143    recognizability and some other goal such as readability, rendering
1144    performance, or a less well-defined goal such as user comfortability.
1145    
1146    Overall, we feel that the backgrounds can greatly improve user orientation,
1147    enabling more efficient views to hyperstructured content, and
1148    therefore the benefits outweigh the costs.
1149    In the following, we evaluate the implications and tradeoffs
1150    of different
1151    aspects in the use of unique backround textures.  
1152    
1153  \subsection{Overall appearance of the resulting textures}  \subsection{Overall appearance of the resulting textures}
1154    
1155  %XXX: Furthermore, because the texture appearance has no correlation  The most important point is generating the backgrounds is that
1156  %with the document content,  the texture appearance should have no correlation with any attribute
1157  %the textures of any two important files are similar only by chance.  or content of the document
1158    so that the textures of any two important files
1159    are similar only by chance.
1160    Having any semantics encoded in the appearance of the textures
1161    would prohibit orthogonal structures with differing semantics
1162    of the same content.
1163    
1164    Zoomability:
1165    
1166  %The background textures should be be recognizable at different scales.  %The background textures should be be recognizable at different scales.
1167  Although texture perception is scale-independent to some extent,  Although texture perception is scale-independent to some extent,

Legend:
Removed from v.1.70  
changed lines
  Added in v.1.71

savannah-hackers-public@gnu.org
ViewVC Help
Powered by ViewVC 1.1.26