/[gzz]/manuscripts/FutureVision/vision.rst
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revision 1.125 by tjl, Thu Sep 18 17:51:23 2003 UTC revision 1.126 by benja, Thu Sep 18 17:57:50 2003 UTC
# Line 362  metadata also in RDF. Line 362  metadata also in RDF.
362  4.2.1 RDF Focus+Context views  4.2.1 RDF Focus+Context views
363  """""""""""""""""""""""""""""  """""""""""""""""""""""""""""
364    
365  In this section, we describe our visualizations of RDF XXX  In this section, we describe our basic visualization of RDF
366    as an easily browsable hyperstructure,
367  - our 'basic hyperstructure' visualization of rdf  a focus+context (`Furnas 1985`_) view of the graph.
368    The *focus* at any point is an RDF node, which is shown
369    in the middle of the screen; the *context* is the nodes
370    connected to this node, shown around the focus.
371    
372    .. figure:: carli-small.png
373    
374       Figure XXX: Screenshot of RDF browser prototype.
375       This figure shows the same structure as Figure 1 XXXlink.
376       (`Larger image`__)
377    
378       __ carli.png
379    
380    No attempt is made at presenting the whole graph
381    in a two-dimensional layout, or at avoiding overlapping lines,
382    as many graph-layout algorithms do. We simply show the current
383    focus in the center, the connected nodes on an ellipse around
384    the center, the items connected to *those* nodes a bit further out,
385    and so on [#disorientation]_.
386    
387  - wheel: f+c (see fig.1)  - wheel: f+c (see fig.1)
388    
# Line 926  Notes Line 944  Notes
944      that is not part of the medium of presentation.      that is not part of the medium of presentation.
945        
946  .. [#fig1note] This visualization is a focus+context (`Furnas 1985`_)  .. [#fig1note] This visualization is a focus+context (`Furnas 1985`_)
947     view of the item graph.     view of the item graph. See section 4.2.1 XXXlink for details.
   
    No attempt is made at presenting the whole graph  
    in a two-dimensional layout, or at avoiding overlapping lines,  
    as many graph-layout algorithms do. We simply show the current  
    items in the center, the linked items on an ellipse around  
    the center, the items linked to the linked items around the  
    items they are linked to, and so on. [XXX less linkedy-linked]  
   
    As the current item and the items related to it are always  
    in the foreground, we hope that this view will not  
    cause disorientation. However, we have not done any  
    user-testing, yet.  
948    
949  .. [#notalwayseverything] You will not always want to see  .. [#notalwayseverything] You will not always want to see
950     *all* types of information, though. For example,     *all* types of information, though. For example,
# Line 1004  Notes Line 1010  Notes
1010     recommends for discussing the structure used in ZigZag(TM),     recommends for discussing the structure used in ZigZag(TM),
1011     (Nelson's trademark).     (Nelson's trademark).
1012    
1013    .. [#disorientation] As the focus and the nodes connected to it
1014       are always in the foreground, we hope that this view will not
1015       cause disorientation. However, we have not done any
1016       user-testing, yet.
1017    
1018  ..  [#libvob-speed] For some changes (scrolling, zooming), the scene  ..  [#libvob-speed] For some changes (scrolling, zooming), the scene
1019      need not be regenerated but only the coordinate system      need not be regenerated but only the coordinate system

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