[Gzz-commits] manuscripts/xupdf article.rst

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    manuscripts
Changes by:     Tuomas J. Lukka <address@hidden>        03/02/14 07:04:56

Modified files:
        xupdf          : article.rst 

Log message:
        Reorging

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/xupdf/article.rst.diff?tr1=1.94&tr2=1.95&r1=text&r2=text

Patches:
Index: manuscripts/xupdf/article.rst
diff -u manuscripts/xupdf/article.rst:1.94 manuscripts/xupdf/article.rst:1.95
--- manuscripts/xupdf/article.rst:1.94  Fri Feb 14 04:53:52 2003
+++ manuscripts/xupdf/article.rst       Fri Feb 14 07:04:56 2003
@@ -86,11 +86,10 @@
 upon traversing
 a link, the view fluidly animates to the target, while the
 originating document remains visible. 
-We use directed but bidirectional links to retain the left-right
-relationships between nodes.
 
 We have developed new user interface techniques 
-to facilitate this interface, which together:
+to facilitate this type of interface, which are especially
+effective when used in combination.
 
 - break lines: the buoy is actually a torn-off piece of the whole other end of 
the link!
 
@@ -103,6 +102,9 @@
 fragments of the linked-to documents (called buoys)
 floating near the anchors in the article.. 
 
+We use directed but bidirectional links to retain the left-right
+relationships between nodes.
+
 The individual nodes use fisheye
 
 The user interface techniques have been made possible
@@ -115,7 +117,7 @@
 Introduction
 ============
 
-In many hypertext systems today, following a link means a disruptive change
+In several hypertext systems today, following a link means a disruptive change
 in the user's workflow, replacing the current context with an
 entirely different one.
 The reason for this is that most systems still use the paradigm 
@@ -125,13 +127,16 @@
 existing window.
 Alternatives, such as replacing part of text (XXX antont's reference),
 are not very popular nor intuitive... [XXXref]
+Improving user orientation through user interface improvements has 
+recently received much attention.
 
-There have been much work on improving user orientation.
-One approach is to embed information about the destination in the links.
-Link titles are now a standard HTML feature (at least since version 2.0) and
-fluid links [zellweger98fluid]_ take the concept further by
+One approach is to display information about the destinations of the links.
+Browsers' status lines or tooltips show the URL or the HTML link title of the 
link
+that the mouse is currently over.
+Fluid links [zellweger98fluid]_ take the concept further by
 allowing the user to see gradually more and more target context 
 before following a specific link. 
+
 Hypercept [milgram99hypercept]_ provides a cue of local structure 
 by animating the transition from the current document to a linked 
 document in different ways depending on the structural relationship
@@ -139,10 +144,13 @@
 
 .. XXX: behaviour, structural role
 
-Another approach is to show the context directly in the view layout.
+Another approach is to treat the local hypertext structure as a graph,
+and visualize it as such.
 Focus+context views of the web, as proposed by Mukherjea and Hara 
-[mukharjea97fcwww]_, provide overview diagrams of the linking strucure
+[mukharjea97fcwww]_ and Munzner and Burchard[fc-3dhyperbolic]_, 
+provide overview diagrams of the linking strucure
 of web pages with important nodes emphasized.
+
 The Pad++ browser [fc-zooming]_ records history of the visited pages
 as a tree with nodes showing complete pages.
 The focused page is shown at a larger scale and the user can
@@ -151,34 +159,23 @@
 
 ..  - long pages get scrollbars
 
-While focus+context views of the linking relationships provide good overview,
-the interconnections of documents are deeper.
-Nelson's as of yet unimplemented transpointing windows [XXXref 1979] 
+Nelson's transpointing windows [XXXref 1979] 
 show connections crosscutting the view hierarchy 
 between relevant parts of documents.
 This form of annotation is often used on images: 
 a label is placed on the margin and a line is drawn to the relevant
-point in the image.
+point in the image. XXX See fig.XXX
 
 Free form 'digital ink' annotation 
 (e.g., XLibris [schilit98digital]_, iMarkup[XXref]) 
-is currently the closest thing to cross-cutting connections,
-because that's what users do with them. 
-However, document authors cannot anticipate the information 
-needs of all readers, so the user also needs a way to make
-connections between multiple documents.
-XLibris automatically searches for pages containing contant similar
+allow cross-cutting connections inside a single document.
+The XLibris system also
+searches for pages containing contant similar
 to what the user underlined or circled on a page, 
 and suggests links to the related pages as thumbnails in the margin.
 
-
 In this article, we take the ideas seen in the above references
-a step further. 
-Modern graphics accelerators enable, even on commodity hardware,
-several visual effects that 5 years ago were only possible on expensive
-graphics workstations. 
-We present a number of user interface technologies that are now possible
-on typical hardware.
+a logical step further. 
 These techniques together make it possible to implement a 
 new focus+context user interface with two important features.
 First, all connected information is visible in fine detail 
@@ -197,6 +194,13 @@
 and animating a document fragment as a torn-off piece of the whole;
 and unique background textures for visualising the identity
 of the documents.
+
+Modern graphics accelerators enable, even on commodity hardware,
+several visual effects that 5 years ago were only possible on expensive
+graphics workstations. 
+We present a number of user interface technologies that are now possible
+on typical hardware.
+
 
 We present an example application that shows PDF documents
 with connections and annotations using the new techniques.