[Gzz-commits] gzz/Documentation/Manuscripts/Irregu irregu.tex

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    gzz
Changes by:     Tuomas J. Lukka <address@hidden>        02/11/12 08:32:09

Modified files:
        Documentation/Manuscripts/Irregu: irregu.tex 

Log message:
        More discussion written out

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/Documentation/Manuscripts/Irregu/irregu.tex.diff?tr1=1.25&tr2=1.26&r1=text&r2=text

Patches:
Index: gzz/Documentation/Manuscripts/Irregu/irregu.tex
diff -u gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.25 
gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.26
--- gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.25        Tue Nov 12 
07:35:14 2002
+++ gzz/Documentation/Manuscripts/Irregu/irregu.tex     Tue Nov 12 08:32:09 2002
@@ -104,7 +104,7 @@
 
 the viewports to the 
 
-One practical reason: efficiency
+Practical reasons: efficiency, ease of implementation
 
 all 
 
@@ -174,6 +174,8 @@
 
 Saito, Takahashi -- *the* reference (Image-space algorithm) - Computer 
Graphics Vol24 no4
 
+CARTOONS, SPEECH BUBBLES and FRAMES!!
+NEWSPAPERS, TORN ARTICLES
 
 Contribution of this article
 
@@ -185,21 +187,41 @@
 
 \section{Tearing}
 
-- basic model: rectangular paper, of which a convex region is shown
+In this section, we introduce the use of non-photorealistic rough, torn shapes 
instead 
+of the usual rectangular, clipped and framed viewports.
+
+We shall define viewport as a region of screen, which shows a region
+from a rectangular virtual {\em canvas}.
+This region is usually forced to be rectangular and parallel to the bounding 
rectangle of the canvas.
+(we shall not be concerned with occlusion by other graphical objects: we shall 
only
+concentrate on the basic characteristics of the viewport).
+
+- fundamental change of model: instead of *framing* the region of paper, 
+  we *tear* it out of the paper.
+
+In the following sections,
 
 \subsection{Rationale ``Why?''}
 
-A smooth rectangular or elliptical frame can make small viewports seem 
claustrophobic. 
+A smooth rectangular or elliptical frame with scrollbars
+can make small viewports seem claustrophobic. 
 One reason for this is that the frame is often visually too small for its 
contents
 to yield a balanced graphical design. For example, 
 
-- fundamental change of model: instead of *framing* the region of paper, 
-  we *tear* it out of the paper.
+Additionally, if looking at ``printed matter'' through the viewport,
+the frame outside the canvas and graphical frames inside the canvas can make 
the display
+much less clear.
 
 The torn edge separates itself visually from the content, alleviating
-the ...
+the visual tension...
+
+The irregularity of the edge allows a some of the context of the viewport to 
be partially
+seen.
+
+Focus+context
+
+Fourier viewpoint
 
-% - moving the tear-away area cannot be done with real paper\\
 
 Considered from a purely physical viewpoint, the tearout is not really
 a good metaphor\cite{kuhn91formalization}: