[Commit] papers/xr_ols2003 api.tex,1.10,1.11 keithp.bib,1.2,1.3

[Carl Worth]

Committed by: cworth

Update of /local/src/CVS/papers/xr_ols2003
In directory home.keithp.com:/tmp/cvs-serv25756

Modified Files:
	api.tex keithp.bib 
Log Message:
Added citations for the three illusions

Index: api.tex
===================================================================
RCS file: /local/src/CVS/papers/xr_ols2003/api.tex,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -d -r1.10 -r1.11
--- api.tex	16 May 2003 15:39:14 -0000	1.10
+++ api.tex	16 May 2003 16:58:13 -0000	1.11
@@ -125,7 +125,7 @@
   \begin{center}
   \epsfxsize=1in
   \epsfbox{examples/hering}
-  \caption{Hering illusion: Radial lines positioned with XrTranslate and XrRotate}
+  \caption{Hering illusion (originally discovered by Ewald Hering in 1861)\cite{seckel}. The radial lines were positioned with XrTranslate and XrRotate}
   \label{fig:hering}
   \end{center}
 \end{figure}
@@ -202,7 +202,7 @@
   \begin{center}
   \epsfxsize=2in
   \epsfbox{examples/spiral}
-  \caption{Nested box illusion---constructed with XrMoveTo and XrRelLineTo}
+  \caption{Nested box illusion (after a figure by Al Seckel\cite{seckel}). Constructed with XrMoveTo and XrRelLineTo}
   \label{fig:spiral}
   \end{center}
 \end{figure}
@@ -289,13 +289,6 @@
   \end{center}
 \end{figure}
 
-% XXX: How do we want to attribute the illusions?
-%  I found the spiral in Al Seckel's ``The Great Book of Optical Illusions'' (Firefly Books Ltd., 2002, Buffalo, New York) page 29.
-% The Hering illusion is due to Ewald Hering (1861) also in Seckel page 134.
-% The shape-from-shading illusion is Isao Watanabe, (he calls it ``3-D Shape and Outline'').
-% It's in Seckel page 286 and on Watanabe's web site:
-% http://www.let.kumamoto-u.ac.jp/watanabe/Watanabe-E/Illus-E/3D-E/index.html
-
 \subsection{Controlling Accuracy}
 
 The graphics rendering of Xr is carefully implemented to allow all
@@ -360,7 +353,7 @@
   \begin{center}
   \epsfxsize=2.5in
   \epsfbox{examples/outline}
-  \caption{An example showing XrFill with XrSetPattern used to create a gradient}
+  \caption{Outline affects perception of depth from shading, (after an illustration by Isao Watanabe\cite{watanabe}). This example uses XrFill with XrSetPattern}
   \label{fig:outline}
   \end{center}
 \end{figure}

Index: keithp.bib
===================================================================
RCS file: /local/src/CVS/papers/xr_ols2003/keithp.bib,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- keithp.bib	16 May 2003 15:39:14 -0000	1.2
+++ keithp.bib	16 May 2003 16:58:13 -0000	1.3
@@ -529,4 +529,18 @@
  title          = "The {GIMP}: The {GNU} Image Manipulation Program",
  author         = "Peter Mattis and Spencer Kimball and the GIMP developers",
  note           = "\url{http://www.gimp.org}",
-}
\ No newline at end of file
+}
+
+@misc{watanabe,
+ title          = "3-D Shape and Outline",
+ author         = "Isao Watanabe",
+ note           = "\url{http://www.let.kumamoto-u.ac.jp/watanabe/Watanabe-E/Illus-E/3D-E/index.html}",
+}
+
+@book{seckel,
+  author = 	 {Al Seckel},
+  title = 	 {The Great Book of Optical Illusions},
+  publisher = 	 {Firefly Books Ltd.},
+  year = 	 {2002},
+}
+