-A typeface or font refers to a set of images used to represent text on a graphical display\footnote{This terminology dates back to printing press technology}.
-In 1983, Donald Knuth published ``The METAFONT Book'' which described a vector approach to specifying fonts and a program for creating these fonts\footnote{knuth1983metafont}. Previously, only rasterised font images were popular; as can be seen from the zooming in Figure \ref{vector-vs-raster-scaled} this is problematic given the prevelance of textual information at different scales and on different resolution displays.
-
-Knuth used Bezier Cubic Splines as discussed in Section \ref{} to define ``pleasing'' curves in METAFONT, and this approach is still used in modern vector fonts. Since the paths used to render an individual character (often called ``glyphs'') are used far more commonly than general curves, document formats do not require such curves to be specified in situ, but allow for a choice between a number of internal fonts or externally specified fonts. In the case of Knuth's typesetting language \TeX, fonts were intended to be created using METAFONT\cite{knuth}.
-
-Figure \ref{zglyph} shows a $\mathscr{Z}$ (Z) in Ralph Smith's Formal Script font\footnote{\url{http://www.tug.dk/FontCatalogue/rfsf/}}. On the right, a screenshot taken in the Inkscape vector graphics editor shows the start/end points for each Cubic Bezier in the Spline defining the glyph outline\footnote{Inkscape activates the two adjacent control points after selecting one of the bezier start/end points; these are the two circles in Figure \ref{zglyph}}.
-
\begin{figure}[H]
\begin{minipage}[t]{0.5\textwidth}
\begin{figure}[H]
\centering
- \includegraphics[width=1\textwidth]{figures/z.pdf}
+ \includegraphics[width=0.7\textwidth]{figures/z.pdf}
\end{figure}
\end{minipage}
\begin{minipage}[t]{0.5\textwidth}
\begin{figure}[H]
\centering
- \includegraphics[width=1\textwidth]{figures/z.png}
+ \includegraphics[width=0.7\textwidth]{figures/z.png}
\end{figure}
\end{minipage}
- \caption{A glyph for the letter Z and a screenshot showing bezier start/end points as squares and diamonds}\label{zglyph}
+ \caption{a) Vector glyph for the letter Z b) Screenshot showing B{\'e}zier control points in Inkscape}
\end{figure}
+
+A the term ``font'' refers to a set of images used to represent text on a graphical display. In 1983, Donald Knuth published ``The METAFONT Book'' which described a vector approach to specifying fonts and a program for creating these fonts\cite{knuth1983metafont}. Previously, only rasterised font images (glyphs) were popular; as can be seen from the zooming in Figure \ref{vector-vs-raster-scaled} this can be problematic given the prevelance of textual information at different scales and on different resolution displays.
+
+Knuth used B{\'e}zier Cubic Splines to define ``pleasing'' curves in METAFONT, and this approach is still used in modern vector fonts. Since the paths used to render an individual glyph are used far more commonly than general curves, document formats do not require such curves to be specified in situ, but allow for a choice between a number of internal fonts or externally specified fonts. In the case of Knuth's typesetting language \TeX, fonts were intended to be created using METAFONT\cite{knuth}. Figure \ref{zglyph} shows a $\mathscr{Z}$ (Z) in Ralph Smith's Formal Script font as produced by \LaTeX with the start and end points of each Cubic B{\'e}zier identified.
+
+
git.ucc.asn.au / ipdf / sam.git / blobdiff
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