X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=doc%2Fctsim-appendix.tex;h=a826258e35e415887b2a6c4046eee6a9de106a84;hb=ca7c001fce978b680543f8338a404b8c0701a935;hp=8be008783bcbff2a06eac34c96317e506a038e21;hpb=47601e0ab94ccdc360824178cf068a05bcbdb0eb;p=ctsim.git

diff --git a/doc/ctsim-appendix.tex b/doc/ctsim-appendix.tex
index 8be0087..a826258 100644
--- a/doc/ctsim-appendix.tex
+++ b/doc/ctsim-appendix.tex
@@ -1,73 +1,71 @@
 \appendix
 
-\chapter{Simple Graphics Package}\label{appendix}\index{Appendix}%
+\chapter{Simple Graphics Package}\label{appendix}\index{Simple Graphics Package}
 \setheader{{\it Appendix \thechapter}}{}{}{\ctsimheadtitle}{}{{\it Appendix \thechapter}}%
 \ctsimfooter%
 
-
 Simple Graphics Package was created in 1980 by Kevin Rosenberg and
-is modelled after the graphics library in Foley and van
+is modelled after the hypothetical graphics library described by Foley and van
 Dam\cite{FOLEY82}. It is designed to be platform-independent.
 
-\section{Flowchart}
-Master coordinate (MC) level \\
-$\hspace{3cm} \downarrow$ \\
-Apply \emph{Current transformation matrix} \\
-$\hspace{3cm} \downarrow$ \\
-World coordinate (WC) level \\
-$\hspace{4cm} \downarrow$ \\
-Clipping against Window \\
-$\hspace{3cm} \downarrow$ \\
-Convert to Normalized device coordinates (NDC) \\
-$\hspace{3cm}  \downarrow$ \\
-Clipping against Viewport \\
-$\hspace{3cm}  \downarrow$ \\
-Convert to Physical device coordinates (PDC) \\
-
+\section{Transformation Sequence}
+\latexonly{
+\parbox{11cm}{
+\centerline{Master coordinate (MC) level}
+\centerline{$\downarrow$}
+\centerline{Apply \emph{Current transformation matrix}}
+\centerline{$\downarrow$}
+\centerline{World coordinate (WC) level}
+\centerline{$\downarrow$}
+\centerline{Clipping against Window}
+\centerline{$\downarrow$}
+\centerline{Convert to Normalized device coordinates (NDC)}
+\centerline{$\downarrow$}
+\centerline{Clipping against Viewport}
+\centerline{$\downarrow$}
+\centerline{Convert to Physical device coordinates (PDC)}
+}}
+\latexignore{
+\centerline{Master coordinate (MC) level}
+\centerline{Apply \emph{Current transformation matrix}}
+\centerline{World coordinate (WC) level}
+\centerline{Clipping against Window}
+\centerline{Convert to Normalized device coordinates (NDC)}
+\centerline{Clipping against Viewport}
+\centerline{Convert to Physical device coordinates (PDC)}
+}
 
 \section{Functions}%
 
-\subsection{State functions}
-\begin{twocollist}
-\twocolitem{\texttt{eraseWindow()}}{Clears the screen}
-\twocolitem{\texttt{setColor(color)}}{Set current pen color}
-\twocolitem{\texttt{setLinestyle(style)}}{Set current pen style}
-\twocolitem{\texttt{setLinewidth(width)}}{Set current pen width}
-\twocolitem{\texttt{setTextColor(foreground, background)}}{Set text colors}
-\twocolitem{\texttt{setMarker(type, color)}}{Set marker attibutes}
-\twocolitem{\texttt{setRasterOp(rasterOp)}}{Set raster operator}
-\end{twocollist}
-
-
 \subsection{Master coordinate functions}
 \begin{twocollist}
-\twocolitem{setWindow(xmin, ymin, xmax, ymax)}{Set window for world
+\twocolitem{\texttt{setWindow(xmin,ymin,xmax,ymax)}}{Set window for world
 coordinates}
-\twocolitem{\texttt{moveAbs(x, y)}}{Move graphics cursor to absolute position}
-\twocolitem{\texttt{moveRel(dx, dy)}}{Move graphics cursor relative to current position}
-\twocolitem{\texttt{pointAbs(x, y)}}{Draw point at current position}
-\twocolitem{\texttt{pointRel(dx, dy)}}{Draw point relative to current position}
-\twocolitem{\texttt{lineAbs(x, y)}}{Draw line from current position to
+\twocolitem{\texttt{moveAbs(x,y)}}{Move graphics cursor to absolute position}
+\twocolitem{\texttt{moveRel(dx,dy)}}{Move graphics cursor relative to current position}
+\twocolitem{\texttt{pointAbs(x,y)}}{Draw point at current position}
+\twocolitem{\texttt{pointRel(dx,dy)}}{Draw point relative to current position}
+\twocolitem{\texttt{lineAbs(x,y)}}{Draw line from current position to
 absolute position}
-\twocolitem{\texttt{lineRel(dx, dy)}}{Draw line from current position to position
+\twocolitem{\texttt{lineRel(dx,dy)}}{Draw line from current position to position
 relative to current position}
 \twocolitem{\texttt{markerAbs(x,y)}}{Draw marker at current position}
 \twocolitem{\texttt{markerRel(dx,dy)}}{Draw marker relative to current position}
-\twocolitem{\texttt{polylineAbs(x[], y[], n)}}{Draw a series of lines to absolute position}
-\twocolitem{\texttt{polylineRel(dx[], dy[], n)}}{Draw series of lines relative to current position}
+\twocolitem{\texttt{polylineAbs(x[],y[],n)}}{Draw a series of lines to absolute position}
+\twocolitem{\texttt{polylineRel(dx[],dy[],n)}}{Draw series of lines relative to current position}
 \twocolitem{\texttt{drawString(str)}}{Draw text string at current positon}
-\twocolitem{\texttt{drawCircle(r}}{Draw circle at current positon}
+\twocolitem{\texttt{drawCircle(r)}}{Draw circle at current positon}
 \twocolitem{\texttt{drawArc(r,start,stop)}}{Draw arc with center at current positon}
 \twocolitem{\texttt{drawRect(xmin,ymin,xmax,ymax)}}{Draw rectangle}
 \end{twocollist}
 
 \subsection{Normalized coordinate functions}%
 \begin{twocollist}
-\twocolitem{\texttt{Viewport(xmin, ymin, xmax, ymax)}}{Viewport for window
+\twocolitem{\texttt{Viewport(xmin,ymin,xmax,ymax)}}{Viewport for window
 in NDC}
-\twocolitem{\texttt{stylus(x, y, beam)}}{Draw a line from current
-position}
-\twocolitem{\texttt{markerNDC(xndc, yndc)}}{Draw marker at NDC position}
+\twocolitem{\texttt{stylus(x,y,beam)}}{Draw a line from current
+position if beam = 1, otherwise move stylus to new position}
+\twocolitem{\texttt{markerNDC(xndc,yndc)}}{Draw marker at NDC position}
 \end{twocollist}
 
 \subsection{Master coordinate to World coordinate transformations}%
@@ -94,6 +92,17 @@ coordinates to NDC}
 coordinates}
 \end{twocollist}
 
+\subsection{State functions}
+\begin{twocollist}
+\twocolitem{\texttt{eraseWindow()}}{Clears the screen}
+\twocolitem{\texttt{setColor(color)}}{Set current pen color}
+\twocolitem{\texttt{setLinestyle(style)}}{Set current pen style}
+\twocolitem{\texttt{setLinewidth(width)}}{Set current pen width}
+\twocolitem{\texttt{setTextColor(foreground, background)}}{Set text colors}
+\twocolitem{\texttt{setMarker(type,color)}}{Set marker attibutes}
+\twocolitem{\texttt{setRasterOp(rasterOp)}}{Set raster operator}
+\end{twocollist}
+
 \section{Coordinate Mapping}
 
 \subsection{Dimensions}
@@ -103,7 +112,7 @@ Physical (Physicial Device Coordinates): $X_{pmax}, Y_{pmax}$\\
 
 \subsection{Formulas}
 To convert from Master coordinates to World coordinates: \\
-Apply current transformation matrix
+\centerline{Apply \emph{current transformation matrix}}
 
 To convert from WC to NDC:\\
 \begin{equation}