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1.1       matthew     1: \label{Authoring_Dynamic_Plot_Gnuplot}
                      2: 
                      3: The \textbf{gnuplot} tag allows an author to design a plot which is created
                      4: when it is viewed.  This is intended for use in homework problems
                      5: where each student needs to see a distinct plot.  It can be used in
                      6: conjunction with a \textbf{script} tag to generate random plots.
                      7: 
                      8: The following parameters may be set:
                      9: 
                     10: \begin{itemize}
                     11: \item \texttt{brief description of the plot} 
                     12: This text is used as the \texttt{alt} parameter of the \texttt{img} tag 
                     13: used to embed the plot.
                     14: 
                     15: \item \texttt{background color of image (xffffff)}
                     16: See the section on color selection \ref{Authoring_Dynamic_Plot_Color_Selection}
                     17: for help on specifying colors.
                     18: 
                     19: \item \texttt{foreground color of image (x000000)} 
                     20: 
                     21: See the section on color selection \ref{Authoring_Dynamic_Plot_Color_Selection}
                     22: for help on specifying colors.
                     23: 
                     24: \item \texttt{height of image (pixels)}
                     25: 
                     26: \item \texttt{width of image (pixels)}
                     27: 
                     28: \item \texttt{Size of font to use} ``small'', ``medium'', or ``large''.  
                     29: The font used for any text on the plot is set with this tag.
                     30: 
                     31: \item \texttt{Transparent image} ``Yes'' or ``No''.  
                     32: If the image is transparent the background color will be ignored.
                     33: 
                     34: \item \texttt{Display grid} ``Yes'' or ``No''.  
                     35: 
                     36: \item \texttt{Number of samples for non-data plots}  If a \textbf{function} 
                     37: \ref{Authoring_Dynamic_Plot_Curve_Function} tag is used to specify the
                     38: \textbf{curve} \ref{Authoring_Dynamic_Plot_Curve}, this indicates the number
                     39: of sample points to use.
                     40: 
                     41: \item \texttt{Draw border around plot} ``Yes'' or ``No''
                     42: 
                     43: \item \texttt{alignment for image in html} ``Left'', ``Center'', or ``Right''.
                     44: This is the value used for the \texttt{align} parameter in the \texttt{img} 
                     45: tag which embeds the plot in the problem.
                     46: 
1.3     ! matthew    47: \item \texttt{Width of plot when printed (mm)} The width in mm of the plot when
        !            48: it is printed.  The default is approximately one half of a U.S. letter size 
        !            49: page, 93 mm.
        !            50: 
        !            51: \item \texttt{Font size to use in TeX output (pts)} The size in points of text
        !            52: on the graph when it is printed out.
        !            53: 
1.1       matthew    54: \item \texttt{Plot type:} ``Cartesian'' or ``Polar''.  
                     55: \end{itemize}
                     56: 
                     57: The \textbf{gnuplot} tag allows the use of the the following tags:
                     58: 
                     59: \begin{itemize}
                     60: \item \textbf{curve} \ref{Authoring_Dynamic_Plot_Curve}
                     61: \item \textbf{key}   \ref{Authoring_Dynamic_Plot_Key}
                     62: \item \textbf{label} \ref{Authoring_Dynamic_Plot_Label}
                     63: \item \textbf{axes}  \ref{Authoring_Dynamic_Plot_Axes}
                     64: \item \textbf{tics}  \ref{Authoring_Dynamic_Plot_Tics}
                     65: \item \textbf{title}, \textbf{xlabel}, and \textbf{ylabel} 
                     66:       \ref{Authoring_Dynamic_Plot_Title_X_Y_Label}
                     67: \end{itemize}
                     68: