--- loncom/html/adm/help/tex/Authoring_Dynamic_Plot_Gnuplot.tex 2013/07/13 21:50:50 1.7
+++ loncom/html/adm/help/tex/Authoring_Dynamic_Plot_Gnuplot.tex 2013/09/09 20:59:44 1.9
@@ -1,22 +1,23 @@
\label{Authoring_Dynamic_Plot_Gnuplot}
\index{gnuplot}\index{plot}\index{dynamic plot}
-The \textbf{gnuplot} LON-CAPA tag allows an author to design a plot which is created
-when it is viewed. This is intended for use in homework problems
-where each student needs to see a distinct plot. It can be used in
-conjunction with a \textbf{script} tag to generate curve data for random plots.
+The \textbf{gnuplot} LON-CAPA tag allows an author to design a plot which will be
+created programatically at the time when it is requested for display by a student.
+This is intended for use in homework problems where a distinct plot should be
+rendered for each student. It can be used in conjunction with a
+\textbf{script} tag to generate curve data for random plots.
If you are using
static data a dynamically generated plot is not appropriate because of
the overhead associated with generating the plot. In that case, use a
-picture (see \ref{Authoring_Adding_Pictures}).
+picture (see ``Adding Picture'' section \ref{Authoring_Adding_Pictures}).
The easiset way to create a template for a gnuplot tag is to use the colorful
problem editor, and select \textbf{GnuPlot} from the \textbf{Insert} dropdown menu.
-Then the boxes may be filled with the assistance of this documentation. By default, only
+Thereafter the boxes may be filled using this documentation to assist you. By default, only
the parent \textbf{gnuplot} tag and the child \textbf{curve} tag are created by
-default when the plot is inserted with the colorful editor. Other tags can be
+when the plot is inserted into a problem using the colorful editor. Other tags can be
added to decorate and polish your plot using the \textbf{Insert:} dropdown
-from the colorful editor.
+provided by the colorful editor.
The following \textbf{gnuplot} parameters may be set:
@@ -26,11 +27,11 @@ This text is used as the \texttt{alt} va
used to display the plot on a web page.
\item \texttt{background color of image (xffffff)}
-See the color selection section \ref{Authoring_Dynamic_Plot_Color_Selection}
+See the ``Color Selection'' section \ref{Authoring_Dynamic_Plot_Color_Selection}
for help on specifying colors.
\item \texttt{foreground color of image (x000000)}
-See the color selection section \ref{Authoring_Dynamic_Plot_Color_Selection}
+See the ``Color Selection'' section \ref{Authoring_Dynamic_Plot_Color_Selection}
for help on specifying colors.
\item \texttt{height of image (pixels)}
@@ -45,10 +46,10 @@ If the image is transparent the backgrou
\item \texttt{Display grid} ``Yes'' or ``No''.
-\item \texttt{Number of samples for non-data plots} If a \textbf{function} tag
-(see section \ref{Authoring_Dynamic_Plot_Curve_Function}) is used to specify the
-\textbf{curve} (see section \ref{Authoring_Dynamic_Plot_Curve}), this indicates the number
-of sample points to use.
+\item \texttt{Number of samples for non-data plots} If a \textbf{function} tag is used
+(see ``Plotting Functions'' section \ref{Authoring_Dynamic_Plot_Curve_Function}) to specify the
+\textbf{curve} (see ``Specifying Curves to Plot'' section \ref{Authoring_Dynamic_Plot_Curve}),
+this indicates the number of sample points to use.
\item \texttt{Draw border around plot} ``Yes'' or ``No''
@@ -81,12 +82,12 @@ The parent \texttt{gnuplot} tag allows u
editor):
\begin{itemize}
-\item \textbf{curve} (see section \ref{Authoring_Dynamic_Plot_Curve})
-\item \textbf{title}, \textbf{xlabel}, and \textbf{ylabel} (see section
+\item \textbf{curve} (see ``Specifying Curves to Plot'' section \ref{Authoring_Dynamic_Plot_Curve})
+\item \textbf{title}, \textbf{xlabel}, and \textbf{ylabel} (see ``Plot Labels and Key'' section
\ref{Authoring_Dynamic_Plot_Title_X_Y_Label})
-\item \textbf{key} (see section \ref{Authoring_Dynamic_Plot_Key})
-\item \textbf{label} (see section \ref{Authoring_Dynamic_Plot_Label})
-\item \textbf{axes} (see section \ref{Authoring_Dynamic_Plot_Axes})
-\item \textbf{tics} (see section \ref{Authoring_Dynamic_Plot_Tics})
+\item \textbf{key} (see ``Plot Labels and Key'' section \ref{Authoring_Dynamic_Plot_Key})
+\item \textbf{label} (see ``Plot Labels and Key'' section \ref{Authoring_Dynamic_Plot_Label})
+\item \textbf{axes} (see ``Plot Axes Details'' section \ref{Authoring_Dynamic_Plot_Axes})
+\item \textbf{tics} (see ``Plot Axes Details'' section \ref{Authoring_Dynamic_Plot_Tics})
\end{itemize}