ChartPie Sub

 Action
 Draws bar, column, and line charts.


 Syntax
 ChartPie env, cat$(), value!(), expl%(), n%

 Remarks
 The ChartPie procedure uses the following arguments.

 env
 ---
 A variable dimensioned as type ChartEnvironment.

 cat$()
 ------
 A one-dimensional string array of category names.

 value!()
 --------
 A one-dimensional single-precision array that contains the
 chart data.

 expl%()
 -------
 A one-dimensional integer array containing flags that determine whether each
 element of the pie chart is exploded. If the value of an expl%() array
 element is nonzero, that slice of the pie chart is exploded. If the array
 element is zero, the slice is not exploded.

 n%
 --
 An integer that contains the number of data items in value!().


 The value!(), cat$(), and expl%() arrays must have a lower bound of 1.
 An analysis routine called AnalyzePie (included in the Presentation Graphics
 toolbox) uses the same arguments as ChartPie. AnalyzePie analyzes and
 defines parameters in the chart environment based on the input data, but it
 does not print a chart on the screen.