Working with graph controls in code – PB Docs 125

Properties of graph controls

You can access (and optionally modify) a graph by addressing
its properties in code at runtime. There are two kinds of graph
properties:

• Properties
  of the graph definition itself

  These properties are initially set in the painter when you
  create a graph. They include a graph’s type, title, axis
  labels, whether axes have major divisions, and so on. For 3D graphs, this includes
  the Render 3D property that uses transparency rather than overlays
  to enhance a graph’s appearence and give it a more sophisticated
  look.

• Properties of the data

  These properties are relevant only at runtime, when data has
  been loaded into the graph. They include the number of series in
  a graph (series are created at runtime), colors of bars or columns for
  a series, whether the series is an overlay, text that identifies
  the categories (categories are created at runtime), and so on.

Events of graph controls

Graph controls have the events listed in Table 15-1.

So, for example, you can write a script that is invoked when
a user clicks a graph or drags an object on a graph (as long as
the graph is enabled).

Functions for graph controls

You use the PowerScript graph functions in Table 15-2 to manipulate data
in a graph.