GraphElement.setAutoTextColor(Boolean)

Specifies that the text color for labels on a Bar Chart (text that appears within the colored bars) should be automatically adjusted to enhance readability.

Parameter

Boolean: true: automatically adjust text color
false: do not automatically adjust text color (default)

Example

Chart Component Script

dataset = [["State","Quantity"],["NJ",200], ["NJ",300],["NY",300],["NY",100]]; (1)
graph = new EGraph();
var elem = new IntervalElement("State", "Quantity"); (2)
var scale = new LinearScale("Quantity");
var frame = new HeatColorFrame();
frame.setField("Quantity");
elem.setColorFrame(frame);
var tframe = new DefaultTextFrame('Quantity');
var textspec = new TextSpec();
textspec.setFont(java.awt.Font('Verdana',java.awt.Font.BOLD, 14));
elem.setTextSpec(textspec);
elem.setTextFrame(tframe); (3)
elem.setAutoTextColor(true); (4)
elem.setStackGroup(true);
elem.setCollisionModifier(GraphElement.STACK_SYMMETRIC);
graph.addElement(elem); (5)

1	See dataset to use a data block instead of an array literal.
2	Create the `IntervalElement` object (Bar Chart).
3	Use GraphElement.setTextFrame(frame) to display the labels.
4	Use `setAutoTextColor` to automatically adjust label color.
5	Use `addElement` to add the `IntervalElement` to the Chart.

GraphElementSetAutoTextColor

Script that modifies the graph or dataset properties should be placed on the Chart component itself. See Add Component Script for more information. This script has access to the Chart data and Chart API methods. Scripted Charts are not good candidates for user-modification, so you should deselect ‘Enable Ad Hoc Editing’ in the Chart Properties dialog box.

To change the property on a Chart that was previously created with the Chart Editor, use “getter” methods such as EGraph.getElement(index) ① to obtain a handle to the desired GraphElement object. For example:

var elem = graph.getElement(0); (1)
elem.setAutoTextColor(true);