IntervalElement.setStackGroup(Boolean)

Specifies whether each element group (i.e., bar series) should be stacked independently, or whether all should form a single stack order. Note: There is no corresponding “getter” function.

Parameters

Boolean

true: independent stack order for each group
false: single stack order for all groups

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);
elem.setStackGroup(true); (3)
elem.setCollisionModifier(GraphElement.STACK_SYMMETRIC);
graph.addElement(elem); (4)
1 See dataset to use a data block instead of an array literal.
2 Create the IntervalElement object.
3 Use setStackGroup to assign independent stack order.
4 Use EGraph.addElement(elem) to add the IntervalElement to the Chart.

IntervalElementsetStackGroup

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.setStackGroup(false);
// To adjust the Y-axis to include all elements:
graph.getCoordinate().getYScale().setScaleRange(new StackRange());