GraphElement.setCollisionModifier(value)

Specifies how collisions (elements occupying the same location) should be handled. The corresponding “getter” function is getCollisionModifier().

Parameter

value

One of the following constants:

GraphElement.MOVE_NONE    (do not stack/center)
GraphElement.MOVE_CENTER  (center, do not stack)
GraphElement.MOVE_DODGE   (offset horizontal)
GraphElement.MOVE_STACK   (offset vertical (stack))
GraphElement.MOVE_JITTER  (random offset (points))
GraphElement.DODGE_SYMMETRIC  (offset horiz, center)
GraphElement.STACK_SYMMETRIC  (offset vert, center)

Examples

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);
elem.setCollisionModifier(GraphElement.STACK_SYMMETRIC); (3)
graph.addElement(elem); (4)

1	See dataset to use a data block instead of an array literal.
2	Create the `IntervalElement` object.
3	Use `setCollisionModifier` to set stacking.
4	Use `addElement` to add the IntervalElement to the Chart.

GraphElementsetCollisionMod

Chart Component Script

dataset = [["State","Quantity"],["NJ",200],["NJ",200],["NJ",200],["NJ",200],["NJ",200],["NJ",300],
["NY",300],["NY",300],["NY",300],["NY",300],["NY",300],["NY",450]]; (1)
graph = new EGraph();
var elem = new PointElement("State", "Quantity"); (2)
var frame = new HeatColorFrame();
frame.setField("Quantity");
elem.setColorFrame(frame);
elem.setStackGroup(true);
elem.setCollisionModifier(GraphElement.MOVE_JITTER); (3)
graph.addElement(elem); (4)

1	See dataset to use a data block instead of an array literal.
2	Create the `PointElement` object.
3	Use `setCollisionModifier` to jitter the points.
4	Use `addElement` to add the PointElement to the Chart.

GraphElementsetCollisionMod2

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.setCollisionModifier(GraphElement.MOVE_JITTER);