PowerScale.setExponent(value)
Specifies the exponent of the scaling. The axis position of data \$x\$ is given by \$x^(value)\$. The corresponding “getter” function is getExponent().
Example
Chart Component Script
dataset = [["State", "Quantity"], ["NJ",200], ["NY",300]]; (1)
graph = new EGraph();
var qscale = new PowerScale(); (2)
qscale.setFields(["Quantity"]);
var elem = new IntervalElement("State", "Quantity"); (3)
qscale.setExponent(0.5); (4)
graph.setScale("Quantity", qscale); (5)
graph.addElement(elem);| 1 | See dataset to use a data block instead of an array literal. |
| 2 | Create the PowerScale object. |
| 3 | Compute the PowerScale using the “Quantity” field. |
| 4 | Use setExponent to display value \$x\$ as \$x^0.5\$. |
| 5 | Use EGraph.setScale(field, scale) to add the Scale to the Chart for the “Quantity” field. |
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.
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