Coordinate.rotate(value)

Rotate the axes by the specified angle.

Parameter

value

an angle in degrees

Example

Chart Component Script
dataset = [["Direction", "Score"],[(Math.PI/2),20],[(Math.PI/4),30],[(Math.PI),35]]; (1)
graph = new EGraph();
var elem = new PointElement("Direction", "Score");
var xscale = new LinearScale("Direction");
var yscale = new LinearScale("Score");
yscale.setMin(0);
yscale.setMax(40);
xscale.setMin(0);
xscale.setMax(1.95*Math.PI);
xscale.setIncrement(Math.PI/8);
var rect = new RectCoord(xscale,yscale);
var polar = new PolarCoord(rect); (2)
polar.rotate(45); (3)
polar.setType(PolarCoord.THETA);
graph.setCoordinate(polar); (4)
graph.addElement(elem);
1 See dataset to use a data block instead of an array literal.
2 Create the Coordinate object.
3 Use rotate to rotate the polar coordinates 45°.
4 Use EGraph.setCoordinate(coord) to add the Coordinate to the Chart.

Coordinaterotate

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 EGraph.getCoordinate() ① to obtain a handle to the desired Coordinate object. For example:

var coord = graph.getCoordinate(); (1)
var polar = new PolarCoord(coord);
polar.setType(PolarCoord.PLUS);
polar.rotate(90);
polar.setHoleRatio(.25);
graph.setCoordinate(polar);