extjs/packages/charts/src/chart/interactions/RotatePie3D.js

   1 /**
   2  * @class Ext.chart.interactions.RotatePie3D
   3  * @extends Ext.chart.interactions.Rotate
   4  *
   5  * A special version of the Rotate interaction used by Pie3D Chart.
   6  */
   7 Ext.define('Ext.chart.interactions.RotatePie3D', {
   8
   9     extend: 'Ext.chart.interactions.Rotate',
  10
  11     type: 'rotatePie3d',
  12
  13     alias: 'interaction.rotatePie3d',
  14
  15     getAngle: function (e) {
  16         var chart = this.getChart(),
  17             rtl = chart.getInherited().rtl,
  18             direction = rtl ? -1 : 1,
  19             pageXY = e.getXY(),
  20             xy = chart.element.getXY(),
  21             rect = chart.getMainRect();
  22
  23         return direction * Math.atan2(
  24             pageXY[1] - xy[1] - rect[3] * 0.5,
  25             pageXY[0] - xy[0] - rect[2] * 0.5
  26         );
  27     },
  28
  29     getRadius: function (e) {
  30         var chart = this.getChart(),
  31             radius = chart.getRadius(),
  32             seriesList = chart.getSeries(),
  33             ln = seriesList.length,
  34             i = 0,
  35             series, seriesRadius;
  36
  37         // With 3D pie series, series may have a radius that is
  38         // different from the radius of the chart, because the 'pie3d'
  39         // series will automatically adjust its radius based on
  40         // distortion, thickness and other configs.
  41         // It's not critical to check if the series radius is smaller
  42         // than the chart radius, since the base Rotate interaction
  43         // will rotate all series there are anyway.
  44         // Rotating series individually (i.e. if having multiple concentric
  45         // pie series) is not possible with neither this nor the base Rotate
  46         // interaction.
  47         for (; i < ln; i++) {
  48             series = seriesList[i];
  49             if (series.isPie3D) {
  50                 seriesRadius = series.getRadius();
  51                 if (seriesRadius > radius) {
  52                     radius = seriesRadius;
  53                 }
  54             }
  55         }
  56
  57         return radius;
  58     }
  59
  60 });