en/builder/src/echarts3/coord/single/SingleAxis.js

import * as zrUtil from 'zrender/src/core/util';
import Axis from '../Axis';
/**
 * @constructor  module:echarts/coord/single/SingleAxis
 * @extends {module:echarts/coord/Axis}
 * @param {string} dim
 * @param {*} scale
 * @param {Array.<number>} coordExtent
 * @param {string} axisType
 * @param {string} position
 */

var SingleAxis = function (dim, scale, coordExtent, axisType, position) {
  Axis.call(this, dim, scale, coordExtent);
  /**
   * Axis type
   * - 'category'
   * - 'value'
   * - 'time'
   * - 'log'
   * @type {string}
   */

  this.type = axisType || 'value';
  /**
   * Axis position
   *  - 'top'
   *  - 'bottom'
   *  - 'left'
   *  - 'right'
   *  @type {string}
   */

  this.position = position || 'bottom';
  /**
   * Axis orient
   *  - 'horizontal'
   *  - 'vertical'
   * @type {[type]}
   */

  this.orient = null;
  /**
   * @type {number}
   */

  this._labelInterval = null;
};

SingleAxis.prototype = {
  constructor: SingleAxis,

  /**
   * Axis model
   * @type {module:echarts/coord/single/AxisModel}
   */
  model: null,

  /**
   * Judge the orient of the axis.
   * @return {boolean}
   */
  isHorizontal: function () {
    var position = this.position;
    return position === 'top' || position === 'bottom';
  },

  /**
   * @override
   */
  pointToData: function (point, clamp) {
    return this.coordinateSystem.pointToData(point, clamp)[0];
  },

  /**
   * Convert the local coord(processed by dataToCoord())
   * to global coord(concrete pixel coord).
   * designated by module:echarts/coord/single/Single.
   * @type {Function}
   */
  toGlobalCoord: null,

  /**
   * Convert the global coord to local coord.
   * designated by module:echarts/coord/single/Single.
   * @type {Function}
   */
  toLocalCoord: null
};
zrUtil.inherits(SingleAxis, Axis);
export default SingleAxis;