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File: ia\data\Limits.js

  1. /** 
  2.  * Contains information about an upper or lower limit.
  3.  *
  4.  * @author J Clare
  5.  * @class ia.Limits
  6.  * @constructor
  7.  * @param {ia.Geography} geography The geography the Limits belongs to.
  8.  * @param {ia.Indicator} indicator The indicator the Limits belongs to.
  9.  * @param {JSON} data The json data describing the object.
  10.  */
  11. ia.Limits = function(geography, indicator, data)
  12. {	
  13. 	// Parse the JSON data.
  14. 	this._indexHash = {};
  15. 	this._valueArray = data;
  16. 	this._fValueArray = [];
  17. 	if (this._valueArray)
  18. 	{
  19. 		// Features
  20. 		var features = geography.getFeatures();
  21. 		var fLength = features.length;
  22.  
  23. 		this.minValue = Infinity;
  24. 		this.maxValue = -Infinity;
  25. 		var v;
  26. 		var fv;
  27. 		var featureId;
  28.  
  29. 		for (var i = 0; i < fLength; i++) 
  30. 		{ 
  31. 			featureId = features[i].id;
  32. 			v = this._valueArray[i];
  33. 			fv = geography.reportData.formatter.format(v, this.precision);
  34.  
  35. 			this._indexHash[featureId] = i;
  36. 			this.minValue = (v < this.minValue) ? v : this.minValue;
  37. 			this.maxValue = (v > this.maxValue) ? v : this.maxValue;  
  38.  
  39. 			this._fValueArray.push(fv);
  40. 		}
  41. 	}
  42. };
  43.  
  44. /**
  45.  * The minimum value.
  46.  *
  47.  * @property minValue
  48.  * @type Number
  49.  */
  50. ia.Limits.prototype.minValue;
  51.  
  52. /**
  53.  * The maximum value.
  54.  *
  55.  * @property maxValue
  56.  * @type Number
  57.  */
  58. ia.Limits.prototype.maxValue;
  59.  
  60. /** 
  61.  * Returns the value that corresponds to the feature id.
  62.  * 
  63.  * @method getValue
  64.  * @param {String} id The feature id.
  65.  * @return {Number|String} The value for the given id.
  66.  */
  67. ia.Limits.prototype.getValue = function(id) {return this._valueArray[this._indexHash[id]];};
  68.  
  69. /** 
  70.  * Returns the list of values.  
  71.  *
  72.  * @method getValues
  73.  * @return {Number|String[]} An array of values.
  74.  */	
  75. ia.Limits.prototype.getValues = function() {return this._valueArray;};
  76.  
  77. /** 
  78.  * Returns the formatted value that corresponds to the feature id.
  79.  * 
  80.  * @method getFormattedValue
  81.  * @param {String} id The feature id.
  82.  * @return {String} The formatted value for the given id.
  83.  */
  84. ia.Limits.prototype.getFormattedValue = function(id) {return this._fValueArray[this._indexHash[id]];};
  85.  
  86. /** 
  87.  * Returns the list of formatted values.  
  88.  *
  89.  * @method getFormattedValues
  90.  * @return {String[]} An array of formatted values.
  91.  */	
  92. ia.Limits.prototype.getFormattedValues = function() {return this._fValueArray;};
  93.