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annotate geotemco/js/PieChart/PieChartWidget.js @ 21:c805470cefee

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Remove bootstrap.TaggingText UI layout modification
author Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date Tue, 24 Feb 2015 16:09:59 +0100
parents b12c99b7c3f0
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1 /*
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2 * PieChartWidget.js
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3 *
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4 * Copyright (c) 2013, Sebastian Kruse. All rights reserved.
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5 *
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6 * This library is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
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8 * License as published by the Free Software Foundation; either
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9 * version 3 of the License, or (at your option) any later version.
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10 *
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11 * This library is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with this library; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 * MA 02110-1301 USA
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20 */
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21
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22 /**
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23 * @class PieChartWidget
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24 * PieChartWidget Implementation
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25 * @author Sebastian Kruse (skruse@mpiwg-berlin.mpg.de)
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26 *
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27 * @param {WidgetWrapper} core wrapper for interaction to other widgets
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28 * @param {HTML object} div parent div to append the PieChart widget div
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29 * @param {JSON} options user specified configuration that overwrites options in PieChartConfig.js
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30 */
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31 PieChartWidget = function(core, div, options) {
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32
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33 this.datasets;
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34 this.selected;
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35 this.core = core;
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36 this.core.setWidget(this);
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37
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38 this.options = (new PieChartConfig(options)).options;
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39 this.gui = new PieChartGui(this, div, this.options);
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40
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41 this.pieCharts = [];
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42 }
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43
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44 PieChartWidget.prototype = {
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45
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46 addCategorizedPieChart : function(watchedDataset, watchedColumn, type, categories){
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47 var selectionFunction;
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48 if (type === "text"){
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49 //create selection function for the pie chart
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50 var selectionFunction = function(columnData){
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51 var categoryLabel;
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52 $(categories).each(function(){
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53 if ($.inArray(columnData,this.values) != -1){
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54 categoryLabel = this.label;
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55 //exit .each
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56 return false;
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57 }
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58 if (typeof categoryLabel !== "undefined")
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59 return false;
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60 });
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61
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62 if (typeof categoryLabel === "undefined")
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63 categoryLabel = "unknown";
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64
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65 return categoryLabel;
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66 };
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67 } else if (type === "numeral"){
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68 //create selection function for the pie chart
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69 var selectionFunction = function(columnData){
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70 var categoryLabel;
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71 var columnDataNumeric = parseFloat(columnData);
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72 for (var i = 0; i < categories.length; i++){
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73 if (columnDataNumeric<=categories[i]){
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74 categoryLabel = pieChartCategoryChooser.columnName + "<=" + categories[i];
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75 break;
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76 }
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77 }
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78
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79 if (typeof categoryLabel === "undefined")
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80 categoryLabel = "unknown";
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81
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82 return categoryLabel;
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83 };
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84 } else
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85 return;
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86
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87 //make categories easy accessible for later usage
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88 selectionFunction.type = type;
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89 selectionFunction.categories = categories;
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90
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91 this.addPieChart(watchedDataset, watchedColumn, selectionFunction);
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92 },
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93
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94 addPieChart : function(watchedDataset, watchedColumn, selectionFunction){
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95 var newPieChart = new PieChart(this, watchedDataset, watchedColumn, selectionFunction);
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96 this.pieCharts.push(newPieChart);
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97 if ( (typeof GeoTemConfig.datasets !== "undefined") &&
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98 (GeoTemConfig.datasets.length > watchedDataset) )
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99 newPieChart.initPieChart(GeoTemConfig.datasets);
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100 this.redrawPieCharts(this.selected);
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101 },
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102
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103 initWidget : function(data) {
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104 var piechart = this;
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105 this.datasets = data;
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106 piechart.selected = [];
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107 $(this.datasets).each(function(){
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108 piechart.selected.push(this.objects);
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109 })
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110
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111 this.gui.refreshColumnSelector();
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112
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113 $(this.pieCharts).each(function(){
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114 if (this instanceof PieChart)
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115 this.initPieChart(data);
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116 });
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117 },
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118
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119 redrawPieCharts : function(objects, overwrite) {
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120 $(this.pieCharts).each(function(){
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121 if (this instanceof PieChart){
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122 if ( (typeof overwrite !== "undefined") && overwrite)
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123 this.preHighlightObjects = objects;
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124 this.redrawPieChart(objects);
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125 }
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126 });
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127 },
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128
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129 highlightChanged : function(objects) {
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130 if( !GeoTemConfig.highlightEvents ){
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131 return;
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132 }
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133 if ( (typeof objects === "undefined") || (objects.length == 0) ){
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134 return;
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135 }
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136 this.redrawPieCharts(objects, false);
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137 },
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138
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139 selectionChanged : function(selection) {
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140 if( !GeoTemConfig.selectionEvents ){
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141 return;
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142 }
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143 if (!selection.valid()){
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144 selection.loadAllObjects();
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145 }
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146 var objects = selection.objects;
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147 this.selected = objects;
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148 this.redrawPieCharts(objects, true);
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149 },
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150
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151 getElementData : function(dataObject, watchedColumn, selectionFunction) {
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152 var columnData;
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153 if (watchedColumn.indexOf("[") === -1){
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154 columnData = dataObject[watchedColumn];
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155 if (typeof columnData === "undefined"){
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156 columnData = dataObject.tableContent[watchedColumn];
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157 };
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158 } else {
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159 try {
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160 var columnName = watchedColumn.split("[")[0];
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161 var IndexAndAttribute = watchedColumn.split("[")[1];
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162 if (IndexAndAttribute.indexOf("]") != -1){
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163 var arrayIndex = IndexAndAttribute.split("]")[0];
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164 var attribute = IndexAndAttribute.split("]")[1];
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165
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166 if (typeof attribute === "undefined")
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167 columnData = dataObject[columnName][arrayIndex];
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168 else{
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169 attribute = attribute.split(".")[1];
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170 columnData = dataObject[columnName][arrayIndex][attribute];
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171 }
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172 }
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173 } catch(e) {
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174 if (typeof console !== undefined)
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175 console.error(e);
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176
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177 delete columnData;
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178 }
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179 }
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180
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181 if ( (typeof columnData !== "undefined") && (typeof selectionFunction !== "undefined") )
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182 columnData = selectionFunction(columnData);
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183
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184 return(columnData);
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185 },
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186
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187 getElementsByValue : function(columnValue, watchedDataset, watchedColumn, selectionFunction) {
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188 var elements = [];
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189 var pieChart = this;
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190
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191 $(this.datasets[watchedDataset].objects).each(function(){
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192 var columnData = pieChart.getElementData(this, watchedColumn, selectionFunction);
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193 if (columnData === columnValue)
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194 elements.push(this);
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195 });
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196
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197 return elements;
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198 },
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199 };