Plot.java

package FileManagement;


	import java.io.File;
	import java.io.IOException;
	import java.util.Map;

	import org.jfree.chart.ChartFactory;
	import org.jfree.chart.ChartUtilities;
	import org.jfree.chart.JFreeChart;
	import org.jfree.data.general.DefaultPieDataset;

	public class Plot {
		
		/**
		 * Plots the pie chart.
		 *
		 * @param Map<String, Double>, file path to save the chart and name of the chart.
		 * 
		 * @return N/A
		 * 
		 */
 
		public static void plot_pie_chart(Map<String, Double> data, String filePath, String chartTitle)
		{
			DefaultPieDataset dataset = new DefaultPieDataset( );
			 for(Map.Entry m:data.entrySet()){ 
				 dataset.setValue((String) m.getKey(), new Double( (double) m.getValue() ) );
				 } 
			 JFreeChart chart = ChartFactory.createPieChart(
				 chartTitle, // chart title
				 dataset, // data
				 true, // include legend
				 true,
				 false);
				 
				 int width = 1500; /* Width of the image */
				 int height = 1500; /* Height of the image */ 
				 File pieChart = new File(filePath); 
				 try {
						ChartUtilities.saveChartAsJPEG( pieChart , chart , width , height );
						System.out.println(filePath +" graph generated.");
						 System.out.println();
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
		
		}
	}