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TimeBench, a flexible, easy-to-use, and reusable software library written in Java that provides foundational data structures and algorithms for time- oriented data in Visual Analytics.

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package timeBench.data;

import ieg.prefuse.data.ParentChildNode;
import prefuse.data.Schema;
import prefuse.data.Table;
import prefuse.data.event.EventConstants;
import prefuse.data.event.TableListener;

/**
 * 
 * 
 * 
 * Added:          / TL

 * Modifications: 
 * 
 * 
 * @author Tim Lammarsch
 *
 */
public class GranularityAggregationTree extends TemporalDataset {
	double[][] minValues;
	double[][] maxValues;
	    
	public GranularityAggregationTree(Schema dataColumnSchema, int levelCount) throws TemporalDataException {
	    // TODO handle int columns (canGetDouble but not canSetDouble) -> add as double columns
	    // TODO handle boolean, Object columns -> exclude?

		super(dataColumnSchema);
		
		super.getNodeTable().addColumn(ParentChildNode.DEPTH, Integer.TYPE);
		additionalNonDataColums = new String[] {ParentChildNode.DEPTH};
		
		minValues = new double[dataColumnSchema.getColumnCount()][levelCount];
		maxValues = new double[dataColumnSchema.getColumnCount()][levelCount];
		int l=0;
		for(int k : getDataColumnIndices()) {
			if (getNodeTable().canGetDouble(k)) {
				for(int j=0; j