h2. 4.1.7 Vector2D Series

Vector Series

Vector2D Series uses ChartDataModel. Series extracts coordinates of vectors packed into ChartDataModel array, maps and plots them. Each vector is drawn as an arrow.

Setting Vector Series:

// creates VectorSeries object named verctor1, with ChartDataModel instance
// named vectorModel1, and xMapper, yMapper - instaces of AxisMapper
VectorSeries vector1 = new VectorSeries(vectorModel1, xMapper, yMapper);

Vector2D Series Demonstration

Figure 4.1.7.1 Vector2D Series Demonstration

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Figure 4.1.7.1: Vector2D Series Demonstration

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
 
import javax.swing.JFrame;
 
import lt.monarch.chart.chart2D.Chart2D;
import lt.monarch.chart.chart2D.Grid;
import lt.monarch.chart.chart2D.axis.Axis2DX;
import lt.monarch.chart.chart2D.axis.Axis2DY;
import lt.monarch.chart.chart2D.engine.PlaneMapper2D;
import lt.monarch.chart.chart2D.series.VectorSeries;
import lt.monarch.chart.chart2D.series.VectorStrategies;
import lt.monarch.chart.engine.ChartObject;
import lt.monarch.chart.engine.SimpleHotSpotMap;
import lt.monarch.chart.legend.Legend;
import lt.monarch.chart.mapper.MathAxisMapper;
import lt.monarch.chart.models.ChartDataModel;
import lt.monarch.chart.swing.JChartPanel;
import lt.monarch.chart.view.LabeledChart;
 
public class Vector2DSeriesDemo extends JFrame {
 
	private JChartPanel m_chartPanel;
 
	public Vector2DSeriesDemo() {
 
		setLayout(new BorderLayout());
		initChart();
		add(m_chartPanel, BorderLayout.CENTER);
 
	}
 
	private void initChart() {
 
		/*
		 * Creating chart
		 */
 
		Chart2D chart = new Chart2D();
		/*
		 * Creating data models
		 */
		ChartDataModel vectorModel1 = createDataModel1();
 
		ChartDataModel vectorModel2 = createDataModel2();
 
		/*
		 * Creating mappers
		 */
		MathAxisMapper yMapper = new MathAxisMapper(0, 100);
		MathAxisMapper xMapper = new MathAxisMapper(0, 80);
		/*
		 * Creating axes
		 */
		Axis2DX axisX = new Axis2DX(xMapper);
		Axis2DY axisY = new Axis2DY(yMapper);
		axisX.setTitle("x");
		axisY.setTitle("y");
		axisX.setScrollable(true);
		axisY.setScrollable(true);
 
		/*
		 * Creating series
		 */
		VectorSeries vector1 = new VectorSeries(vectorModel1, xMapper, yMapper);
		vector1.setStrategy(VectorStrategies.VECTOR_STRATEGY);
		vector1.getPaintStyle().setStroke(new BasicStroke(0.5f));
		vector1.getPaintStyle().setBackground(Color.BLUE);
		vector1.getPaintStyle().setForeground(Color.BLUE);
		vector1.setName("Cold current");
 
		VectorSeries vector2 = new VectorSeries(vectorModel2, xMapper, yMapper);
		vector2.getPaintStyle().setStroke(new BasicStroke(0.5f));
		vector2.getPaintStyle().setBackground(Color.RED);
		vector2.getPaintStyle().setForeground(Color.RED);
		vector2.setName("Warm current");
 
		/*
		 * Creating Grid
		 */
		Grid grid = new Grid(new PlaneMapper2D(), xMapper, yMapper);
 
		/*
		 * Adding objects to chart
		 */
		chart.setObjects(new ChartObject[] { grid, vector1, vector2 });
		chart.setYAxis(axisY);
		chart.setXAxis(axisX);
 
		/*
		 * Creating labeled chart
		 */
		LabeledChart topChart = new LabeledChart(chart);
		topChart.setTitle("Current Movement");
		/*
		 * Creating legend
		 */
		Legend legend = new Legend(chart);
		legend.setMaxColumns(2);
		topChart.setBottomView(legend);
 
		m_chartPanel = new JChartPanel(topChart);
		m_chartPanel.setHotSpotMap(new SimpleHotSpotMap());
	}
 
	public static void main(String[] args) {
		Vector2DSeriesDemo frame = new Vector2DSeriesDemo();
		frame.setSize(new Dimension(600, 400));
		frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
		frame.setTitle("Current Movement");
		frame.setVisible(true);
	}
 
	private ChartDataModel createDataModel1() {
		ChartDataModel vectorModel1 = new ChartDataModel(4);
 
		vectorModel1.add(new Object[] { 0, 55, 10, 55 });
		vectorModel1.add(new Object[] { 11, 55, 20, 55 });
		vectorModel1.add(new Object[] { 21, 55, 24, 58 });
		vectorModel1.add(new Object[] { 25, 58, 30, 60 });
		vectorModel1.add(new Object[] { 31, 60, 34, 60 });
		vectorModel1.add(new Object[] { 35, 60, 40, 55 });
		vectorModel1.add(new Object[] { 41, 55, 46, 53 });
		vectorModel1.add(new Object[] { 47, 53, 50, 51 });
		vectorModel1.add(new Object[] { 51, 51, 56, 50 });
		vectorModel1.add(new Object[] { 57, 50, 70, 50 });
		vectorModel1.add(new Object[] { 71, 50, 80, 50 });
 
		vectorModel1.add(new Object[] { 0, 58, 10, 58 });
		vectorModel1.add(new Object[] { 11, 58, 20, 58 });
		vectorModel1.add(new Object[] { 21, 58, 24, 61 });
		vectorModel1.add(new Object[] { 25, 61, 30, 63 });
		vectorModel1.add(new Object[] { 31, 63, 34, 63 });
		vectorModel1.add(new Object[] { 35, 63, 40, 58 });
		vectorModel1.add(new Object[] { 41, 58, 46, 56 });
		vectorModel1.add(new Object[] { 47, 56, 50, 54 });
		vectorModel1.add(new Object[] { 51, 54, 56, 53 });
		vectorModel1.add(new Object[] { 57, 53, 70, 53 });
		vectorModel1.add(new Object[] { 71, 53, 80, 53 });
 
		vectorModel1.add(new Object[] { 0, 61, 10, 61 });
		vectorModel1.add(new Object[] { 11, 61, 20, 61 });
		vectorModel1.add(new Object[] { 21, 61, 24, 64 });
		vectorModel1.add(new Object[] { 25, 64, 30, 66 });
		vectorModel1.add(new Object[] { 31, 66, 34, 66 });
		vectorModel1.add(new Object[] { 35, 66, 40, 61 });
		vectorModel1.add(new Object[] { 41, 61, 46, 59 });
		vectorModel1.add(new Object[] { 47, 59, 50, 57 });
		vectorModel1.add(new Object[] { 51, 57, 56, 56 });
		vectorModel1.add(new Object[] { 57, 56, 70, 56 });
		vectorModel1.add(new Object[] { 71, 56, 80, 56 });
 
		vectorModel1.add(new Object[] { 0, 64, 10, 64 });
		vectorModel1.add(new Object[] { 11, 64, 20, 64 });
		vectorModel1.add(new Object[] { 21, 64, 24, 67 });
		vectorModel1.add(new Object[] { 25, 67, 30, 69 });
		vectorModel1.add(new Object[] { 31, 69, 34, 69 });
		vectorModel1.add(new Object[] { 35, 69, 40, 64 });
		vectorModel1.add(new Object[] { 41, 64, 46, 61 });
		vectorModel1.add(new Object[] { 47, 62, 50, 60 });
		vectorModel1.add(new Object[] { 51, 60, 56, 59 });
		vectorModel1.add(new Object[] { 57, 59, 70, 59 });
		vectorModel1.add(new Object[] { 71, 59, 80, 59 });
 
		return vectorModel1;
	}
 
	private ChartDataModel createDataModel2() {
		ChartDataModel vectorModel2 = new ChartDataModel(4);
 
		vectorModel2.add(new Object[] { 0, 55, 10, 53 });
		vectorModel2.add(new Object[] { 11, 53, 20, 49 });
		vectorModel2.add(new Object[] { 21, 49, 23, 45 });
		vectorModel2.add(new Object[] { 24, 45, 30, 41 });
		vectorModel2.add(new Object[] { 31, 41, 34, 37 });
		vectorModel2.add(new Object[] { 35, 37, 40, 38 });
		vectorModel2.add(new Object[] { 41, 38, 46, 42 });
		vectorModel2.add(new Object[] { 47, 42, 50, 44 });
		vectorModel2.add(new Object[] { 51, 44, 56, 46 });
		vectorModel2.add(new Object[] { 57, 46, 70, 48 });
		vectorModel2.add(new Object[] { 71, 48, 80, 50 });
 
		vectorModel2.add(new Object[] { 0, 52, 10, 50 });
		vectorModel2.add(new Object[] { 11, 50, 20, 46 });
		vectorModel2.add(new Object[] { 21, 45, 23, 42 });
		vectorModel2.add(new Object[] { 24, 42, 30, 38 });
		vectorModel2.add(new Object[] { 31, 37, 34, 34 });
		vectorModel2.add(new Object[] { 35, 34, 40, 35 });
		vectorModel2.add(new Object[] { 41, 35, 46, 39 });
		vectorModel2.add(new Object[] { 47, 39, 50, 41 });
		vectorModel2.add(new Object[] { 51, 41, 56, 43 });
		vectorModel2.add(new Object[] { 57, 42, 70, 45 });
		vectorModel2.add(new Object[] { 71, 45, 80, 47 });
 
		vectorModel2.add(new Object[] { 0, 49, 10, 47 });
		vectorModel2.add(new Object[] { 11, 47, 20, 43 });
		vectorModel2.add(new Object[] { 21, 42, 23, 39 });
		vectorModel2.add(new Object[] { 24, 39, 30, 35 });
		vectorModel2.add(new Object[] { 31, 34, 34, 31 });
		vectorModel2.add(new Object[] { 35, 31, 40, 32 });
		vectorModel2.add(new Object[] { 41, 32, 46, 36 });
		vectorModel2.add(new Object[] { 47, 36, 50, 38 });
		vectorModel2.add(new Object[] { 51, 38, 56, 40 });
		vectorModel2.add(new Object[] { 57, 39, 70, 42 });
		vectorModel2.add(new Object[] { 71, 42, 80, 46 });
 
		vectorModel2.add(new Object[] { 0, 46, 10, 44 });
		vectorModel2.add(new Object[] { 11, 44, 20, 40 });
		vectorModel2.add(new Object[] { 21, 39, 23, 36 });
		vectorModel2.add(new Object[] { 24, 36, 30, 32 });
		vectorModel2.add(new Object[] { 31, 31, 34, 28 });
		vectorModel2.add(new Object[] { 35, 28, 40, 29 });
		vectorModel2.add(new Object[] { 41, 29, 46, 33 });
		vectorModel2.add(new Object[] { 47, 33, 50, 35 });
		vectorModel2.add(new Object[] { 51, 35, 56, 37 });
		vectorModel2.add(new Object[] { 57, 36, 70, 39 });
		vectorModel2.add(new Object[] { 71, 39, 80, 43 });
 
		return vectorModel2;
	}
}

Other Vector2D Series Properties

Arrow Angle

It is possible to set arrow angle for Vector Strategy, which determines what angle arrow and vector makes - angles from [5;45] interval are appreciated.

Setting angle:

((VectorStrategy)vector1.getStrategy()).setArrowAngle(15); //angle for vectors
((VectorStrategy)vector2.getStrategy()).setArrowAngle(30); //angle for sum

Vector2D Arrow Angle Demonstration

Figure 4.1.7.2 Vector2D Arrow Angle Demonstration

Inner Head Position

There is a possibility to set arrow's inner head's position using setInnerArrowHeadPosition() method. Values from [0.2;1] interval should be used.

((VectorStrategy)vector1.getStrategy()).setInnerArrowHeadPosition(1d); //position for vectors
((VectorStrategy)vector2.getStrategy()).setArrowAngle(0.8d); //position for subtraction

Vector2D Inner Arrow Head Demonstration

Figure 4.1.7.3 Vector2D Inner Arrow Head Demonstration