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ScatterAndBubbleRendererSample.java
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ScatterAndBubbleRendererSample.java
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package de.gsi.chart.samples;
import java.io.BufferedReader;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Collectors;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.stage.Stage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import de.gsi.chart.Chart;
import de.gsi.chart.XYChart;
import de.gsi.chart.axes.spi.DefaultNumericAxis;
import de.gsi.chart.marker.DefaultMarker;
import de.gsi.chart.plugins.DataPointTooltip;
import de.gsi.chart.plugins.Zoomer;
import de.gsi.chart.renderer.ErrorStyle;
import de.gsi.chart.renderer.LineStyle;
import de.gsi.chart.renderer.spi.ErrorDataSetRenderer;
import de.gsi.dataset.spi.DefaultDataSet;
import de.gsi.dataset.spi.DefaultErrorDataSet;
import de.gsi.dataset.utils.ProcessingProfiler;
/**
* example to illustrate bubble- and scatter-type plot using either the DataSetError interface or (more customisable)
* DataStyle Marker interface.
*
* @author rstein
*/
public class ScatterAndBubbleRendererSample extends Application {
private static final Logger LOGGER = LoggerFactory.getLogger(ScatterAndBubbleRendererSample.class);
private static String demoDataFile = "testdata/2017_OECD_data.csv";
private final Map<String, Double> lifeExpectancyWomen = new ConcurrentHashMap<>();
private final Map<String, Double> lifeExpectancyMen = new ConcurrentHashMap<>();
private final Map<String, Double> gdpPerCapita = new ConcurrentHashMap<>();
private final Map<String, Double> population = new ConcurrentHashMap<>();
private double maxPopulation = 1.0;
private void loadDemoData(final String fileName) {
try (BufferedReader csvReader = Files
.newBufferedReader(Paths.get(this.getClass().getResource(fileName).toURI()))) {
// skip first row
String row = csvReader.readLine();
// LOCATION,TIME,LIFEEXP65 – WOMEN,LIFEEXP65 – MEN,TIME,USD_CAP,TIME,MLN_PER
while ((row = csvReader.readLine()) != null) {
String[] data = row.split(",");
final double pop = 1e6 * Double.parseDouble(data[7]);
maxPopulation = Math.max(maxPopulation, pop);
lifeExpectancyWomen.put(data[0], 65.0 + Double.parseDouble(data[2]));
lifeExpectancyMen.put(data[0], 65.0 + Double.parseDouble(data[3]));
gdpPerCapita.put(data[0], Double.parseDouble(data[5]));
population.put(data[0], pop);
}
} catch (IOException | URISyntaxException e) {
if (LOGGER.isErrorEnabled()) {
LOGGER.atError().setCause(e).log("InterruptedException");
}
}
}
@Override
public void start(final Stage primaryStage) {
// initialises Map based on https://data.oecd.org/ data
loadDemoData(demoDataFile);
ProcessingProfiler.setVerboseOutputState(true);
ProcessingProfiler.setLoggerOutputState(true);
ProcessingProfiler.setDebugState(false);
DefaultErrorDataSet bubbleDataSet1a = new DefaultErrorDataSet("women");
DefaultErrorDataSet bubbleDataSet1b = new DefaultErrorDataSet("men");
DefaultDataSet bubbleDataSet2a = new DefaultDataSet("women");
DefaultDataSet bubbleDataSet2b = new DefaultDataSet("men");
Map<String, Double> sortedGDP = gdpPerCapita.entrySet().stream().sorted(Entry.comparingByValue()).collect(Collectors.toMap(Entry::getKey, Entry::getValue, (e1, e2) -> e2, LinkedHashMap::new));
// N.B. for the time the being the Zoomer plugin and Data reduction algorithm require
// DataSets to be sorted along the x coordinate
int count = 0;
for (Entry<String, Double> entry : sortedGDP.entrySet()) {
final String country = entry.getKey();
final double gdp = entry.getValue();
final double popSize = 0.2 * population.get(country) / maxPopulation;
// set bubble size as error of y (also possible to set it as error of X or both)
// N.B. Tip: Math.sqrt(..) since for the observer the surface are is more important than the diameter
bubbleDataSet1a.add(gdp, lifeExpectancyWomen.get(country), Math.sqrt(popSize), Math.sqrt(popSize), country);
bubbleDataSet1b.add(gdp, lifeExpectancyMen.get(country), Math.sqrt(popSize), Math.sqrt(popSize), country);
// set markerSize according to bubble size
bubbleDataSet2a.add(gdp, lifeExpectancyWomen.get(country), country);
bubbleDataSet2b.add(gdp, lifeExpectancyMen.get(country), country);
// N.B. markerSize is in pixel regardless of the xAxis or yAxis scale
String markerSize = "markerSize=" + 40 * Math.sqrt(population.get(country) / maxPopulation) + "; index="
+ count + ";";
bubbleDataSet2a.addDataStyle(count, markerSize);
bubbleDataSet2b.addDataStyle(count, markerSize);
if ("FRA".equals(country)) {
bubbleDataSet2a.addDataStyle(count, markerSize + "markerColor=darkblue; markerType=circle2;");
bubbleDataSet2b.addDataStyle(count, markerSize + "markerColor=darkred; markerType=circle2;");
} else if ("JPN".equals(country)) {
bubbleDataSet2a.addDataStyle(count, markerSize + "markerColor=green; markerType=diamond;");
bubbleDataSet2b.addDataStyle(count, markerSize + "markerColor=lightgreen; markerType=diamond;");
}
// for more marker types see DefaultMarker
count++;
}
Chart chart1 = getDefaultChart("Bubble-Chart via DataSetError interface");
final ErrorDataSetRenderer errorRenderer1 = new ErrorDataSetRenderer();
errorRenderer1.setMarkerSize(1);
errorRenderer1.setPolyLineStyle(LineStyle.NONE);
errorRenderer1.setErrorType(ErrorStyle.ERRORBARS);
errorRenderer1.setDrawMarker(false);
errorRenderer1.setDrawBubbles(true);
errorRenderer1.setAssumeSortedData(false); // !! important since DS is likely unsorted
chart1.getRenderers().setAll(errorRenderer1);
errorRenderer1.getDatasets().addAll(bubbleDataSet1a, bubbleDataSet1b);
primaryStage.setTitle(this.getClass().getSimpleName());
primaryStage.setScene(new Scene(chart1, 800, 600));
primaryStage.setOnCloseRequest(evt -> Platform.exit());
primaryStage.show();
// alternative solution using Marker and DataSet style
Stage secondaryStage = new Stage();
Chart chart2 = getDefaultChart("Scatter-Chart via addDataStyle(<index>, <String>) interface");
final ErrorDataSetRenderer errorRenderer2 = new ErrorDataSetRenderer();
errorRenderer2.setMarkerSize(5);
errorRenderer2.setPolyLineStyle(LineStyle.NONE);
errorRenderer2.setErrorType(ErrorStyle.NONE);
errorRenderer2.setDrawMarker(true);
errorRenderer2.setAssumeSortedData(false); // !! important since DS is likely unsorted
// set default marker either via
bubbleDataSet2a.setStyle("markerType=circle;");
bubbleDataSet2b.setStyle("markerType=circle;");
// or via global default, this also allows to set custom marker implementing the 'Marker' interface
errorRenderer2.setMarker(DefaultMarker.DIAMOND);
errorRenderer2.setDrawBubbles(false);
chart2.getRenderers().setAll(errorRenderer2);
errorRenderer2.getDatasets().addAll(bubbleDataSet2a, bubbleDataSet2b);
secondaryStage.setTitle(this.getClass().getSimpleName());
secondaryStage.setScene(new Scene(chart2, 800, 600));
secondaryStage.setOnCloseRequest(evt -> System.exit(0)); // NOPMD by rstein on 05/08/2019
secondaryStage.show();
}
private static Chart getDefaultChart(final String title) {
DefaultNumericAxis xAxis = new DefaultNumericAxis("GDP", "USD/capita");
xAxis.setAutoUnitScaling(true);
xAxis.setAutoRangePadding(0.05);
xAxis.setAutoRanging(false);
xAxis.setMin(15_000);
xAxis.setMax(75_000);
DefaultNumericAxis yAxis = new DefaultNumericAxis("life-expectancy", "years");
yAxis.setAutoRangePadding(0.05);
XYChart chart = new XYChart(xAxis, yAxis);
chart.setTitle(title);
chart.getPlugins().add(new Zoomer());
chart.getPlugins().add(new DataPointTooltip());
HBox.setHgrow(chart, Priority.ALWAYS);
return chart;
}
/**
* @param args the command line arguments
*/
public static void main(final String[] args) {
Application.launch(args);
}
}