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| import java.io.IOException;
import java.util.Comparator;
import java.util.List;
import java.util.function.Function;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.control.Button;
import javafx.scene.layout.VBox;
//import javafx.scene.layout.HBox;
//import javafx.scene.layout.StackPane;
//import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Main extends Application {
private XYChart.Series series1, series2, series3; // les séries du graphique, en attribut
private NumberAxis xAxis;
private NumberAxis yAxis;
private static final String NOM_DU_FICHIER = "D:\\Doc\\java\\eq\\temperature\\src\\application\\cord.in";
@Override public void start(Stage stage) throws NumberFormatException, IOException {
stage.setTitle("Area Chart Sample");
series1 = new XYChart.Series();
series1.setName("Boule1");
series2 = new XYChart.Series();
series2.setName("Boule2");
series3 = new XYChart.Series();
series3.setName("Boule3");
List<XYChart.Data> data = ValueReading.loadPoints(NOM_DU_FICHIER);
long maxAbs = max(data,XYChart.Data<Long,Long>::getXValue);
long minAbs = min(data,XYChart.Data<Long,Long>::getXValue);
long pas = maxAbs/10;
xAxis = new NumberAxis(minAbs, maxAbs, pas); // min,max,pas de l'axe d'absicce
long maxOrd = max(data,XYChart.Data<Long,Long>::getYValue);
long minOrd = min(data,XYChart.Data<Long,Long>::getYValue);
yAxis = new NumberAxis(minOrd, maxOrd, 5);
refreshSeries(data);
final AreaChart<Number,Number> ac =
new AreaChart<>(xAxis,yAxis);
xAxis.setForceZeroInRange(true);
ac.setTitle("Temperature Monitoring (in Degrees C)");
Button btn = new Button();
btn.setText("Live Refresh ... ");
btn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
try {
refreshSeries(NOM_DU_FICHIER);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
btn.setTranslateX(600);
btn.setTranslateY(10);
// btn.setTranslateX(500);
// btn.setTranslateY(394);
VBox vbox = new VBox();
Scene scene = new Scene(vbox, 1500, 1000);
ac.getData().addAll(series1, series2, series3);
vbox.getChildren().addAll(btn, ac);
stage.setHeight(480);
stage.setWidth(800);
// primaryStage.show();
// Scene scene = new Scene(ac,800,600);
//scene.getStylesheets().add("areachartsample/Chart.css");
ac.setHorizontalZeroLineVisible(true);
// ac.getData().addAll(series1, series2, series3);
stage.setScene(scene);
stage.show();
}
private long max(List<XYChart.Data> data,Function<XYChart.Data,Long> function) {
return data.stream().map(function).max(Comparator.naturalOrder()).orElse(0L);
}
private long min(List<XYChart.Data> data, Function<XYChart.Data,Long> function) {
return data.stream().map(function).min(Comparator.naturalOrder()).orElse(0L);
}
private void refreshSeries(String filename) throws IOException {
List<XYChart.Data> data = ValueReading.loadPoints(filename);
refreshSeries(data);
refreshAxis(data);
}
private void refreshAxis(List<XYChart.Data> data) {
long maxAbs = max(data,XYChart.Data<Long,Long>::getXValue);
long minAbs = min(data,XYChart.Data<Long,Long>::getXValue);
xAxis.setLowerBound(minAbs);
xAxis.setUpperBound(maxAbs);
long maxOrd = max(data,XYChart.Data<Long,Long>::getYValue);
long minOrd = min(data,XYChart.Data<Long,Long>::getYValue);
yAxis.setLowerBound(minOrd);
yAxis.setUpperBound(maxOrd);
}
private void refreshSeries(List<XYChart.Data> data) throws IOException {
series1.getData().clear(); // on supprime toutes les données de series1
series2.getData().clear(); // on supprime toutes les données de series2
series3.getData().clear(); // on supprime toutes les données de series3
data.stream().limit(4).forEach(point-> series1.getData().add(point)); // première série (limit donne le nombre d'éléments à parcourir)
data.stream().skip(4).limit(4).forEach(point-> series2.getData().add(point)); // deuxième série (skip donne le nombre d'éléments qu'on "saute", qu'on ignore
data.stream().skip(8).limit(4).forEach(point-> series3.getData().add(point)); // troisième série
}
public static void main(String[] args) {
launch(args);
}
} |
