Java BarChart.setBarGap(double value)
Syntax
BarChart.setBarGap(double value) has the following syntax.
public final void setBarGap(double value)
Example
In the following code shows how to use BarChart.setBarGap(double value) method.
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.chart.BarChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.chart.XYChart.Series;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
/*www . j a v a 2 s.com*/
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
CategoryAxis xAxis = new CategoryAxis();
NumberAxis yAxis = new NumberAxis();
BarChart barChart = new BarChart(xAxis, yAxis,getChartData());
barChart.setBarGap(0.2);
barChart.setTitle("A");
primaryStage.setTitle("BarChart example");
StackPane root = new StackPane();
root.getChildren().add(barChart);
primaryStage.setScene(new Scene(root, 400, 250));
primaryStage.show();
}
private ObservableList<XYChart.Series<String, Double>> getChartData() {
double aValue = 17.56;
double cValue = 17.06;
ObservableList<XYChart.Series<String, Double>> answer = FXCollections.observableArrayList();
Series<String, Double> aSeries = new Series<String, Double>();
Series<String, Double> cSeries = new Series<String, Double>();
aSeries.setName("a");
cSeries.setName("C");
for (int i = 2011; i < 2021; i++) {
) aSeries.getData().add(new XYChart.Data(Integer.toString(i), aValue));
aValue = aValue + Math.random() - .5;
cSeries.getData().add(new XYChart.Data(Integer.toString(i), cValue));
cValue = cValue + Math.random() - .5;
}
answer.addAll(aSeries, cSeries);
return answer;
}
}