Wednesday, September 4, 2013

Apply custom style on AreaChart

The post "Area Chart with two series of data" use default style of AreaChart. By applying CSS, you can define your own style on chart.

AreaChart with custom style
AreaChart with custom style

Create chartStyle.css in the same folder of the main java, define style of the AreaChart.
.default-color0.chart-area-symbol { -fx-background-color: #FFFFFFFF, #FFFFFFFF; }
.default-color1.chart-area-symbol { -fx-background-color: #00000000, #00000000; }
 
.default-color0.chart-series-area-line { -fx-stroke: #FF0000; }
.default-color1.chart-series-area-line { -fx-stroke: #0000FF; }
 
.default-color0.chart-series-area-fill { -fx-fill: #00FF00; }
.default-color1.chart-series-area-fill { -fx-fill: #00000000; }


Main java code.
package javafx_charts;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;

/**
 *
 * @web http://java-buddy.blogspot.com/
 */
public class JavaFX_Charts extends Application {
    
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("java-buddy.blogspot.com");
        Group root = new Group();
          
        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis();
          
        xAxis.setLabel("Month");
        yAxis.setLabel("Value");

        final AreaChart<String,Number> areaChart = new AreaChart<>(xAxis,yAxis);
  
        areaChart.setTitle("AreaChart");
         
        //Series 1
        XYChart.Series series1 = new XYChart.Series();
        series1.setName("XYChart.Series 1");
          
        series1.getData().add(new XYChart.Data("January", 100));
        series1.getData().add(new XYChart.Data("February", 200));
        series1.getData().add(new XYChart.Data("March", 50));
        series1.getData().add(new XYChart.Data("April", 75));
        series1.getData().add(new XYChart.Data("May", 110));
        series1.getData().add(new XYChart.Data("June", 300));
        series1.getData().add(new XYChart.Data("July", 111));
        series1.getData().add(new XYChart.Data("August", 30));
        series1.getData().add(new XYChart.Data("September", 75));
        series1.getData().add(new XYChart.Data("October", 55));
        series1.getData().add(new XYChart.Data("November", 225));
        series1.getData().add(new XYChart.Data("December", 99));
          
        //Series 2
        XYChart.Series series2 = new XYChart.Series();
        series2.setName("XYChart.Series 2");
          
        series2.getData().add(new XYChart.Data("January", 150));
        series2.getData().add(new XYChart.Data("February", 100));
        series2.getData().add(new XYChart.Data("March", 60));
        series2.getData().add(new XYChart.Data("April", 40));
        series2.getData().add(new XYChart.Data("May", 30));
        series2.getData().add(new XYChart.Data("June", 100));
        series2.getData().add(new XYChart.Data("July", 100));
        series2.getData().add(new XYChart.Data("August", 10));
        series2.getData().add(new XYChart.Data("September", 175));
        series2.getData().add(new XYChart.Data("October", 155));
        series2.getData().add(new XYChart.Data("November", 125));
        series2.getData().add(new XYChart.Data("December", 150));
 
        areaChart.getData().addAll(series1, series2);
        
        areaChart.getStylesheets().add(
                getClass().getResource("chartStyle.css").toExternalForm());
              
        root.getChildren().addAll(areaChart);
        primaryStage.setScene(new Scene(root, 500, 400));
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}


Reference: Styling Charts with CSS.

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