JavaFX的着色XYChart.Series(JavaFX Coloring XYChart.Se

我想我的风格JavaFX的区域 - 表，但无法找到任何方式来设置颜色为特定系列。 我知道，我可以通过CSS的风格，但我想这样做的代码也。

我怎样才能做到这一点？ 1）如何设置一个颜色区域，图表与内联样式？

谢谢您的帮助。

@Jose：

我以前这样做过，但它不为我工作！

@Override
    public void start(Stage primaryStage)
    {
        final AreaChart<String, Number> areaChart = new AreaChart<>(new CategoryAxis(), new NumberAxis());

        ObservableList<XYChart.Data<String, Integer>> xyList = FXCollections.observableArrayList(
            new XYChart.Data<>("P1", 30),
            new XYChart.Data<>("P2", 40),
            new XYChart.Data<>("P3", 30));
        XYChart.Series series = new XYChart.Series(xyList);
        areaChart.getData().addAll(series);

        Button button = new Button("Change style");
        button.setOnAction(new EventHandler<ActionEvent>()
        {

            @Override
            public void handle(ActionEvent arg0)
            {
                int redColor = 0, greenColor = 127, blueColor = 195;
                double opacity = 0.3;
                areaChart.setStyle("CHART_COLOR_1: rgb(" + redColor + "," + greenColor + "," + blueColor + "); "
                    + "CHART_COLOR_1_TRANS_20: rgba(" + redColor + "," + greenColor + "," + blueColor + "," + opacity + ");");

            }
        });

        VBox root = new VBox();
        root.getChildren().addAll(button, areaChart);
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

Answer 1:

这个答案并不在Java 7的工作，因为默认的CSS样式表是里海，不摩德纳。

在里海这些常数的主要调色板没有定义： CHART_COLOR_1 ， CHART_COLOR_1_TRANS_20 ，...

所以，如果你想申请联样式做的一种方式是通过查找发现该系列并应用到造型符号，线条和/或区域的基础上，他们的CSS选择器。 例如：

@Override
public void start(Stage primaryStage) {

    final AreaChart<String, Number> areaChart = new AreaChart<>(new CategoryAxis(), new NumberAxis());

    ObservableList<XYChart.Data<String, Integer>> xyList = FXCollections.observableArrayList(
        new XYChart.Data<>("P1", 30),
        new XYChart.Data<>("P2", 40),
        new XYChart.Data<>("P3", 30));
    XYChart.Series series = new XYChart.Series(xyList);
    areaChart.getData().addAll(series);

    Scene scene = new Scene(areaChart, 400, 300);
    primaryStage.setScene(scene);
    primaryStage.show();

    int redColor = 0, greenColor = 127, blueColor = 195;
    double opacity = 0.3;

    for(Node symbol : areaChart.lookupAll(".default-color0.chart-area-symbol")){
        symbol.setStyle("-fx-background-color: rgb(" + redColor + "," + greenColor + "," + blueColor + "), white; ");
    }
    Node line = areaChart.lookup(".default-color0.chart-series-area-line");
    line.setStyle("-fx-stroke: rgb(" + redColor + "," + greenColor + "," + blueColor + "); ");
    Node area = areaChart.lookup(".default-color0.chart-series-area-fill");
    area.setStyle("-fx-fill: rgba(" + redColor + "," + greenColor + "," + blueColor + "," + opacity + "); ");
}

编辑

上述解决方案将工作到8大系列。

对于任何数量的系列的另一种方法也可以工作的：

    int numSeries=10;
    final int[] redColor = new int[numSeries];
    Arrays.fill(redColor, 0);
    final int[] greenColor =new int[numSeries]; 
    Arrays.fill(greenColor, 127);
    final int[] blueColor = new int[numSeries];
    Arrays.fill(blueColor, 195);
    double opacity = 0.3;


    for(int i=0; i<numSeries; i++){
        for(Node n : areaChart.lookupAll(".series"+i)){
            n.setStyle("-fx-background-color: rgb(" + redColor[i] + "," + greenColor[i] + "," + blueColor[i] + "), white; "
                    + "-fx-stroke: rgb(" + redColor[i] + "," + greenColor[i] + "," + blueColor[i] + "); "
                    + "-fx-fill: rgba(" + redColor[i] + "," + greenColor[i] + "," + blueColor[i] + "," + opacity + "); ");
        }
    }

Answer 2:

您可以使用此：

chart-series-area-line series<i> default-color<j>

哪里是该系列的指数，是该系列的显色指数

在CSS参考specificated 此相同，你可以用你的areaChart的功能的setStyle使用

您可以使用此：

Node line = areaChart.lookup(".default-color0.chart-series-area-line");
line.setStyle("-fx-stroke: rgb(" + redColor + "," + greenColor + "," + blueColor + "); ");

文章来源: JavaFX Coloring XYChart.Series