java-如何将多个LineCharts放入一个场景/舞台？

我正在寻找一种将3个LineCharts放入单个窗口的方法.我的意思是我想让它们彼此相邻,或者彼此相邻.

我正在寻找实现的方法,但找不到任何东西.我试图搜索如何将多个场景整合到一个阶段…
如何将多个LineCharts放入一个场景中…
等等…
没有任何成功.

这是我的代码：

 private void drawGraph(Stage stage, Double[] axisValues) {
    //defining the axes
    final NumberAxis xAxis = new NumberAxis();
    final NumberAxis yAxis = new NumberAxis();
    xAxis.setLabel("Time");
    //creating the chart
    final LineChart<Number,Number> lineChart = 
            new LineChart<Number,Number>(xAxis,yAxis);

    lineChart.setTitle("Axis' values");
    //defining a series
    XYChart.Series series = new XYChart.Series();
    series.setName("X Axis");
    //populating the series with data
   for (int i = 1; i<33; i++){
       series.getData().add(new XYChart.Data(i, axisValues[i]));
    }

    //Scene scene  = new Scene(lineChart,800,600);
   Scene scene  = new Scene(lineChart,800,600);
    lineChart.getData().add(series);

    stage.setScene(scene);
    stage.show();
 }

解决方法:

问题

一个阶段(窗口)中只有一个场景,因此您不能在同一阶段添加多个场景.但是您可以更改舞台的场景.

解

在Scene Builder中,您可以在预览中查看可能的解决方案.将三个LineCharts添加到FlowPane,然后,将FlowPane添加到场景.

您的代码中存在一些类型安全问题,因此我创建了一个完整的示例来向您展示如何实现.

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;

public class FlowChart extends Application {

  @Override
  public void start(Stage primaryStage) {

    Double[] data = {0.1, 0.4, 0.5, 0.7, 0.9, 1.0};

    LineChart<Number, Number> lc = createLineChart(data);
    LineChart<Number, Number> lc1 = createLineChart(data);
    LineChart<Number, Number> lc2 = createLineChart(data);

    FlowPane root = new FlowPane();
    root.getChildren().addAll(lc, lc1, lc2);

    Scene scene = new Scene(root, 800, 600);

    primaryStage.setTitle("Hello World!");
    primaryStage.setScene(scene);
    primaryStage.show();
  }

  /**
   * @param args the command line arguments
   */
  public static void main(String[] args) {
    launch(args);
  }

  private LineChart<Number, Number> createLineChart(Double[] axisValues) {
    //defining the axes
    final NumberAxis xAxis = new NumberAxis();
    final NumberAxis yAxis = new NumberAxis();
    xAxis.setLabel("Time");
    //creating the chart
    final LineChart<Number, Number> lineChart = new LineChart<>(xAxis, yAxis);

    lineChart.setTitle("Axis' values");
    //defining a series
    XYChart.Series<Number, Number> series = new LineChart.Series<>();
    series.setName("X Axis");
    //populating the series with data
    for (int i = 0; i < axisValues.length; i++) {
      XYChart.Data<Number, Number> data = new LineChart.Data<>(i, axisValues[i]);
      series.getData().add(data);
    }
    lineChart.getData().add(series);
    return lineChart;
  }
}

结果

标签：scene,linechart,javafx,java
来源： https://codeday.me/bug/20191028/1950286.html