Javafx里面LineChart如何隐藏一个dataseries 显示隐藏

来源：蜘蛛抓取(WebSpider) 时间：2017-06-23 21:43 标签： dataseries 显示隐藏
JavaFX LineChart - 推酷
JavaFX LineChart
The JavaFX LineChart can draw line charts inside your JavaFX applications. The JavaFX LineChart component is represented by the class javafx.scene.chart.LineChart .
LineChart X Axis and Y Axis
A JavaFX LIneChart draws a line chart. A line chart is a two-dimensional graph, meaning the graph has an X axis and a Y axis. Line charts typically have two numerical axes. A numerical axis is represented by the JavaFX class javafx.scene.chart.NumberAxis .
You need to define the X axis and Y axis used by a LineChart . Here is an example of creating two JavaFX NumberAxis instances:
NumberAxis xAxis = new NumberAxis();
xAxis.setLabel(&No of employees&);
NumberAxis yAxis = new NumberAxis();
yAxis.setLabel(&Revenue per employee&);
Creating a LineChart
You create a JavaFX LineChart component by creating an instance of the LineChart class. You need to pass an X axis and Y axis to the LineChart constructor. Here is a JavaFX LineChart instantiation example:
NumberAxis xAxis = new NumberAxis();
xAxis.setLabel(&No of employees&);
NumberAxis yAxis = new NumberAxis();
yAxis.setLabel(&Revenue per employee&);
LineChart lineChart = new LineChart(xAxis, yAxis);
LineChart Data Series
To get a JavaFX LineChart component to display any dots, you must provide it with a data series . A data series is a list of data points. Each data point contains an X value and a Y value. Here is an example of creating a data series and adding it to a LineChart component:
XYChart.Series dataSeries1 = new XYChart.Series();
dataSeries1.setName(&2014&);
dataSeries1.getData().add(new XYChart.Data( 1, 567));
dataSeries1.getData().add(new XYChart.Data( 5, 612));
dataSeries1.getData().add(new XYChart.Data(10, 800));
dataSeries1.getData().add(new XYChart.Data(20, 780));
dataSeries1.getData().add(new XYChart.Data(40, 810));
dataSeries1.getData().add(new XYChart.Data(80, 850));
lineChart.getData().add(dataSeries1);
First an XYChart.Series instance is created and given a name. Second, 6 XYChart.Data instances are added to the XYChart.Series object. Third, the XYChart.Series object is added to a LineChart object.
It is possible to add multiple data series to the LineChart . Just repeat the above code for additional data series.
Adding a LineChart to the Scene Graph
To make a LineChart visible you must add it to the JavaFX scene graph. This means adding the LineChart to a Scene object or add the LineChart to a layout component which is added to a Scene object.
Here is an example that adds a LineChart to the JavaFX scene graph:
package com.jenkov.javafx.
import javafx.application.A
import javafx.scene.S
import javafx.scene.chart.LineC
import javafx.scene.chart.NumberA
import javafx.scene.chart.XYC
import javafx.scene.layout.VB
import javafx.stage.S
public class LineChartExperiments extends Application {
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle(&LineChart Experiments&);
NumberAxis xAxis = new NumberAxis();
xAxis.setLabel(&No of employees&);
NumberAxis yAxis = new NumberAxis();
yAxis.setLabel(&Revenue per employee&);
LineChart lineChart = new LineChart(xAxis, yAxis);
XYChart.Series dataSeries1 = new XYChart.Series();
dataSeries1.setName(&2014&);
dataSeries1.getData().add(new XYChart.Data( 1, 567));
dataSeries1.getData().add(new XYChart.Data( 5, 612));
dataSeries1.getData().add(new XYChart.Data(10, 800));
dataSeries1.getData().add(new XYChart.Data(20, 780));
dataSeries1.getData().add(new XYChart.Data(40, 810));
dataSeries1.getData().add(new XYChart.Data(80, 850));
lineChart.getData().add(dataSeries1);
VBox vbox = new VBox(lineChart);
Scene scene = new Scene(vbox, 400, 200);
primaryStage.setScene(scene);
primaryStage.setHeight(300);
primaryStage.setWidth(1200);
primaryStage.show();
public static void main(String[] args) {
Application.launch(args);
The application resulting from running this application would look similar to this:
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