javafx中的动态条形图
您好,我正在尝试创建显示字段值的条形图。字段值通过排序算法更改,图表应显示任何更改javafx中的动态条形图,java,javafx,fxml,Java,Javafx,Fxml,您好,我正在尝试创建显示字段值的条形图。字段值通过排序算法更改,图表应显示任何更改 public class FXMLDocumentController implements Initializable { static int[] pole = new int[10]; // field int hodnota; @FXML // bar chart private BarChart barChart; @FXML
public class FXMLDocumentController implements Initializable {
static int[] pole = new int[10]; // field
int hodnota;
@FXML // bar chart
private BarChart barChart;
@FXML
private void handleButtonAction(ActionEvent ev) { //button for filling up new random graph
for (int i = 0; i < 10; i++) {
hodnota = intValue((StrictMath.random() * 100));
pole[i] = hodnota;
}
final CategoryAxis osaX = new CategoryAxis();
final NumberAxis osaY = new NumberAxis();
ObservableList<XYChart.Series<String, Number>> barChartData = FXCollections.observableArrayList();
final BarChart.Series<String, Number> series1 = new BarChart.Series<>();
series1.getData().add(new XYChart.Data<>("1", pole[0]));
series1.getData().add(new XYChart.Data<>("2", pole[1]));
series1.getData().add(new XYChart.Data<>("3", pole[2]));
series1.getData().add(new XYChart.Data<>("4", pole[3]));
series1.getData().add(new XYChart.Data<>("5", pole[4]));
series1.getData().add(new XYChart.Data<>("6", pole[5]));
series1.getData().add(new XYChart.Data<>("7", pole[6]));
series1.getData().add(new XYChart.Data<>("8", pole[7]));
series1.getData().add(new XYChart.Data<>("9", pole[8]));
series1.getData().add(new XYChart.Data<>("10", pole[9]));
barChartData.add(series1);
barChart.setData(barChartData);
}
@FXML // button which starts sorting algorhitm, it is changing values in field
private void bubbleButton(ActionEvent ev) {
BubbleSort vlakno=new BubbleSort("vypoctoveVlakno");
vlakno.start();
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
公共类FXMLDocumentController实现可初始化{
静态整数[]极点=新整数[10];//字段
霍德诺塔国际酒店;
@FXML//条形图
私人条形图;
@FXML
私有void handleButtonAction(ActionEvent ev){//填充新随机图的按钮
对于(int i=0;i<10;i++){
hodnota=intValue((StrictMath.random()*100));
极点[i]=霍德诺塔;
}
最终类别Axis osaX=新类别Axis();
最终NumberAxis osaY=新的NumberAxis();
ObservableList barChartData=FXCollections.observableArrayList();
最终条形图.Series系列1=新的条形图.Series();
series1.getData().add(新的XYChart.Data(“1”,极点[0]);
series1.getData().add(新的XYChart.Data(“2”,极点[1]);
series1.getData().add(新的XYChart.Data(“3”,极点[2]);
series1.getData().add(新的XYChart.Data(“4”,极点[3]);
series1.getData().add(新的XYChart.Data(“5”,极点[4]);
series1.getData().add(新的XYChart.Data(“6”,极点[5]);
series1.getData().add(新的XYChart.Data(“7”,极点[6]);
series1.getData().add(新的XYChart.Data(“8”,极点[7]);
series1.getData().add(新的XYChart.Data(“9”,极点[8]);
series1.getData().add(新的XYChart.Data(“10”,极点[9]);
barChartData.add(系列1);
设置数据(barChartData);
}
@FXML//按钮,用于开始排序algorhitm,它正在更改字段中的值
私有无效气泡按钮(ActionEvent ev){
BubbleSort vlakno=新的BubbleSort(“vypoctoveVlakno”);
vlano.start();
}
@凌驾
公共void初始化(URL、ResourceBundle rb){
//待办事项
}
}
我已经尝试创建一个新线程,它应该一次又一次地加载数据,但没有成功。还尝试将其加载到FXML控制器中,但图形窗口被卡住。事实上我对这个很陌生
FXML文档,main刚刚从FXML加载stage
<AnchorPane id="AnchorPane" prefHeight="487.0" prefWidth="610.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="radicialgoritmy.FXMLDocumentController">
<children>
<Button fx:id="button" layoutX="14.0" layoutY="14.0" onAction="#handleButtonAction" text="Vygeneruj" />
<BarChart fx:id="barChart" animated="false" cache="true" layoutX="30.0" layoutY="188.0" legendVisible="false" prefHeight="292.0" prefWidth="552.0">
<xAxis>
<CategoryAxis fx:id="osaX" side="BOTTOM" />
</xAxis>
<yAxis>
<NumberAxis fx:id="osaY" side="LEFT" />
</yAxis>
</BarChart>
<Button fx:id="bubble" layoutX="100.0" layoutY="14.0" mnemonicParsing="false" onAction="#bubbleButton" text="BubbleSort" />
用于排序算法的类
class BubbleSort extends Thread {
public BubbleSort(final String jmeno) {
super(jmeno);
}
@Override
public void run() {
for (int i = 0; i < pole.length - 1; i++) {
for (int j = 0; j < pole.length - i - 1; j++) {
if (pole[j] < pole[j + 1]) {
final int tmp = pole[j];
pole[j] = pole[j + 1];
pole[j + 1] = tmp;
}
try {
Thread.sleep(250);
} catch (final InterruptedException ex) {
Logger.getLogger(BubbleSort.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
}
类BubbleSort扩展线程{
公共BubbleSort(最终字符串jmeno){
超级(jmeno);
}
@凌驾
公开募捐{
对于(int i=0;i
这里是mcve演示了一种将不断变化的数据耦合到条形图的机制
还有其他方法可以实现这种“绑定”,但我尽量保持简单
气泡排序算法与问题无关,与答案无关
,所以最好把它排除在外。mcve需要演示问题/答案,而不是应用程序:
import java.util.Random;
import javafx.beans.Observable;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ListChangeListener.Change;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
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.Data;
public class FXMLDocumentController {
@FXML private BarChart barChart;
private ObservableList<XYChart.Series<String, Number>> barChartData;
private ObservableList<DataItem> items;
private Random rnd = new Random();
private static int SIZE = 10;
@FXML
void initialize(){
//an observable collection of DataItem objects, each representing data of one bar
items = FXCollections.observableArrayList(
dataItem -> new Observable[] { dataItem.nameProperty(), dataItem.valueProperty()});
//initialize with random values
for (int i = 0; i < SIZE; i++) {
items.add(new DataItem(String.valueOf(i), rnd.nextInt(100)));
}
}
@FXML
private void handleButtonAction( ActionEvent ev) {
ObservableList<Data<String, Number>> seriesData = new DataConvertor(items).getData();
CategoryAxis osaX = new CategoryAxis();
NumberAxis osaY = new NumberAxis();
barChartData = FXCollections.observableArrayList();
BarChart.Series<String, Number> series1 = new BarChart.Series<>();
series1.setData(seriesData);
barChartData.add(series1);
barChart.setData(barChartData);
}
@FXML
private void bubbleButton( ActionEvent ev) {
BubbleSort vlakno=new BubbleSort(items);
vlakno.start();
}
}
//pojo to represent items of one bar
class DataItem {
private StringProperty name = new SimpleStringProperty(this, "name");
private IntegerProperty value = new SimpleIntegerProperty(this, "value");
public DataItem( String name, int value) {
setName(name);
setValue(value);
}
public StringProperty nameProperty() {
return name;
}
public String getName() {
return this.nameProperty().get();
}
public void setName( String name) {
this.nameProperty().set(name);
}
public IntegerProperty valueProperty() {
return value;
}
public int getValue() {
return this.valueProperty().get();
}
public void setValue( int value) {
this.valueProperty().set(value);
}
}
//simple coupling between items and graph data
class DataConvertor{
ObservableList<DataItem> items;
ObservableList<Data<String, Number>>data;
DataConvertor( ObservableList<DataItem> items) {
super();
this.items = items;
data = FXCollections.observableArrayList();
items.forEach(item -> data.add(new Data<>(item.getName(), item.getValue())));
items.addListener( ( Change<? extends DataItem> arg0 ) -> update());
}
void update() {
for(int i =0; i < data.size(); i++){
Data<String, Number> d = data.get(i);
d.setYValue(items.get(i).getValue());
}
data.clear();
items.forEach(item -> data.add(new Data<>(item.getName(), item.getValue())));
}
ObservableList<Data<String, Number>>getData(){
return data;
}
}
请注意,中发布的fxml文件不完整。缺少这两个标签:
</children>
</AnchorPane>
我修改了你的程序,只是想给你一个实现这一点的方法。我使用Timeline
来实现BubbleSort
主要
控制器
import java.net.URL;
导入java.util.ArrayList;
导入java.util.array;
导入java.util.List;
导入java.util.ResourceBundle;
导入javafx.animation.KeyFrame;
导入javafx.animation.Timeline;
导入javafx.collections.FXCollections;
导入javafx.collections.ObservableList;
导入javafx.event.ActionEvent;
导入javafx.fxml.fxml;
导入javafx.fxml.Initializable;
导入javafx.scene.chart.BarChart;
导入javafx.scene.chart.CategoryAxis;
导入javafx.scene.chart.NumberAxis;
导入javafx.scene.chart.XYChart;
导入javafx.util.Duration;
导入静态oracle.jrockit.jfr.events.Bits.intValue;
公共类FXMLDocumentController实现可初始化{
时间线;
静态整数[]极点=新整数[10];//字段
霍德诺塔国际酒店;
int ii;
@FXML//条形图
私人条形图;
@FXML
私有void handleButtonAction(ActionEvent ev){//填充新随机图的按钮
对于(int i=0;i<10;i++){
hodnota=intValue((StrictMath.random()*100));
极点[i]=霍德诺塔;
}
最终类别Axis osaX=新类别Axis();
最终NumberAxis osaY=新的NumberAxis();
ObservableList barChartData=FXCollections.observableArrayList();
最终条形图.Series系列1=新的条形图.Series();
series1.getData().add(新的XYChart.Data(“1”,极点[0]);
series1.getData().add(新的XYChart.Data(“2”,极点[1]);
series1.getData().add(新的XYChart.Data(“3”,极点[2]);
series1.getData().add(新的XYChart.Data(“4”,极点[3]);
series1.getData().add(新的XYChart.Data(“5”,极点[4]);
series1.getData().add(新的XYChart.Data(“6”,极点[5]);
series1.getData().add(新的XYChart.Data(“7”,极点[6]);
series1.getData().add(新的XYChart.Data(“8”,极点[7]);
series1.getData().add(新的XYChart.Data(“9”,极点[8]);
series1.getData().add(新的XYChart.Data(“10”,极点[9]);
barChartData.add(系列1);
设置数据(barChartData);
ii=0;
时间线=新时间线(新关键帧(持续时间。秒(1),(事件)->{
System.out.println(ii+“:”+数组.toString(pole));
对于(int j=0;j</children>
</AnchorPane>
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
/**
*
* @author sedri
*/
public class RradiciAlgoritmy extends Application {
@Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.ResourceBundle;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.chart.BarChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.util.Duration;
import static oracle.jrockit.jfr.events.Bits.intValue;
public class FXMLDocumentController implements Initializable {
Timeline timeline;
static int[] pole = new int[10]; // field
int hodnota;
int ii;
@FXML // bar chart
private BarChart barChart;
@FXML
private void handleButtonAction(ActionEvent ev) { //button for filling up new random graph
for (int i = 0; i < 10; i++) {
hodnota = intValue((StrictMath.random() * 100));
pole[i] = hodnota;
}
final CategoryAxis osaX = new CategoryAxis();
final NumberAxis osaY = new NumberAxis();
ObservableList<XYChart.Series<String, Number>> barChartData = FXCollections.observableArrayList();
final BarChart.Series<String, Number> series1 = new BarChart.Series<>();
series1.getData().add(new XYChart.Data<>("1", pole[0]));
series1.getData().add(new XYChart.Data<>("2", pole[1]));
series1.getData().add(new XYChart.Data<>("3", pole[2]));
series1.getData().add(new XYChart.Data<>("4", pole[3]));
series1.getData().add(new XYChart.Data<>("5", pole[4]));
series1.getData().add(new XYChart.Data<>("6", pole[5]));
series1.getData().add(new XYChart.Data<>("7", pole[6]));
series1.getData().add(new XYChart.Data<>("8", pole[7]));
series1.getData().add(new XYChart.Data<>("9", pole[8]));
series1.getData().add(new XYChart.Data<>("10", pole[9]));
barChartData.add(series1);
barChart.setData(barChartData);
ii = 0;
timeline = new Timeline(new KeyFrame(Duration.seconds(1), (event) -> {
System.out.println(ii + ": " + Arrays.toString(pole));
for (int j = 0; j < pole.length - (ii) - 1; j++) {
if (pole[j] < pole[j + 1]) {
final int tmp = pole[j];
pole[j] = pole[j + 1];
pole[j + 1] = tmp;
}
}
//Create new data and set it to the series
List<XYChart.Data<String, Number>> tempData = new ArrayList();
for(int i = 0; i < pole.length; i++)
{
tempData.add(new XYChart.Data(Integer.toString(i), pole[i]));
}
barChartData.get(0).getData().setAll(tempData);
ii++;
}));
timeline.setCycleCount(pole.length - 1);
}
@FXML // button which starts sorting algorhitm, it is changing values in field
private void bubbleButton(ActionEvent ev) {
timeline.play();
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.chart.BarChart?>
<?import javafx.scene.chart.CategoryAxis?>
<?import javafx.scene.chart.NumberAxis?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane id="AnchorPane" prefHeight="487.0" prefWidth="610.0" xmlns="http://javafx.com/javafx/8.0.171" xmlns:fx="http://javafx.com/fxml/1" fx:controller="radicialgoritmy.FXMLDocumentController">
<children>
<Button fx:id="button" layoutX="14.0" layoutY="14.0" onAction="#handleButtonAction" text="Vygeneruj" />
<BarChart fx:id="barChart" animated="false" cache="true" layoutX="30.0" layoutY="188.0" legendVisible="false" prefHeight="292.0" prefWidth="552.0">
<xAxis>
<CategoryAxis fx:id="osaX" side="BOTTOM" />
</xAxis>
<yAxis>
<NumberAxis fx:id="osaY" side="LEFT" />
</yAxis>
</BarChart>
<Button fx:id="bubble" layoutX="100.0" layoutY="14.0" mnemonicParsing="false" onAction="#bubbleButton" text="BubbleSort" />
</children>
</AnchorPane>