这个问题与我几天前在这里发布的一个类似问题有关......
这是显示我希望图表出现在哪里的界面:
我想在右侧的大 JPanel 上显示图表。该图表的目的是将特定球员的统计数据与他们国家的平均水平和整体平均水平(三个条形图)进行比较。图表(应该)通过从文本框中获取玩家的名字(其中已经有“getPlayerName”的那个)知道要显示比较的玩家。就像我之前提到的类似问题一样,我创建了一个类(这次称为 PlayerVsCountryVsOverallChart) - 这将处理为这个特定统计数据构建图表。
“PlayerVsCountryVsOverallChart”类的代码非常相似,但我认为其中有一些逻辑阻止图表显示(甚至制作)。由于我的逻辑仍在开发中(与 JFreeCharts 相关),如果有人能帮我研究一下,我将不胜感激。
这是 PlayerVsCountryVsOverallChart 类的代码 - 减去必要的导入:
/**
* This class is responsible for displaying the chart for
* the "Player vs Country vs Overall" functionality in the
* "Single Player" tab.
* @author attfire1
*/
public class PlayerVsCountryVsOverallChart extends JPanel
{
private static final long serialVersionUID = 1L;
private ArrayList<Player> players;
private StatUtilities stats;
public String yAxisLabel = "";
private String chosenPlayer;
public String[] compareStatsOptions = new String[] { "Average Balls Bowled", "Average of Bowling Averages", "Average Career Length", "Average Economy Rate", "Average Number of Five Wicket Innings", "Average Innings Played", "Average Matches Played", "Average Runs Conceded", "Average Strike Rate", "Average Wickets Taken" };
;
/**
* This constructor is responsible for producing the stats bar chart in
* the "Single Player Stats" tab in AppInterface.
* @param applicationTitle
* @param chartTitle
* @param players The list of players to iterate through
* @param option The option which determines what statistics to display
* @param chosenPlayer The chosen player's name
*/
public PlayerVsCountryVsOverallChart(String applicationTitle, String chartTitle, ArrayList<Player> players, int option, String chosenPlayer) {
//super(applicationTitle);
this.players = players;
this.chosenPlayer = chosenPlayer;
stats = new StatUtilities();
final CategoryDataset dataset = createDataset(option, chosenPlayer);
// based on the dataset we create the chart
final JFreeChart chart = createChart(dataset, applicationTitle);
// we put the chart into a panel
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
// Don't forget me...
setLayout(new BorderLayout());
add(chartPanel);
}
/**
* This method returns the nth occurrence of a
* character in a given string.
*
* Sourced from https://stackoverflow.com/questions/3976616/how-to-find-nth-occurrence-of-character-in-a-string.
* @param str The string to get the index of a character from.
* @param c The character to get the index of.
* @param n What occurrence of character to retrieve.
* @return The nth occurrence of a character.
*/
public static int nthOccurrence(String str, char c, int n) {
int pos = str.indexOf(c, 0);
while (n-- > 0 && pos != -1)
pos = str.indexOf(c, pos+1);
return pos;
}
/** * Creates a sample dataset */
private CategoryDataset createDataset(int graphDisplayOption, String playerChosen) {
// row keys... "series"
final String player = "Player";
final String country = "Country";
final String overall = "Overall";
ArrayList<String> countries = new ArrayList<String>();
for (Player p : players) {
countries.add(p.getCountryName());
}
//these are also the "column keys"
Set<String> countryNames = new HashSet<String>(countries);
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
/*
* The below code block uses a switch statement to determine
* which type of stats to display in the graph (country by country).
*
* Options for the switch statement are as follows:
*
* 1 = Average Balls Bowled
* 2 = Average of Bowling Averages
* 3 = Average Career Lengths
* 4 = Average Economy Rates
* 5 = Average Number of 5 Wicket Innings
* 6 = Average Innings Played
* 7 = Average Matches Played
* 8 = Average Runs Conceded
* 9 = Average Strike Rates
* 10 = Average WicketsTaken
*/
for(int i = 0; i < players.size(); i++)
{
//if the player's name in iteration i equals the chosen player's name
if(players.get(i).getPlayerName().equals(playerChosen))
{
switch(graphDisplayOption)
{
case 1:
yAxisLabel = compareStatsOptions[0];
dataset.addValue(players.get(i).getBallsBowled(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveBallsBowled(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveBallsBowled(players), overall, players.get(i).getPlayerName());
break;
case 2:
yAxisLabel = compareStatsOptions[1];
dataset.addValue(players.get(i).getBowlingAverage(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveBowlingAverage(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveBowlingAverage(players), overall, players.get(i).getPlayerName());
break;
case 3:
yAxisLabel = compareStatsOptions[2];
dataset.addValue(players.get(i).calcCareerSpan(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveCareerLength(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveCareerLength(players), overall, players.get(i).getPlayerName());
break;
case 4:
yAxisLabel = compareStatsOptions[3];
dataset.addValue(players.get(i).getEconomyRate(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveEconRate(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveEconRate(players), overall, players.get(i).getPlayerName());
break;
case 5:
yAxisLabel = compareStatsOptions[4];
dataset.addValue(players.get(i).getFiveWicketsInnings(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveFiveWicketsInns(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveFiveWicketsInns(players), overall, players.get(i).getPlayerName());
break;
case 6:
yAxisLabel = compareStatsOptions[5];
dataset.addValue(players.get(i).getInningsPlayed(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveInningsPerCountry(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveInningsPerPlayer(players), overall, players.get(i).getPlayerName());
break;
case 7:
yAxisLabel = compareStatsOptions[6];
dataset.addValue(players.get(i).getMatchesPlayed(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveMatchesPerPlayer(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveMatchesPerPlayer(players), overall, players.get(i).getPlayerName());
break;
case 8:
yAxisLabel = compareStatsOptions[7];
dataset.addValue(players.get(i).getRunsConceded(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveRunsConceded(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveRunsConceded(players), overall, players.get(i).getPlayerName());
break;
case 9:
yAxisLabel = compareStatsOptions[8];
dataset.addValue(players.get(i).getStrikeRate(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveStrikeRate(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveStrikeRate(players), overall, players.get(i).getPlayerName());
break;
case 10:
yAxisLabel = compareStatsOptions[9];
dataset.addValue(players.get(i).getWicketsTaken(), player, players.get(i).getPlayerName());
dataset.addValue(stats.aveWickets(players, players.get(i).getCountryName()), country, players.get(i).getPlayerName());
dataset.addValue(stats.aveWickets(players), overall, players.get(i).getPlayerName());
break;
}
}
}
return dataset;
}
/** * Creates a chart */
private JFreeChart createChart(CategoryDataset dataset, String title) {
// create the chart...
final JFreeChart chart = ChartFactory.createBarChart(
title, // chart title
"Countries", // domain axis label
yAxisLabel, // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips?
false // URLs?
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// set the background color for the chart...
chart.setBackgroundPaint(Color.white);
// get a reference to the plot for further customisation...
final CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
// set the range axis to display integers only...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// disable bar outlines...
final BarRenderer renderer = (BarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(false);
// set up gradient paints for series...
final GradientPaint gp0 = new GradientPaint(
0.0f, 0.0f, Color.blue,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp1 = new GradientPaint(
0.0f, 0.0f, Color.green,
0.0f, 0.0f, Color.lightGray
);
final GradientPaint gp2 = new GradientPaint(
0.0f, 0.0f, Color.red,
0.0f, 0.0f, Color.lightGray
);
renderer.setSeriesPaint(0, gp0);
final CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)
);
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
}
我不确定该课程的 SSCCE 应该发布什么 - 我觉得问题可能出在“CategoryDataset createDataset”方法中的 switch-case 语句中......
这是“Go”按钮的按钮侦听器代码,当它被单击时应该会生成图表(连同在它旁边的 JComboBox 中选择的选项,以及文本框中的玩家名称):
private void confirmGraphBtnActionPerformed(java.awt.event.ActionEvent evt) {
String selectedOption = String.valueOf(chooseGraphOption.getSelectedItem()).toString();
int statsOption = options.indexOf(selectedOption);
processCvPvOchart(statsOption);
}
最后,这里是 processCvPvOchart 方法的代码:
/**
* This method processes the chart for the "Player vs Country vs Overall"
* player stats, in the "Single Player Stats" tab.
* @param option The option for which stats to display.
*/
public void processCvPvOchart(int option)
{
//pVcVo = "Player vs Country vs Overall"
String title = pVcVo.get(option);
PlayerVsCountryVsOverallChart chart = new PlayerVsCountryVsOverallChart(title, "", players, option + 1, getPlayerName.getText());
displayGraphPanel.add(chart);
repaint();
}
我已将此代码提交到我在 GitHub 上的项目存储库https://github.com/rattfieldnz/Java_Projects/tree/master/PCricketStats。运行它并测试它可能对想要帮助我的人有益。一旦我了解了更多关于剖析我的 SSCCE 代码的信息,我将包含更小的代码片段。