如何在OptaPlanner的UI中调整颜色?
How to adjust colors in the UI of OptaPlanner?
我目前正在使用 OptaPlanner 的作业调度算法来创建某个计划。我希望计划中使用的每个执行模式都以不同的颜色显示(而不是所有不同的项目都以不同的颜色显示)。是否有可能实现这一点,如果可以,如何实现?我已经搜索代码一段时间了,但不知道该怎么做。
使用作为 OptaPlanner 项目一部分的 Project Scheduling Swing 应用程序无法轻松完成此操作。它使用 JFreeChart 绘制数据,但我找不到将元数据(如颜色)与正在绘制的数据相关联的简单方法。
您可以根据数据项的行 (seriesIndex
) 和列(项目在系列中的索引)将 YIntervalRenderer
行为覆盖为您选择的 return 颜色,但您必须保留执行模式和自己[row, column]
的映射,比较麻烦
下面是一个修改后的 ProjectJobSchedulingPanel
的例子:
public class ProjectJobSchedulingPanel extends SolutionPanel<Schedule> {
private static final Logger logger = LoggerFactory.getLogger(ProjectJobSchedulingPanel.class);
private static final Paint[] PAINT_SEQUENCE = DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE;
public static final String LOGO_PATH = "/org/optaplanner/examples/projectjobscheduling/swingui/projectJobSchedulingLogo.png";
public ProjectJobSchedulingPanel() {
setLayout(new BorderLayout());
}
@Override
public void resetPanel(Schedule schedule) {
removeAll();
ChartPanel chartPanel = new ChartPanel(createChart(schedule));
add(chartPanel, BorderLayout.CENTER);
}
private JFreeChart createChart(Schedule schedule) {
YIntervalSeriesCollection seriesCollection = new YIntervalSeriesCollection();
Map<Project, YIntervalSeries> projectSeriesMap = new LinkedHashMap<>(
schedule.getProjectList().size());
ExecutionMode[][] executionModeByRowAndColumn = new ExecutionMode[schedule.getProjectList().size()][schedule.getAllocationList().size()];
YIntervalRenderer renderer = new YIntervalRenderer() {
@Override
public Paint getItemPaint(int row, int column) {
ExecutionMode executionMode = executionModeByRowAndColumn[row][column];
logger.info("getItemPaint: ExecutionMode [{},{}]: {}", row, column, executionMode);
return executionMode == null
? TangoColorFactory.ALUMINIUM_5
: PAINT_SEQUENCE[(int) (executionMode.getId() % PAINT_SEQUENCE.length)];
}
};
Map<Project, Integer> seriesIndexByProject = new HashMap<>();
int maximumEndDate = 0;
int seriesIndex = 0;
for (Project project : schedule.getProjectList()) {
YIntervalSeries projectSeries = new YIntervalSeries(project.getLabel());
seriesCollection.addSeries(projectSeries);
projectSeriesMap.put(project, projectSeries);
renderer.setSeriesShape(seriesIndex, new Rectangle());
renderer.setSeriesStroke(seriesIndex, new BasicStroke(3.0f));
seriesIndexByProject.put(project, seriesIndex);
seriesIndex++;
}
for (Allocation allocation : schedule.getAllocationList()) {
int startDate = allocation.getStartDate();
int endDate = allocation.getEndDate();
YIntervalSeries projectSeries = projectSeriesMap.get(allocation.getProject());
int column = projectSeries.getItemCount();
executionModeByRowAndColumn[seriesIndexByProject.get(allocation.getProject())][column] = allocation.getExecutionMode();
logger.info("ExecutionMode [{},{}] = {}", seriesIndexByProject.get(allocation.getProject()), column, allocation.getExecutionMode());
projectSeries.add(allocation.getId(), (startDate + endDate) / 2.0,
startDate, endDate);
maximumEndDate = Math.max(maximumEndDate, endDate);
}
NumberAxis domainAxis = new NumberAxis("Job");
domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
domainAxis.setRange(-0.5, schedule.getAllocationList().size() - 0.5);
domainAxis.setInverted(true);
NumberAxis rangeAxis = new NumberAxis("Day (start to end date)");
rangeAxis.setRange(-0.5, maximumEndDate + 0.5);
XYPlot plot = new XYPlot(seriesCollection, domainAxis, rangeAxis, renderer);
plot.setOrientation(PlotOrientation.HORIZONTAL);
// Uncomment this to use Tango color sequence instead of JFreeChart default sequence.
// This results in color per project mode.
// DefaultDrawingSupplier drawingSupplier = new DefaultDrawingSupplier(
// TangoColorFactory.SEQUENCE_1,
// DefaultDrawingSupplier.DEFAULT_FILL_PAINT_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE);
// plot.setDrawingSupplier(drawingSupplier);
return new JFreeChart("Project Job Scheduling", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}
}
结果:
另一种方法是实现 JFreeChart 接口并自定义 Dataset
和 Renderer
,以便您可以直接绘制 Allocations
。类似于 JFreeChart 中的 Gantt chart 实现。
或者从头开始编写您的自定义 UI。取决于你愿意付出多少努力:)
我目前正在使用 OptaPlanner 的作业调度算法来创建某个计划。我希望计划中使用的每个执行模式都以不同的颜色显示(而不是所有不同的项目都以不同的颜色显示)。是否有可能实现这一点,如果可以,如何实现?我已经搜索代码一段时间了,但不知道该怎么做。
使用作为 OptaPlanner 项目一部分的 Project Scheduling Swing 应用程序无法轻松完成此操作。它使用 JFreeChart 绘制数据,但我找不到将元数据(如颜色)与正在绘制的数据相关联的简单方法。
您可以根据数据项的行 (seriesIndex
) 和列(项目在系列中的索引)将 YIntervalRenderer
行为覆盖为您选择的 return 颜色,但您必须保留执行模式和自己[row, column]
的映射,比较麻烦
下面是一个修改后的 ProjectJobSchedulingPanel
的例子:
public class ProjectJobSchedulingPanel extends SolutionPanel<Schedule> {
private static final Logger logger = LoggerFactory.getLogger(ProjectJobSchedulingPanel.class);
private static final Paint[] PAINT_SEQUENCE = DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE;
public static final String LOGO_PATH = "/org/optaplanner/examples/projectjobscheduling/swingui/projectJobSchedulingLogo.png";
public ProjectJobSchedulingPanel() {
setLayout(new BorderLayout());
}
@Override
public void resetPanel(Schedule schedule) {
removeAll();
ChartPanel chartPanel = new ChartPanel(createChart(schedule));
add(chartPanel, BorderLayout.CENTER);
}
private JFreeChart createChart(Schedule schedule) {
YIntervalSeriesCollection seriesCollection = new YIntervalSeriesCollection();
Map<Project, YIntervalSeries> projectSeriesMap = new LinkedHashMap<>(
schedule.getProjectList().size());
ExecutionMode[][] executionModeByRowAndColumn = new ExecutionMode[schedule.getProjectList().size()][schedule.getAllocationList().size()];
YIntervalRenderer renderer = new YIntervalRenderer() {
@Override
public Paint getItemPaint(int row, int column) {
ExecutionMode executionMode = executionModeByRowAndColumn[row][column];
logger.info("getItemPaint: ExecutionMode [{},{}]: {}", row, column, executionMode);
return executionMode == null
? TangoColorFactory.ALUMINIUM_5
: PAINT_SEQUENCE[(int) (executionMode.getId() % PAINT_SEQUENCE.length)];
}
};
Map<Project, Integer> seriesIndexByProject = new HashMap<>();
int maximumEndDate = 0;
int seriesIndex = 0;
for (Project project : schedule.getProjectList()) {
YIntervalSeries projectSeries = new YIntervalSeries(project.getLabel());
seriesCollection.addSeries(projectSeries);
projectSeriesMap.put(project, projectSeries);
renderer.setSeriesShape(seriesIndex, new Rectangle());
renderer.setSeriesStroke(seriesIndex, new BasicStroke(3.0f));
seriesIndexByProject.put(project, seriesIndex);
seriesIndex++;
}
for (Allocation allocation : schedule.getAllocationList()) {
int startDate = allocation.getStartDate();
int endDate = allocation.getEndDate();
YIntervalSeries projectSeries = projectSeriesMap.get(allocation.getProject());
int column = projectSeries.getItemCount();
executionModeByRowAndColumn[seriesIndexByProject.get(allocation.getProject())][column] = allocation.getExecutionMode();
logger.info("ExecutionMode [{},{}] = {}", seriesIndexByProject.get(allocation.getProject()), column, allocation.getExecutionMode());
projectSeries.add(allocation.getId(), (startDate + endDate) / 2.0,
startDate, endDate);
maximumEndDate = Math.max(maximumEndDate, endDate);
}
NumberAxis domainAxis = new NumberAxis("Job");
domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
domainAxis.setRange(-0.5, schedule.getAllocationList().size() - 0.5);
domainAxis.setInverted(true);
NumberAxis rangeAxis = new NumberAxis("Day (start to end date)");
rangeAxis.setRange(-0.5, maximumEndDate + 0.5);
XYPlot plot = new XYPlot(seriesCollection, domainAxis, rangeAxis, renderer);
plot.setOrientation(PlotOrientation.HORIZONTAL);
// Uncomment this to use Tango color sequence instead of JFreeChart default sequence.
// This results in color per project mode.
// DefaultDrawingSupplier drawingSupplier = new DefaultDrawingSupplier(
// TangoColorFactory.SEQUENCE_1,
// DefaultDrawingSupplier.DEFAULT_FILL_PAINT_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
// DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE);
// plot.setDrawingSupplier(drawingSupplier);
return new JFreeChart("Project Job Scheduling", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}
}
结果:
另一种方法是实现 JFreeChart 接口并自定义 Dataset
和 Renderer
,以便您可以直接绘制 Allocations
。类似于 JFreeChart 中的 Gantt chart 实现。
或者从头开始编写您的自定义 UI。取决于你愿意付出多少努力:)