如何从jfreechart中的Box和Whisker图表中删除异常值（小圆圈）
我使用下面的代码生成箱形图。但取决于某些值，它显示小圆圈而不绘制晶须。我需要向小胡子展示胡须。是否可以隐藏圆圈并显示胡须？
private void createBoxPlotChart(OutputStream out, Object data)
throws Exception {
ChartRenderingInfo info = new ChartRenderingInfo();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] ptsImageBytes = null;
DefaultBoxAndWhiskerCategoryDataset boxAndWhiskerCategoryDS = createBoxAndWhiskerCategoryDataSet();
JFreeChart chart = ChartFactory.createBoxAndWhiskerChart(selectedFlight
+ " - Time on Hold", "Arrival Time (Days)",
"Hold Time (Mins)", boxAndWhiskerCategoryDS, true);
NumberAxis rangeAxis = (NumberAxis) chart.getCategoryPlot()
.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
CategoryAxis domainAxis = chart.getCategoryPlot().getDomainAxis();
BoxAndWhiskerRenderer renderer = (BoxAndWhiskerRenderer) chart.getCategoryPlot().getRenderer();
//renderer.setFillBox(false);
renderer.setMeanVisible(false);
renderer.setUseOutlinePaintForWhiskers(false);
renderer.setMedianVisible(false);
if(boxAndWhiskerCategoryDS.getRowCount()>8){
domainAxis.setCategoryLabelPositions(CategoryLabelPositions
.createUpRotationLabelPositions(Math.PI / 5.0));
}
chart.getCategoryPlot().setBackgroundPaint(Color.white);
chart.getCategoryPlot().setDomainGridlinePaint(Color.gray);
chart.getCategoryPlot().setRangeGridlinePaint(Color.gray);
chart.getCategoryPlot().setOutlineVisible(false);
BufferedImage pageImage = chart.createBufferedImage(CHART_WIDTH,
CHART_HEIGHT, BufferedImage.TYPE_INT_BGR, info);
ImageIO.write(pageImage, IMAGE_TYPE, baos);
baos.flush();
if (null != baos) {
ptsImageBytes = baos.toByteArray();
}
ImageIO.write(pageImage, IMAGE_TYPE, out);
}
private DefaultBoxAndWhiskerCategoryDataset createBoxAndWhiskerCategoryDataSet()
throws ParseException {
DefaultBoxAndWhiskerCategoryDataset dataset = new DefaultBoxAndWhiskerCategoryDataset();
for (String graph : graphList) {
final List<Double> list = new ArrayList<Double>();
for (ereportDto ereportDto : holdTimeRptList) {
if (ereportDto != null && ereportDto.getHoldTime() != 0
&& ereportDto.getGraphTime() != null
&& ereportDto.getGraphTime().equalsIgnoreCase(graph)) {
double medianVal=ereportDto.getGraphHoldEntry()+((ereportDto.getGraphHoldExit()-ereportDto.getGraphHoldEntry())/2);
list.add(new Double(ereportDto.getGraphTimeAt120NM()));
list.add(new Double(ereportDto.getGraphHoldEntry()));
list.add(new Double(medianVal));
list.add(new Double(ereportDto.getGraphHoldExit()));
list.add(new Double(ereportDto.getGraphLandedTime()));
}
}
dataset.add(list, graph, graph);
}
return dataset;
}
1 个答案:
答案 0 :(得分：2)
进行自定义扩展，以便能够设置离群值半径。将其设置为0，它们消失了。
package de.vontrostorff.kivsproject.util;
import lombok.Getter;
import lombok.Setter;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.entity.EntityCollection;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.Outlier;
import org.jfree.chart.renderer.OutlierList;
import org.jfree.chart.renderer.OutlierListCollection;
import org.jfree.chart.renderer.category.BoxAndWhiskerRenderer;
import org.jfree.chart.renderer.category.CategoryItemRendererState;
import org.jfree.chart.ui.RectangleEdge;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.statistics.BoxAndWhiskerCategoryDataset;
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
public class CustomBoxAndWhiskerRenderer extends BoxAndWhiskerRenderer {
private Double outlierRadius;
public Double getOutlierRadius() {
return outlierRadius;
}
public void setOutlierRadius(Double outlierRadius) {
this.outlierRadius = outlierRadius;
}
@Override
public void drawVerticalItem(Graphics2D g2, CategoryItemRendererState state,
Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
ValueAxis rangeAxis, CategoryDataset dataset, int row, int column) {
BoxAndWhiskerCategoryDataset bawDataset
= (BoxAndWhiskerCategoryDataset) dataset;
double categoryEnd = domainAxis.getCategoryEnd(column,
getColumnCount(), dataArea, plot.getDomainAxisEdge());
double categoryStart = domainAxis.getCategoryStart(column,
getColumnCount(), dataArea, plot.getDomainAxisEdge());
double categoryWidth = categoryEnd - categoryStart;
double xx = categoryStart;
int seriesCount = getRowCount();
int categoryCount = getColumnCount();
if (seriesCount > 1) {
double seriesGap = dataArea.getWidth() * getItemMargin()
/ (categoryCount * (seriesCount - 1));
double usedWidth = (state.getBarWidth() * seriesCount)
+ (seriesGap * (seriesCount - 1));
// offset the start of the boxes if the total width used is smaller
// than the category width
double offset = (categoryWidth - usedWidth) / 2;
xx = xx + offset + (row * (state.getBarWidth() + seriesGap));
}
else {
// offset the start of the box if the box width is smaller than the
// category width
double offset = (categoryWidth - state.getBarWidth()) / 2;
xx = xx + offset;
}
double yyAverage;
double yyOutlier;
Paint itemPaint = getItemPaint(row, column);
g2.setPaint(itemPaint);
Stroke s = getItemStroke(row, column);
g2.setStroke(s);
double aRadius = 0; // average radius
RectangleEdge location = plot.getRangeAxisEdge();
Number yQ1 = bawDataset.getQ1Value(row, column);
Number yQ3 = bawDataset.getQ3Value(row, column);
Number yMax = bawDataset.getMaxRegularValue(row, column);
Number yMin = bawDataset.getMinRegularValue(row, column);
Shape box = null;
if (yQ1 != null && yQ3 != null && yMax != null && yMin != null) {
double yyQ1 = rangeAxis.valueToJava2D(yQ1.doubleValue(), dataArea,
location);
double yyQ3 = rangeAxis.valueToJava2D(yQ3.doubleValue(), dataArea,
location);
double yyMax = rangeAxis.valueToJava2D(yMax.doubleValue(),
dataArea, location);
double yyMin = rangeAxis.valueToJava2D(yMin.doubleValue(),
dataArea, location);
double xxmid = xx + state.getBarWidth() / 2.0;
double halfW = (state.getBarWidth() / 2.0) * getWhiskerWidth();
// draw the body...
box = new Rectangle2D.Double(xx, Math.min(yyQ1, yyQ3),
state.getBarWidth(), Math.abs(yyQ1 - yyQ3));
if (getFillBox()) {
g2.fill(box);
}
Paint outlinePaint = getItemOutlinePaint(row, column);
if (getUseOutlinePaintForWhiskers()) {
g2.setPaint(outlinePaint);
}
// draw the upper shadow...
g2.draw(new Line2D.Double(xxmid, yyMax, xxmid, yyQ3));
g2.draw(new Line2D.Double(xxmid - halfW, yyMax, xxmid + halfW, yyMax));
// draw the lower shadow...
g2.draw(new Line2D.Double(xxmid, yyMin, xxmid, yyQ1));
g2.draw(new Line2D.Double(xxmid - halfW, yyMin, xxmid + halfW, yyMin));
g2.setStroke(getItemOutlineStroke(row, column));
g2.setPaint(outlinePaint);
g2.draw(box);
}
g2.setPaint(getArtifactPaint());
// draw mean - SPECIAL AIMS REQUIREMENT...
if (isMeanVisible()) {
Number yMean = bawDataset.getMeanValue(row, column);
if (yMean != null) {
yyAverage = rangeAxis.valueToJava2D(yMean.doubleValue(),
dataArea, location);
aRadius = state.getBarWidth() / 4;
// here we check that the average marker will in fact be
// visible before drawing it...
if ((yyAverage > (dataArea.getMinY() - aRadius))
&& (yyAverage < (dataArea.getMaxY() + aRadius))) {
Ellipse2D.Double avgEllipse = new Ellipse2D.Double(
xx + aRadius, yyAverage - aRadius, aRadius * 2,
aRadius * 2);
g2.fill(avgEllipse);
g2.draw(avgEllipse);
}
}
}
// draw median...
if (isMedianVisible()) {
Number yMedian = bawDataset.getMedianValue(row, column);
if (yMedian != null) {
double yyMedian = rangeAxis.valueToJava2D(
yMedian.doubleValue(), dataArea, location);
g2.draw(new Line2D.Double(xx, yyMedian,
xx + state.getBarWidth(), yyMedian));
}
}
// draw yOutliers...
double maxAxisValue = rangeAxis.valueToJava2D(
rangeAxis.getUpperBound(), dataArea, location) + aRadius;
double minAxisValue = rangeAxis.valueToJava2D(
rangeAxis.getLowerBound(), dataArea, location) - aRadius;
g2.setPaint(itemPaint);
// draw outliers
double oRadius = outlierRadius == null? state.getBarWidth()/3: outlierRadius; // outlier radius
java.util.List outliers = new ArrayList();
OutlierListCollection outlierListCollection
= new OutlierListCollection();
// From outlier array sort out which are outliers and put these into a
// list If there are any farouts, set the flag on the
// OutlierListCollection
List yOutliers = bawDataset.getOutliers(row, column);
if (yOutliers != null) {
for (int i = 0; i < yOutliers.size(); i++) {
double outlier = ((Number) yOutliers.get(i)).doubleValue();
Number minOutlier = bawDataset.getMinOutlier(row, column);
Number maxOutlier = bawDataset.getMaxOutlier(row, column);
Number minRegular = bawDataset.getMinRegularValue(row, column);
Number maxRegular = bawDataset.getMaxRegularValue(row, column);
if (outlier > maxOutlier.doubleValue()) {
outlierListCollection.setHighFarOut(true);
}
else if (outlier < minOutlier.doubleValue()) {
outlierListCollection.setLowFarOut(true);
}
else if (outlier > maxRegular.doubleValue()) {
yyOutlier = rangeAxis.valueToJava2D(outlier, dataArea,
location);
outliers.add(new Outlier(xx + state.getBarWidth() / 2.0,
yyOutlier, oRadius));
}
else if (outlier < minRegular.doubleValue()) {
yyOutlier = rangeAxis.valueToJava2D(outlier, dataArea,
location);
outliers.add(new Outlier(xx + state.getBarWidth() / 2.0,
yyOutlier, oRadius));
}
Collections.sort(outliers);
}
// Process outliers. Each outlier is either added to the
// appropriate outlier list or a new outlier list is made
for (Iterator iterator = outliers.iterator(); iterator.hasNext();) {
Outlier outlier = (Outlier) iterator.next();
outlierListCollection.add(outlier);
}
for (Iterator iterator = outlierListCollection.iterator();
iterator.hasNext();) {
OutlierList list = (OutlierList) iterator.next();
Outlier outlier = list.getAveragedOutlier();
Point2D point = outlier.getPoint();
if (list.isMultiple()) {
drawMultipleEllipse(point, state.getBarWidth(), oRadius,
g2);
}
else {
drawEllipse(point, oRadius, g2);
}
}
// draw farout indicators
if (outlierListCollection.isHighFarOut()) {
drawHighFarOut(aRadius / 2.0, g2,
xx + state.getBarWidth() / 2.0, maxAxisValue);
}
if (outlierListCollection.isLowFarOut()) {
drawLowFarOut(aRadius / 2.0, g2,
xx + state.getBarWidth() / 2.0, minAxisValue);
}
}
// collect entity and tool tip information...
if (state.getInfo() != null && box != null) {
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
addItemEntity(entities, dataset, row, column, box);
}
}
}
/**
* Draws two dots to represent the average value of more than one outlier.
*
* @param point the location
* @param boxWidth the box width.
* @param oRadius the radius.
* @param g2 the graphics device.
*/
private void drawMultipleEllipse(Point2D point, double boxWidth,
double oRadius, Graphics2D g2) {
Ellipse2D dot1 = new Ellipse2D.Double(point.getX() - (boxWidth / 2)
+ oRadius, point.getY(), oRadius, oRadius);
Ellipse2D dot2 = new Ellipse2D.Double(point.getX() + (boxWidth / 2),
point.getY(), oRadius, oRadius);
g2.draw(dot1);
g2.draw(dot2);
}
/**
* Draws a dot to represent an outlier.
*
* @param point the location.
* @param oRadius the radius.
* @param g2 the graphics device.
*/
private void drawEllipse(Point2D point, double oRadius, Graphics2D g2) {
Ellipse2D dot = new Ellipse2D.Double(point.getX() + oRadius / 2,
point.getY(), oRadius, oRadius);
g2.draw(dot);
}
/**
* Draws a triangle to indicate the presence of far-out values.
*
* @param aRadius the radius.
* @param g2 the graphics device.
* @param xx the x coordinate.
* @param m the y coordinate.
*/
private void drawHighFarOut(double aRadius, Graphics2D g2, double xx,
double m) {
double side = aRadius * 2;
g2.draw(new Line2D.Double(xx - side, m + side, xx + side, m + side));
g2.draw(new Line2D.Double(xx - side, m + side, xx, m));
g2.draw(new Line2D.Double(xx + side, m + side, xx, m));
}
/**
* Draws a triangle to indicate the presence of far-out values.
*
* @param aRadius the radius.
* @param g2 the graphics device.
* @param xx the x coordinate.
* @param m the y coordinate.
*/
private void drawLowFarOut(double aRadius, Graphics2D g2, double xx,
double m) {
double side = aRadius * 2;
g2.draw(new Line2D.Double(xx - side, m - side, xx + side, m - side));
g2.draw(new Line2D.Double(xx - side, m - side, xx, m));
g2.draw(new Line2D.Double(xx + side, m - side, xx, m));
}
}
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？