既然一张图值一千字，那我就给你看。
这就是我所拥有的：
这就是我需要的：
一些代码可能有用：
private JFreeChart createChart (XYDataset dataset)
{
ValueAxis radiusAxis = new NumberAxis ();
radiusAxis.setTickLabelsVisible (false);
// Rendering serie ( handeling null values )
DefaultPolarItemRenderer ren = new DefaultPolarItemRenderer ()
{
@Override
public void drawSeries (Graphics2D g2, Rectangle2D dataArea,
PlotRenderingInfo info, PolarPlot plot, XYDataset dataset, int seriesIndex)
{
boolean newPath = true;
GeneralPath polyline = new GeneralPath ();
int numPoints = dataset.getItemCount (seriesIndex);
for (int i = 0 ; i < numPoints - 1 ; i++)
{
double theta = dataset.getXValue (seriesIndex, i);
double radius = dataset.getYValue (seriesIndex, i);
Point p = plot.translateValueThetaRadiusToJava2D (theta, radius,
dataArea);
if (p.x == 0 && p.y == 0)
{
newPath = true;
}
else
{
if (newPath)
{
polyline.moveTo (p.x, p.y);
newPath = false;
}
else
{
polyline.lineTo (p.x, p.y);
}
}
}
g2.setPaint (lookupSeriesPaint (seriesIndex));
g2.setStroke (lookupSeriesStroke (seriesIndex));
g2.draw (polyline);
}
};
// removing fill serie
ren.setSeriesFilled (0, false);
// custimizing angles
PolarPlot plot = new PolarPlot (dataset, radiusAxis, ren)
{
@Override
protected java.util.List refreshAngleTicks ()
{
java.util.List ticks = new ArrayList ();
ticks.add (new NumberTick (0, "12AM", TextAnchor.CENTER, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (30, "2AM", TextAnchor.TOP_LEFT, TextAnchor.TOP_RIGHT, 0));
ticks.add (new NumberTick (60, "4AM", TextAnchor.TOP_LEFT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (90, "6AM", TextAnchor.TOP_LEFT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (120, "8AM", TextAnchor.TOP_LEFT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (150, "10AM", TextAnchor.TOP_LEFT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (180, "12PM", TextAnchor.CENTER, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (210, "2PM", TextAnchor.TOP_RIGHT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (240, "4PM", TextAnchor.TOP_RIGHT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (270, "6PM", TextAnchor.TOP_RIGHT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (300, "8PM", TextAnchor.TOP_RIGHT, TextAnchor.TOP_LEFT, 0));
ticks.add (new NumberTick (330, "10PM", TextAnchor.TOP_RIGHT, TextAnchor.TOP_LEFT, 0));
return ticks;
}
};
// colors..
plot.setOutlinePaint (new Color (0, 0, 0, 0));
plot.setBackgroundPaint (Color.white);
plot.setRadiusGridlinePaint (Color.gray);
ren.setShapesVisible (true);
plot.setRadiusGridlinesVisible (true);
plot.setAngleGridlinesVisible (true);
plot.setAngleLabelsVisible (true);
plot.setOutlineVisible (true);
plot.setAngleGridlinePaint (Color.BLACK);
plot.setRenderer (ren);
JFreeChart chart = new JFreeChart ("", JFreeChart.DEFAULT_TITLE_FONT, plot, false);
chart.setBackgroundPaint (Color.white);
chart.setBorderVisible (false);
chart.setBorderPaint (Color.RED);
// showing Label Axis ( 0 ... 20 ... 30 ...40)
NumberAxis rangeAxis = (NumberAxis) plot.getAxis ();
rangeAxis.setTickLabelsVisible (true);
rangeAxis.setAxisLinePaint (Color.RED);
return chart;
}
如您所见，我想更改AxisLine 角度；我不知道该怎么做。
谢谢你。