JFreechart 折线图 折线大小、颜色设置、图标大小设置

原文链接：https://my.oschina.net/qiuzhping/blog/611684
String title, String scope) {
JFreeChart chart = ChartFactory.createLineChart(title, null, "数量",
dataset, PlotOrientation.VERTICAL, // 图表方向垂直
true, true, true);
chart.addSubtitle(new TextTitle(scope));
LegendTitle legend = chart.getLegend(); // 设置图例的字体
legend.setItemFont(new Font("宋体", Font.BOLD, 16));
// 获取折线图plot对象
CategoryPlot plot = (CategoryPlot) chart.getPlot();
// 设置背景颜色
plot.setBackgroundPaint(Color.WHITE);
// 设置网格竖线颜色
plot.setDomainGridlinePaint(Color.pink);
// 设置网格横线颜色
plot.setRangeGridlinePaint(Color.pink);
plot.setNoDataMessage("暂无数据显示！");// 没有数据显示的时候显示这个提示
// 取得横轴
CategoryAxis categoryAxis = plot.getDomainAxis();
// 设置横轴的字体
categoryAxis.setLabelFont(new Font("宋体", Font.BOLD, 16));
// 设置分类标签以45度倾斜
categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.STANDARD);//
// 设置分类标签字体
categoryAxis.setTickLabelFont(new Font("宋体", Font.BOLD, 18));
// 取得纵轴
NumberAxis numberAxis = (NumberAxis) plot.getRangeAxis();
numberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// 设置纵轴的字体
numberAxis.setLabelFont(new Font("黑体", Font.PLAIN, 18));
numberAxis.setUpperMargin(0.15);//设置最高数据显示与顶端的距离
numberAxis.setLowerMargin(2);//设置最低的一个值与图片底端的距离
// 设置背景透明度（0~1）
plot.setBackgroundAlpha(1f);
// 设置前景色透明度（0~1）
plot.setForegroundAlpha(1f);
// 获取显示线条的对象
LineAndShapeRenderer lasp = (LineAndShapeRenderer) plot.getRenderer();
// 设置拐点是否可见/是否显示拐点
lasp.setBaseShapesVisible(true);
// 设置拐点不同用不同的形状
lasp.setDrawOutlines(true);
// 设置线条是否被显示填充颜色
lasp.setUseFillPaint(true);
// 设置拐点颜色
lasp.setBaseFillPaint(Color.blue);//蓝色
// 设置折线加粗
//lasp.setSeriesStroke(0, new BasicStroke(3F));
lasp.setSeriesOutlineStroke(0, new BasicStroke(4.5F));//设置折点的大小
lasp.setSeriesOutlineStroke(1, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(2, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(3, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(4, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(5, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(6, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(7, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(8, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(9, new BasicStroke(4.5F));
lasp.setSeriesOutlineStroke(10, new BasicStroke(4.5F));
// 设置折线拐点

// lasp.setSeriesShape(0, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(1, new java.awt.geom.Ellipse2D.Double(-1D, -2D,
// 10D, 10D));
// lasp.setSeriesShape(2, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(3, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(4, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(5, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(6, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(7, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(8, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(9, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
// lasp.setSeriesShape(10, new java.awt.geom.Ellipse2D.Double(-5D, -5D,
// 10D, 10D));
plot.setNoDataMessage("没有相关统计数据");
LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot
.getRenderer();// 设置样式


// 设置每个地区所包含的平行柱的之间距离
renderer
.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
renderer.setItemLabelsVisible(true);// 显示每个点上的数据值的提示工具,数据标签是否可见
renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(
ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT));
renderer.setItemLabelFont(new Font("黑体", Font.PLAIN, 14));// 设置数字的字体大小
renderer.setItemLabelAnchorOffset(2D);
// // 设置颜色-----------------------------------------------------------
renderer.setSeriesStroke(0, new BasicStroke(4.0F));//设置折线大小
// renderer.setSeriesPaint(0, Color.RED);//红色
renderer.setSeriesStroke(1, new BasicStroke(4.0F));
// renderer.setSeriesPaint(1, Color.GREEN);//绿色
renderer.setSeriesStroke(2, new BasicStroke(4.0F));
// renderer.setSeriesPaint(2, Color.ORANGE);//c橙色
renderer.setSeriesStroke(3, new BasicStroke(4.0F));
// renderer.setSeriesPaint(3, Color.BLUE);//蓝色
renderer.setSeriesStroke(4, new BasicStroke(4.0F));
// renderer.setSeriesPaint(4, Color.BLACK);//黑色
renderer.setSeriesStroke(5, new BasicStroke(4.0F));
// renderer.setSeriesPaint(5, Color.CYAN);
renderer.setSeriesStroke(6, new BasicStroke(4.0F));
renderer.setSeriesStroke(7, new BasicStroke(4.0F));
renderer.setSeriesStroke(8, new BasicStroke(4.0F));
renderer.setSeriesStroke(9, new BasicStroke(4.0F));
renderer.setSeriesStroke(10, new BasicStroke(4.0F));
plot.setRenderer(renderer);// 使用我们设计的效果F
return chart;
}

转载于:https://my.oschina.net/qiuzhping/blog/611684

标签：lasp,设置,10D,renderer,JFreechart,5D,折线图,new,BasicStroke
来源： https://blog.csdn.net/choupumi4274/article/details/100810053