减少java中条形图的宽度

Question

我使用JFreeChart显示条形图，图形中条形的宽度很大。我想减少条的宽度，是否有任何API，请告诉我..

Answer 1

BarRenderer renderer = (BarRenderer) chart.getCategoryPlot().getRenderer();
renderer.setItemMargin(-2);

试试上面的代码。试着看看这个帖子。

Width of the bar in Jfreechart

请注意上面的代码片段来自同一个帖子。

作为对您的评论的回答，以下是相同方法的Java Doc

public void setItemMargin(double percent)
Sets the item margin and sends a RendererChangeEvent to all registered listeners. The value is expressed as a percentage of the available width for plotting all the bars, with the resulting amount to be distributed between all the bars evenly.
Parameters:
percent - the margin (where 0.10 is ten percent).