本文整理了Java中org.jfree.chart.plot.Plot.setForegroundAlpha()方法的一些代码示例，展示了Plot.setForegroundAlpha()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Plot.setForegroundAlpha()方法的具体详情如下：
包路径：org.jfree.chart.plot.Plot
类名称：Plot
方法名：setForegroundAlpha

Plot.setForegroundAlpha介绍

[英]Sets the alpha-transparency for the plot and sends a PlotChangeEvent to all registered listeners.
[中]设置绘图的alpha透明度，并向所有注册的侦听器发送PlotChangeEvent。

代码示例

代码示例来源：origin: com.atlassian.confluence.extra.chart/chart-plugin

/**
 * Handle opacity customization requested.
 * - get customization parameters from parameter Map and modify plot accordingly
 * @param opacity value to set to the chart
 * @param plot  chart plot
 * @throws MacroExecutionException
 */
void handleOpacityCustomization(String opacity, Plot plot) throws MacroExecutionException {
  if (opacity != null) {
    try {
      Integer iOpacity = new Integer(opacity);
      if ((iOpacity < 0) || (iOpacity > 100)) {
        throw new MacroExecutionException("opacity parameter value '" + opacity + "' not between 0 and 100");
      }
      plot.setForegroundAlpha(iOpacity.floatValue()/100);
    }
    catch (NumberFormatException exception) {     // error out on illegal integer value
      throw new MacroExecutionException("opacity parameter value '" + opacity + "' not a number between 0 and 100");
    }
  }
}

代码示例来源：origin: jenkinsci/analysis-core-plugin

/**
 * Sets properties common to all plots of this plug-in.
 *
 * @param plot
 *            the plot to set the properties for
 */
// CHECKSTYLE:OFF
protected void setPlotProperties(final Plot plot) {
  plot.setBackgroundPaint(Color.WHITE);
  plot.setOutlinePaint(null);
  plot.setForegroundAlpha(0.8f);
  plot.setInsets(new RectangleInsets(0, 0, 0, 5.0));
}
// CHECKSTYLE:ON

代码示例来源：origin: org.hudsonci.plugins/analysis-core

/**
 * Sets properties common to all plots of this plug-in.
 *
 * @param plot
 *            the plot to set the properties for
 */
// CHECKSTYLE:OFF
protected void setPlotProperties(final Plot plot) {
  plot.setBackgroundPaint(Color.WHITE);
  plot.setOutlinePaint(null);
  plot.setForegroundAlpha(0.8f);
  plot.setInsets(new RectangleInsets(0, 0, 0, 5.0));
}
// CHECKSTYLE:ON

代码示例来源：origin: com.xpn.xwiki.platform/xwiki-core

public static void customizePlot(Plot plot, ChartParams params)
{
  if (params.get(ChartParams.PLOT_BACKGROUND_COLOR) != null) {
    plot.setBackgroundPaint(params.getColor(ChartParams.PLOT_BACKGROUND_COLOR));
  }
  if (params.get(ChartParams.PLOT_BACKGROUND_ALPHA) != null) {
    plot.setBackgroundAlpha(params.getFloat(ChartParams.PLOT_BACKGROUND_ALPHA).floatValue());
  }
  if (params.get(ChartParams.PLOT_FOREGROUND_ALPHA) != null) {
    plot.setForegroundAlpha(params.getFloat(ChartParams.PLOT_FOREGROUND_ALPHA).floatValue());
  }
  if (params.get(ChartParams.PLOT_INSERTS) != null) {
    plot.setInsets(params.getRectangleInsets(ChartParams.PLOT_INSERTS));
  }
  if (params.get(ChartParams.PLOT_OUTLINE_COLOR) != null) {
    plot.setOutlinePaint(params.getColor(ChartParams.PLOT_OUTLINE_COLOR));
  }
  if (params.get(ChartParams.PLOT_OUTLINE_STROKE) != null) {
    plot.setOutlineStroke(params.getStroke(ChartParams.PLOT_OUTLINE_STROKE));
  }
}

代码示例来源：origin: jasperreports/jasperreports

float foregroundAlpha = getPlot().getForegroundAlphaFloat() == null ? 1f : getPlot().getForegroundAlphaFloat().floatValue();
plot.setBackgroundAlpha(backgroundAlpha);
plot.setForegroundAlpha(foregroundAlpha);

代码示例来源：origin: org.jboss.seam/jboss-seam-pdf

public void configurePlot(Plot plot) {
  if (getPlotBackgroundAlpha() != null) {
    plot.setBackgroundAlpha(getPlotBackgroundAlpha());
  }
  if (getPlotForegroundAlpha() != null) {
    plot.setForegroundAlpha(getPlotForegroundAlpha());
  }
  if (getPlotBackgroundPaint() != null) {
    plot.setBackgroundPaint(findColor(getPlotBackgroundPaint()));
  }
  if (getPlotOutlinePaint() != null) {
    plot.setOutlinePaint(findColor(getPlotOutlinePaint()));
  }
  if (getPlotOutlineStroke() != null) {
    plot.setOutlineStroke(findStroke(getPlotOutlineStroke()));
  }
}

代码示例来源：origin: org.zkoss.zk/zkex

Plot plot = (Plot) jfchart.getPlot();
float alpha = (float)(((float)chart.getFgAlpha()) / 255);
plot.setForegroundAlpha(alpha);