本文整理匯總了Java中org.jfree.chart.renderer.category.CategoryItemRenderer.getItemMiddle方法的典型用法代碼示例。如果您正苦於以下問題：Java CategoryItemRenderer.getItemMiddle方法的具體用法？Java CategoryItemRenderer.getItemMiddle怎麽用？Java CategoryItemRenderer.getItemMiddle使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.jfree.chart.renderer.category.CategoryItemRenderer的用法示例。
在下文中一共展示了CategoryItemRenderer.getItemMiddle方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: drawDomainCrosshair
import org.jfree.chart.renderer.category.CategoryItemRenderer; //導入方法依賴的package包/類
/**
* Draws a domain crosshair.
*
* @param g2 the graphics target.
* @param dataArea the data area.
* @param orientation the plot orientation.
* @param datasetIndex the dataset index.
* @param rowKey the row key.
* @param columnKey the column key.
* @param stroke the stroke used to draw the crosshair line.
* @param paint the paint used to draw the crosshair line.
*
* @see #drawRangeCrosshair(Graphics2D, Rectangle2D, PlotOrientation,
* double, ValueAxis, Stroke, Paint)
*
* @since 1.0.11
*/
protected void drawDomainCrosshair(Graphics2D g2, Rectangle2D dataArea,
PlotOrientation orientation, int datasetIndex,
Comparable rowKey, Comparable columnKey, Stroke stroke,
Paint paint) {
CategoryDataset dataset = getDataset(datasetIndex);
CategoryAxis axis = getDomainAxisForDataset(datasetIndex);
CategoryItemRenderer renderer = getRenderer(datasetIndex);
Line2D line;
if (orientation == PlotOrientation.VERTICAL) {
double xx = renderer.getItemMiddle(rowKey, columnKey, dataset, axis,
dataArea, RectangleEdge.BOTTOM);
line = new Line2D.Double(xx, dataArea.getMinY(), xx,
dataArea.getMaxY());
}
else {
double yy = renderer.getItemMiddle(rowKey, columnKey, dataset, axis,
dataArea, RectangleEdge.LEFT);
line = new Line2D.Double(dataArea.getMinX(), yy,
dataArea.getMaxX(), yy);
}
g2.setStroke(stroke);
g2.setPaint(paint);
g2.draw(line);
}