List of usage examples for org.jfree.data.xy IntervalXYDataset getStartXValue
public double getStartXValue(int series, int item);
From source file:edu.dlnu.liuwenpeng.render.NewXYBarRenderer.java
/** * Draws the visual representation of a single data item. * /* www . j a v a 2 s.c om*/ * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area within which the plot is being drawn. * @param info collects information about the drawing. * @param plot the plot (can be used to obtain standard color * information etc). * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param dataset the dataset. * @param series the series index (zero-based). * @param item the item index (zero-based). * @param crosshairState crosshair information for the plot * (<code>null</code> permitted). * @param pass the pass index. */ public void drawItem(Graphics2D g2, XYItemRendererState state, Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot, ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, int series, int item, CrosshairState crosshairState, int pass) { if (!getItemVisible(series, item)) { return; } IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset; double value0; double value1; if (this.useYInterval) { value0 = intervalDataset.getStartYValue(series, item); value1 = intervalDataset.getEndYValue(series, item); } else { value0 = this.base; value1 = intervalDataset.getYValue(series, item); } if (Double.isNaN(value0) || Double.isNaN(value1)) { return; } if (value0 <= value1) { if (!rangeAxis.getRange().intersects(value0, value1)) { return; } } else { if (!rangeAxis.getRange().intersects(value1, value0)) { return; } } double translatedValue0 = rangeAxis.valueToJava2D(value0, dataArea, plot.getRangeAxisEdge()); double translatedValue1 = rangeAxis.valueToJava2D(value1, dataArea, plot.getRangeAxisEdge()); double bottom = Math.min(translatedValue0, translatedValue1); double top = Math.max(translatedValue0, translatedValue1); double startX = intervalDataset.getStartXValue(series, item); if (Double.isNaN(startX)) { return; } double endX = intervalDataset.getEndXValue(series, item); if (Double.isNaN(endX)) { return; } if (startX <= endX) { if (!domainAxis.getRange().intersects(startX, endX)) { return; } } else { if (!domainAxis.getRange().intersects(endX, startX)) { return; } } RectangleEdge location = plot.getDomainAxisEdge(); double translatedStartX = domainAxis.valueToJava2D(startX, dataArea, location); double translatedEndX = domainAxis.valueToJava2D(endX, dataArea, location); double translatedWidth = Math.max(1, Math.abs(translatedEndX - translatedStartX)); double left = Math.min(translatedStartX, translatedEndX); if (getMargin() > 0.0) { double cut = translatedWidth * getMargin(); translatedWidth = translatedWidth - cut; left = left + cut / 2; } Rectangle2D bar = null; PlotOrientation orientation = plot.getOrientation(); if (orientation == PlotOrientation.HORIZONTAL) { // clip left and right bounds to data area bottom = Math.max(bottom, dataArea.getMinX()); top = Math.min(top, dataArea.getMaxX()); bar = new Rectangle2D.Double(bottom, left, top - bottom, translatedWidth); } else if (orientation == PlotOrientation.VERTICAL) { // clip top and bottom bounds to data area bottom = Math.max(bottom, dataArea.getMinY()); top = Math.min(top, dataArea.getMaxY()); bar = new Rectangle2D.Double(left, bottom, translatedWidth, top - bottom); } /* Paint itemPaint = getItemPaint(series, item); if (getGradientPaintTransformer() != null && itemPaint instanceof GradientPaint) { GradientPaint gp = (GradientPaint) itemPaint; itemPaint = getGradientPaintTransformer().transform(gp, bar); } g2.setPaint(itemPaint); */ if (dataset.getYValue(series, item) >= 0) { g2.setPaint(Color.red); } else { g2.setPaint(Color.green); } g2.fill(bar); if (isDrawBarOutline() && Math.abs(translatedEndX - translatedStartX) > 3) { Stroke stroke = getItemOutlineStroke(series, item); Paint paint = getItemOutlinePaint(series, item); if (stroke != null && paint != null) { g2.setStroke(stroke); g2.setPaint(paint); g2.draw(bar); } } if (isItemLabelVisible(series, item)) { XYItemLabelGenerator generator = getItemLabelGenerator(series, item); drawItemLabel(g2, dataset, series, item, plot, generator, bar, value1 < 0.0); } // update the crosshair point double x1 = (startX + endX) / 2.0; double y1 = dataset.getYValue(series, item); double transX1 = domainAxis.valueToJava2D(x1, dataArea, location); double transY1 = rangeAxis.valueToJava2D(y1, dataArea, plot.getRangeAxisEdge()); int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, rangeAxisIndex, transX1, transY1, plot.getOrientation()); EntityCollection entities = state.getEntityCollection(); if (entities != null) { addEntity(entities, bar, dataset, series, item, 0.0, 0.0); } }