List of usage examples for org.jfree.data.xy OHLCDataset getXValue
public double getXValue(int series, int item);
From source file:edu.dlnu.liuwenpeng.render.CandlestickRenderer.java
/** * Draws the visual representation of a single data item. * //w w w .j a v a2 s. c o m * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area within which the plot is being drawn. * @param info collects info 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) { boolean horiz; PlotOrientation orientation = plot.getOrientation(); if (orientation == PlotOrientation.HORIZONTAL) { horiz = true; } else if (orientation == PlotOrientation.VERTICAL) { horiz = false; } else { return; } // setup for collecting optional entity info... EntityCollection entities = null; if (info != null) { entities = info.getOwner().getEntityCollection(); } OHLCDataset highLowData = (OHLCDataset) dataset; double x = highLowData.getXValue(series, item); double yHigh = highLowData.getHighValue(series, item); double yLow = highLowData.getLowValue(series, item); double yOpen = highLowData.getOpenValue(series, item); double yClose = highLowData.getCloseValue(series, item); RectangleEdge domainEdge = plot.getDomainAxisEdge(); double xx = domainAxis.valueToJava2D(x, dataArea, domainEdge); RectangleEdge edge = plot.getRangeAxisEdge(); double yyHigh = rangeAxis.valueToJava2D(yHigh, dataArea, edge); double yyLow = rangeAxis.valueToJava2D(yLow, dataArea, edge); double yyOpen = rangeAxis.valueToJava2D(yOpen, dataArea, edge); double yyClose = rangeAxis.valueToJava2D(yClose, dataArea, edge); double volumeWidth; double stickWidth; if (this.candleWidth > 0) { // These are deliberately not bounded to minimums/maxCandleWidth to // retain old behaviour. volumeWidth = this.candleWidth; stickWidth = this.candleWidth; } else { double xxWidth = 0; int itemCount; switch (this.autoWidthMethod) { case WIDTHMETHOD_AVERAGE: itemCount = highLowData.getItemCount(series); if (horiz) { xxWidth = dataArea.getHeight() / itemCount; } else { xxWidth = dataArea.getWidth() / itemCount; } break; case WIDTHMETHOD_SMALLEST: // Note: It would be nice to pre-calculate this per series itemCount = highLowData.getItemCount(series); double lastPos = -1; xxWidth = dataArea.getWidth(); for (int i = 0; i < itemCount; i++) { double pos = domainAxis.valueToJava2D(highLowData.getXValue(series, i), dataArea, domainEdge); if (lastPos != -1) { xxWidth = Math.min(xxWidth, Math.abs(pos - lastPos)); } lastPos = pos; } break; case WIDTHMETHOD_INTERVALDATA: IntervalXYDataset intervalXYData = (IntervalXYDataset) dataset; double startPos = domainAxis.valueToJava2D(intervalXYData.getStartXValue(series, item), dataArea, plot.getDomainAxisEdge()); double endPos = domainAxis.valueToJava2D(intervalXYData.getEndXValue(series, item), dataArea, plot.getDomainAxisEdge()); xxWidth = Math.abs(endPos - startPos); break; } xxWidth -= 2 * this.autoWidthGap; xxWidth *= this.autoWidthFactor; xxWidth = Math.min(xxWidth, this.maxCandleWidth); volumeWidth = Math.max(Math.min(1, this.maxCandleWidth), xxWidth); stickWidth = Math.max(Math.min(3, this.maxCandleWidth), xxWidth); } Paint p = getItemPaint(series, item); Paint outlinePaint = null; if (this.useOutlinePaint) { outlinePaint = getItemOutlinePaint(series, item); } Stroke s = getItemStroke(series, item); g2.setStroke(s); if (this.drawVolume) { int volume = (int) highLowData.getVolumeValue(series, item); double volumeHeight = volume / this.maxVolume; double min, max; if (horiz) { min = dataArea.getMinX(); max = dataArea.getMaxX(); } else { min = dataArea.getMinY(); max = dataArea.getMaxY(); } double zzVolume = volumeHeight * (max - min); g2.setPaint(getVolumePaint()); Composite originalComposite = g2.getComposite(); g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f)); if (horiz) { g2.fill(new Rectangle2D.Double(min, xx - volumeWidth / 2, zzVolume, volumeWidth)); } else { g2.fill(new Rectangle2D.Double(xx - volumeWidth / 2, max - zzVolume, volumeWidth, zzVolume)); } g2.setComposite(originalComposite); } if (this.useOutlinePaint) { g2.setPaint(outlinePaint); } else { g2.setPaint(p); } double yyMaxOpenClose = Math.max(yyOpen, yyClose); double yyMinOpenClose = Math.min(yyOpen, yyClose); double maxOpenClose = Math.max(yOpen, yClose); double minOpenClose = Math.min(yOpen, yClose); // draw the upper shadow if (yHigh > maxOpenClose) { if (yClose > yOpen) { g2.setPaint(Color.green); } else { g2.setPaint(Color.red); } if (horiz) { g2.draw(new Line2D.Double(yyHigh, xx, yyMaxOpenClose, xx)); } else { g2.draw(new Line2D.Double(xx, yyHigh, xx, yyMaxOpenClose)); } } // draw the lower shadow if (yLow < minOpenClose) { if (yClose > yOpen) { g2.setPaint(Color.green); } else { g2.setPaint(Color.red); } if (horiz) { g2.draw(new Line2D.Double(yyLow, xx, yyMinOpenClose, xx)); } else { g2.draw(new Line2D.Double(xx, yyLow, xx, yyMinOpenClose)); } } // draw the body Rectangle2D body = null; Rectangle2D hotspot = null; double length = Math.abs(yyHigh - yyLow); double base = Math.min(yyHigh, yyLow); if (horiz) { body = new Rectangle2D.Double(yyMinOpenClose, xx - stickWidth / 2, yyMaxOpenClose - yyMinOpenClose, stickWidth); hotspot = new Rectangle2D.Double(base, xx - stickWidth / 2, length, stickWidth); } else { body = new Rectangle2D.Double(xx - stickWidth / 2, yyMinOpenClose, stickWidth, yyMaxOpenClose - yyMinOpenClose); hotspot = new Rectangle2D.Double(xx - stickWidth / 2, base, stickWidth, length); } if (yClose > yOpen) { if (this.upPaint != null) { g2.setPaint(this.upPaint); } else { g2.setPaint(p); } g2.fill(body); } else { if (this.downPaint != null) { g2.setPaint(this.downPaint); } else { g2.setPaint(p); } g2.fill(body); } if (this.useOutlinePaint) { g2.setPaint(outlinePaint); } else { if (yClose > yOpen) { g2.setPaint(Color.green); } else { g2.setPaint(p); } } g2.draw(body); // add an entity for the item... if (entities != null) { addEntity(entities, hotspot, dataset, series, item, 0.0, 0.0); } }
From source file:org.jfree.data.general.DatasetUtils.java
/** * Returns the range of y-values in the specified dataset for the * data items belonging to the visible series and with x-values in the * given range./* w ww . jav a2s . c o m*/ * * @param dataset the dataset ({@code null} not permitted). * @param visibleSeriesKeys the visible series keys ({@code null} not * permitted). * @param xRange the x-range ({@code null} not permitted). * @param includeInterval a flag that determines whether or not the * y-interval for the dataset is included (this only applies if the * dataset is an instance of IntervalXYDataset). * * @return The y-range (possibly {@code null}). * * @since 1.0.13 */ public static Range iterateToFindRangeBounds(XYDataset dataset, List visibleSeriesKeys, Range xRange, boolean includeInterval) { Args.nullNotPermitted(dataset, "dataset"); Args.nullNotPermitted(visibleSeriesKeys, "visibleSeriesKeys"); Args.nullNotPermitted(xRange, "xRange"); double minimum = Double.POSITIVE_INFINITY; double maximum = Double.NEGATIVE_INFINITY; // handle three cases by dataset type if (includeInterval && dataset instanceof OHLCDataset) { // handle special case of OHLCDataset OHLCDataset ohlc = (OHLCDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = ohlc.getXValue(series, item); if (xRange.contains(x)) { double lvalue = ohlc.getLowValue(series, item); double uvalue = ohlc.getHighValue(series, item); if (!Double.isNaN(lvalue)) { minimum = Math.min(minimum, lvalue); } if (!Double.isNaN(uvalue)) { maximum = Math.max(maximum, uvalue); } } } } } else if (includeInterval && dataset instanceof BoxAndWhiskerXYDataset) { // handle special case of BoxAndWhiskerXYDataset BoxAndWhiskerXYDataset bx = (BoxAndWhiskerXYDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = bx.getXValue(series, item); if (xRange.contains(x)) { Number lvalue = bx.getMinRegularValue(series, item); Number uvalue = bx.getMaxRegularValue(series, item); if (lvalue != null) { minimum = Math.min(minimum, lvalue.doubleValue()); } if (uvalue != null) { maximum = Math.max(maximum, uvalue.doubleValue()); } } } } } else if (includeInterval && dataset instanceof IntervalXYDataset) { // handle special case of IntervalXYDataset IntervalXYDataset ixyd = (IntervalXYDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = ixyd.getXValue(series, item); if (xRange.contains(x)) { double yvalue = ixyd.getYValue(series, item); double lvalue = ixyd.getStartYValue(series, item); double uvalue = ixyd.getEndYValue(series, item); if (!Double.isNaN(yvalue)) { minimum = Math.min(minimum, yvalue); maximum = Math.max(maximum, yvalue); } if (!Double.isNaN(lvalue)) { minimum = Math.min(minimum, lvalue); } if (!Double.isNaN(uvalue)) { maximum = Math.max(maximum, uvalue); } } } } } else { // standard case - plain XYDataset Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = dataset.getXValue(series, item); double y = dataset.getYValue(series, item); if (xRange.contains(x)) { if (!Double.isNaN(y)) { minimum = Math.min(minimum, y); maximum = Math.max(maximum, y); } } } } } if (minimum == Double.POSITIVE_INFINITY) { return null; } else { return new Range(minimum, maximum); } }
From source file:org.jfree.data.general.DatasetUtilities.java
/** * Returns the range of y-values in the specified dataset for the * data items belonging to the visible series and with x-values in the * given range.//from w w w . j a v a 2s . c o m * * @param dataset the dataset (<code>null</code> not permitted). * @param visibleSeriesKeys the visible series keys (<code>null</code> not * permitted). * @param xRange the x-range (<code>null</code> not permitted). * @param includeInterval a flag that determines whether or not the * y-interval for the dataset is included (this only applies if the * dataset is an instance of IntervalXYDataset). * * @return The y-range (possibly <code>null</code>). * * @since 1.0.13 */ public static Range iterateToFindRangeBounds(XYDataset dataset, List visibleSeriesKeys, Range xRange, boolean includeInterval) { ParamChecks.nullNotPermitted(dataset, "dataset"); ParamChecks.nullNotPermitted(visibleSeriesKeys, "visibleSeriesKeys"); ParamChecks.nullNotPermitted(xRange, "xRange"); double minimum = Double.POSITIVE_INFINITY; double maximum = Double.NEGATIVE_INFINITY; // handle three cases by dataset type if (includeInterval && dataset instanceof OHLCDataset) { // handle special case of OHLCDataset OHLCDataset ohlc = (OHLCDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = ohlc.getXValue(series, item); if (xRange.contains(x)) { double lvalue = ohlc.getLowValue(series, item); double uvalue = ohlc.getHighValue(series, item); if (!Double.isNaN(lvalue)) { minimum = Math.min(minimum, lvalue); } if (!Double.isNaN(uvalue)) { maximum = Math.max(maximum, uvalue); } } } } } else if (includeInterval && dataset instanceof BoxAndWhiskerXYDataset) { // handle special case of BoxAndWhiskerXYDataset BoxAndWhiskerXYDataset bx = (BoxAndWhiskerXYDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = bx.getXValue(series, item); if (xRange.contains(x)) { Number lvalue = bx.getMinRegularValue(series, item); Number uvalue = bx.getMaxRegularValue(series, item); if (lvalue != null) { minimum = Math.min(minimum, lvalue.doubleValue()); } if (uvalue != null) { maximum = Math.max(maximum, uvalue.doubleValue()); } } } } } else if (includeInterval && dataset instanceof IntervalXYDataset) { // handle special case of IntervalXYDataset IntervalXYDataset ixyd = (IntervalXYDataset) dataset; Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = ixyd.getXValue(series, item); if (xRange.contains(x)) { double lvalue = ixyd.getStartYValue(series, item); double uvalue = ixyd.getEndYValue(series, item); if (!Double.isNaN(lvalue)) { minimum = Math.min(minimum, lvalue); } if (!Double.isNaN(uvalue)) { maximum = Math.max(maximum, uvalue); } } } } } else { // standard case - plain XYDataset Iterator iterator = visibleSeriesKeys.iterator(); while (iterator.hasNext()) { Comparable seriesKey = (Comparable) iterator.next(); int series = dataset.indexOf(seriesKey); int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { double x = dataset.getXValue(series, item); double y = dataset.getYValue(series, item); if (xRange.contains(x)) { if (!Double.isNaN(y)) { minimum = Math.min(minimum, y); maximum = Math.max(maximum, y); } } } } } if (minimum == Double.POSITIVE_INFINITY) { return null; } else { return new Range(minimum, maximum); } }