List of usage examples for org.jfree.data.general DatasetUtilities isEmptyOrNull
public static boolean isEmptyOrNull(XYDataset dataset)
true if the dataset is empty (or null), and false otherwise. From source file:ucar.unidata.idv.control.chart.MyTimeSeriesPlot.java
/** * draw// w w w . java 2 s . c o m * * @param g2 the graphics * @param dataArea where the data area is * @param index which data set * @param info info * @param crosshairState crosshairState * * @return any drawn */ public boolean render(Graphics2D g2, Rectangle2D dataArea, int index, PlotRenderingInfo info, CrosshairState crosshairState) { XYDataset dataset = getDataset(index); if (DatasetUtilities.isEmptyOrNull(dataset)) { return false; } ValueAxis rangeAxis = getRangeAxisForDataset(index); ValueAxis domainAxis = getDomainAxisForDataset(index); AxisLocation rangeAxisLocation = getRangeAxisLocation(index); AxisLocation domainAxisLocation = getDomainAxisLocation(index); RectangleEdge rangeEdge = getRangeAxisEdge(); RectangleEdge domainEdge = getDomainAxisEdge(); int seriesCount = dataset.getSeriesCount(); // System.out.println ("********************************"); for (int series = seriesCount - 1; series >= 0; series--) { int itemCount = dataset.getItemCount(series); int[] xs = new int[itemCount]; int[] ys = new int[itemCount]; g2.setStroke(getRendererForDataset(dataset).getSeriesStroke(series)); g2.setPaint(getRendererForDataset(dataset).getSeriesPaint(series)); int pointCnt = 0; for (int item = 0; item < itemCount; item++) { double x1 = dataset.getXValue(series, item); double y1 = dataset.getYValue(series, item); if (!timeseries.valuesOk(index, x1, y1)) { if (pointCnt > 0) { g2.drawPolyline(xs, ys, pointCnt); pointCnt = 0; } continue; } double transX = domainAxis.valueToJava2D(x1, dataArea, domainEdge); double transY = rangeAxis.valueToJava2D(y1, dataArea, rangeEdge); if (!dataArea.contains(transX, transY)) { continue; } xs[pointCnt] = (int) (transX + 0.5); ys[pointCnt] = (int) (transY + 0.5); pointCnt++; if (pointCnt > 10) { g2.drawPolyline(xs, ys, pointCnt); xs[0] = xs[pointCnt - 1]; ys[0] = ys[pointCnt - 1]; pointCnt = 1; } } if (pointCnt > 1) { g2.drawPolyline(xs, ys, pointCnt); } long t2 = System.currentTimeMillis(); // System.err.println("time:" + (t2 - t1) + "ms #" + itemCount); } return true; }
From source file:org.openfaces.component.chart.impl.plots.XYPlotAdapter.java
@Override public boolean render(Graphics2D g2, Rectangle2D dataArea, int index, PlotRenderingInfo info, CrosshairState crosshairState) { final XYItemRenderer renderer = getRenderer(); final boolean customRenderingModeEnabled = renderer instanceof AreaFillRenderer; if (!customRenderingModeEnabled) { return super.render(g2, dataArea, index, info, crosshairState); }/* w w w .j ava2 s. c o m*/ XYDataset xyDataset = getDataset(index); final boolean isDataSetNotEmpty = !DatasetUtilities.isEmptyOrNull(xyDataset); if (!isDataSetNotEmpty) { return false; } ValueAxis xValueAxis = getDomainAxisForDataset(index); ValueAxis yValueAxis = getRangeAxisForDataset(index); XYItemRenderer xyItemRenderer = findRenderer(index); if (xValueAxis == null || yValueAxis == null || xyItemRenderer == null) { return false; } XYItemRendererState state = xyItemRenderer.initialise(g2, dataArea, this, xyDataset, info); boolean isReverseSeriesRenderingOrder = getSeriesRenderingOrder() == SeriesRenderingOrder.REVERSE; int totalRendererPasses = xyItemRenderer.getPassCount(); int totalSeries = xyDataset.getSeriesCount(); if (isReverseSeriesRenderingOrder) { for (int seriesIndex = totalSeries - 1; seriesIndex >= 0; seriesIndex--) { renderItems(g2, dataArea, info, crosshairState, xyDataset, xValueAxis, yValueAxis, xyItemRenderer, state, totalRendererPasses, seriesIndex); } } else { for (int seriesIndex = 0; seriesIndex < totalSeries; seriesIndex++) { renderItems(g2, dataArea, info, crosshairState, xyDataset, xValueAxis, yValueAxis, xyItemRenderer, state, totalRendererPasses, seriesIndex); } } return true; }
From source file:org.openfaces.component.chart.impl.plots.GridCategoryPlotAdapter.java
@Override public boolean render(Graphics2D g2, Rectangle2D dataArea, int index, PlotRenderingInfo info, CategoryCrosshairState crossHairState) { final boolean customRenderingModeEnabled = getRenderer() != null && getRenderer() instanceof AreaFillRenderer; if (!customRenderingModeEnabled) { return super.render(g2, dataArea, index, info, crossHairState); }//from ww w . j ava 2 s . co m CategoryItemRenderer categoryItemRenderer = getRenderer(index); CategoryDataset categoryDataset = getDataset(index); boolean isDataSetNotEmpty = !DatasetUtilities.isEmptyOrNull(categoryDataset); boolean isAscendingRowOrdering = getRowRenderingOrder() == SortOrder.ASCENDING; if (!isDataSetNotEmpty || categoryItemRenderer == null) { return false; } CategoryItemRendererState rendererState = categoryItemRenderer.initialise(g2, dataArea, this, index, info); rendererState.setCrosshairState(crossHairState); int totalRows = categoryDataset.getRowCount(); if (isAscendingRowOrdering) { for (int currentRowIndex = 0; currentRowIndex < totalRows; currentRowIndex++) { renderColumns(g2, rendererState, dataArea, categoryItemRenderer, categoryDataset, index, currentRowIndex); } } else { for (int currentRowIndex = totalRows - 1; currentRowIndex >= 0; currentRowIndex--) { renderColumns(g2, rendererState, dataArea, categoryItemRenderer, categoryDataset, index, currentRowIndex); } } return true; }
From source file:genlab.gui.jfreechart.EnhancedSpiderWebPlot.java
/** * Draws the plot on a Java 2D graphics device (such as the screen or a * printer)./* w ww. jav a 2 s.c o m*/ * * @param g2 the graphics device. * @param area the area within which the plot should be drawn. * @param anchor the anchor point (<code>null</code> permitted). * @param parentState the state from the parent plot, if there is one. * @param info collects info about the drawing. */ public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor, PlotState parentState, PlotRenderingInfo info) { // adjust for insets... RectangleInsets insets = getInsets(); insets.trim(area); if (info != null) { info.setPlotArea(area); info.setDataArea(area); } drawBackground(g2, area); //drawOutline(g2, area); Shape savedClip = g2.getClip(); g2.clip(area); Composite originalComposite = g2.getComposite(); g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getForegroundAlpha())); if (!DatasetUtilities.isEmptyOrNull(this.dataset)) { int seriesCount = 0, catCount = 0; if (this.dataExtractOrder == TableOrder.BY_ROW) { seriesCount = this.dataset.getRowCount(); catCount = this.dataset.getColumnCount(); } else { seriesCount = this.dataset.getColumnCount(); catCount = this.dataset.getRowCount(); } // ensure we have a maximum value to use on the axes if (this.maxValue == DEFAULT_MAX_VALUE) calculateMaxValue(seriesCount, catCount); // Next, setup the plot area // adjust the plot area by the interior spacing value double gapHorizontal = area.getWidth() * getInteriorGap(); double gapVertical = area.getHeight() * getInteriorGap(); double X = area.getX() + gapHorizontal / 2; double Y = area.getY() + gapVertical / 2; double W = area.getWidth() - gapHorizontal; double H = area.getHeight() - gapVertical; double headW = area.getWidth() * this.headPercent; double headH = area.getHeight() * this.headPercent; // make the chart area a square double min = Math.min(W, H) / 2; X = (X + X + W) / 2 - min; Y = (Y + Y + H) / 2 - min; W = 2 * min; H = 2 * min; Point2D centre = new Point2D.Double(X + W / 2, Y + H / 2); Rectangle2D radarArea = new Rectangle2D.Double(X, Y, W, H); // draw the axis and category label for (int cat = 0; cat < catCount; cat++) { double angle = getStartAngle() + (getDirection().getFactor() * cat * 360 / (catCount > 2 ? catCount : 3)); Point2D endPoint = getWebPoint(radarArea, angle, 1); // 1 = end of axis Line2D line = new Line2D.Double(centre, endPoint); g2.setPaint(this.axisLinePaint); g2.setStroke(this.axisLineStroke); g2.draw(line); drawLabel(g2, radarArea, 0.0, cat, angle, 360.0 / (catCount > 2 ? catCount : 3)); } // Now actually plot each of the series polygons.. for (int series = 0; series < seriesCount; series++) { drawRadarPoly(g2, radarArea, centre, info, series, catCount, headH, headW); } } else { drawNoDataMessage(g2, area); } g2.setClip(savedClip); g2.setComposite(originalComposite); //drawOutline(g2, area); }
From source file:spinworld.gui.RadarPlot.java
/** * Draws the plot on a Java 2D graphics device (such as the screen or a * printer).//from ww w. j a v a 2 s .c o m * * @param g2 the graphics device. * @param area the area within which the plot should be drawn. * @param anchor the anchor point (<code>null</code> permitted). * @param parentState the state from the parent plot, if there is one. * @param info collects info about the drawing. */ public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor, PlotState parentState, PlotRenderingInfo info) { // adjust for insets... RectangleInsets insets = getInsets(); insets.trim(area); if (info != null) { info.setPlotArea(area); info.setDataArea(area); } drawBackground(g2, area); drawOutline(g2, area); Shape savedClip = g2.getClip(); g2.clip(area); Composite originalComposite = g2.getComposite(); g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getForegroundAlpha())); if (!DatasetUtilities.isEmptyOrNull(this.dataset)) { int seriesCount = 0, catCount = 0; if (this.dataExtractOrder == TableOrder.BY_ROW) { seriesCount = this.dataset.getRowCount(); catCount = this.dataset.getColumnCount(); } else { seriesCount = this.dataset.getColumnCount(); catCount = this.dataset.getRowCount(); } // ensure we have origin and maximum value for each axis ensureBoundaryValues(seriesCount, catCount); // Next, setup the plot area // adjust the plot area by the interior spacing value double gapHorizontal = area.getWidth() * getInteriorGap(); double gapVertical = area.getHeight() * getInteriorGap(); double X = area.getX() + gapHorizontal / 2; double Y = area.getY() + gapVertical / 2; double W = area.getWidth() - gapHorizontal; double H = area.getHeight() - gapVertical; double headW = area.getWidth() * this.headPercent; double headH = area.getHeight() * this.headPercent; // make the chart area a square double min = Math.min(W, H) / 2; X = (X + X + W) / 2 - min; Y = (Y + Y + H) / 2 - min; W = 2 * min; H = 2 * min; Point2D centre = new Point2D.Double(X + W / 2, Y + H / 2); Rectangle2D radarArea = new Rectangle2D.Double(X, Y, W, H); // draw the axis and category label for (int cat = 0; cat < catCount; cat++) { double angle = getStartAngle() + (getDirection().getFactor() * cat * 360 / catCount); Point2D endPoint = getWebPoint(radarArea, angle, 1); // 1 = end of axis Line2D line = new Line2D.Double(centre, endPoint); g2.setPaint(this.axisLinePaint); g2.setStroke(this.axisLineStroke); g2.draw(line); if (isAxisTickVisible()) { drawTicks(g2, radarArea, angle, cat); } drawLabel(g2, area, radarArea, 0.0, cat, angle, 360.0 / catCount); } // Now actually plot each of the series polygons.. for (int series = 0; series < seriesCount; series++) { drawRadarPoly(g2, radarArea, centre, info, series, catCount, headH, headW); } } else { drawNoDataMessage(g2, area); } g2.setClip(savedClip); g2.setComposite(originalComposite); drawOutline(g2, area); }
From source file:ucar.unidata.idv.control.chart.MyXYPlot.java
/** * Draws a representation of the data within the dataArea region, using the * current renderer./*from w w w.ja v a2 s. c o m*/ * <P> * The <code>info</code> and <code>crosshairState</code> arguments may be * <code>null</code>. * * @param g2 the graphics device. * @param dataArea the region in which the data is to be drawn. * @param index the dataset index. * @param info an optional object for collection dimension information. * @param crosshairState collects crosshair information * (<code>null</code> permitted). * * @return A flag that indicates whether any data was actually rendered. */ public boolean render(Graphics2D g2, Rectangle2D dataArea, int index, PlotRenderingInfo info, CrosshairState crosshairState) { boolean foundData = false; XYDataset dataset = getDataset(index); if (!DatasetUtilities.isEmptyOrNull(dataset)) { foundData = true; ValueAxis xAxis = getDomainAxisForDataset(index); ValueAxis yAxis = getRangeAxisForDataset(index); XYItemRenderer renderer = getRenderer(index); if (renderer == null) { renderer = getRenderer(); } XYItemRendererState state = renderer.initialise(g2, dataArea, this, dataset, info); int passCount = renderer.getPassCount(); SeriesRenderingOrder seriesOrder = getSeriesRenderingOrder(); ucar.unidata.util.Trace.call1("render", " pass:" + passCount); if (seriesOrder == SeriesRenderingOrder.REVERSE) { //render series in reverse order for (int pass = 0; pass < passCount; pass++) { int seriesCount = dataset.getSeriesCount(); for (int series = seriesCount - 1; series >= 0; series--) { int itemCount = dataset.getItemCount(series); ucar.unidata.util.Trace.call1("series loop", " items=" + itemCount + " renderer:" + renderer.getClass().getName()); for (int item = 0; item < itemCount; item++) { renderer.drawItem(g2, state, dataArea, info, this, xAxis, yAxis, dataset, series, item, crosshairState, pass); } ucar.unidata.util.Trace.call2("series loop"); } } } else { //render series in forward order for (int pass = 0; pass < passCount; pass++) { int seriesCount = dataset.getSeriesCount(); for (int series = 0; series < seriesCount; series++) { int itemCount = dataset.getItemCount(series); for (int item = 0; item < itemCount; item++) { renderer.drawItem(g2, state, dataArea, info, this, xAxis, yAxis, dataset, series, item, crosshairState, pass); } } } } ucar.unidata.util.Trace.call2("render"); } return foundData; }