Example usage for org.jfree.data.xy XYZDataset getXValue

List of usage examples for org.jfree.data.xy XYZDataset getXValue

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Introduction

In this page you can find the example usage for org.jfree.data.xy XYZDataset getXValue.

Prototype

public double getXValue(int series, int item);

Source Link

Document

Returns the x-value for an item within a series.

Usage

From source file:ch.zhaw.ias.dito.ui.util.BlockPlotPanel.java

public BlockPlotPanel(Matrix m, double lowerBound, double upperBound) {
    super(new BorderLayout());
    NumberAxis xAxis = new NumberAxis();
    xAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    xAxis.setLowerMargin(1.0);/* ww  w.j  a  va2s . c  o m*/
    xAxis.setUpperMargin(0.0);
    NumberAxis yAxis = new NumberAxis();
    yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    yAxis.setLowerMargin(1.0);
    yAxis.setUpperMargin(0.0);
    XYBlockRenderer renderer = new XYBlockRenderer();
    renderer.setBaseToolTipGenerator(new XYToolTipGenerator() {
        @Override
        public String generateToolTip(XYDataset dataset, int series, int item) {
            XYZDataset xyzDataset = (XYZDataset) dataset;
            double x = xyzDataset.getXValue(series, item);
            double y = xyzDataset.getYValue(series, item);
            double z = xyzDataset.getZValue(series, item);
            return ("X=" + x + ", Y=" + y + ", Z=" + z);
        }
    });
    PaintScale scale = new ColorPaintScale(lowerBound, upperBound);
    renderer.setPaintScale(scale);
    ValueAxis axis = new NumberAxis();
    axis.setLowerBound(scale.getLowerBound());
    axis.setUpperBound(scale.getUpperBound());
    PaintScaleLegend legend = new PaintScaleLegend(scale, axis);
    legend.setMargin(new RectangleInsets(10, 10, 10, 10));
    legend.setPosition(RectangleEdge.RIGHT);

    MatrixXYDataset dataset = new MatrixXYDataset(m);
    plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    chart = new JFreeChart(plot);
    chart.removeLegend();
    chart.addSubtitle(legend);
    chart.setBackgroundPaint(Color.white);

    ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setDisplayToolTips(true);
    this.add(chartPanel, BorderLayout.CENTER);
}

From source file:net.sf.dynamicreports.test.jasper.AbstractJasperChartTest.java

protected void xyzChartDataTest(JFreeChart chart, int series, String seriesName, Number[][] values) {
    XYZDataset dataset = (XYZDataset) chart.getXYPlot().getDataset();
    int index = 0;
    for (Number[] numbers : values) {
        Assert.assertEquals("chart data series name", seriesName, dataset.getSeriesKey(series));
        Assert.assertEquals("chart data x", numbers[0], dataset.getXValue(series, index));
        Assert.assertEquals("chart data y", numbers[1], dataset.getYValue(series, index));
        Assert.assertEquals("chart data z", numbers[2], dataset.getZValue(series, index));
        index++;//www. j  a  va  2s.  com
    }
}

From source file:net.sf.maltcms.chromaui.charts.events.TICChartHandler.java

/**
 *
 * @param v//  w ww.jav a  2  s.c  o m
 */

@Override
public void listen(final IEvent<XYItemEntity> v) {
    if (!(v.get().getDataset() instanceof XYZDataset)) {
        Logger.getLogger(getClass().getName()).warning("Can not handle instances other than XYZDataset!");
        return;
    }
    final ValueAxis domainAxis = xypl.getDomainAxis();
    //System.out.println("Received event");
    //           Runnable r = new Runnable() {
    //            
    //            @Override
    //            public void run() {
    //               xypl.setNoDataMessage("Loading...");
    //               xypl.setDataset(null);
    //            }
    //           };
    //           
    //           SwingUtilities.invokeLater(r);
    //           
    Runnable s = new Runnable() {

        @Override
        public void run() {
            long start = System.currentTimeMillis();
            //System.out.println("Running update of TICChartHandler");
            XYItemEntity e = v.get();
            if (e.getDataset() instanceof XYZDataset) {
                final XYZDataset xyz = (XYZDataset) e.getDataset();
                final int seriesIndex = e.getSeriesIndex();
                final int y = (int) xyz.getYValue(seriesIndex, e.getItem());
                final int x = (int) xyz.getXValue(seriesIndex, e.getItem());
                XYDataset xydss;
                if (ticCache.containsKey(y)) {
                    xydss = ticCache.get(y);
                } else {
                    final DefaultXYDataset xyds = new DefaultXYDataset();
                    double[][] d = new double[2][scanlines];
                    Index idx = data.getIndex();
                    //columns, y
                    for (int j = 0; j < scanlines; j++) {
                        idx.set(scansPerMod * j + y);
                        d[0][j] = j;
                        d[1][j] = data.getDouble(idx);
                    }
                    xyds.addSeries("TIC@[" + y + "]", d);
                    xydss = xyds;
                    ticCache.put(y, xyds);
                }
                final XYDataset fds = xydss;
                Runnable runnable = new Runnable() {

                    @Override
                    public void run() {
                        xypl.setDataset(fds);
                        xypl.getRenderer().setBaseItemLabelsVisible(true);
                        xypl.getRenderer().setBasePaint(Color.GRAY);
                        xypl.getRenderer().setBaseOutlinePaint(Color.DARK_GRAY);
                        xypl.setDomainCrosshairLockedOnData(true);
                        xypl.setDomainCrosshairValue(x, true);
                        if (valueAxisFixed) {
                            xypl.getRangeAxis().setAutoRange(false);
                            xypl.getRangeAxis().setLowerBound(valueAxisMin);
                            xypl.getRangeAxis().setUpperBound(valueAxisMax);
                        } else {
                            xypl.getRangeAxis().setAutoRange(true);
                        }

                    }
                };
                SwingUtilities.invokeLater(runnable);
                //               }else{
                //                  System.err.println("Can only handle XYZDatasets!");
                //               }
                //System.out.println("Set TIC data in "+(System.currentTimeMillis()-start));
            }
        }
    };
    es.submit(s);
}

From source file:org.talend.dataprofiler.chart.util.TopChartFactory.java

/**
 * Creates a bubble chart with default settings. The chart is composed of an {@link XYPlot}, with a {@link NumberAxis} for the
 * domain axis, a {@link NumberAxis} for the range axis, and an {@link XYBubbleRenderer} to draw the data items.
 * //from w w  w  .ja  v  a 2  s . c  o m
 * This method is copied from
 * {@link org.jfree.chart.ChartFactory#createBubbleChart(String, String, String, XYZDataset, PlotOrientation, boolean, boolean, boolean)}
 * 
 * @param title the chart title (<code>null</code> permitted).
 * @param xAxisLabel a label for the X-axis (<code>null</code> permitted).
 * @param yAxisLabel a label for the Y-axis (<code>null</code> permitted).
 * @param dataset the dataset for the chart (<code>null</code> permitted).
 * @param orientation the orientation (horizontal or vertical) (<code>null</code> NOT permitted).
 * @param legend a flag specifying whether or not a legend is required.
 * @param tooltips configure chart to generate tool tips?
 * @param urls configure chart to generate URLs?
 * 
 * @return A bubble chart.
 */
public static JFreeChart createBubbleChart(String title, String xAxisLabel, String yAxisLabel,
        XYZDataset dataset, PlotOrientation orientation, boolean legend, boolean tooltips, boolean urls) {

    if (orientation == null) {
        throw new IllegalArgumentException(Messages.getString("TopChartFactory.argument")); //$NON-NLS-1$
    }
    NumberAxis xAxis = new NumberAxis(xAxisLabel);
    xAxis.setAutoRangeIncludesZero(false);
    NumberAxis yAxis = new NumberAxis(yAxisLabel);
    yAxis.setAutoRangeIncludesZero(false);

    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);

    XYItemRenderer renderer = new XYBubbleRenderer(XYBubbleRenderer.SCALE_ON_RANGE_AXIS) {

        @Override
        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) {

            // return straight away if the item is not visible
            if (!getItemVisible(series, item)) {
                return;
            }

            PlotOrientation orientation = plot.getOrientation();

            // get the data point...
            double x = dataset.getXValue(series, item);
            double y = dataset.getYValue(series, item);
            double z = Double.NaN;
            if (dataset instanceof XYZDataset) {
                XYZDataset xyzData = (XYZDataset) dataset;
                z = xyzData.getZValue(series, item);
            }
            if (!Double.isNaN(z)) {
                RectangleEdge domainAxisLocation = plot.getDomainAxisEdge();
                RectangleEdge rangeAxisLocation = plot.getRangeAxisEdge();
                double transX = domainAxis.valueToJava2D(x, dataArea, domainAxisLocation);
                double transY = rangeAxis.valueToJava2D(y, dataArea, rangeAxisLocation);

                double transDomain = 0.0;
                double transRange = 0.0;
                double zero;

                // MOD scorreia +2L avoid points: minimal size of circle must be 1
                // z = z * transX + 1;

                // ADD xqliu 2009-07-06 bug 8035
                double zSize = getBubbleSize(z); // calculate the multiple of bubble's default size
                z = 0; // use bubble's default size
                // ~

                switch (getScaleType()) {
                case SCALE_ON_DOMAIN_AXIS:
                    zero = domainAxis.valueToJava2D(0.0, dataArea, domainAxisLocation);
                    transDomain = domainAxis.valueToJava2D(z, dataArea, domainAxisLocation) - zero;
                    transRange = transDomain;
                    break;
                case SCALE_ON_RANGE_AXIS:
                    zero = rangeAxis.valueToJava2D(0.0, dataArea, rangeAxisLocation);
                    transRange = zero - rangeAxis.valueToJava2D(z, dataArea, rangeAxisLocation);
                    transDomain = transRange;
                    break;
                default:
                    double zero1 = domainAxis.valueToJava2D(0.0, dataArea, domainAxisLocation);
                    double zero2 = rangeAxis.valueToJava2D(0.0, dataArea, rangeAxisLocation);
                    transDomain = domainAxis.valueToJava2D(z, dataArea, domainAxisLocation) - zero1;
                    transRange = zero2 - rangeAxis.valueToJava2D(z, dataArea, rangeAxisLocation);
                }
                transDomain = Math.abs(transDomain);
                transRange = Math.abs(transRange);

                // MODSCA 2008-11-27 enlarge ellipse by diag% of the total diagonal
                double diag = Math.sqrt(dataArea.getHeight() * dataArea.getHeight()
                        + dataArea.getWidth() * dataArea.getWidth());
                transDomain += diag / 100;
                transRange += diag / 100;

                Ellipse2D circle = null;

                // ADD xqliu 2009-07-06 bug 8035
                transDomain *= zSize;
                transRange *= zSize;
                // ~

                if (orientation == PlotOrientation.VERTICAL) {
                    circle = new Ellipse2D.Double(transX - transDomain / 2.0, transY - transRange / 2.0,
                            transDomain, transRange);
                } else if (orientation == PlotOrientation.HORIZONTAL) {
                    circle = new Ellipse2D.Double(transY - transRange / 2.0, transX - transDomain / 2.0,
                            transRange, transDomain);
                }
                g2.setPaint(getItemPaint(series, item));
                g2.fill(circle);
                g2.setStroke(getItemOutlineStroke(series, item));
                g2.setPaint(getItemOutlinePaint(series, item));
                g2.draw(circle);

                if (isItemLabelVisible(series, item)) {
                    if (orientation == PlotOrientation.VERTICAL) {
                        drawItemLabel(g2, orientation, dataset, series, item, transX, transY, false);
                    } else if (orientation == PlotOrientation.HORIZONTAL) {
                        drawItemLabel(g2, orientation, dataset, series, item, transY, transX, false);
                    }
                }

                // add an entity if this info is being collected
                EntityCollection entities = null;
                if (info != null) {
                    entities = info.getOwner().getEntityCollection();
                    if (entities != null && circle.intersects(dataArea)) {
                        addEntity(entities, circle, dataset, series, item, circle.getCenterX(),
                                circle.getCenterY());
                    }
                }

                int domainAxisIndex = plot.getDomainAxisIndex(domainAxis);
                int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis);
                updateCrosshairValues(crosshairState, x, y, domainAxisIndex, rangeAxisIndex, transX, transY,
                        orientation);
            }

        }

        /**
         * DOC xqliu : calculate the size of bubble. for bug 8035 2009-07-06.
         * 
         * @param z multiple of bubble's default size
         * @return
         */
        private double getBubbleSize(double z) {
            if (z > 0 && z <= 10) {
                return 2;
            } else if (z > 10 && z <= 100) {
                return 3;
            } else if (z > 100) {
                return 4;
            }
            return 1;
        }

    };
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardXYZToolTipGenerator());
    }
    if (urls) {
        renderer.setURLGenerator(new StandardXYZURLGenerator());
    }
    plot.setRenderer(renderer);
    plot.setOrientation(orientation);

    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

    return chart;

}

From source file:net.sf.maltcms.chromaui.charts.Chromatogram1DChartProvider.java

/**
 *
 * @param dataset//from www .  j  a  va  2 s .c  om
 * @param tooltipGenerator
 * @param minRange
 * @param maxRange
 * @param useRT
 * @return
 */
public XYPlot provide1DCoPlot(XYZDataset dataset, SelectionAwareXYTooltipGenerator tooltipGenerator,
        double minRange, double maxRange, boolean useRT) {
    XYBlockRenderer xyb = new XYBlockRenderer();
    GradientPaintScale ps = new GradientPaintScale(ImageTools.createSampleTable(256), minRange, maxRange,
            ImageTools.rampToColorArray(new ColorRampReader().readColorRamp("res/colorRamps/bcgyr.csv")));

    xyb.setPaintScale(ps);
    final String[] colnames = new String[dataset.getSeriesCount()];
    for (int i = 0; i < dataset.getSeriesCount(); i++) {
        colnames[i] = "" + dataset.getSeriesKey(i);//StringTools.removeFileExt(fragments.get(i).getName());
    }
    NumberAxis na = null;
    if (useRT) {
        na = new NumberAxis("time [s]");
        na.setAutoRangeIncludesZero(false);
        na.setLowerMargin(0);
        na.setUpperMargin(0);
    } else {
        na = new NumberAxis("scan index");
    }
    // na.setVerticalTickLabels(true);
    XYPlot xyp = new XYPlot(dataset, na, new SymbolAxis("chromatogram", colnames), xyb);
    //xyb.setBlockWidth(1);
    xyp.setBackgroundPaint(ps.getPaint(ps.getLowerBound()));
    tooltipGenerator.setXYToolTipGenerator(new XYZToolTipGenerator() {
        @Override
        public String generateToolTip(XYZDataset xyzd, int i, int i1) {
            return colnames[xyzd.getY(i, i1).intValue()] + " @" + xyzd.getXValue(i, i1) + " = "
                    + xyzd.getZValue(i, i1);
        }

        @Override
        public String generateToolTip(XYDataset xyd, int i, int i1) {
            if (xyd instanceof XYZDataset) {
                return generateToolTip((XYZDataset) xyd, i, i1);
            }
            return colnames[xyd.getY(i, i1).intValue()] + ":" + xyd.getXValue(i, i1);
        }
    });
    xyb.setBaseToolTipGenerator(tooltipGenerator);
    return xyp;
}

From source file:net.sf.maltcms.chromaui.charts.Chromatogram1DChartProvider.java

/**
 *
 * @param fragments/*from  w  w w. jav a  2 s .com*/
 * @param ticvar
 * @param useRT
 * @return
 */
public XYPlot provide1DCoPlot(List<IFileFragment> fragments, String ticvar, boolean useRT) {

    final String satVar = "scan_acquisition_time";

    DefaultXYZDataset cd = new DefaultXYZDataset();
    int rowIdx = 0;
    double min = 0;
    double max = 1;
    double minRT = Double.POSITIVE_INFINITY;
    double maxRT = Double.NEGATIVE_INFINITY;

    int y = 0;
    for (IFileFragment f : fragments) {

        double[] domainValues = null;
        if (useRT) {
            domainValues = (double[]) f.getChild(satVar).getArray().get1DJavaArray(double.class);
        } else {
            domainValues = (double[]) f.getChild("scan_index").getArray().get1DJavaArray(double.class);
        }

        double[] tic = (double[]) f.getChild(ticvar).getArray().get1DJavaArray(double.class);
        double maxtic = MathTools.max(tic);
        double mintic = MathTools.min(tic);
        double[][] values = new double[3][tic.length];
        for (int i = 0; i < tic.length; i++) {
            values[0][i] = domainValues[i];
            values[1][i] = y;
            values[2][i] = Math.sqrt((tic[i] - mintic) / (maxtic - mintic));
        }

        y++;
        cd.addSeries(f.getName(), values);
    }

    // ArrayDouble.D1 a = new ArrayDouble.D1(npoints);
    // int offset = 0;
    // for (IFileFragment f : t) {
    // Array tic = f.getChild(ticvar).getArray();
    // int len = tic.getShape()[0];
    // Array.arraycopy(tic, 0, a, offset, len);
    // offset += len;
    // }
    // histogram with fixed binsize
    // fill intensities into adequate bin, raise count in bin by one
    // afterwards, relative frequency within a bin gives a normalization
    // coefficient
    XYBlockRenderer xyb = new XYBlockRenderer();
    GradientPaintScale ps = new GradientPaintScale(ImageTools.createSampleTable(256), min, max,
            ImageTools.rampToColorArray(new ColorRampReader().readColorRamp("res/colorRamps/bcgyr.csv")));

    xyb.setPaintScale(ps);
    final String[] colnames = new String[fragments.size()];
    for (int i = 0; i < colnames.length; i++) {
        colnames[i] = StringTools.removeFileExt(fragments.get(i).getName());
    }
    NumberAxis na = null;
    if (useRT) {
        na = new NumberAxis("time [s]");
        na.setAutoRangeIncludesZero(false);
        na.setLowerMargin(0);
        na.setUpperMargin(0);
    } else {
        na = new NumberAxis("scan index");
    }
    // na.setVerticalTickLabels(true);
    XYPlot xyp = new XYPlot(cd, na, new SymbolAxis("chromatogram", colnames), xyb);
    xyb.setBlockWidth(1);
    xyp.setBackgroundPaint(Color.BLACK);
    xyb.setBaseToolTipGenerator(new XYZToolTipGenerator() {
        @Override
        public String generateToolTip(XYZDataset xyzd, int i, int i1) {
            return colnames[xyzd.getY(i, i1).intValue()] + " @" + xyzd.getXValue(i, i1) + " = "
                    + xyzd.getZValue(i, i1);
        }

        @Override
        public String generateToolTip(XYDataset xyd, int i, int i1) {
            if (xyd instanceof XYZDataset) {
                return generateToolTip((XYZDataset) xyd, i, i1);
            }
            return colnames[xyd.getY(i, i1).intValue()] + ":" + xyd.getXValue(i, i1);
        }
    });
    return xyp;
}

From source file:org.gumtree.vis.hist2d.Hist2DPanel.java

private boolean updateCurrentMaskRectangle(XYItemEntity startEntity, XYItemEntity endEntity) {
    if (currentMaskRectangle != null) {
        if (startEntity != null && endEntity != null) {
            IDataset startDataset = (IDataset) startEntity.getDataset();
            IDataset endDataset = (IDataset) endEntity.getDataset();
            if (startDataset instanceof XYZDataset && endDataset instanceof XYZDataset) {
                XYZDataset start = (XYZDataset) startDataset;
                XYZDataset end = (XYZDataset) endDataset;
                double xStart = start.getXValue(0, startEntity.getItem());
                double yStart = start.getYValue(0, startEntity.getItem());
                double xEnd = end.getXValue(0, endEntity.getItem());
                double yEnd = end.getYValue(0, endEntity.getItem());
                currentMaskRectangle.setRectangleFrame(new Rectangle2D.Double(Math.min(xStart, xEnd),
                        Math.min(yStart, yEnd), Math.abs(xStart - xEnd), Math.abs(yStart - yEnd)));
                //                System.out.println("[" + xStart + ", " + yStart + ", " + xEnd + ", " + yEnd);
                fireMaskUpdateEvent(currentMaskRectangle);
                return true;
            }/*from w  w w .  j  a va2s .  c o  m*/
        }
    }
    return false;
}

From source file:org.jfree.data.general.DatasetUtils.java

/**
 * Returns the range of z-values in the specified dataset for the
 * data items belonging to the visible series and with x-values in the
 * given range./* ww  w  . j a va 2  s.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
 *     z-interval for the dataset is included (this only applies if the
 *     dataset has an interval, which is currently not supported).
 *
 * @return The y-range (possibly {@code null}).
 */
public static Range iterateToFindZBounds(XYZDataset 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;

    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 z = dataset.getZValue(series, item);
            if (xRange.contains(x)) {
                if (!Double.isNaN(z)) {
                    minimum = Math.min(minimum, z);
                    maximum = Math.max(maximum, z);
                }
            }
        }
    }

    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 z-values in the specified dataset for the
 * data items belonging to the visible series and with x-values in the
 * given range.//ww  w  .j a va 2s  .  c om
 *
 * @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
 *     z-interval for the dataset is included (this only applies if the
 *     dataset has an interval, which is currently not supported).
 *
 * @return The y-range (possibly <code>null</code>).
 */
public static Range iterateToFindZBounds(XYZDataset 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;

    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 z = dataset.getZValue(series, item);
            if (xRange.contains(x)) {
                if (!Double.isNaN(z)) {
                    minimum = Math.min(minimum, z);
                    maximum = Math.max(maximum, z);
                }
            }
        }
    }

    if (minimum == Double.POSITIVE_INFINITY) {
        return null;
    } else {
        return new Range(minimum, maximum);
    }
}

From source file:net.sf.maltcms.chromaui.charts.FastHeatMapPlot.java

/**
 *
 * @param xyz/*from   w  w  w .  j a  va 2s  .  c o m*/
 * @param sl
 * @param spm
 * @param xybr
 * @param activeGraphics
 * @param dataArea
 * @param info
 * @param crosshairState
 * @return
 */
public BufferedImage prepareData(final XYZDataset xyz, final int sl, final int spm, final XYBlockRenderer xybr,
        Graphics2D activeGraphics, Rectangle2D dataArea, PlotRenderingInfo info,
        CrosshairState crosshairState) {
    long start = System.currentTimeMillis();
    final PaintScale ps = xybr.getPaintScale();
    double minz = Double.POSITIVE_INFINITY, maxz = Double.NEGATIVE_INFINITY;

    for (int i = 0; i < xyz.getSeriesCount(); i++) {
        final int items = xyz.getItemCount(i);
        for (int j = 0; j < items; j++) {
            minz = Math.min(xyz.getZValue(i, j), minz);
            maxz = Math.max(xyz.getZValue(i, j), maxz);
        }
    }
    if (ps instanceof GradientPaintScale) {
        ((GradientPaintScale) ps).setUpperBound(maxz);
        ((GradientPaintScale) ps).setLowerBound(minz);
    }
    Logger.getLogger(getClass().getName()).log(Level.INFO, "Finding min and max data took{0}ms",
            (System.currentTimeMillis() - start));

    //        VolatileImage bi = null;
    //        if (bi == null) {
    //        if (this.getOrientation() == PlotOrientation.VERTICAL) {
    BufferedImage bi = createCompatibleImage(sl, spm, BufferedImage.TRANSLUCENT);
    //        } else {
    //            bi = createCompatibleImage(spm, sl);
    //        }
    //        }else{
    //            img.validate(g.getDeviceConfiguration())
    //        }

    Graphics2D g2 = (Graphics2D) bi.getGraphics();
    g2.setColor((Color) ps.getPaint(ps.getLowerBound()));
    g2.fillRect(0, 0, sl, spm);
    // System.out.println("Using Threshold: " + threshold);
    int height = bi.getHeight();
    //final WritableRaster wr = bi.getRaster();
    XYItemRendererState xyrs = xybr.initialise(g2, dataArea, this, xyz, info);
    for (int i = 0; i < xyz.getSeriesCount(); i++) {
        final int items = xyz.getItemCount(i);
        for (int j = 0; j < items; j++) {
            final double tmp = xyz.getZValue(i, j);
            if (tmp > this.threshholdCutOff) {
                //if(j%50==0)System.out.println("Value > threshold: "+tmp);
                final Paint p = ps.getPaint(tmp);
                //                    final Paint tp = ps.getPaint(this.threshholdCutOff);
                //                    if (!tp.equals(p)) {
                if (p instanceof Color) {
                    final Color c = (Color) p;
                    g2.setColor(c);
                    //                    xybr.drawItem(g2, xyrs, dataArea, info, this, domainAxis, rangeAxis, xyz, i, j, crosshairState, 0);
                    //                        if (this.getOrientation() == PlotOrientation.VERTICAL) {

                    g2.fillRect((int) xyz.getXValue(i, j), height - (int) xyz.getYValue(i, j), 1, 1);
                    //                            wr.setPixel(, , new int[]{c.getRed(),
                    //                                        c.getGreen(), c.getBlue(), c.getAlpha()});
                    //                        } else {
                    //                            wr.setPixel((int) xyz.getYValue(i, j), (int) xyz.getXValue(i, j), new int[]{c.getRed(),
                    //                                        c.getGreen(), c.getBlue(), c.getAlpha()});
                    //                        }
                    //                }
                    //                    }
                }
            }
        }
    }

    Logger.getLogger(getClass().getName()).log(Level.INFO, "Creating image and drawing items took {0}ms",
            (System.currentTimeMillis() - start));

    return bi;
}