Examples with ChartRenderingInfo org.jfree.chart.ChartRenderingInfo used on opensource projects

Example 21 with ChartRenderingInfo

use of org.jfree.chart.ChartRenderingInfo in project jfreechart-fx by jfree.

the class TooltipHandlerFX method getTooltipText.

/**
 * Returns the tooltip text.
 *
 * @param canvas  the canvas that is displaying the chart.
 * @param x  the x-coordinate of the mouse pointer.
 * @param y  the y-coordinate of the mouse pointer.
 *
 * @return String The tooltip text (possibly {@code null}).
 */
private String getTooltipText(ChartCanvas canvas, double x, double y) {
    ChartRenderingInfo info = canvas.getRenderingInfo();
    if (info == null) {
        return null;
    }
    EntityCollection entities = info.getEntityCollection();
    if (entities == null) {
        return null;
    }
    ChartEntity entity = entities.getEntity(x, y);
    if (entity == null) {
        return null;
    }
    return entity.getToolTipText();
}

Example 22 with ChartRenderingInfo

use of org.jfree.chart.ChartRenderingInfo in project jfreechart-fx by jfree.

the class ChartCanvas method draw.

/**
 * Draws the content of the canvas and updates the
 * {@code renderingInfo} attribute with the latest rendering
 * information.
 */
public final void draw() {
    GraphicsContext ctx = getGraphicsContext2D();
    ctx.save();
    double width = getWidth();
    double height = getHeight();
    if (width > 0 && height > 0) {
        ctx.clearRect(0, 0, width, height);
        this.info = new ChartRenderingInfo();
        if (this.chart != null) {
            this.chart.draw(this.g2, new Rectangle((int) width, (int) height), this.anchor, this.info);
        }
    }
    ctx.restore();
    for (OverlayFX overlay : this.overlays) {
        overlay.paintOverlay(g2, this);
    }
    this.anchor = null;
}

Example 23 with ChartRenderingInfo

use of org.jfree.chart.ChartRenderingInfo in project hudson-2.x by hudson.

the class Graph method doMap.

/**
 * Renders a clickable map.
 */
public void doMap(StaplerRequest req, StaplerResponse rsp) throws IOException {
    if (req.checkIfModified(timestamp, rsp))
        return;
    String w = req.getParameter("width");
    if (w == null)
        w = String.valueOf(defaultW);
    String h = req.getParameter("height");
    if (h == null)
        h = String.valueOf(defaultH);
    ChartRenderingInfo info = new ChartRenderingInfo();
    render(req, info);
    rsp.setContentType("text/plain;charset=UTF-8");
    rsp.getWriter().println(ChartUtilities.getImageMap("map", info));
}

Example 24 with ChartRenderingInfo

use of org.jfree.chart.ChartRenderingInfo in project SIMVA-SoS by SESoS.

the class ValueAxisTest method test3555275.

/**
 * A test for bug 3555275 (where the fixed axis space is calculated
 * incorrectly).
 */
@Test
public void test3555275() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    JFreeChart chart = ChartFactory.createLineChart("Title", "X", "Y", dataset, PlotOrientation.VERTICAL, true, false, false);
    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.setInsets(RectangleInsets.ZERO_INSETS);
    plot.setAxisOffset(RectangleInsets.ZERO_INSETS);
    ValueAxis yAxis = plot.getRangeAxis();
    yAxis.setFixedDimension(100.0);
    BufferedImage image = new BufferedImage(500, 300, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    ChartRenderingInfo info = new ChartRenderingInfo();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 500, 300), info);
    g2.dispose();
    Rectangle2D rect = info.getPlotInfo().getDataArea();
    double x = rect.getMinX();
    assertEquals(100.0, x, 1.0);
}

Example 25 with ChartRenderingInfo

use of org.jfree.chart.ChartRenderingInfo in project SIMVA-SoS by SESoS.

the class MultiplePiePlot method draw.

/**
 * Draws the plot on a Java 2D graphics device (such as the screen or a
 * printer).
 *
 * @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.
 */
@Override
public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor, PlotState parentState, PlotRenderingInfo info) {
    // adjust the drawing area for the plot insets (if any)...
    RectangleInsets insets = getInsets();
    insets.trim(area);
    drawBackground(g2, area);
    drawOutline(g2, area);
    // check that there is some data to display...
    if (DatasetUtilities.isEmptyOrNull(this.dataset)) {
        drawNoDataMessage(g2, area);
        return;
    }
    int pieCount;
    if (this.dataExtractOrder == TableOrder.BY_ROW) {
        pieCount = this.dataset.getRowCount();
    } else {
        pieCount = this.dataset.getColumnCount();
    }
    // the columns variable is always >= rows
    int displayCols = (int) Math.ceil(Math.sqrt(pieCount));
    int displayRows = (int) Math.ceil((double) pieCount / (double) displayCols);
    // swap rows and columns to match plotArea shape
    if (displayCols > displayRows && area.getWidth() < area.getHeight()) {
        int temp = displayCols;
        displayCols = displayRows;
        displayRows = temp;
    }
    prefetchSectionPaints();
    int x = (int) area.getX();
    int y = (int) area.getY();
    int width = ((int) area.getWidth()) / displayCols;
    int height = ((int) area.getHeight()) / displayRows;
    int row = 0;
    int column = 0;
    int diff = (displayRows * displayCols) - pieCount;
    int xoffset = 0;
    Rectangle rect = new Rectangle();
    for (int pieIndex = 0; pieIndex < pieCount; pieIndex++) {
        rect.setBounds(x + xoffset + (width * column), y + (height * row), width, height);
        String title;
        if (this.dataExtractOrder == TableOrder.BY_ROW) {
            title = this.dataset.getRowKey(pieIndex).toString();
        } else {
            title = this.dataset.getColumnKey(pieIndex).toString();
        }
        this.pieChart.setTitle(title);
        PieDataset piedataset;
        PieDataset dd = new CategoryToPieDataset(this.dataset, this.dataExtractOrder, pieIndex);
        if (this.limit > 0.0) {
            piedataset = DatasetUtilities.createConsolidatedPieDataset(dd, this.aggregatedItemsKey, this.limit);
        } else {
            piedataset = dd;
        }
        PiePlot piePlot = (PiePlot) this.pieChart.getPlot();
        piePlot.setDataset(piedataset);
        piePlot.setPieIndex(pieIndex);
        // update the section colors to match the global colors...
        for (int i = 0; i < piedataset.getItemCount(); i++) {
            Comparable key = piedataset.getKey(i);
            Paint p;
            if (key.equals(this.aggregatedItemsKey)) {
                p = this.aggregatedItemsPaint;
            } else {
                p = (Paint) this.sectionPaints.get(key);
            }
            piePlot.setSectionPaint(key, p);
        }
        ChartRenderingInfo subinfo = null;
        if (info != null) {
            subinfo = new ChartRenderingInfo();
        }
        this.pieChart.draw(g2, rect, subinfo);
        if (info != null) {
            assert subinfo != null;
            info.getOwner().getEntityCollection().addAll(subinfo.getEntityCollection());
            info.addSubplotInfo(subinfo.getPlotInfo());
        }
        ++column;
        if (column == displayCols) {
            column = 0;
            ++row;
            if (row == displayRows - 1 && diff != 0) {
                xoffset = (diff * width) / 2;
            }
        }
    }
}