Examples of org.jfree.chart.axis.ValueAxis

org.jfree.chart.axis.ValueAxis
The base class for axes that display value data, where values are measured using the double primitive. The two key subclasses are {@link DateAxis} and {@link NumberAxis}.

    public void zoomRangeAxes(double factor, PlotRenderingInfo info,
                              Point2D source, boolean useAnchor) {


        // perform the zoom on each range axis
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis rangeAxis = (ValueAxis) this.rangeAxes.get(i);
            if (rangeAxis != null) {
                if (useAnchor) {
                    // get the relevant source coordinate given the plot
                    // orientation
                    double sourceY = source.getY();
                    if (this.orientation == PlotOrientation.HORIZONTAL) {
                        sourceY = source.getX();
                    }
                    double anchorY = rangeAxis.java2DToValue(sourceY,
                            info.getDataArea(), getRangeAxisEdge());
                    rangeAxis.resizeRange2(factor, anchorY);
                }
                else {
                    rangeAxis.resizeRange(factor);
                }
            }
        }
    }

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     * @param source  the source point (in Java2D space) for the zoom.
     */
    public void zoomRangeAxes(double lowerPercent, double upperPercent,
                              PlotRenderingInfo state, Point2D source) {
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis rangeAxis = (ValueAxis) this.rangeAxes.get(i);
            if (rangeAxis != null) {
                rangeAxis.zoomRange(lowerPercent, upperPercent);
            }
        }
    }

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        clone.domainAxisLocations
                = (ObjectList) this.domainAxisLocations.clone();


        clone.rangeAxes = new ObjectList();
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis yAxis = (ValueAxis) this.rangeAxes.get(i);
            if (yAxis != null) {
                ValueAxis clonedAxis = (ValueAxis) yAxis.clone();
                clone.setRangeAxis(i, clonedAxis);
            }
        }
        clone.rangeAxisLocations = (ObjectList) this.rangeAxisLocations.clone();

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                xAxis.setPlot(this);
                xAxis.addChangeListener(this);
            }
        }
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis yAxis = (ValueAxis) this.rangeAxes.get(i);
            if (yAxis != null) {
                yAxis.setPlot(this);
                yAxis.addChangeListener(this);
            }
        }
        int datasetCount = this.datasets.size();
        for (int i = 0; i < datasetCount; i++) {
            Dataset dataset = (Dataset) this.datasets.get(i);

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     * @see #setAxis(int, ValueAxis)
     * 
     * @since 1.0.14
     */
    public ValueAxis getAxis(int index) {
        ValueAxis result = null;
        if (index < this.axes.size()) {
            result = (ValueAxis) this.axes.get(index);
        }
        return result;
    }

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     * @see #getAxis(int)
     *
     * @since 1.0.14
     */
    public void setAxis(int index, ValueAxis axis, boolean notify) {
        ValueAxis existing = getAxis(index);
        if (existing != null) {
            existing.removeChangeListener(this);
        }
        if (axis != null) {
            axis.setPlot(this);
        }
        this.axes.set(index, axis);

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     * @return The axis.
     *
     * @since 1.0.14
     */
    public ValueAxis getAxisForDataset(int index) {
        ValueAxis valueAxis = null;
        List axisIndices = (List) this.datasetToAxesMap.get(
                new Integer(index));
        if (axisIndices != null) {
            // the first axis in the list is used for data <--> Java2D
            Integer axisIndex = (Integer) axisIndices.get(0);

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        // draw the plot background and axes...
        drawBackground(g2, dataArea);
        int axisCount = this.axes.size();
        AxisState state = null;
        for (int i = 0; i < axisCount; i++) {
            ValueAxis axis = getAxis(i);
            if (axis != null) {
                PolarAxisLocation location
                        = (PolarAxisLocation) this.axisLocations.get(i);
                AxisState s = this.drawAxis(axis, location, g2, dataArea);
                if (i == 0) {

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     *
     * @param percent  the amount of the zoom.
     */
    public void zoom(double percent) {
        for (int axisIdx = 0; axisIdx < getAxisCount(); axisIdx++) {
            final ValueAxis axis = getAxis(axisIdx);
            if (axis != null) {
                if (percent > 0.0) {
                    double radius = axis.getUpperBound();
                    double scaledRadius = radius * percent;
                    axis.setUpperBound(scaledRadius);
                    axis.setAutoRange(false);
                }
                else {
                    axis.setAutoRange(true);
                }
            }
        }
    }

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     *
     * @param event  information about the event (not used here).
     */
    public void datasetChanged(DatasetChangeEvent event) {
        for (int i = 0; i < this.axes.size(); i++) {
            final ValueAxis axis = (ValueAxis) this.axes.get(i);
            if (axis != null) {
                axis.configure();
            }
        }
        if (getParent() != null) {
            getParent().datasetChanged(event);
        }

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