Example usage for org.jfree.chart.axis ValueAxis resizeRange

Introduction

In this page you can find the example usage for org.jfree.chart.axis ValueAxis resizeRange.

Prototype

public void resizeRange(double percent, double anchorValue) 

Source Link

Document

Increases or decreases the axis range by the specified percentage about the specified anchor value and sends an AxisChangeEvent to all registered listeners.

Usage

From source file:de.unibayreuth.bayeos.goat.panels.timeseries.JPanelChart.java

/**
 * Decreases the range on the horizontal axis, centered about a Java2D x coordinate.
 * <P>//  w  w  w . ja v  a 2  s  .  co m
 * The range on the x axis is multiplied by zoomFactor
 * 
 * @param x  the x coordinate in Java2D space.
 * @param zoomFactor  the zoomFactor < 1 == zoom in; else out.
 */
private void zoomHorizontal(double x, double zoomFactor) {

    JFreeChart chart = this.chartPanel.getChart();
    ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();
    if (chart.getPlot() instanceof XYPlot) {
        XYPlot hvp = (XYPlot) chart.getPlot();
        ValueAxis axis = hvp.getDomainAxis();
        if (axis != null) {
            double anchorValue = axis.java2DToValue((float) x, info.getPlotInfo().getDataArea(),
                    hvp.getDomainAxisEdge());
            if (zoomFactor < 1.0) {
                axis.resizeRange(zoomFactor, anchorValue);
            } else if (zoomFactor > 1.0) {
                Range range = hvp.getDataRange(axis);
                adjustRange(axis, range, zoomFactor, anchorValue);
            }
        }
    }
}

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From source file:de.unibayreuth.bayeos.goat.panels.timeseries.JPanelChart.java

/**
 * Decreases the range on the vertical axis, centered about a Java2D y coordinate.
 * <P>//from   w  w w  .j  a v  a  2s  .  c  o  m
 * The range on the y axis is multiplied by zoomFactor
 * 
 * @param y  the y coordinate in Java2D space.
 * @param zoomFactor  the zoomFactor < 1 == zoom in; else out.
 */
private void zoomVertical(double y, double zoomFactor) {

    JFreeChart chart = this.chartPanel.getChart();
    ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();

    if (chart.getPlot() instanceof XYPlot) {
        XYPlot vvp = (XYPlot) chart.getPlot();
        ValueAxis primYAxis = vvp.getRangeAxis();
        if (primYAxis != null) {
            double anchorValue = primYAxis.java2DToValue((float) y, info.getPlotInfo().getDataArea(),
                    vvp.getRangeAxisEdge());
            if (zoomFactor < 1.0) {
                // zoom in
                primYAxis.resizeRange(zoomFactor, anchorValue);

            } else if (zoomFactor > 1.0) {
                // zoom out
                Range range = new Range(yMin, yMax);
                adjustRange(primYAxis, range, zoomFactor, anchorValue);
            }
        }

    }
}

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From source file:apidemo.PanScrollZoomDemo.java

/**
 * Decreases the range on the horizontal axis, centered about a Java2D x coordinate.
 * <P>/* ww  w . ja v a 2 s.c  o  m*/
 * The range on the x axis is multiplied by zoomFactor
 * 
 * @param x  the x coordinate in Java2D space.
 * @param zoomFactor  the zoomFactor < 1 == zoom in; else out.
 */
private void zoomHorizontal(final double x, final double zoomFactor) {

    final JFreeChart chart = this.chartPanel.getChart();
    final ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();
    if (chart.getPlot() instanceof XYPlot) {
        final XYPlot hvp = (XYPlot) chart.getPlot();
        final ValueAxis axis = hvp.getDomainAxis();
        if (axis != null) {
            final double anchorValue = axis.java2DToValue((float) x, info.getPlotInfo().getDataArea(),
                    hvp.getDomainAxisEdge());
            if (zoomFactor < 1.0) {
                axis.resizeRange(zoomFactor, anchorValue);
            } else if (zoomFactor > 1.0) {
                final Range range = hvp.getDataRange(axis);
                adjustRange(axis, range, zoomFactor, anchorValue);
            }
        }
    }
}

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From source file:apidemo.PanScrollZoomDemo.java

/**
 * Decreases the range on the vertical axis, centered about a Java2D y coordinate.
 * <P>/*from   w  w w  . j  a v  a 2  s .c o m*/
 * The range on the y axis is multiplied by zoomFactor
 * 
 * @param y  the y coordinate in Java2D space.
 * @param zoomFactor  the zoomFactor < 1 == zoom in; else out.
 */
private void zoomVertical(final double y, final double zoomFactor) {

    final JFreeChart chart = this.chartPanel.getChart();
    final ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();

    // 1. (left) Y-Axis

    if (chart.getPlot() instanceof XYPlot) {
        final XYPlot vvp = (XYPlot) chart.getPlot();
        final ValueAxis primYAxis = vvp.getRangeAxis();
        if (primYAxis != null) {
            final double anchorValue = primYAxis.java2DToValue((float) y, info.getPlotInfo().getDataArea(),
                    vvp.getRangeAxisEdge());
            if (zoomFactor < 1.0) {
                // zoom in
                primYAxis.resizeRange(zoomFactor, anchorValue);

            } else if (zoomFactor > 1.0) {
                // zoom out
                final Range range = new Range(this.primYMinMax[0], this.primYMinMax[1]);
                adjustRange(primYAxis, range, zoomFactor, anchorValue);
            }
        }

        // 2. (right) Y-Axis

        if (chart.getPlot() instanceof XYPlot) {
            final XYPlot xyp = (XYPlot) chart.getPlot();
            final ValueAxis secYAxis = xyp.getRangeAxis(1);
            if (secYAxis != null) {
                final double anchorValue = secYAxis.java2DToValue((float) y, info.getPlotInfo().getDataArea(),
                        xyp.getRangeAxisEdge(1));
                if (zoomFactor < 1.0) {
                    // zoom in
                    secYAxis.resizeRange(zoomFactor, anchorValue);

                } else if (zoomFactor > 1.0) {
                    // zoom out
                    final Range range = new Range(this.secondYMinMax[0], this.secondYMinMax[1]);
                    adjustRange(secYAxis, range, zoomFactor, anchorValue);
                }
            }
        }
    }
}

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