Example usage for org.jfree.chart.axis Timeline toTimelineValue

Introduction

In this page you can find the example usage for org.jfree.chart.axis Timeline toTimelineValue.

Prototype

long toTimelineValue(Date date);

Source Link

Document

Translates a date into a value on this timeline.

Usage

From source file:figs.treeVisualization.gui.PhyloDateAxis.java

/**
 * Translates the data value to the display coordinates (Java 2D User Space)
 * of the chart.// w ww . ja va 2 s  .  c o m
 *
 * @param value  the date to be plotted.
 * @param area  the rectangle (in Java2D space) where the data is to be 
 *              plotted.
 * @param edge  the axis location.
 *
 * @return The coordinate corresponding to the supplied data value.
 * 
 * Original method is in <code>org.jfree.chart.axis.DateAxis</code>
 */
@Override
public double valueToJava2D(double value, Rectangle2D area, RectangleEdge edge) {

    Timeline timeline = this.getTimeline();
    value = timeline.toTimelineValue((long) value);

    DateRange range = (DateRange) getRange();
    double axisMin = timeline.toTimelineValue(range.getLowerDate());
    double axisMax = timeline.toTimelineValue(range.getUpperDate());
    double result = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        double minX = area.getX();
        double maxX = area.getMaxX();
        if (isInverted()) {
            result = maxX + ((value - axisMin) / (axisMax - axisMin)) * (minX - maxX);
        } else {
            result = minX + ((value - axisMin) / (axisMax - axisMin)) * (maxX - minX);
        }
    } else if (RectangleEdge.isLeftOrRight(edge)) {
        //double minY = area.getMinY();
        //double maxY = area.getMaxY();
        double minY = area.getY();
        double maxY = area.getHeight();
        if (isInverted()) {
            result = minY + (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        } else {
            result = maxY - (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        }
    }
    return result;

}

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