kevinsdooapp

/**
 * Exception to be thrown when a bound value isn't supported by the logarithmic axis<br>
 * <br>
 * 
 * @author Kevin Senechal mailto: kevin.senechal@dooapp.com
 * 
 */
public class IllegalLogarithmicRangeException extends Exception {

	/**

kevinsdooapp

import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.List;


import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.beans.binding.DoubleBinding;
import javafx.beans.property.DoubleProperty;

kevinsdooapp

@Override
public Number getValueForDisplay(double displayPosition) {
	double delta = logUpperBound.get() - logLowerBound.get();
	if (getSide().isVertical()) {
		return Math.pow(10, (((displayPosition - getHeight()) / -getHeight()) * delta) + logLowerBound.get());
	} else {
		return Math.pow(10, (((displayPosition / getWidth()) * delta) + logLowerBound.get()));
	}
}

kevinsdooapp

/**
 * The time of animation in ms
 */
private static final double ANIMATION_TIME = 2000;
private final Timeline lowerRangeTimeline = new Timeline();
private final Timeline upperRangeTimeline = new Timeline();

kevinsdooapp

/**
 * {@inheritDoc}
 */
@Override
protected void setRange(Object range, boolean animate) {
	if (range != null) {
		Number lowerBound = ((Number[]) range)[0];
		Number upperBound = ((Number[]) range)[1];
		try {
			validateBounds(lowerBound.doubleValue(), upperBound.doubleValue());

kevinsdooapp

/**
 * {@inheritDoc}
 */
@Override
protected void setRange(Object range, boolean animate) {
	if (range != null) {
		Number lowerBound = ((Number[]) range)[0];
		Number upperBound = ((Number[]) range)[1];
		try {
			validateBounds(lowerBound.doubleValue(), upperBound.doubleValue());

kevinsdooapp

/**
 * {@inheritDoc}
 */
@Override
protected List<Number> calculateTickValues(double length, Object range) {
	List<Number> tickPositions = new ArrayList<Number>();
	if (range != null) {
		Number lowerBound = ((Number[]) range)[0];
		Number upperBound = ((Number[]) range)[1];
		double logLowerBound = Math.log10(lowerBound.doubleValue());

kevinsdooapp

/**
* {@inheritDoc}
*/
@Override
protected List<Number> calculateMinorTickMarks() {
	Number[] range = getRange();
	List<Number> minorTickMarksPositions = new ArrayList<Number>();
	if (range != null) {

		Number upperBound = range[1];

kevinsdooapp

import javafx.scene.chart.ValueAxis;

/**
 * A logarithmic axis implementation for JavaFX 2 charts<br>
 * <br>
 * 
 * @author Kevin Senechal
 * 
 */
public class LogarithmicAxis extends ValueAxis<Number> {

kevinsdooapp

@Override
protected Object getRange() {
	return new Number[] { lowerBoundProperty().get(), upperBoundProperty().get() };
}