package org.jzy3d.plot3d.primitives.axes.layout.providers;


/**
 * A tick provider for musical notation.
 * 
 * Select frequency values for all A notes between A0 and A7 
 * (approximately a piano range)
 * 
 * @author Martin Pernollet
 */
public class PitchTickProvider extends StaticTickProvider {
    public PitchTickProvider() {
        super(pitchValues(8));
    }
    
    public PitchTickProvider(int octaves) {
        super(pitchValues(octaves));
    }

    private static double[] pitchValues(int octaves) {
        if (octaves == 2) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0};
            return array;
        }
        else if (octaves == 3) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0};
            return array;
        }
        else if (octaves == 4) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0,
            /* A3 */220.0};
            return array;
        }
        else if (octaves == 5) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0,
            /* A3 */220.0,
            /* A4 */440.0 };
            return array;
        }
        else if (octaves == 6) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0,
            /* A3 */220.0,
            /* A4 */440.0,
            /* A5 */880.0 };
            return array;
        }
        else if (octaves == 7) {
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0,
            /* A3 */220.0,
            /* A4 */440.0,
            /* A5 */880.0,
            /* A6 */1760.0 };
            return array;
        }
        else { // 8
            double[] array = { 0.0,
            /* A0 */27.5,
            /* A1 */55.0,
            /* A2 */110.0,
            /* A3 */220.0,
            /* A4 */440.0,
            /* A5 */880.0,
            /* A6 */1760.0,
            /* A7 */3520.0 };
            return array;
        }
    }

}