/**
*
*/
package org.mips.Sirius.ui;
import android.graphics.Color;
/**
* @author mips
*
* This class provides a fixed set of colours which can be used to
* colour a fixed set of items. These colours are as different as
* possible.
*/
public class Colouring {
/*
* Retrieves the colour in hex-HTML notation (no #). Numbering starts from
* 0.
*/
public static int getColour(int number, int divisions) {
// check for valid input
if ((number + 1 > divisions) || (divisions < 1))
return 0;
// uses the HSV colour space to evenly distribute the colours
float[] hsv = new float[3];
hsv[0] = (360 / divisions) * number;
hsv[1] = .7f;
hsv[2] = 1;
int colour = Color.HSVToColor(hsv);
return colour;
}
public static String getHTMLColour(int colour) {
return Integer.toHexString(colour).substring(2).toUpperCase();
}
}
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