I seek the truth about the directions in Minecraft

Hi
Now I want to know. Where is what ?
The Yaw value is between 0 and 360, right ?
Yaw = 0 means ?
I found somewhere that Yaw=0 means that the player is looking in direction Z-, other sources says that it's Z+...
My question is :
- What's the relation between YAW value, Z+/Z-/X+/X- and North/South/East/West ?

Thanks

http://mc.kev009.com/wiki/images/1/1e/Minecraft-trig-yaw.png Yaw value
"Map have east at top" => So East = Z+ ?
Sun, Clouds direction... I'm lost.

 

Clouds always move North, use that and F3 to orient yourself.

 

Thank you, but what about the Yaw value ?
Their should be a relation between the f value in the F3 screen and the yaw value ?

 

I'm pretty sure one of them is the yaw value.

 

Just red the source of CommandBook.

Code:java

 
    public static String getCardinalDirection(Player player) {
        double rot = (player.getLocation().getYaw() - 90) % 360;
        if (rot < 0) {
            rot += 360.0;
        }
        return getDirection(rot);
    }
 
    /**
     * Converts a rotation to a cardinal direction name.
     * 
     * @param rot
     * @return
     */
    private static String getDirection(double rot) {
        if (0 <= rot && rot < 22.5) {
            return "North";
        } else if (22.5 <= rot && rot < 67.5) {
            return "Northeast";
        } else if (67.5 <= rot && rot < 112.5) {
            return "East";
        } else if (112.5 <= rot && rot < 157.5) {
            return "Southeast";
        } else if (157.5 <= rot && rot < 202.5) {
            return "South";
        } else if (202.5 <= rot && rot < 247.5) {
            return "Southwest";
        } else if (247.5 <= rot && rot < 292.5) {
            return "West";
        } else if (292.5 <= rot && rot < 337.5) {
            return "Northwest";
        } else if (337.5 <= rot && rot < 360.0) {
            return "North";
        } else {
            return null;
        }
    }

This answer my question.