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Thread: Another Method,

  1. #1
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    Default Another Method,

    Well yea. Here's basically whats up,

    Here's the enum:
    public enum Direction {
     
    	EAST, NORTHEAST, NORTH, NORTHWEST, WEST, SOUTHWEST, SOUTH, SOUTHEAST, UNDEFINED;
     
    }

    I need a method to return a "Direction" ^ based on 2 points i.e:



    All are in perspective to "Me"

    Anypoint in the DarkRed box is north,
    Anypoint in the purple box is north-west
    Anypoint in the Orange box is north-east

    etc etc,

    How the method signature would look like:
    	public static Direction getDirection(Point startPoint, Point endPoint)  {
    		String dirs[] = {"EAST", "NORTHEAST", "NORTH", "NORTHWEST", "WEST", "SOUTHWEST", "SOUTH", "SOUTHEAST"};
    		String direction = dirs[ (int) degree % 8];
    		for(Direction dir : Direction.values()) {
    			if(dir.toString().equalsIgnoreCase(direction)) {
    				return dir;
    			}
    		}
    		return Direction.UNDEFINED;
    	}

    Any ideas?
    Last edited by Time; May 15th, 2010 at 12:36 PM.


  2. #2
    Super Moderator helloworld922's Avatar
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    Default Re: Another Method,

    Just get the angle between and do some if-else loops to see which quadrant it's in.

  3. #3
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    Default Re: Another Method,

    Quote Originally Posted by helloworld922 View Post
    Just get the angle between and do some if-else loops to see which quadrant it's in.
    Just make a circle and divide it in 8 parts, so that means that for each position you will have 45. And you will need one more point ( reference ) from which will you calculate the angle, so you can know what quadrant it is.

    A little more info

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: Another Method,

    I don't see a definition for the problem.
    What is the relationship between the line (2 points) passed to the method and what you want returned?

  5. #5
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    Default Re: Another Method,

    Uber bump?

    I solved this issue so long ago.