Getting center point of some coordinates?

Hey, I am working on a region system for my own server. I'm not very good with coordinates systems, but I know that some of you are

How would I get the center point of some coordinates or atleast an edge?

Code:

    public synchronized Location regionLocation(Player p) {
        String pn = p.getName();
        ResultSet rs = getRegion(pn);
        Location loc = null;
        int minx = 0;
        int y = 5;
        int minz = 0;
        int maxx = 0;
        int maxz = 0;
        try {
            while (rs.next()) {
                minx = rs.getInt("minx");
                minz = rs.getInt("minz");
                maxx = rs.getInt("maxx");
                maxz = rs.getInt("maxz");
            }
            Location loc = new Location 
        }
    }

I know the code isn't finished, but what I'm trying to find out is how I can get the center point of the region with these coordinates. (If it is possible )

Oh and if you have any good guides/tutorials on Coordinate-systems or something please give me a link

Thanks.

 

How many points are you talking about here? If its just two, find the averages between the x's and the z's.

Code:

midX = (originX + endPointX) / 2;
midY = (originY + endPointY) / 2;

 

Mitizmitiz
There are 4 points:
Minimum X, Minimum Z, Maximum X, Maximum Z.

 

min(x,y)
max(x,y)

Each would be a point.

 

Mitizmitiz
Let's say it's a square.
I made a square with all those points, but now I am trying to find the center point of the square by doing this. I am also trying to find each edge, but I don't know how as I'm not really a math genius.

 

That would be a line. To find the centre of a square/rectangle you will need four points. A very simple method of doing this could be as below.

p1(x,z)
p2(x,z)
p3(x,z)
p4(x,z)

Code:

midX = (p1.getX() + p2.getX()) / 2;
midY = (p1.getZ() + p3.getZ()) / 2;

In the above example, p1 is the top left corner, p2 is the top right, p3 is the bottom left and p4 is the bottom right.

 

Mitizmitiz
Well I made a nice square with minX, minZ, maxX, maxZ. But I want to find the middle of it and each of the edges. Any ideas?

bump

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

(maxX + minX) / 2 would be the center x coord
(maxZ + minZ) / 2 would be the center z coord

the new location would then be:
new Location (((maxX + minX) / 2), y, ((maxZ + minZ) / 2));

which would be in the center of your square

 

stelar7
Thanks, works now

Code:

public synchronized Location regionLocation(Player p) {
        String pn = p.getName();
        ResultSet rs = getRegion(pn);
        int minx = 0;
        int y = 5;
        int minz = 0;
        int maxx = 0;
        int maxz = 0;
        Location loc = null;
        try {
            while (rs.next()) {
                minx = rs.getInt("minx");
                minz = rs.getInt("minz");
                maxx = rs.getInt("maxx");
                maxz = rs.getInt("maxz");
            }
            int centerx = (maxx + minx) / 2;
            int centerz = (maxz + minz) / 2;
            loc = new Location(Bukkit.getWorld("region"), centerx, y, centerz);
            p.teleport(loc);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return loc;
    }

Do you know how I can get every corner as a location?

 

Location loc1 = new Location(maxX, y, maxY);
Location loc2 = new Location(minX, y, maxY);
Location loc3 = new Location(maxX, y, minY);
Location loc4 = new Location(minX, y, minY);

 

Thanks.

 

We need more maths at schools? xD

 

nope, just older devs