Solved Math adjustment

Recently a fellow forum member helped me in creating a circular shape which looks like this:

However, I'm wanting to remove the four corner blocks, which should make it look like this:

Current math:

Code:

int radius = 3;

   for (double x = -radius; x <= radius; x++) {
        for (double z = -radius; z <= radius; z++) {
            if ((x*x)+(z*z) <= radius*radius) {

Thanks in advanced!

 

@Coopah
Can you make those pictures a lot smaller

EDIT: Mis-interpreted what he wanted --snip

 

Try taking a look at how WorldEdit makes cylinders. https://github.com/sk89q/WorldEdit/...ain/java/com/sk89q/worldedit/EditSession.java

 

If you take off the corners, it'll be a square that is just rotated.

 

@khave Don't know what this has to do with cylinders, it's a flat circle lol.
@teej107 That ain't a square bro... ahhaha

 

@Coopah

It actually is a square if you take out those corners.

 

That's a square bro. Ahahahaha

 

@mcdorli
There are four blocks coming off of the current square which counteracts what your saying.

Also, I'm wanting to remove 4 blocks from the corners. If you think that's a square you're kidding yourself lol.

 

http://pullmonkey.com/wp-content/uploads/2010/11/rotated_square.png

"Rotated Square"

 

Please, rotate your view by 45 degrees lol. Maybe change your perspective and not just laugh at somebody, who can do that.

 

@DoggyCode @mcdorli

Looks like a fking square to you two? Apologies for drawing but that explains the basic shape. I'm wanting to cut off the corners.

 

You realise that you're proving yourself incorrect and trying to make fun of the people that you want to help you. Do you want me to draw the square they're talking about and you can see why you're wrong?


Edit:

What you have.


What you want


Rotated and shrunk

 

*insert facepalm meme here* That's a f****ng square, 3 people say the same. Just connect the corners please.

 

@Coopah Look, I drew the lines to help you, I missed the circle slightly but you get the idea, or at least I hope you understand now.

Edit: replied to the wrong name :I

A circle is a cylinder with the same x and z radius...

 

@Coopah you basically want it look like the water in minecraft, aren't you?

This is spoonfeeding, but I really want to end this thread. Instead of doing "x*x + y*y <= r * r", do "x + y <= radius", where x and y are the distance from the middle block. You don't need to change anything, except the if statement.

 

@Coopah

As has been clearly shown many times so far, my original code that you used produces a mathematically accurate circle.
It may not look like a circle, but that's because it's small, and is produced by cubes

If you change it, it is no longer a circle.. in this case you are making a square

 

My apologies, I can see the square.

This code:

Code:

if (x + z <= radius) {

Will only produce this shape?

 

Sorry, you need to do Math.abs(x) + Math.abs(z) <= radius. My bad.
@Coopah

 

A cylinder is a cirlce if you don't change the y axis. WE already has this made in the link I gave you.

 

And there is no such thing as a "flat circle", a cicle is always flat, a circle in 3d is a sphere, but this has been said before.

 

@khave

Because depending on WorldEdit for something that can be done in 5 lines of code is excellent design.

 

@mythbusterma You forgot to put too laughing smilies and a lol message at the end, so dumb people understand the irony too.

This is basic geometry math, you need to learn math for programming

 

@mcdorli

The thing is, this is all spawned from the original code I gave him on another thread to create the circles.
Seems like he wants squares now

 

if that ain't a square then please tell me what it is. It has 4 right angles and 4 sides that are equal in length.