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[accoro]

Circles - how do you mine out circular rooms? I am terrible at this, I always end up with diamond shaped rooms. Halps

[Graebeard]

There are a few methods you can use.  This thread has some helpful templates and an auto hot key program I've used a lot.

You can also open up MS Paint, select the oval tool, zoom all the way in, and draw a circle by holding shift while you drag the mouse.  Just fill in corners as needed.

[Calathar]

It might be worth mentioning that with vanilla DF, while not full screened and at the default zoom, the vertical pixel count for each tile doesn't equal the horizontal pixel count.  So if this is the case for you, you won't ever get rooms that appear circular, even if you are digging out the correct tiles. 

[MiniMacker]

Something to take note of is that a square is "technically" round in Dwarf Fortress, since it takes the same amount of time for something to go diagonally as it takes for it to go in any other direction.

Which must mean that circles are squares.

But squares are also circles.

Spoiler (click to show/hide)

[Starver]

If DF squares are more like RL circles, then DF 'circles' are more like diamondesque four-pointed stars IRL.

Don't know if it copies/displays well on everyone's machine/browser, but character 2726 works well as an example (for those that don't want to run their own plotting program or spreadsheet graph of the problem) and follows below:
✦

[Guedez]

If DF squares are more like RL circles, then DF 'circles' are more like diamondesque four-pointed stars IRL.

Don't know if it copies/displays well on everyone's machine/browser, but character 2726 works well as an example (for those that don't want to run their own plotting program or spreadsheet graph of the problem) and follows below:
✦

i give you 10 urists for finding out the existence of this character

[Aoi]

Great. In addition to Dwarfy physics, we've also concluded they use non-Euclidian geometry. When will the madness end?!

[Starver]

Great. In addition to Dwarfy physics, we've also concluded they use non-Euclidian geometry. When will the madness end?!

That could be difficult to answer if there's an infinite area but a finite border or a finite area with an infinite border.  (Or a finite (and toroidal) area with no border, but we aren't playing Asteroids here... )

[Graebeard]

It's things like this why I want the philosopher back so bad.  Imagine if you had this guy running around your fort.

[Urist_McArathos]

It might be worth mentioning that with vanilla DF, while not full screened and at the default zoom, the vertical pixel count for each tile doesn't equal the horizontal pixel count.  So if this is the case for you, you won't ever get rooms that appear circular, even if you are digging out the correct tiles.

The default does come with an alternate tileset that has perfectly square tiles.  You still have to take care to get "circular" rooms, but that will help correct the ridiculous "diamondy" nature of the default set.

[Graebeard]

You know, this used to really bother me.  If I'd known there were square tilesets when I started I probably would have used them.  Now I'm so used to it, though, that square rooms just look wrong.

[Lezard]

Something to take note of is that a square is "technically" round in Dwarf Fortress, since it takes the same amount of time for something to go diagonally as it takes for it to go in any other direction.

Which must mean that circles are squares.

But squares are also circles.

Spoiler (click to show/hide)

I just threw up....

[Jurph]

Something to take note of is that a square is "technically" round in Dwarf Fortress, since it takes the same amount of time for something to go diagonally as it takes for it to go in any other direction.

Which must mean that circles are squares.

But squares are also circles.

Spoiler (click to show/hide)

Wrong -- diagonal movement costs 1.4 squares of movement.  A nice circle of diameter 15 is rows of 5,9,11, two rows of 13, five rows of 15, two 13s, 11, 9, 5.  It's 7 tiles flat-to-flat, and 5*1.4 = 7 tiles diagonally.  I use it for my cylindrical layouts.

[Starver]

Wrong -- diagonal movement costs 1.4 squares of movement.

I've previously quoted that information, but others have said that there's no basis for this, so I don't throw this fact around any more and go with the apparently more provable "Modified Manhattan" distance.  Still, we can deal with it being otherwise.

[BigD145]

Wrong -- diagonal movement costs 1.4 squares of movement.

I've previously quoted that information, but others have said that there's no basis for this, so I don't throw this fact around any more and go with the apparently more provable "Modified Manhattan" distance.  Still, we can deal with it being otherwise.

a squared + b squared = c squared

Basic geometry of a right triangle.