Aufgabe

Nehmen Sie bei einer nicht leeren Zeichenfolge aus ASCII-Kleinbuchstaben a- zdas erste Zeichen und:

• Umgeben Sie es mit einem Quadrat von Kopien des zweiten Zeichens,
• Umgeben Sie das mit einem Diamanten von Kopien des dritten Zeichens,
• Umgeben Sie das mit einem Quadrat mit Kopien des vierten Zeichens…

… Abwechselnd quadratische und rautenförmige Ränder bis zum Ende der Saite. Leerzeichen zwischen den Rändern sollten durch ASCII-Leerzeichen ( ) dargestellt werden.

Zeichnen Sie zum Hinzufügen eines quadratischen Rahmens ein Quadrat genau um das gesamte aktuelle "Arbeitsarray":

                                               sssssssssss
                                t              s    t    s
                               t t             s   t t   s
                              t   t            s  t   t  s
                             t aaa t           s t aaa t s
                            t  aca  t    =>    st  aca  ts
                             t aaa t           s t aaa t s
                              t   t            s  t   t  s
                               t t             s   t t   s
                                t              s    t    s
                                               sssssssssss

Um einen Diamantrand hinzuzufügen , zeichnen Sie eine zentrierte Diamantform, die das äußerste Quadrat diagonal , aber nicht orthogonal berührt :

                                                     s            
                                                    s s           
                                                   s   s          
                                                  s     s         
                                                 s       s        
                                                s         s       
                                               s           s      
                    wwwwwwwwwww               s wwwwwwwwwww s     
                    w    o    w              s  w    o    w  s    
                    w   o o   w             s   w   o o   w   s   
                    w  o   o  w            s    w  o   o  w    s  
                    w o eee o w           s     w o eee o w     s 
                    wo  eme  ow    =>    s      wo  eme  ow      s
                    w o eee o w           s     w o eee o w     s 
                    w  o   o  w            s    w  o   o  w    s  
                    w   o o   w             s   w   o o   w   s   
                    w    o    w              s  w    o    w  s    
                    wwwwwwwwwww               s wwwwwwwwwww s     
                                               s           s      
                                                s         s       
                                                 s       s        
                                                  s     s         
                                                   s   s          
                                                    s s           
                                                     s            

Ihr Programm muss das endgültige Array ausgeben.

• Jede Zeile darf beliebig viele nachgestellte Leerzeichen enthalten.
• Sie können eine Liste von Zeichenfolgen ausgeben, die Zeilen darstellen, oder eine einzelne durch Zeilenumbrüche getrennte Zeichenfolge mit einer optionalen nachgestellten Zeile.
• Führende / nachfolgende Leerzeilen sind nicht zulässig.
• Führende Spalten mit Leerzeichen sind ebenfalls nicht zulässig.

Das ist Code-Golf . Der kürzeste Code in Bytes gewinnt.

Testfälle

Die obigen Beispiele sind erwartete Ausgänge für cat, cats, meow, und meows, um beim Lesen. Einige andere Fälle, die es wert sind, behandelt zu werden:

• Für die Eingabe asollte Ihr Programm Folgendes ausgeben:

  a
  

• Für die Eingabe absollte Ihr Programm Folgendes ausgeben:

  bbb
  bab
  bbb
  

• Für die Eingabe codegolfsollte Ihr Programm Folgendes ausgeben:

  fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
  f                            l                            f
  f                           l l                           f
  f                          l   l                          f
  f                         l     l                         f
  f                        l       l                        f
  f                       l         l                       f
  f                      l           l                      f
  f                     l             l                     f
  f                    l               l                    f
  f                   l                 l                   f
  f                  l                   l                  f
  f                 l                     l                 f
  f                l                       l                f
  f               l                         l               f
  f              l                           l              f
  f             l ooooooooooooooooooooooooooo l             f
  f            l  o            g            o  l            f
  f           l   o           g g           o   l           f
  f          l    o          g   g          o    l          f
  f         l     o         g     g         o     l         f
  f        l      o        g       g        o      l        f
  f       l       o       g         g       o       l       f
  f      l        o      g           g      o        l      f
  f     l         o     g eeeeeeeeeee g     o         l     f
  f    l          o    g  e    d    e  g    o          l    f
  f   l           o   g   e   d d   e   g   o           l   f
  f  l            o  g    e  d   d  e    g  o            l  f
  f l             o g     e d ooo d e     g o             l f
  fl              og      ed  oco  de      go              lf
  f l             o g     e d ooo d e     g o             l f
  f  l            o  g    e  d   d  e    g  o            l  f
  f   l           o   g   e   d d   e   g   o           l   f
  f    l          o    g  e    d    e  g    o          l    f
  f     l         o     g eeeeeeeeeee g     o         l     f
  f      l        o      g           g      o        l      f
  f       l       o       g         g       o       l       f
  f        l      o        g       g        o      l        f
  f         l     o         g     g         o     l         f
  f          l    o          g   g          o    l          f
  f           l   o           g g           o   l           f
  f            l  o            g            o  l            f
  f             l ooooooooooooooooooooooooooo l             f
  f              l                           l              f
  f               l                         l               f
  f                l                       l                f
  f                 l                     l                 f
  f                  l                   l                  f
  f                   l                 l                   f
  f                    l               l                    f
  f                     l             l                     f
  f                      l           l                      f
  f                       l         l                       f
  f                        l       l                        f
  f                         l     l                         f
  f                          l   l                          f
  f                           l l                           f
  f                            l                            f
  fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
  

Referenzimplementierung

Ich habe Julia-Code geschrieben, mit dem die Ausgabe Ihres Programms übereinstimmen sollte (zumindest visuell). Probieren Sie es online!

MATL, 63 54 Bytes

l&)"X@o?TT@I$Ya}t&n2/Xkw2+-|thYa9Mqt_w&:|&+tleXM=@*+]c

Probieren Sie es online!

Erläuterung

            % Implicitly grab the input as a string
l&)         % Separate the first letter from the rest and push them onto the stack
"           % For every letter in the string besides the first
  X@o?      % If this is an odd iteration through the loop
    TT      % Push the array [1, 1]
    @       % Get current character
    I$Ya    % Pad the matrix with 1 copy of this character on all sides
  }         % Else (this is a diamond)
    t       % Duplicate the matrix
    &n      % Determine the number of rows and columns (push separately to stack)
    2/Xk    % Compute the radius (half the # of columns rounded up)
    w2+     % Flip the stack to get the # of rows and add 2. This is the new radius.
    -|      % Subtract the new and old radii and take the absolute value
    thYa    % Apply the necessary number of padding zeros to the matrix
    9Mqt_w&:% Generate the array [-radius ... 0 ... radius]
    |&+     % Take the absolute value and compute the element-wise sum with itself
            % and automatically broadcast to a matrix. For a radius of 5 this yields
            % the following:
            %
            %   8   7   6   5   4   5   6   7   8
            %   7   6   5   4   3   4   5   6   7
            %   6   5   4   3   2   3   4   5   6
            %   5   4   3   2   1   2   3   4   5
            %   4   3   2   1   0   1   2   3   4
            %   5   4   3   2   1   2   3   4   5
            %   6   5   4   3   2   3   4   5   6
            %   7   6   5   4   3   4   5   6   7
            %   8   7   6   5   4   5   6   7   8
            % 
    tleXM   % Duplicate and compute the mode of this matrix (4 in the example above)
    =@*     % Find the locations where the matrix is equal to the mode and
            % replace with the current character. Set all else to 0.
    +       % Add this to the padded version of the previous iteration. 
 ]          % End of if...else
 c          % Cast the current matrix as a character array (zeros are spaces)
            % Implicit end of for loop and implicit display 

JavaScript (ES6), 294 288 287 284 256 246 240 238 220 Byte

Mein erstes Golf auf dieser Seite. Eingabezeichenfolge an Funktion übergeben f, zf('codegolf')

f=s=>{N=n=>(2<<n/2+.5)-3-n%2
D=N(l=s.length)
for(a=[],i=S=D*2+1;i--;)a[i]=a[S+~i]=Array(S).fill` `
for(;l--;)for(o=n=N(l+1),I=0;I<=n;I++,o-=~l&1)a[y=D+I][x=D+o]=a[x][y]=a[y][D-o]=a[x][D-I]=s[l]
return a.map(r=>r.join``)}

-6 Bytes dank @Sunny Pun: Entferne Klammern beim Übergeben von Template-Strings.

-18 Bytes pro Vorschläge von @Sunny Pun, @ edc65: Entfernen prompt()und console.log()zugunsten des Funktionsformats nicht .join()endgültiges Array von Zeichenfolgen

Haskell, 138 137 136 Bytes

q 1=0
q x=(mod x 2+1)*(q(x-1)+1)
f x|m<-q$length x,n<-abs<$>[-m..m]=[do j<-n;max" "[c|(k,c)<-zip[1..]x,cycle[max i j,i+j]!!k==q k]|i<-n]

Definiert eine Funktion, fdie das Ergebnis als Zeilenliste zurückgibt

-1 Byte dank @Lynn

C ++ - 373 366 362 359 Bytes

-1 von @TuukkaX, -6 von @Kevin Cruijssen, -4 von Importen, -3 von @Baum mit Augen

#import<string>
#import<vector>
#define A(x) abs(x-r)
using S=std::string;using V=std::vector<S>;int R(int n){return n?(n%2)?R(n-1)+1:2*R(n-1)+2:0;}V f(S w){int l=w.size(),r=R(l-1),s=r*2+1,i,j,k;V x(s);for(i=0;i<s;++i){x[i]=S(s,46);for(j=0;j<s;++j)for(k=0;k<l;++k){if(A(i)<=R(k)&A(j)<=R(k)&k%2?A(i)==R(k)|A(j)==R(k):(A(i)+A(j)==R(k)))x[i][j]=w[k];}}return x;}

http://ideone.com/5y54mx

Hinweis: Bei dieser Lösung wird der Punkt ('.') Als "Leerzeichen" verwendet, um die Leerzeichen besser sichtbar zu machen. Um ein Leerzeichen zu verwenden , stattdessen muss man Änderung S(s,46)zu S(s,32). Die Punktzahl bleibt gleich.

Ungolfed:

#import<string>
#import<vector>

#define A(x) abs(x-r) //r will be the center coordinate

using S=std::string;
using V=std::vector<S>;

int R(int n){ //recursive function returning the radius of a square/diamond
    return n?  //if(n!=0)
        (n%2)? //if(n%2 != 0)
            R(n-1)+1 //square -> just increase radius by 1
        :
            2*R(n-1)+2 //diamond -> radius doubles + 2
    :
        0 //n==0 -> end of recursion
    ;
}

V f(S w){ //function taking a string and returning a vector<string>
    int l=w.size(),r=R(l-1),s=r*2+1,i,j,k;  //r is radius (==center coord), s is size
    V x(s);  //vector<string>
    for(i=0;i<s;++i){  //loop over vector
        x[i]=S(s,46); //initialize string with dots. use 32 for spaces
        for(j=0;j<s;++j)
            for(k=0;k<l;++k){ //loop over word
                if(
                    A(i)<=R(k) //check bounds
                    &
                    A(j)<=R(k)
                    &
                    k%2?A(i)==R(k)|A(j)==R(k):(A(i)+A(j)==R(k))
                    //for square: check if distance to center of one coordinate = R
                    //for diamond: check if sum of distances = R
                )
                    x[i][j]=w[k]; //if any is true, replace default char
            }
    }

    return x;
}

Online ungolfed versuchen

Wie benutzt man:

include<iostream>

void printSquare(std::string word){
    auto result = f(word);
    for(auto& s:result)
        std::cout << s << std::endl;
    std::cout << std::endl << std::endl;
}

int main() {
    printSquare("a");
    printSquare("ab");
    printSquare("cat");
    printSquare("cats");
    printSquare("meow");
    printSquare("meows");
    printSquare("codegolf");
    return 0;
}

Ausgabe:

a


bbb
bab
bbb


....t....
...t.t...
..t...t..
.t.aaa.t.
t..aca..t
.t.aaa.t.
..t...t..
...t.t...
....t....


sssssssssss
s....t....s
s...t.t...s
s..t...t..s
s.t.aaa.t.s
st..aca..ts
s.t.aaa.t.s
s..t...t..s
s...t.t...s
s....t....s
sssssssssss


wwwwwwwwwww
w....o....w
w...o.o...w
w..o...o..w
w.o.eee.o.w
wo..eme..ow
w.o.eee.o.w
w..o...o..w
w...o.o...w
w....o....w
wwwwwwwwwww


............s............
...........s.s...........
..........s...s..........
.........s.....s.........
........s.......s........
.......s.........s.......
......s...........s......
.....s.wwwwwwwwwww.s.....
....s..w....o....w..s....
...s...w...o.o...w...s...
..s....w..o...o..w....s..
.s.....w.o.eee.o.w.....s.
s......wo..eme..ow......s
.s.....w.o.eee.o.w.....s.
..s....w..o...o..w....s..
...s...w...o.o...w...s...
....s..w....o....w..s....
.....s.wwwwwwwwwww.s.....
......s...........s......
.......s.........s.......
........s.......s........
.........s.....s.........
..........s...s..........
...........s.s...........
............s............


fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
f............................l............................f
f...........................l.l...........................f
f..........................l...l..........................f
f.........................l.....l.........................f
f........................l.......l........................f
f.......................l.........l.......................f
f......................l...........l......................f
f.....................l.............l.....................f
f....................l...............l....................f
f...................l.................l...................f
f..................l...................l..................f
f.................l.....................l.................f
f................l.......................l................f
f...............l.........................l...............f
f..............l...........................l..............f
f.............l.ooooooooooooooooooooooooooo.l.............f
f............l..o............g............o..l............f
f...........l...o...........g.g...........o...l...........f
f..........l....o..........g...g..........o....l..........f
f.........l.....o.........g.....g.........o.....l.........f
f........l......o........g.......g........o......l........f
f.......l.......o.......g.........g.......o.......l.......f
f......l........o......g...........g......o........l......f
f.....l.........o.....g.eeeeeeeeeee.g.....o.........l.....f
f....l..........o....g..e....d....e..g....o..........l....f
f...l...........o...g...e...d.d...e...g...o...........l...f
f..l............o..g....e..d...d..e....g..o............l..f
f.l.............o.g.....e.d.ooo.d.e.....g.o.............l.f
fl..............og......ed..oco..de......go..............lf
f.l.............o.g.....e.d.ooo.d.e.....g.o.............l.f
f..l............o..g....e..d...d..e....g..o............l..f
f...l...........o...g...e...d.d...e...g...o...........l...f
f....l..........o....g..e....d....e..g....o..........l....f
f.....l.........o.....g.eeeeeeeeeee.g.....o.........l.....f
f......l........o......g...........g......o........l......f
f.......l.......o.......g.........g.......o.......l.......f
f........l......o........g.......g........o......l........f
f.........l.....o.........g.....g.........o.....l.........f
f..........l....o..........g...g..........o....l..........f
f...........l...o...........g.g...........o...l...........f
f............l..o............g............o..l............f
f.............l.ooooooooooooooooooooooooooo.l.............f
f..............l...........................l..............f
f...............l.........................l...............f
f................l.......................l................f
f.................l.....................l.................f
f..................l...................l..................f
f...................l.................l...................f
f....................l...............l....................f
f.....................l.............l.....................f
f......................l...........l......................f
f.......................l.........l.......................f
f........................l.......l........................f
f.........................l.....l.........................f
f..........................l...l..........................f
f...........................l.l...........................f
f............................l............................f
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+............................................................+............................................................+
+...........................................................+.+...........................................................+
+..........................................................+...+..........................................................+
+.........................................................+.....+.........................................................+
+........................................................+.......+........................................................+
+.......................................................+.........+.......................................................+
+......................................................+...........+......................................................+
+.....................................................+.............+.....................................................+
+....................................................+...............+....................................................+
+...................................................+.................+...................................................+
+..................................................+...................+..................................................+
+.................................................+.....................+.................................................+
+................................................+.......................+................................................+
+...............................................+.........................+...............................................+
+..............................................+...........................+..............................................+
+.............................................+.............................+.............................................+
+............................................+...............................+............................................+
+...........................................+.................................+...........................................+
+..........................................+...................................+..........................................+
+.........................................+.....................................+.........................................+
+........................................+.......................................+........................................+
+.......................................+.........................................+.......................................+
+......................................+...........................................+......................................+
+.....................................+.............................................+.....................................+
+....................................+...............................................+....................................+
+...................................+.................................................+...................................+
+..................................+...................................................+..................................+
+.................................+.....................................................+.................................+
+................................+.......................................................+................................+
+...............................+.........................................................+...............................+
+..............................+...........................................................+..............................+
+.............................+.CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC.+.............................+
+............................+..C............................r............................C..+............................+
+...........................+...C...........................r.r...........................C...+...........................+
+..........................+....C..........................r...r..........................C....+..........................+
+.........................+.....C.........................r.....r.........................C.....+.........................+
+........................+......C........................r.......r........................C......+........................+
+.......................+.......C.......................r.........r.......................C.......+.......................+
+......................+........C......................r...........r......................C........+......................+
+.....................+.........C.....................r.............r.....................C.........+.....................+
+....................+..........C....................r...............r....................C..........+....................+
+...................+...........C...................r.................r...................C...........+...................+
+..................+............C..................r...................r..................C............+..................+
+.................+.............C.................r.....................r.................C.............+.................+
+................+..............C................r.......................r................C..............+................+
+...............+...............C...............r.........................r...............C...............+...............+
+..............+................C..............r...........................r..............C................+..............+
+.............+.................C.............r.ooooooooooooooooooooooooooo.r.............C.................+.............+
+............+..................C............r..o............F............o..r............C..................+............+
+...........+...................C...........r...o...........F.F...........o...r...........C...................+...........+
+..........+....................C..........r....o..........F...F..........o....r..........C....................+..........+
+.........+.....................C.........r.....o.........F.....F.........o.....r.........C.....................+.........+
+........+......................C........r......o........F.......F........o......r........C......................+........+
+.......+.......................C.......r.......o.......F.........F.......o.......r.......C.......................+.......+
+......+........................C......r........o......F...........F......o........r......C........................+......+
+.....+.........................C.....r.........o.....F.eeeeeeeeeee.F.....o.........r.....C.........................+.....+
+....+..........................C....r..........o....F..e....t....e..F....o..........r....C..........................+....+
+...+...........................C...r...........o...F...e...t.t...e...F...o...........r...C...........................+...+
+..+............................C..r............o..F....e..t...t..e....F..o............r..C............................+..+
+.+.............................C.r.............o.F.....e.t.ooo.t.e.....F.o.............r.C.............................+.+
++..............................Cr..............oF......et..oVo..te......Fo..............rC..............................++
+.+.............................C.r.............o.F.....e.t.ooo.t.e.....F.o.............r.C.............................+.+
+..+............................C..r............o..F....e..t...t..e....F..o............r..C............................+..+
+...+...........................C...r...........o...F...e...t.t...e...F...o...........r...C...........................+...+
+....+..........................C....r..........o....F..e....t....e..F....o..........r....C..........................+....+
+.....+.........................C.....r.........o.....F.eeeeeeeeeee.F.....o.........r.....C.........................+.....+
+......+........................C......r........o......F...........F......o........r......C........................+......+
+.......+.......................C.......r.......o.......F.........F.......o.......r.......C.......................+.......+
+........+......................C........r......o........F.......F........o......r........C......................+........+
+.........+.....................C.........r.....o.........F.....F.........o.....r.........C.....................+.........+
+..........+....................C..........r....o..........F...F..........o....r..........C....................+..........+
+...........+...................C...........r...o...........F.F...........o...r...........C...................+...........+
+............+..................C............r..o............F............o..r............C..................+............+
+.............+.................C.............r.ooooooooooooooooooooooooooo.r.............C.................+.............+
+..............+................C..............r...........................r..............C................+..............+
+...............+...............C...............r.........................r...............C...............+...............+
+................+..............C................r.......................r................C..............+................+
+.................+.............C.................r.....................r.................C.............+.................+
+..................+............C..................r...................r..................C............+..................+
+...................+...........C...................r.................r...................C...........+...................+
+....................+..........C....................r...............r....................C..........+....................+
+.....................+.........C.....................r.............r.....................C.........+.....................+
+......................+........C......................r...........r......................C........+......................+
+.......................+.......C.......................r.........r.......................C.......+.......................+
+........................+......C........................r.......r........................C......+........................+
+.........................+.....C.........................r.....r.........................C.....+.........................+
+..........................+....C..........................r...r..........................C....+..........................+
+...........................+...C...........................r.r...........................C...+...........................+
+............................+..C............................r............................C..+............................+
+.............................+.CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC.+.............................+
+..............................+...........................................................+..............................+
+...............................+.........................................................+...............................+
+................................+.......................................................+................................+
+.................................+.....................................................+.................................+
+..................................+...................................................+..................................+
+...................................+.................................................+...................................+
+....................................+...............................................+....................................+
+.....................................+.............................................+.....................................+
+......................................+...........................................+......................................+
+.......................................+.........................................+.......................................+
+........................................+.......................................+........................................+
+.........................................+.....................................+.........................................+
+..........................................+...................................+..........................................+
+...........................................+.................................+...........................................+
+............................................+...............................+............................................+
+.............................................+.............................+.............................................+
+..............................................+...........................+..............................................+
+...............................................+.........................+...............................................+
+................................................+.......................+................................................+
+.................................................+.....................+.................................................+
+..................................................+...................+..................................................+
+...................................................+.................+...................................................+
+....................................................+...............+....................................................+
+.....................................................+.............+.....................................................+
+......................................................+...........+......................................................+
+.......................................................+.........+.......................................................+
+........................................................+.......+........................................................+
+.........................................................+.....+.........................................................+
+..........................................................+...+..........................................................+
+...........................................................+.+...........................................................+
+............................................................+............................................................+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Mathematica, 167 Bytes

Grid@Fold[g=Normal@SparseArray[h=f;a_List/;Plus@@Abs[a-#-1]==#->#3,2{#,#}+1]+a[#2,#/2+1]&[Length@#+1,#,#2]&;h=f=(h=g;a=ArrayPad)[#,1,#2]&;h@##&,{{#}},{##2}]/.Rule[0,]&

Die Eingabe muss eine Liste von Zeichen sein.

z.B

Grid@Fold[ ... ]/.Rule[0,]&["i","n","p","u","t"]

JavaScript (ES6), 252 Byte

f=([c,...r],a,n,d)=>c?a?d?f(r,[...Array(m=n+n+3)].map((_,i,b)=>b.map((_,j)=>(a[i-g]||[])[j-g]||(i+j-h&&j+h-i&&h+i-j&&i+j-h*3?` `:c)),h=m>>1,g=m-n>>1),m,0):f(r,[b=[...a].fill(c),...a,b].map(b=>[c,...b,c]),n+2,1):f(r,[[c]],1,0):a.map(b=>b.join``).join`\n`

<input oninput=o.textContent=this.value&&f(this.value)><pre id=o>

Wobei \ndas wörtliche Zeilenumbruchzeichen darstellt.

JavaScript (ES6), 204 229 238

Eine anonyme Funktion, die ein Array von Zeichenfolgen zurückgibt

s=>[...s].map(v=>{T=(x,y)=>((r=[...c[y+z]||' '.repeat(z+z)])[z+x]=r[z-x]=v,c[z+y]=c[z-y]=r.join``);for(y=o-~o,o*=++i%2+1;y--;i%2?T(q,y):T(o,q,T(q,o)))q=y-o;++o},l=s.length,z=(2<<-~l/2)-3-l%2,c=[i=o=0])&&c

Weniger golfen

s=>(
  l = s.length,
  z = (2 << l/2 + .5) - 3 - l%2, // zero position, total width and height are z+z+1
  c = [], // output canvas
  o = 0, // base drawing offset from z
  [...s].map( (v, i) => {
    // execute for each char v at position i in input string
    // helper function to put current char v at position (z+y, z+x),(z+y,z-x),(z-y,z+x),(z-y,z-x)
    // as the image has vertical and horizontal symmetry
    T=(x,y) =>(
      r = [...c[y+z]||' '.repeat(z+z)]), // convert string to array to set char at given pos
      r[z+x] = v, 
      r[z-x] = v,
      c[z+y] = c[z-y] = r.join`` // array to string again
    ); 
    // shorter than if(i%2) {for ...}else{for ...}
    // o is doubled at every other step
    //   and incremented (below) at each step
    for(y=o+o, i % 2 ? 0 : o=o*2; y >= 0; y--)
      q = y-o,
      i % 2 // even and odd steps have different shapes
        ? ( T(o,q), T(q,o))
        : T(q,y);
    ++o 
  }),
  c
)

Prüfung

f=
s=>[...s].map(v=>{T=(x,y)=>((r=[...c[y+z]||' '.repeat(z+z)])[z+x]=r[z-x]=v,c[z+y]=c[z-y]=r.join``);for(y=o-~o,o*=++i%2+1;y--;i%2?T(q,y):T(o,q,T(q,o)))q=y-o;++o},l=s.length,z=(2<<-~l/2)-3-l%2,c=[i=o=0])&&c

function update()
{
  O.textContent=f(I.value).join`\n`
}

update()

<input id=I value=CodeGolf oninput='update()'>
<pre id=O></pre>

Java - 429 417 Bytes

int r,l;int D(int n){return Math.abs(n-r);}int R(int n){return n=(n!=0)?((n%2!=0)?(R(n-1)+1):(2*R(n-1))+2):n;}char[][]C(String a){char[]c=a.toCharArray();l=a.length();r=R(l-1);int s=r*2+1,i,j,k;char[][]x=new char[s][s];for(i=0;i<s;i++){for(j=0;j<s;j++){x[i][j]=' ';for(k=0;k<l;k++){if(D(i)<=R(k)&&D(j)<=R(k)){if(k%2!=0){if(D(i)==R(k)||D(j)==R(k)){x[i][j]=c[k];}}else{if(D(i)+D(j)==R(k)){x[i][j]=c[k];}}}}}}return x;}

Der Kredit geht an @Anedar, da dies einen Einfluss auf die Struktur dieser Antwort hatte

Ungolfed:

int r, l;

int D(int n) {
    return Math.abs(n - r);
}

int R(int n) {
    return n = (n != 0) ? ((n % 2 != 0) ? (R(n - 1) + 1) : (2 * R(n - 1)) + 2) : n;
}

char[][] C(String a) {
    char[] c = a.toCharArray();
    l = a.length();
    r = R(l - 1);
    int s = r * 2 + 1, i, j, k;
    char[][] x = new char[s][s];
    for (i = 0; i < s; i++) {
        for (j = 0; j < s; j++) {
            x[i][j] = ' ';
            for (k = 0; k < l; k++) {
                if (D(i) <= R(k) && D(j) <= R(k)) {
                    if (k % 2 != 0) {
                        if (D(i) == R(k) || D(j) == R(k)) {
                            x[i][j] = c[k];
                        }
                    } else if (D(i) + D(j) == R(k)) {
                        x[i][j] = c[k];
                    }
                }
            }
        }
    }
    return x;
}

JavaScript (ES6), 322 Byte

Nicht wettbewerbsfähig

var L=s=>{var A=Array,a,D,c,d=-1,i,k,w,O,Z,P=(u,v)=>{Z=O-(d>>1);a[D?u-v+O:u+Z][D?u+v+O-d+1:v+Z]=c},G=(c,i)=>(D=~i&1)?(d+=2,w=2*d-1):(d+=d+1,w=d);s=[...s];s.map(G);a=A(w).fill(0).map(a=>A(w).fill` `);O=w>>1;d=-1;s.map((C,i)=>{G(0,i);c=C;for(k=d;k--;)P(0,k),P(d-1,k),P(k,0),P(k,d-1)});return a.map(v=>v.join("")).join("\n")}

Weniger Golphed

var L=s=>{
    var A=Array,a,D,c,d=-1,i,k,w,O,Z
    P=(u,v)=>{
        Z=O-(d>>1)
        a[D?u-v+O:u+Z][D?u+v+O-d+1:v+Z]=c},
    G=(c,i)=>(D=~i&1)?(d+=2,w=2*d-1):(d+=d+1,w=d)
    s=[...s]
    s.map(G)
    a=A(w).fill(0).map( a=>A(w).fill` `)
    O=w>>1
    d=-1
    s.map((C,i)=>{
        G(0,i)
        c=C
        for(k=d;k--;)
            P(0,k),P(d-1,k),P(k,0),P(k,d-1)})
    return a.map(v=>v.join("")).join("\n")
}

Testen Sie mit

L("arty*")

Einfache Gewinne durch Weglassen der führenden var L=und .join("\n")in der return-Anweisung für -17 Bytes, aber geben Sie sie erneut ein, um den Code zu testen : D

Es handelt sich um eine Antwort mit zwei Durchgängen, bei der die Breite ( w) bewertet wird, die zum Zeichnen eines Quadrat- oder Diamantplots erforderlich ist, bevor Pim zweiten Durchgang Punkte mithilfe von Rotation und Translation gezeichnet werden. dist die Abmessung (Höhe oder Breite) eines nicht gedrehten Quadrats vor der Verschiebung oder Drehung.

Drehung und Skalierung um √2 Details aus der Mathematica-Antwort . Verwendung der getaggten String-Vorlage aus der ersten Antwort in diesem Thread . Vielen Dank an beide für das Lernen. Stimmen für die Frage und Antworten.

Powershell, 269 245 238 Bytes

$m,$a=$args
if($a){$a|%{$c=$_
$w=$m[0].Length
$m=&({$i=0
($m|%{$_+'.'*$w+'.'})+(0..$w|%{'..'*$w+'.'})|%{($s=$_|% t*y)[--$i]=$c
-join$s}},{$m|%{$_+$c}
$c*$w+$c})[++$k%2]}
$m=($w=$m[0].Length-1)..1+0..$w|%{$m[$_]|%{-join($_[$w..1]+$_)}}}
$m

Ungolfed, erklärt & testgeschrieben:

$f={

# $args is input char array
# $m is canvas.
# This script draws a right-bottom quadrant (axes included) on the canvas.
# If $args contains one char only then $m contains this char and whole image at same time.
$m,$a=$args                             # $a is other chars array
if($a){
    $a|%{
        $c=$_                           # $c is current char
        $w=$m[0].Length                 # $w is width of the canvas
        $m=&({                          # $m is the result of executing one of the two scriptblocks
            # draw Diamond quadrant
            $i=0
            ($m|%{$_+'.'*$w+'.'})+      # expand the canvas
            (0..$w|%{'..'*$w+'.'})|%{   # add new lines
                ($s=$_|% t*y)[--$i]=$c  # take a diamond edge on each line of the canvas
                -join$s
            }
        },{
            # draw Square quadrant
            $m|%{$_+$c}                 # expand the canvas
            $c*$w+$c                    # add new line
        })[++$k%2]                      # get a scriptblock from the array and execute it
    }

    # We have a right-bottom part of drawn AsciiArt now. Flip, flip, paste it.
    $w=$m[0].Length-1                   # width of the canvas
    $m=$w..1+0..$w|%{$m[$_]|%{          # flip vertical
        -join($_[$w..1]+$_)             # flip horizontal
    }}
}
$m

}

@(
,('c',@"
c
"@)
,('ca',@"
aaa
aca
aaa
"@)
,('cat',@"
....t....
...t.t...
..t...t..
.t.aaa.t.
t..aca..t
.t.aaa.t.
..t...t..
...t.t...
....t....
"@)
,('cats',@"
sssssssssss
s....t....s
s...t.t...s
s..t...t..s
s.t.aaa.t.s
st..aca..ts
s.t.aaa.t.s
s..t...t..s
s...t.t...s
s....t....s
sssssssssss
"@)
,('meows',@"
............s............
...........s.s...........
..........s...s..........
.........s.....s.........
........s.......s........
.......s.........s.......
......s...........s......
.....s.wwwwwwwwwww.s.....
....s..w....o....w..s....
...s...w...o.o...w...s...
..s....w..o...o..w....s..
.s.....w.o.eee.o.w.....s.
s......wo..eme..ow......s
.s.....w.o.eee.o.w.....s.
..s....w..o...o..w....s..
...s...w...o.o...w...s...
....s..w....o....w..s....
.....s.wwwwwwwwwww.s.....
......s...........s......
.......s.........s.......
........s.......s........
.........s.....s.........
..........s...s..........
...........s.s...........
............s............
"@)
,('codegolf',@"
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
f............................l............................f
f...........................l.l...........................f
f..........................l...l..........................f
f.........................l.....l.........................f
f........................l.......l........................f
f.......................l.........l.......................f
f......................l...........l......................f
f.....................l.............l.....................f
f....................l...............l....................f
f...................l.................l...................f
f..................l...................l..................f
f.................l.....................l.................f
f................l.......................l................f
f...............l.........................l...............f
f..............l...........................l..............f
f.............l.ooooooooooooooooooooooooooo.l.............f
f............l..o............g............o..l............f
f...........l...o...........g.g...........o...l...........f
f..........l....o..........g...g..........o....l..........f
f.........l.....o.........g.....g.........o.....l.........f
f........l......o........g.......g........o......l........f
f.......l.......o.......g.........g.......o.......l.......f
f......l........o......g...........g......o........l......f
f.....l.........o.....g.eeeeeeeeeee.g.....o.........l.....f
f....l..........o....g..e....d....e..g....o..........l....f
f...l...........o...g...e...d.d...e...g...o...........l...f
f..l............o..g....e..d...d..e....g..o............l..f
f.l.............o.g.....e.d.ooo.d.e.....g.o.............l.f
fl..............og......ed..oco..de......go..............lf
f.l.............o.g.....e.d.ooo.d.e.....g.o.............l.f
f..l............o..g....e..d...d..e....g..o............l..f
f...l...........o...g...e...d.d...e...g...o...........l...f
f....l..........o....g..e....d....e..g....o..........l....f
f.....l.........o.....g.eeeeeeeeeee.g.....o.........l.....f
f......l........o......g...........g......o........l......f
f.......l.......o.......g.........g.......o.......l.......f
f........l......o........g.......g........o......l........f
f.........l.....o.........g.....g.........o.....l.........f
f..........l....o..........g...g..........o....l..........f
f...........l...o...........g.g...........o...l...........f
f............l..o............g............o..l............f
f.............l.ooooooooooooooooooooooooooo.l.............f
f..............l...........................l..............f
f...............l.........................l...............f
f................l.......................l................f
f.................l.....................l.................f
f..................l...................l..................f
f...................l.................l...................f
f....................l...............l....................f
f.....................l.............l.....................f
f......................l...........l......................f
f.......................l.........l.......................f
f........................l.......l........................f
f.........................l.....l.........................f
f..........................l...l..........................f
f...........................l.l...........................f
f............................l............................f
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
"@)
#,('codegolfes',"")
) | % {
    $s, $e = $_
    $c = $s-split''-ne''
    $r = &$f @c
    $r = $r-join"`n"
    "$($e-eq$r): $s`n$r"
}