Different ways of mirroring in OpenSCAD

gistfile1.txt

independent = false;  // Note: Independent mirroring of 2 axes is actually a rotation
fix111 = false;       // Only relevant if independent=false

module thing(i,j,k) {
  translate([2,2,2]) difference() {
    cube(2,center=true);
    linear_extrude(convexity=10)
      text(text=str("M",i,j,k),size=0.5,valign="center",halign="center");
  }
}

if (independent) {
  for(i=[0,1],j=[0,1],k=[0,1])
    mirror([i,0,0]) mirror([0,j,0]) mirror([0,0,k]) thing(i,j,k);
} else {
  if (fix111) {
    for(i=[0,1],j=[0,1],k=[0:1:2-i-j]) 
      mirror([i,j,k]) thing(i,j,k);
    scale(-1) thing(1,1,1); // mirror through origin
  } else {
    for(i=[0,1],j=[0,1],k=[0,1]) 
      mirror([i,j,k]) thing(i,j,k);
  }
}