## blob23 |

The blob in all its glory:

Twirl with your mouse

circular case with 4 handles.

Click on the snapshot to download the blob's stl file. |

1; # Prevent Octave from thinking that this is a function # though one is defined here function w = f(x2,y2,z2,c,r,e) x = (x2-c(1))/r(1); y = (y2-c(2))/r(2); z = (z2-c(3))/r(3); # function at origin must be <0, and >0 far enough away. w=0 defines the surface k2 = 9.3; nb = 4; th = atan2(x,y); r = sqrt(x.^2+y.^2); w = 3./((1+0.5*cos(nb*th)).^2 + (z/2).^2 + (r-5).^2) - 1./((x/k2).^2+(y/k2).^2+(z/1.5).^4)+1 ; endfunction;GNU Octave