; Date: Thu, 19 Jun 2003 10:43:09 -0400 ; From: Jim Muth ; Subject: [Fractint] FOTD 19-06-03 (Cyclonic Circulation [7]) ; Id: <1.5.4.16.20030619104255.2a27983c@pop.mindspring.com> ; --------- ; ; FOTD -- June 19, 2003 (Rating 7) ; ; Fractal visionaries and enthusiasts: ; ; In the northern hemisphere the atmosphere turns counter- ; clockwise as it is drawn into a cyclone and clockwise as it is ; pushed from an anticyclone. In the southern hemisphere exactly ; the opposite is true. But Fractal Central is located in the ; northern hemisphere, and since the arms of today's spiral image ; are moving inward in a counter-clockwise direction and curving ; to the left as they go, the image can only be called "Cyclonic ; Circulation". ; ; When the atmosphere curves to the left in the northern ; hemisphere, it causes low-level convergence, which forces the ; air upward and squeezes any available moisture from it. We have ; had a lot of convergence at Fractal Central over the past two ; months, where only 2 of the past 60 days have been clear. ; ; People are joking that the farmers prayed for rain all last ; year, and their prayers are being answered all this year. Now ; the farmers are praying for dry weather so they can work their ; fields. Worried about next year, my advice is for them to make ; their prayers more specific. ; ; On a more fractal note, the formula of today's image mixes 1.2 ; negative portions of Z^(1.4) with 0.3 parts of Z^(-0.8) and adds ; (1/C). It was calculated by the MandelbrotMix2 formula, which ; is identical to the MandelbrotMix4 formula, except that it ; includes the ability to change the automatically calculated ; value of initial Z. ; ; It's a rather lively image, enhanced by a brilliant palette of ; colors. With other color palettes, the image actually reminds ; me of rows of shark's teeth, but a man-eating name would give a ; wrong impression, so I chose the palette that reminds me of a ; cyclone, and rated the image at a 7. ; ; The 4-minute render time is within reason for an image that ; rates a 7. And as always, the completed GIF file is available ; for download on Paul's web site at: ; ; ; ; and on Scott's site at: ; ; ; ; Though the clouds hung tough on Wednesday, a bit of afternoon ; sun did manage to break through, the rain held off, and the ; temperature reached 75F 24C. As a result, the fractal cats ; were happy and I saved a can of tuna. If only today could turn ; out as well...but with rain having already fallen and more due, ; it most likely will not. ; ; The cats are still sleeping, but before long they will get up, ; go to the door and ask to be let out. They will then see the ; rain and turn moody. I fear tuna will be necessary. Finishing ; the day's work will also be necessary, but before I finish, I ; must start. Until next FOTD, take care, and keep dry, that is ; if possible. ; ; ; Jim Muth ; jamth@mindspring.com ; jimmuth@aol.com ; ; ; START PARAMETER FILE================================ CyclonicCirclation { ; time=0:04:04.58--SF5 on a P200 reset=2002 type=formula formulafile=allinone.frm formulaname=MandelbrotMix2 function=recip passes=1 center-mag=-0.74981462059503250/+0.015225453504671\ 47/3.458564e+011/1/-106/-0.0139524412207075732 params=-1.2/1.4/0.3/-0.8/0/525/0/0 float=y maxiter=500 inside=0 logmap=80 periodicity=10 colors=070070070070070070070472AAAEEHJPPPTVVWb`_id\ dqikxoqzutzzwzzzzv_uoCPg70d74b7EZ7LX7VV7bR7kPHsNRz\ J_zHizGszEszEizC_zCRzCHzA7zA7z87v87s8Co6Gk6Hg4Ld4P\ `4RZ8TTCVNEXHHYEL_8N_2Ra0Vd0Xe0`g0di0ei0bk0`m0Zo0X\ o0Vq0Ts0Ru0Pu4Nv8LxCJzGHzJGzNEzRCzVAzZ8zb6ze4zi8zg\ AzgCzgGzgHzgJzgNzgPzgRzgVzgXzgZzg`zgXzeVzdTzdRzbPz\ `Nz`LzZHzXGzXEzVCxTAvT8uR6sP2oP0mN0kL0gL0eJ0dH0aH0\ eG0iE6oCCsAGv6Lz4Pz2Vz0`z0dz0iz0mz0kz0kz6kzCkzJkzP\ kzVkz`kzgkzmkzskzxmzzozzqxzsvzuozwmsymdzmPzmAzm0zm\ 0zm0zm0zm0zm0zm6zmAzmGzqJzvPzzTzzXzzZzz`zzbzzdzzez\ zgzzizzkzzmzzmzzozzqzzszzuzzvzzxzzzzzzzzzzzzzzzzzz\ zzqzzizz`zzTzzLzzCzz4zz0zz0zz0zz0zz0zz0zz0zz6zzAzz\ GzzJzzZzzkzzgzzdzzbzzZzzXzzTzzRzzNzzLzzHzzGzzCzzAz\ z6zz4zz0zz0zz0zz2zz4zz6zz8zz8zzAzzCzzEzzGzzHzzHzzJ\ zzLzzNzzPzzRzzRzzNzzJzzHzzEzzAzz8zz4zz0zz0zz0zz0zz\ 0zz0zz4zz8zzAzzEzzHzzLzzP } frm:MandelbrotMix2 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(((-a*b*g*h)^j)+(p4)), k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } ; END PARAMETER FILE================================== ;