; Date: Sun, 20 Jun 2010 18:12:57 -0400 ; From: Jim Muth ; Subject: [Fractint] FOTD 21-06-10 (Great AntiMinibrot [10]) ; Id: <1.5.4.16.20100620181258.11376b40@pop.mindspring.com> ; --------- ; ; FOTD -- June 21, 2010 (Rating 10) ; ; Fractal visionaries and enthusiasts: ; ; Minibrots in fractals are easy to find and very widely known, ; but much less known are antiminibrots, which are quite difficult ; to find. Minibrots lie at the center of a basin where the ; iteration count increases as the center is neared, and reaches ; infinity at the edge of minibrot itself. Antiminibrots are ; peaks with an area of lowest iteration count at the center. In ; today's image the center is beyond resolution, so I cannot give ; the iteration count at the central peak. But the count need not ; be as low as 1. ; ; In a minibrot basin, the number of elements surrounding the ; central minibrot bifurcates in a 2,4,8,16... series as the 'brot ; is approached. In an antiminibrot such as the one in today's ; image, the number antibifurcates in a 16,8,4,2 series. ; ; In everyday minibrot images, the lowest iteration bands lie ; around the edges of the frame, and the automatic logmap feature ; (setting the logmap to 2) works very well, but in antiminibrot ; images such as today's, where the lowest count is at the center, ; the automatic logmap is useless. Luckily, turning off the log- ; map in today's image works just as well as the automatic feature. ; ; Today's image rates an honest 10. Its mathematical and coloring ; values are both well above average. And its cauculation time of ; 59 seconds can hardly be beat. BTW, 95-percent of the coloring ; was created by the Fractint program. I tweaked only 10 or so ; color registers. ; ; The name "Great AntiMinibrot" says it all. ; ; The image cauculates in less than a minute, but it still takes ; some time to set up the parameter file. To avoid this small ; hassle, the finished image may be seen already calculated on the ; FOTD web site at: ; ; ; ; Partly cloudy skies with slightly lower temperatures and notice- ; ably lower humidity prevailed here at Fractal Central on Sunday. ; Nicholas, the fractal cat who dislikes heat, spent most of the ; day stretched on the cool tile floor. Cassie, who likes it ; warmer, passed the day curled on the foot stool. FL and I spent ; the day taking it easy. ; ; The next FOTD, probably not as great as today but hopefully ; still quite good, will be posted in 24 hours. Until then, take ; care, and get a new angle on things. ; ; ; Jim Muth ; jamth@mindspring.com ; jimmuth@aol.com ; ; ; START PARAMETER FILE======================================= Great_AntiMinibrot { ; time=0:00:59.09-SF5 on P4-2000 reset=2004 type=formula formulafile=basicer.frm formulaname=FinDivBrot-2 function=recip center-mag=-0.2382764653067911/+0.6598651051332169\ /1.26548e+013/1/-15/0 params=6/1e+023/0/0 float=y maxiter=2250 periodicity=6 mathtolerance=0.05/1 colors=000T_IXWMGELHFMIGMJGMKHMKHMLIMMINNJNNJNOKNP\ KNQLNRLNRMOSMOTNOUNOUOOVOOWPOXPPYQPYQPZRP_RP`SPF8_\ QIUT3gU5fU6eV7dV8cV9bWBaWC`XD_XEZXFYYHYYIXYJWZKVZL\ U_NT_OS_PR`QQ`RPmg4ke7jc9ibBg`Df_FeYHcWJbVLaTNvZkt\ YisYhrXgqXfpXdoWcmWblWakV`jVZiUYhUXfUWeTVdTTcTSbSR\ aSQAC_NVgOVfPVePVdQUbRUaSU`TU_TUZUTYVTXWTWXTVXTUYS\ T_SPZSS_SR`SQXubYsaYr`Yp`Yo_YnZZlZZkYZjXZhXZgWZfW_\ dV_cU_aU_`T__S`YS`XR0mz0kz0iz2gz4ez5cz6az7_z9YzAWz\ BUzCSzDQzFOvGMrHLmILhJMcLM_MNZNNYOOYOOXNPWNPVMQUMR\ TLRSLSRKTQKUPJXOI_MKbKMeIOhGQkETnCVqAXt8Zw6ay3ax3`\ u3_r4Zo4Yl5Xi5Wf6Vc6U`6TY7SV7RS8QP8PM9OJ9NGAMMGLTM\ K_Szczzazv_wtYtrWqpUnnSklPhjNehKbeH_cEXaCU_9RY6OV3\ KTAMRHOPORNVTKbWNaXQ_YUZZXX`_VacUbfSciQemPfpNgtLir\ MioNilOijPigQidRhVKVLCHB42B42B52B52B62B72B72B82B82\ B92BA2BA2BB2BC2FE8KHFPKMTNTYQ_bTfaTe_TcZTaXT_WTYUT\ WSTVRTT`SP`SPDp3Hk7LgBPcE } frm:FinDivBrot-2 { ; Jim Muth z=(0,0), c=pixel, a=-(real(p1)-2), esc=(real(p2)+16), b=imag(p1): z=(b)*(z*z*fn1(z^(a)+b))+c |z| < esc } ; END PARAMETER FILE========================================= ; ; ; ; ; _______________________________________________ ; Fractint mailing list ; Fractint@mailman.xmission.com ; http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint ;