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finetuning the mandelbrot

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tTh 2023-05-03 02:46:52 +02:00
parent 89d1cbda85
commit 6066dee701
2 changed files with 7 additions and 7 deletions
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4
Fraktalism/mandelbrots.f90
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@ -28,7 +28,7 @@ subroutine mandelbrot_one(pic, start)
integer :: iter, maxiter
logical :: escape
write(0,*) "> plotsomething"
! write(0,*) "> plotsomething"
width = ubound(pic, 1)
height = ubound(pic, 2)
@ -37,7 +37,7 @@ subroutine mandelbrot_one(pic, start)
! initialise constants
!
maxiter = 1984
maxiter = 3456
! enter megaloop
!

10
Fraktalism/mkmandel.f90
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@ -23,9 +23,9 @@ program mkmandel
write(0, *) "-------- making some mandelbrot -------"
allocate(pic(1024, 768))
allocate(pic(640, 480))
do angle = 0, 1500
do angle = 0, 2000
call rgbpix_set_to_zero(pic)
@ -33,10 +33,10 @@ program mkmandel
radius = float(angle) / 2000.0
write (filename, "(a, i5.5, a)") "frames/mandel/", angle, ".pnm"
! filename = trim(filename)
write(0,*) "#### passe ", angle, radangle, trim(filename)
write(0,*) "passe ", angle, radangle, trim(filename)
stx = radius * (sin(radangle*2.07) + 0.2131*sin(radangle*7.36))
sty = radius * (cos(radangle*3.21) + 0.2725*cos(radangle*9.99))
stx = radius * (sin(radangle*4.07) + 0.2131*sin(radangle*11.36))
sty = radius * (cos(radangle*6.21) + 0.2725*cos(radangle*10.99))
call mandelbrot_one(pic, complex(stx, sty))
call rgbpix_spit_as_pnm_8 (pic, trim(filename))