589 lines
13 KiB
PostScript
Executable File
589 lines
13 KiB
PostScript
Executable File
%!
|
|
% vasarely
|
|
% Elizabeth D. Zwicky
|
|
% zwicky@sgi.com
|
|
/vasarelysave save def % prevent residual side effects
|
|
%
|
|
% Inspired by Vasarely's experiments with tilting circles and squares
|
|
% (for instance "Tlinko" and "Betelgeuse"
|
|
|
|
%% circles
|
|
/part { circle } def /nnrand false def
|
|
%% squares
|
|
% /part { ngon } def /nn 4 def /nnrand false def
|
|
%% random polygons
|
|
% /part { ngon } def /nnrand true def
|
|
%% random stars (not my favorite on this program)
|
|
% /part { nstar } def /nnrand true def
|
|
|
|
%% tilt the base shape a random amount?
|
|
/twist false def
|
|
% /twist true def
|
|
|
|
|
|
/rainbow false def
|
|
%% To make rainbows
|
|
% /rainbow true def
|
|
%% Set this to 1 to go through a full range of colors
|
|
/rainrange .25 def
|
|
|
|
% number of different designs per page
|
|
/inheight 2 def
|
|
/inwidth 2 def
|
|
% number of repeats in a design
|
|
/xtimes 10 def
|
|
/ytimes 16 def
|
|
|
|
%% This sets the relationship between the two hues: comptwo is maximum contrast
|
|
/colorway {comptwo} def
|
|
%% monochrome comptwo harmtwo harmfour freecolor compthree closeharm
|
|
%% origcolor
|
|
|
|
%% This sets the brightness and saturation of the colors; vivid makes
|
|
%% them both bright
|
|
/colorfam {vivid} def
|
|
%% vivid jewel intense medium pastel free orig contrast
|
|
%% medjewel medvivid vivpastel medpastel
|
|
|
|
|
|
%% Only experts below this point!
|
|
|
|
10 srand
|
|
/seed rand def
|
|
|
|
/starcompensate false def
|
|
/constroke 1 def
|
|
|
|
|
|
|
|
/circle {
|
|
/radius radius 1.33 mul def
|
|
currentpoint /herey exch def /herex exch def
|
|
herex herey radius 0 360 arc
|
|
} def
|
|
|
|
/ngon{ % polygon of n sides, n determined by nn
|
|
nside 2 div radius rmoveto
|
|
nn cvi {
|
|
nside neg 0 rlineto
|
|
360 360 nn div sub neg rotate
|
|
} repeat
|
|
closepath
|
|
} def
|
|
|
|
/nstar{ % star of n points, n determined by nstarslider
|
|
/radius radius 1.33 mul def
|
|
currentpoint /herey exch def /herex exch def
|
|
0 radius rmoveto
|
|
90 nstarangle 2 div add neg rotate
|
|
nn cvi {nstarside 0 rlineto
|
|
180 180 nstarangle 2 mul sub sub neg rotate
|
|
nstarside 0 rlineto
|
|
180 180 360 nn div sub nstarangle 2 mul sub sub rotate
|
|
} repeat
|
|
90 nstarangle 2 div add rotate
|
|
closepath
|
|
} def
|
|
|
|
/nstarangle {180 360 nn div sub 3 div} def
|
|
/nstarside {
|
|
2
|
|
radius
|
|
1
|
|
180 nn div
|
|
sin
|
|
div
|
|
div
|
|
mul
|
|
nstarangle sin
|
|
mul
|
|
180
|
|
nstarangle 2 mul
|
|
sub
|
|
sin
|
|
div
|
|
} def
|
|
|
|
/nside {
|
|
2
|
|
radius
|
|
360 nn div 2 div tan
|
|
mul
|
|
mul
|
|
} def
|
|
|
|
|
|
/tan { /alpha exch def
|
|
alpha sin
|
|
1 alpha sin dup mul sub sqrt
|
|
div
|
|
} def
|
|
|
|
|
|
/pastel {
|
|
/backbright high def
|
|
/backsat medlow def
|
|
/fillbright high def
|
|
/fillsat medlow def
|
|
/eobright high def
|
|
/eosat medlow def
|
|
constroke 0 eq {
|
|
/strokebright high def
|
|
/strokesat medlow def
|
|
}
|
|
{
|
|
/strokebright low def
|
|
/strokesat high def
|
|
} ifelse
|
|
} def
|
|
|
|
/jewel {
|
|
/fillbright med def
|
|
/fillsat high def
|
|
/backbright med def
|
|
/backsat high def
|
|
/eobright med def
|
|
/eosat high def
|
|
constroke 0 eq {
|
|
/strokebright medlow def
|
|
/strokesat high def
|
|
}
|
|
{
|
|
/strokebright high def
|
|
/strokesat medlow def
|
|
} ifelse
|
|
} def
|
|
|
|
/vivid {
|
|
/fillsat 1 def
|
|
/fillbright high def
|
|
/eosat 1 def
|
|
/eobright high def
|
|
/backsat 1 def
|
|
/backbright high def
|
|
constroke 0 eq {
|
|
/strokesat 1 def
|
|
/strokebright high def
|
|
}
|
|
{
|
|
/strokesat high def
|
|
/strokebright medlow def
|
|
} ifelse
|
|
} def
|
|
|
|
/free {
|
|
/fillsat anyrand def
|
|
/fillbright anyrand def
|
|
/eosat anyrand def
|
|
/eobright anyrand def
|
|
/backsat anyrand def
|
|
/backbright anyrand def
|
|
/strokesat anyrand def
|
|
/strokebright anyrand def
|
|
} def
|
|
|
|
/contrast {
|
|
/sat medhigh def
|
|
/bright rand 2 mod 0 eq {medhigh} {medlow} ifelse def
|
|
/backsat sat def
|
|
/backbright bright def
|
|
/eosat sat def
|
|
/eobright 1 bright sub def
|
|
/fillsat sat def
|
|
/fillbright bright def
|
|
/strokebright rand 2 mod def
|
|
/strokesat rand 2 mod def
|
|
|
|
} def
|
|
/medium {
|
|
/backsat med def
|
|
/backbright med def
|
|
/eosat med def
|
|
/eobright med def
|
|
/fillsat med def
|
|
/fillbright med def
|
|
/strokebright med def
|
|
/strokesat med def
|
|
|
|
} def
|
|
/intense {
|
|
/backsat high def
|
|
/backbright med def
|
|
/eosat high def
|
|
/eobright high def
|
|
/fillsat high def
|
|
/fillbright med def
|
|
/strokebright high def
|
|
/strokesat high def
|
|
|
|
} def
|
|
/orig {
|
|
/backsat rand 99 mod 55 add 100 div def
|
|
/backbright rand 99 mod 35 add 100 div def
|
|
/eosat rand 77 mod 22 add 100 div def
|
|
/eobright 90 rand 75 mod sub 15 add 100 div def
|
|
/fillsat 100 rand 90 mod sub 100 div def
|
|
/fillbright 100 rand 45 mod sub 20 add 100 div def
|
|
/strokebright 100 rand 55 mod sub 100 div def
|
|
/strokesat 100 rand 85 mod sub 100 div def
|
|
|
|
} def
|
|
|
|
/medjewel {
|
|
/alt rand 2 mod def
|
|
/backsat alt 0 eq {high} { med} ifelse def
|
|
/fillsat alt 0 eq {med} {high} ifelse def
|
|
/eosat alt 0 eq {high} {med} ifelse def
|
|
/backbright med def
|
|
/fillbright med def
|
|
/eobright med def
|
|
constroke 0 eq {
|
|
/strokebright medlow def
|
|
/strokesat high def
|
|
}
|
|
{
|
|
/strokebright high def
|
|
/strokesat medlow def
|
|
} ifelse
|
|
} def
|
|
|
|
/medvivid {
|
|
/alt rand 2 mod def
|
|
/backsat alt 0 eq {1} { med} ifelse def
|
|
/fillsat alt 0 eq {med} {1} ifelse def
|
|
/eosat alt 0 eq {1} {med} ifelse def
|
|
/backbright alt 0 eq {high} {med} ifelse def
|
|
/eobright alt 0 eq {high} {med} ifelse def
|
|
/fillbright alt 0 eq {med} {high} ifelse def
|
|
constroke 0 eq {
|
|
/strokesat 1 def
|
|
/strokebright high def
|
|
}
|
|
{
|
|
/strokesat high def
|
|
/strokebright medlow def
|
|
} ifelse
|
|
} def
|
|
/vivpastel {
|
|
/backlight rand 2 mod def
|
|
/backsat backlight 0 eq {medlow} {1} ifelse def
|
|
/eosat backlight 0 eq {medlow} {1} ifelse def
|
|
/fillsat backlight 0 eq {1} {medlow} ifelse def
|
|
/fillbright high def
|
|
/backbright high def
|
|
/eobright high def
|
|
constroke 0 eq {
|
|
/strokesat 1 def
|
|
/strokebright high def
|
|
}
|
|
{
|
|
/strokesat high def
|
|
/strokebright medlow def
|
|
} ifelse
|
|
} def
|
|
|
|
/medpastel {
|
|
/alt rand 2 mod def
|
|
/backsat alt 0 eq {medlow} {med} ifelse def
|
|
/eosat alt 0 eq {medlow} {med} ifelse def
|
|
/fillsat alt 0 eq {med} {medlow} ifelse def
|
|
/fillbright alt 0 eq { high } {med} ifelse def
|
|
/backbright alt 0 eq {med} { high } ifelse def
|
|
/eobright alt 0 eq {med} { high } ifelse def
|
|
constroke 0 eq {
|
|
/strokebright high def
|
|
/strokesat medlow def
|
|
}
|
|
{
|
|
/strokebright low def
|
|
/strokesat high def
|
|
} ifelse
|
|
} def
|
|
|
|
/maxcon {
|
|
rand 2 mod 1 eq {
|
|
/backsat 0 def
|
|
/backbright 0 def
|
|
/eosat 0 def
|
|
/eobright 0 def
|
|
/fillsat 0 def
|
|
/fillbright 1 def
|
|
/strokebright 1 def
|
|
/strokesat 0 def
|
|
}
|
|
{
|
|
/backsat 0 def
|
|
/backbright 1 def
|
|
/eosat 0 def
|
|
/eobright 1 def
|
|
/fillsat 0 def
|
|
/fillbright 0 def
|
|
/strokebright 0 def
|
|
/strokesat 0 def
|
|
}
|
|
ifelse
|
|
} def
|
|
|
|
/monochrome {
|
|
/fillhue hue closevary def
|
|
/strokehue hue closevary def
|
|
/eohue hue closevary def
|
|
/backhue hue def
|
|
} def
|
|
|
|
/blackandwhite {
|
|
/fillhue 1 def
|
|
/eohue 0 def
|
|
/backhue 0 def
|
|
/strokehue 1 def
|
|
} def
|
|
|
|
|
|
/freecolor {
|
|
/fillhue anyrand def
|
|
/strokehue anyrand def
|
|
/eohue anyrand def
|
|
/backhue anyrand def
|
|
} def
|
|
|
|
/purple {
|
|
/fillhue rand 15 mod 80 add 100 div def
|
|
/backhue rand 15 mod 80 add 100 div def
|
|
/strokehue rand 15 mod 80 add 100 div def
|
|
/eohue rand 15 mod 80 add 100 div def
|
|
/backhue rand 15 mod 80 add 100 div def
|
|
} def
|
|
|
|
/comptwo {
|
|
/fillhue hue closevary def
|
|
/strokehue hue .5 add dup 1 gt {1 sub} if def
|
|
/backhue strokehue def
|
|
/eohue strokehue closevary def
|
|
} def
|
|
|
|
/compthree {
|
|
/backhue hue def
|
|
/strokehue hue 1 3 div add dup 1 gt {1 sub} if closevary def
|
|
/fillhue strokehue closevary def
|
|
/eohue hue 1 3 div sub dup 1 lt { 1 add} if closevary def
|
|
} def
|
|
|
|
/origcolor {
|
|
/backhue hue def
|
|
/strokehue
|
|
hue 1000 mul cvi 3 mod dup 1 eq
|
|
{hue closevary}
|
|
{2 eq
|
|
{rand 999 mod 1000 div}
|
|
{hue .5 add dup 1 gt {1 sub} if }
|
|
ifelse
|
|
}
|
|
ifelse def
|
|
/fillhue hue 1000 mul cvi 3 mod dup 1 eq
|
|
{hue closevary}
|
|
{2 eq
|
|
{rand 999 mod 1000 div}
|
|
{hue .5 add dup 1 gt {1 sub} if }
|
|
ifelse
|
|
}
|
|
ifelse
|
|
def
|
|
/eohue hue 1000 mul cvi 2 mod 1 eq
|
|
{hue closevary}
|
|
{rand 999 mod 1000 div}
|
|
ifelse def
|
|
} def
|
|
|
|
/harmtwo {
|
|
/fillhue hue closevary def
|
|
/backhue hue def
|
|
/strokehue hue .2 add dup 1 gt {1 sub} if closevary def
|
|
/eohue strokehue closevary def
|
|
} def
|
|
|
|
/harmfour {
|
|
/fillhue hue closevary def
|
|
/backhue hue .1 add dup 1 gt {1 sub} if def
|
|
/strokehue hue .2 add dup 1 gt {1 sub} if closevary def
|
|
/eohue hue .1 sub dup 1 lt {1 add} if closevary def
|
|
} def
|
|
|
|
/closeharm {
|
|
/fillhue hue def
|
|
/backhue hue .05 add dup 1 gt {1 sub} if closevary def
|
|
/strokehue hue .1 add dup 1 gt {1 sub} if closevary def
|
|
/eohue hue .05 sub dup 0 lt {1 add} if closevary def
|
|
} def
|
|
|
|
|
|
/high {100 rand 25 mod sub 100 div } def
|
|
/med { rand 33 mod 33 add 100 div } def
|
|
/medhigh {100 rand 50 mod sub 100 div } def
|
|
/medlow {rand 50 mod 100 div } def
|
|
/low { rand 25 mod 100 div} def
|
|
/anyrand { rand 100 mod 100 div } def
|
|
/closevary {rand 70 mod rand 100 mod sub 1000 div add} def
|
|
|
|
%rainbow
|
|
% {/colorfill {fillhue 1 1 sethsbcolor fill} def}
|
|
/colorfill {fillhue fillsat fillbright sethsbcolor fill } def
|
|
%ifelse
|
|
/colorstroke {strokehue strokesat strokebright sethsbcolor stroke } def
|
|
/eocolorfill {eohue eosat eobright sethsbcolor eofill } def
|
|
/backfill{ backhue backsat backbright sethsbcolor fill } def
|
|
|
|
/xstep { xrange xtimes 1 sub div x 1 sub mul } def
|
|
/ystep { yrange ytimes 1 sub div y 1 sub mul} def
|
|
|
|
/functionarray [
|
|
{sin abs}
|
|
{sin }
|
|
{cos }
|
|
{cos abs}
|
|
{sin dup mul }
|
|
{cos dup mul }
|
|
{sin abs sqrt }
|
|
{cos abs sqrt }
|
|
] def
|
|
|
|
/range { /top exch def /bottom exch def /number exch def
|
|
% number is between -1 and 1
|
|
/rangesize top bottom sub def
|
|
number 1 add 2 div
|
|
% number is now between 0 and 1
|
|
rangesize mul
|
|
bottom add
|
|
} def
|
|
|
|
/drawone {
|
|
/radius
|
|
width height lt {width 3 div} {height 3 div} ifelse
|
|
def
|
|
seed srand
|
|
0 0 moveto
|
|
/origmatrix [ 0 0 0 0 0 0 ] currentmatrix def
|
|
[ % xstep function ystep function2 add 0.4 1.3 range
|
|
1
|
|
ystep function xstep function add -0.25 0.25 range
|
|
ystep function3 xstep function2 add -0.5 0.5 range
|
|
% xstep function4 ystep function mul 0.4 1.3 range
|
|
1
|
|
0
|
|
0
|
|
]
|
|
concat
|
|
twist {twistdeg rotate} if
|
|
part colorfill
|
|
origmatrix setmatrix
|
|
rainbow
|
|
{/fillhue fillhue rainrange xtimes ytimes mul div add dup 1 gt {1 sub} if def}
|
|
if
|
|
|
|
} def
|
|
|
|
/notdrawone {
|
|
seed srand
|
|
twist {/twistdeg rand 360 mod def} if
|
|
nnrand {/nn rand 6 mod 3 add def} if
|
|
/x1 rand width 3 div cvi mod width 8 div add def
|
|
/y1 rand height 3 div cvi mod height 8 div add def
|
|
rand 3 mod dup 1 eq
|
|
{pop /x2 rand width 2 div cvi mod def
|
|
/y2 rand height 2 div cvi mod def}
|
|
{ 2 eq
|
|
{/x2 y1 def /y2 x1 def}
|
|
{/x2 y1 width mul height div def /y2 x1 height mul width div def}
|
|
ifelse
|
|
}
|
|
ifelse
|
|
/radius width height gt {width} {height} ifelse 2.5 div def
|
|
/stripe rand width 10 div cvi mod 2 add def
|
|
starcompensate { /stripe stripe 2 mul def /radius radius 10 nn div mul def } if
|
|
/i 1 def
|
|
/repeats radius stripe div cvi 1 add def
|
|
/nnincr 1 def
|
|
repeats {
|
|
colorvary {colorfam colorway} if
|
|
/i i 1 add def
|
|
/radius radius stripe sub def
|
|
|
|
} repeat
|
|
} def
|
|
|
|
|
|
/page {
|
|
clippath pathbbox /ury exch def /urx exch def /lly exch def /llx exch
|
|
def
|
|
/pagewidth urx llx sub 36 72 mul min def
|
|
/pageheight ury lly sub 36 72 mul min def
|
|
0 0 moveto
|
|
llx lly translate
|
|
/outerwidth
|
|
pagewidth inwidth div
|
|
def
|
|
/outerheight
|
|
pageheight inheight div
|
|
def
|
|
/width
|
|
outerwidth xtimes div
|
|
def
|
|
/height
|
|
outerheight ytimes div
|
|
def
|
|
|
|
|
|
|
|
/size
|
|
width height gt {width} {height} ifelse
|
|
def
|
|
inwidth {
|
|
inheight {
|
|
|
|
/seed rand def
|
|
/hue rand 999 mod 1000 div def
|
|
colorway colorfam
|
|
/x 1 def /y 1 def
|
|
nnrand {/nn rand 6 mod 3 add def} if
|
|
/twistdeg rand 360 mod def
|
|
|
|
/function functionarray rand functionarray length mod get def
|
|
/function2 functionarray rand functionarray length mod get def
|
|
/function3 functionarray rand functionarray length mod get def
|
|
/function4 functionarray rand functionarray length mod get def
|
|
|
|
/xrange [ 90 180 270 360 180 360 ] rand 6 mod get def
|
|
/yrange [ 90 180 270 360 180 360 ] rand 6 mod get def
|
|
initclip
|
|
newpath
|
|
0 0 moveto
|
|
outerwidth 0 rlineto
|
|
0 outerheight rlineto
|
|
outerwidth neg 0 rlineto
|
|
backfill
|
|
|
|
xtimes {
|
|
ytimes{
|
|
/y y 1 add def
|
|
width 2 div height 2 div translate
|
|
drawone
|
|
width 2 div neg height 2 div neg translate
|
|
0 height translate
|
|
} repeat
|
|
|
|
/y 1 def
|
|
/x x 1 add def
|
|
width height ytimes mul neg translate
|
|
|
|
} repeat
|
|
|
|
width xtimes mul neg outerheight translate
|
|
} repeat
|
|
outerwidth outerheight inheight mul neg translate
|
|
} repeat
|
|
|
|
} def
|
|
|
|
page showpage
|
|
clear cleardictstack
|
|
vasarelysave restore
|