Fil:Triple-Spiral-Symbol-filled.png
Triple-Spiral-Symbol-filled.png (640 × 600 piksler, filstørrelse: 13 KB, MIME-type: image/png)
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Beskrivelse
Version of the Triple Spiral symbol (see Image:Triple-Spiral-Symbol.png) with the area enclosed between the spirals filled in (and mirror-reflected with respect to Image:Triple-Spiral-Symbol.png). For a less elaborate triskelion symbol, see Image:Triskele-Symbol-spiral.png or Image:Triskele-Symbol-spiral-five-thirds-turns.png -- for a more elaborate version, see Image:Triple-Spiral-Symbol-4turns-filled.png. For "wheeled" forms of the spiral triskelion/triple spiral symbol, see Image:Wheeled-Triskelion-basic.png , Image:Roissy triskelion iron ring signet.png , Image:Triple-spiral-wheeled-simple.png , or Image:Triskelion-spiral-threespoked-inspiral.png . For a spiral triskelion with a hollow triangle in the center, see Image:Triskele-hollow-triangle.png . For versions of a triple-spiral labyrinth, see Image:Triple-Spiral-labyrinth.png and Image:Triple-Spiral-labyrinth-variant.png .
Generated by means of the following PostScript code:
%! /archimdouble{ %%%%%%%%%%%%%%%% % PostScript program to display an Archimedean spiral by approximating % it with Bezier curves. Can display a double spiral (two spirals % rotated by 180 degrees with respect to each other). %%% Parameters: % centerx = horizontal coordinate of center of spiral % centery = vertical coordinate of center of spiral % rotf = degrees to rotate /sepwid 110 def % width separating successive turnings of spiral % (half this if double spiral is selected) % incrm = insert a curve point every these degrees /sweeps swp2 def % number of 360 degree turnings to show % double - 0 to display single spiral, else double %%% Procedures: /pi 3.1415926535898 def/radians 57.295779513082 def /sepwid sepwid pi div 2 div def gsave centerx centery translate rotf rotate /aspiral{/prevbezy 0 def/first 1 def lower incrm sweeps 360 mul{7{dup}repeat phase add cos/costh exch def phase add sin/sinth exch def costh mul radians div/thcosth exch def sinth mul radians div/thsinth exch def thcosth sepwid mul/x exch def thsinth sepwid mul/y exch def /slope sinth thcosth add costh thsinth sub div def sinth 0 gt sinth 0 eq costh -1 eq and or{/flag -1 def}{/flag 1 def}ifelse /A exch def A 49.29348 lt A 180 gt A 196.273450852 lt and A 360 gt A 368.8301 lt and A 540 gt A 545.9907 lt and A 720 gt A 724.5217 lt and A 900 gt A 903.6281968 lt and or or or or or{/flag flag neg def}if incrm sub 3{dup}repeat phase add cos sepwid mul mul radians div /prevx exch def phase add sin sepwid mul mul radians div /prevy exch def incrm add 3{dup}repeat phase add cos sepwid mul mul radians div /nextx exch def phase add sin sepwid mul mul radians div /nexty exch def /prevdist x prevx sub dup mul y prevy sub dup mul add sqrt pi div def /nextdist x nextx sub dup mul y nexty sub dup mul add sqrt pi div def /normaliz slope slope mul 1 add sqrt def 0 eq{0 0 moveto/prevbezx phase cos nextdist mul def/first 0 def }{first 1 eq{x y moveto/first 0 def}{prevbezx prevbezy x 1 flag mul normaliz div prevdist mul sub y slope flag mul normaliz div prevdist mul sub x y curveto}ifelse /prevbezx x 1 flag mul normaliz div nextdist mul add def /prevbezy y slope flag mul normaliz div nextdist mul add def} ifelse} for stroke}def /phase 0 def aspiral %%% If different sweeps parameter for second spiral, define here: /sweeps 2.67 def %%% double 0 ne{/phase 180 def aspiral}if grestore %%%%%%%%%%%%%%%% }def gsave 618.5 0 translate -.4875 dup neg scale %%% decrease to .47 to fit on A4-size page -2 rotate /lower 0 def/double 1 def/swp2 3 def/incrm 15 def /centerx 304 def/centery 550 def/rotf 0 def archimdouble /centerx 927.334 def/centery 550 def/rotf 120 def archimdouble /centerx 615.667 def/centery 1089.823 def/rotf 240 def archimdouble /lower 1103.4 def/double 0 def/swp2 1117 360 div def/incrm 13.5 def /centerx 304 def/centery 550 def/rotf 0 def archimdouble /centerx 927.334 def/centery 550 def/rotf 120 def archimdouble /centerx 615.667 def/centery 1089.823 def/rotf 240 def archimdouble grestore showpage %EOF
Lisensiering
Public domainPublic domainfalsefalse |
Jeg, opphavsrettensholderen til dette verket, frigir dette verket til allmennheten. Dette gjelder på verdensbasis. I enkelte land kan dette være juridisk umulig. I så fall: Jeg gir hvem som helst retten til å bruke dette verket for ethvert formål, uten noen vilkår, med mindre slike vilkår kreves ved lov. |
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Dato/klokkeslett | Miniatyrbilde | Dimensjoner | Bruker | Kommentar | |
---|---|---|---|---|---|
nåværende | 21. nov. 2005 kl. 15:25 | 640 × 600 (13 KB) | AnonMoos | correcting slight error | |
20. nov. 2005 kl. 23:57 | 640 × 600 (13 KB) | AnonMoos | larger better version of image | ||
4. nov. 2005 kl. 10:03 | 600 × 564 (12 KB) | AnonMoos | Version of the Triple Spiral symbol (see Image:Triple-Spiral-Symbol.png) with the area enclosed between the spirals filled in (and mirror-reflected with respect to Image:Triple-Spiral-Symbol.png). Category:Religious symbols |
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