Image:Butterfly theorem.svg

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Butterfly_theorem.svg (Fichier SVG, résolution de 528 × 483 pixels, taille : 16 Kio)

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Contents

[edit] Summary

Illustration for article en:Butterfly theorem. Created by Gustavb using Eukleides

[edit] Licensing

I, the copyright holder of this work, have published or hereby publish it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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[edit] Source

[edit] Butterfly_theorem.euk

box(-1.2,-1.1,1.2,1.1,2.2)
thickness(1.2)

E = circle(point(0,0),1)

A = point(E,120:)
C = point(E,60:)
P = point(E,170:)
D = point(E,210:)
B = point(E,330:)

M = intersection(line(C,D),line(A,B))
G = line(M, P)
Q P intersection(G, E)
X = intersection(line(A,D),line(P,Q))
Y = intersection(line(C,B),line(P,Q))

draw(P,Q)
draw(E)
draw(A,D,C,B,A)
draw("$A$",A,.05,120:)
draw("$C$",C,.05,50:)
draw("$P$",P,.05,190:)
draw("$Q$",Q,.05,20:)
draw("$D$",D,.05,210:)
draw("$B$",B,.05,310:)
draw("$M$",M,.1,90:)
draw("$X$",X,.05,135:)
draw("$Y$",Y,.05,60:)

mark(B,M,C,simple,.4); mark(Q,M,C,simple,.46)
mark(A,M,D,simple,.4); mark(P,M,D,simple,.46)
mark(C,D,A,simple,.5); mark(C,D,A,simple,.44); mark(C,D,A,simple,.38)
mark(C,B,A,simple,.5); mark(C,B,A,simple,.44); mark(C,B,A,simple,.38)

[edit] Instructions

  1. Create EPS
    $ euk2eps Butterfly_theorem.euk
    
  2. Outline fonts
    $ eps2eps -dNOCACHE Butterfly_theorem.eps Butterfly_theorem2.eps
    
  3. Fix bounding box
    $ ps2epsi Butterfly_theorem2.eps Butterfly_theorem.eps
    
  4. Convert to Sketch
    $ pstoedit -f sk Butterfly_theorem.eps Butterfly_theorem.sk
    
  5. Convert to SVG
    $ skconvert Butterfly_theorem.sk Butterfly_theorem.svg
    
  6. Fix Butterfly_theorem.svg with Inkscape

Historique du fichier

Cliquer sur une date et une heure pour voir le fichier tel qu’il était à ce moment-là

Date et heureDimensionsUtilisateurCommentaire
actuel10 mars 2006 à 21:30528×483 (16 Kio)Gustavb (stroke tweak)
7 mars 2006 à 01:30528×483 (16 Kio)Gustavb (== Summary == Illustration for article en:Butterfly theorem. Created by Gustavb using [http://www.eukleides.org/ Eukleides] == Licensing == {{GFDL-self}} == Source == === Butterfly_theorem.euk === <pre> box(-1.2,-1.1,1.2,1.1,2.)

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