Présentation de 007.jps

%% PhS

%% 


40 setxunit
-3 7  setxrange
-2.5 4.5 setyrange



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% definition des points

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


/p {1.5} def
/e {0.7} def
/F {0 0} def
/Kx {p e div neg} def
/K {Kx 0} def
/D {Kx -2.2} def
/H1 {-8 0} def
/H2 {8 0} def
/V1 {Kx -3.5} def
/V2 {Kx 5} def


/rhox {settvar t cos e mul neg 1 add 1 exch div p mul t cos mul} def
/rhoy {settvar t cos e mul neg 1 add 1 exch div p mul t sin mul} def







%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% definition d'une couleur

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


/coul1 {120 255 div 70 255 div 9 255 div setrgbcolor} def



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%% tracés

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1.3 setlinewidth
continu
[K F] points
[H1 H2] ligne
[V1 V2] ligne




coul1
0 380 settrange
{rhox} {rhoy} courbeparam

rouge
[F F 1 0 addv] ( ->) ligne
[F F 0 1 addv] ( ->) ligne






%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% texte

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


setTimesItalic
noir
   (K) K [1.5 dup] dltext

rouge
   (F) F [1.5 dup] dtext


noir
<latex>
$ \mathcal{D} $
</latex>
D [1.5 dup] ultexlabel


rouge
<latex>
$ \vec{\imath} $
</latex>
F 0.8 -0.2 addv [1.5 dup] cctexlabel


<latex>
$ \vec{\jmath} $
</latex>
F -0.2 0.7 addv [1.5 dup] cctexlabel


noir
<latex>
\fbox{$ \rho(\theta)=\displaystyle\frac{p}{1-e\cos(\theta)} $}
</latex>
4 3.5 [1.5 dup] cctexlabel