Hi Wolfgang,
Why is it necessary to add currentpicture := nullpicture ; ?
Thank you,
Fabrice


2015-10-15 17:27 GMT+02:00 Wolfgang Schuster <schuster.wolfgang@gmail.com>:
12. Oktober 2015 um 20:58
A small question not directly related context.
I would like to turn my image 15 degrees.
Thanks,
Fabrice

picture pic ;
pic := currentpicture ;
u := 0.5cm ;
z1 = origin ;
z2 = (9u, 0) ;
path p ;
p := fullcircle scaled 14u ;
path q ;
q := p shifted (9u,0) ;
pair A ;
A := p intersectionpoint q ;
path a ;
a := z1 -- z2 ;
path b ;
b := z1 -- A ;
path c ;
c := z2 -- A ;
draw a ;
draw b ;
draw c ;
pair I ;
pair J ;
I := point 0.6 of b ;
J := point 0.6 of c ;
draw I -- J ;
pair L ;
L := point 0.8 of b ;
label.top("A", A) ;
label.lrt("C", z2) ;
label.llft("B", origin) ;
label.ulft("I", I) ;
label.urt("J", J) ;
label.ulft("$x$", L) ;
draw pic rotated 15 ;


\startMPpage
picture pic ;

u := 0.5cm ;
z1 = origin ;
z2 = (9u, 0) ;
path p ;
p := fullcircle scaled 14u ;
path q ;
q := p shifted (9u,0) ;
pair A ;
A := p intersectionpoint q ;
path a ;
a := z1 -- z2 ;
path b ;
b := z1 -- A ;
path c ;
c := z2 -- A ;
draw a ;
draw b ;
draw c ;
pair I ;
pair J ;
I := point 0.6 of b ;
J := point 0.6 of c ;
draw I -- J ;
pair L ;
L := point 0.8 of b ;
label.top("A", A) ;
label.lrt("C", z2) ;
label.llft("B", origin) ;
label.ulft("I", I) ;
label.urt("J", J) ;
label.ulft("$x$", L) ;
pic := currentpicture ;
currentpicture := nullpicture;
draw pic rotated 15 ;
\stopMPpage

You can also rotate the image when you place it in your document with \rotate[rotation=15]{...}.

Wolfgang

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________