Re: [NTG-context] Rotating an image

15 Oct 2015


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

2015-10-15 17:27 GMT+02:00 Wolfgang Schuster :
...
Fabrice Couvreur 
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
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