# [NTG-context] About macro numberstriped ()

Fabrice Couvreur fabrice1.couvreur at gmail.com
Sun Oct 2 11:49:32 CEST 2022

Not only, it is also true with the code below :

\startMPcode
path p, q, r, b ;
p  := unitsquare xyscaled (4cm,4cm) ;
z[0] = (2cm,0cm) ;
z[1] = (2cm,4cm) ;
z[2] = (0cm,2cm) ;
q := llcorner p--z[0]--z[1]--z[2]--cycle ;
r := unitsquare xyscaled (1cm,1cm) shifted(0,3cm) ;
b := (0cm,0cm) -- lrcorner r -- lrcorner p -- cycle;

draw r anglestriped (1,45,2) withcolor green;
draw b anglestriped (1,45,2) withcolor green;

draw b withcolor darkgreen;
draw r withcolor darkgreen;
draw p;

label.llft("B", p) ;
label.lrt("C", p) ;
label.ulft("A", p) ;
label.urt("D", p) ;
label.urt("F", lrcorner r) ;
label.lft("E", llcorner r) ;
label.top("G", urcorner r) ;

\stopMPcode

Le dim. 2 oct. 2022 à 11:21, Floris van Manen via ntg-context <
ntg-context at ntg.nl> a écrit :

>
>
> On 02/10/2022 10:55, Fabrice Couvreur via ntg-context wrote:
> > Initially, there was a bug with maro numberstriped() and Hans suggested
> > another sensible approach to me, but you don't get the same shape of the
> > hatches depending on the dimensions of the squares.
>
> some unexpected side effect show up when the unitsquare is xyscaled to a
> rectangle like (2.5cm,1cm)
> it seems related to the angle chosen
>
> e.g.
>
>
>
> \startMPcode
>
> path p, q, r, b ;
> p  := unitsquare xyscaled (4cm,4cm) ;
> q := unitsquare xyscaled (1cm,1cm) shifted(0,3cm) ;
> r := unitsquare xyscaled (2.5cm,1cm) shifted(1cm,3cm) ;
> b := unitsquare xyscaled (3cm,3cm) shifted(1cm,0) ;
>
> draw r anglestriped (1,35,2) withcolor red;
> draw q anglestriped (1,35,2) withcolor green;
> draw b anglestriped (1,35,2) withcolor cyan;
> draw p;
> draw q;
> draw b;
> draw r;
>
> label.llft("D", p) ;
> label.lrt("C", p) ;
> label.ulft("A", p) ;
> label.urt("B", p) ;
> label.urt("P", lrcorner r) ;
> label.lft("Q", llcorner r) ;
> label.top("M", urcorner r) ;
>
> \stopMPcode
>
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