[metapost] fullcircle in metapost language

Karel Horak horakk at math.cas.cz
Fri Oct 19 19:17:32 CEST 2007

José Carlos Santos napsal(a):
>> as if the circle could not be scaled and shifted ! Why ? Did
>> something change in language specification ?
> I don't know, but it will accept
>     cercle = fullcircle scaled (2*abs(As-I)) shifted I;

Syntactic rules did not changed:

cercle = fullcircle scaled 2*abs(As-I) shifted I;

is wrong, but

cercle = fullcircle scaled 2abs(As-I) shifted I;

(without not necessary star!) is OK, as of course

cercle = fullcircle scaled (2*abs(As-I)) shifted I;

with parentheses.

All the best,
Karel Horak

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