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%D \module
%D [ file=m-asymptote,
%D version=2017.03.24,
%D title=\CONTEXT\ Extra Modules,
%D subtitle=Asymptote,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
% \enabletrackers[sandbox,buffers.run]
%D Currently asymptote assumes \MKII\ but better is to only support \MKIV. A problem
%D is that asymptote has this hard coded while for \CONTEXT\ it's better to stick to
%D something simple:
%D
%D \starttyping
%D \starttext
%D
%D \startasymptotepage
%D some label
%D \stopasymptotepage
%D
%D \startasymptotepage
%D some label
%D \stopasymptotepage
%D
%D \stoptext
%D \stoptyping
%D
%D Which is then run with:
%D
%D \starttyping
%D context --nonstopmode --purge somefile.tex
%D \stoptyping
%D
%D For the moment add "settings.prc=true;" to a graphic that is meant to produce that
%D format. See end of file for some examples.
\registerctxluafile{m-asymptote}{}
\unprotect
\unexpanded\def\asymptote
{\dodoubleempty\module_asymptote}
\unexpanded\def\module_asymptote[#1][#2]%
{\iffirstargument
\begingroup
\getdummyparameters[#2]%
\edef\lasttypesetbuffer{\ctxlua{moduledata.asympote.process("asymptote:#1","\dummyparameter\c!type")}}%
\externalfigure
[\lasttypesetbuffer]%
[\c!controls=\lasttypesetbuffer,#2]%
\endgroup
\fi}
\unexpanded\def\startasymptote[#1]%
{\begingroup
\dostartbuffer[asymptote:#1][startasymptote][stopasymptote]}
\unexpanded\def\stopasymptote
{\endgroup}
\definefittingpage
[asymptotepage]
[\c!align=\v!normal]
\protect
\continueifinputfile{m-asymptote.mkiv}
\starttext
\startasymptote[demo-1]
settings.prc=true;
import graph3;
import palette;
size(6cm,6cm);
size3(5cm,0);
currentprojection=orthographic(3,-6,12);
currentlight=light(8,10,2);
real g(pair z) {return 1-z.x^2-z.y^2;}
real f(pair z) {return -2z.x+2;}
real x(real t) {return t;}
real y(real t) {return 0;}
real z(real t) {return 1-t^2;}
real a(real t) {return 1;}
real b(real t) {return t;}
real c(real t) {return -t^2;}
path3 p=graph(x,y,z,-2,2,operator ..);
path3 o=graph(a,b,c,-2,2,operator ..);
surface r=surface(f,(0,-1),(2,1),nx=3,Spline);
surface s=surface(g,(-2,-2),(2,2),nx=5,Spline);
path3 q=(-2,-2,-7)--(2,-2,-7)--(2,2,-7)--(-2,2,-7)--cycle;
draw(q);
draw(p,blue+thick(),Arrow3);
draw(o,blue+thick(),Arrow3);
draw(s,lightgray+opacity(0.8),nolight,meshpen=black+thick());
draw(r,lightgray+opacity(0.8),nolight,meshpen=black+thick());
draw((1,0,0)--(2,0,-2),black,Arrow3);
draw((1,0,0)--(1,1,0),black,Arrow3);
\stopasymptote
\startasymptote[demo-2]
size(6cm,6cm);
fill((1cm,2cm)--(3cm,3cm)--(4cm,0cm)--cycle);
\stopasymptote
% see end of grph-inc.mkiv for some more options:
\startluaparameterset[demo-1]
toolbar = true,
tree = false,
view = 'ortho'
\stopluaparameterset
\asymptote[demo-1][type=prc,width=5cm,height=5cm,frame=on,display=yes,controls=yes,preview=yes]
\asymptote[demo-2][type=pdf,width=8cm,frame=on]
% \typebuffer[asymptote:demo-1]
% \startasymptotepage
% test
% \stopasymptotepage
\stoptext
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