In \starttext \startTEXpage \startlua metapost.process("metafun",{"beginfig(1);", "a=.7in; b=0.5in;", "z0=(0,0); z1=(a,0); z2=(0,b);", "z0=.5[z1,z3]=.5[z2,z4];", "draw z1..z2..z3..z4..cycle;", "drawarrow z0..z1;", "drawarrow z0..z2;", "label.top(btex $a$ etex, .5[z0,z1]);", "label.lft(btex $b$ etex, .5[z0,z2]);", "endfig;"}) \stoplua \stopTEXpage \stoptext there are no labels, but I believe that it's wrong. -- luigi it's new . it's powerful . it's luatex . http://www.luatex.org
luigi scarso wrote:
In
\starttext \startTEXpage \startlua metapost.process("metafun",{"beginfig(1);", "a=.7in; b=0.5in;", "z0=(0,0); z1=(a,0); z2=(0,b);", "z0=.5[z1,z3]=.5[z2,z4];", "draw z1..z2..z3..z4..cycle;", "drawarrow z0..z1;", "drawarrow z0..z2;", "label.top(btex $a$ etex, .5[z0,z1]);", "label.lft(btex $b$ etex, .5[z0,z2]);", "endfig;"}) \stoplua \stopTEXpage \stoptext
there are no labels, but I believe that it's wrong.
The MPlib library embedded in luatex does not actually support btex .. etex blocks. It is planned to intercept such blocks in the mkiv lua code, but for now, just use textext(). Best wishes, Taco
Taco Hoekwater wrote:
luigi scarso wrote:
In
\starttext \startTEXpage \startlua metapost.process("metafun",{"beginfig(1);", "a=.7in; b=0.5in;", "z0=(0,0); z1=(a,0); z2=(0,b);", "z0=.5[z1,z3]=.5[z2,z4];", "draw z1..z2..z3..z4..cycle;", "drawarrow z0..z1;", "drawarrow z0..z2;", "label.top(btex $a$ etex, .5[z0,z1]);", "label.lft(btex $b$ etex, .5[z0,z2]);", "endfig;"}) \stoplua \stopTEXpage \stoptext
there are no labels, but I believe that it's wrong.
The MPlib library embedded in luatex does not actually support btex .. etex blocks.
It is planned to intercept such blocks in the mkiv lua code, but for now, just use textext().
why not use \starttext \startMPpage a=.7in; b=0.5in; z0=(0,0); z1=(a,0); z2=(0,b); z0=.5[z1,z3]=.5[z2,z4]; draw z1..z2..z3..z4..cycle; drawarrow z0..z1; drawarrow z0..z2; label.top(btex $a$ etex, .5[z0,z1]); label.lft(btex $b$ etex, .5[z0,z2]); endfig; \stopMPpage \stoptext this uses: metapost.graphic(mpsformat,str,preamble) which does intercept the btex/etex ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
Ok. In next example, f>0 is hide \starttext \startTEXpage\startMPcode %beginfig(2); h=2in; w=2.7in; path p[], q[], pp; for i=1.5,2,4: ii := i**2; p[i] = (w/ii,h){1/ii,-1}...(w/i,h/i)...(w,h/ii){1,-1/ii}; endfor for i=.5,1.5: q[i] = origin..(w,i*h) cutafter p1.5; endfor pp = buildcycle(q0.5, p2, q1.5, p4); fill pp withcolor .8white; z0=center pp; picture lab; lab=thelabel(btex $f>0$ etex, z0); unfill bbox lab; draw lab; draw q0.5; draw p2; draw q1.5; draw p4; makelabel.top(btex $P$ etex, p2 intersectionpoint q0.5); makelabel.rt(btex $Q$ etex, p2 intersectionpoint q1.5); %endfig; \stopMPcode\stopTEXpage \stoptext -- luigi it's new . it's powerful . it's luatex . http://www.luatex.org
participants (3)
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Hans Hagen -
luigi scarso -
Taco Hoekwater