Hi all, I have a file which contains the lines below: I can typeset it and obtain a correct result with mkii, but not with mkiv (the second buffer named "axes-1" does not result in a MetaPost graphic when one says \processMPbuffer[axes-1]). The file and the resulting PDF can be found on http://www.kavian.fr/tex/bug-mkiv Thanks in advance for any help. Best regards: OK %%%%%% begin bug-metapost.tex \setupcolors[state=start] \starttext \startbuffer[axes-1] textextoffset := ExHeight ; numeric u ; u := .5cm ; vardef arrowheadonpath (expr p, s) = save autoarrows ; boolean autoarrows ; autoarrows := true ; set_ahlength(scaled ahfactor) ; % arrowhead p if s<1 : cutafter (point (s*arclength(p)+.5ahlength) on p) fi enddef ; path xox ; xox := (-u,0)--(8u,0) ; path yoy ; yoy := (0,-u)--(0,7u) ; draw xox withcolor blue ; draw yoy withcolor blue ; ahfactor := 4 ; % default is 2.5 fill arrowheadonpath(xox,1) withcolor .625blue ; % try .25 fill arrowheadonpath(yoy,1) withcolor .625blue ; % try .25 \stopbuffer \startbuffer[chemin-1] textextoffset := ExHeight ; numeric u ; u := .5cm ; z1 = (5u,0) ; z2 = z1 rotated 60 ; z11 = z1 rotated 15 ; z12 = z1 rotated 30 ; z13 = z1 rotated 45 ; z0 = (2u,0) rotated 30 ; path gamma ; gamma := (0,0)--(5u,0) ; draw gamma withpen pencircle scaled .4mm withcolor .625yellow ; path gammaR ; gammaR := z1..z11..z12..z13..z2 ; draw gammaR withpen pencircle scaled .4mm withcolor .625yellow ; dotlabel.bot (btex \switchtobodyfont[10pt] \strut $R$ etex, z1) ; path gammaRR ; gammaRR := z2--(0,0) ; draw gammaRR withpen pencircle scaled .4mm withcolor .625yellow ; dotlabel.top (btex \switchtobodyfont[10pt] \strut $R{\rm e}^{2{\rm i} \pi/n}$ etex , z2) ; dotlabel.rt (btex \switchtobodyfont[10pt] \strut ${\rm e}^{{\rm i}\pi/ n}$ etex , z0) ; label.rt (btex \switchtobodyfont[10pt] \strut $\Gamma_{R}$ etex , z11) ; fill arrowheadonpath(gamma,.4) withcolor .625yellow ; fill arrowheadonpath(gammaR,.4) withcolor .625yellow ; fill arrowheadonpath(gammaRR,.4) withcolor .625yellow ; \stopbuffer This file has been typeset on \currentdate{} at \currenttime, with \doifmodeelse{mkiv} {mkiv, LuaTeX revision \luatexrevision, (LuaTeX date stamp \luatexdatestamp)} {mkii, using the command: \type{texexec basic-test.tex}}, ConTeXt version \contextversion. % LuaTeX version \luatexversion, This MetaPost graphic is shown with mkiv: \placefigure[middle][-]{}{\processMPbuffer[chemin-1]} {} \blank but not this one \placefigure[middle][-]{}{\processMPbuffer[axes-1]} {} \blank nor this one \placefigure[middle][-]{}{\processMPbuffer[axes-1,chemin-1]} {} \stoptext
On Wed, 14 Jan 2009, Otared Kavian wrote:
Hi all,
I have a file which contains the lines below: I can typeset it and obtain a correct result with mkii, but not with mkiv (the second buffer named "axes-1" does not result in a MetaPost graphic when one says \processMPbuffer[axes-1]). The file and the resulting PDF can be found on http://www.kavian.fr/tex/bug-mkiv Thanks in advance for any help.
Best regards: OK
I did not run the file, just guessing. In MKIV, by default buffers are not written to disk, so \processMPbuffer does not find any. You can force \startbuffer to write stuff to disk, but a better way would be to modify \processMPbuffer to also search for memory buffers. Aditya
On 14 janv. 09, at 06:51, Aditya Mahajan wrote:
On Wed, 14 Jan 2009, Otared Kavian wrote:
Hi all,
I have a file which contains the lines below: I can typeset it and obtain a correct result with mkii, but not with mkiv (the second buffer named "axes-1" does not result in a MetaPost graphic when one says \processMPbuffer[axes-1]). The file and the resulting PDF can be found on http://www.kavian.fr/tex/bug-mkiv Thanks in advance for any help.
Best regards: OK
I did not run the file, just guessing. In MKIV, by default buffers are not written to disk, so \processMPbuffer does not find any. You can force \startbuffer to write stuff to disk, but a better way would be to modify \processMPbuffer to also search for memory buffers.
Aditya
Thanks Aditya for your explanation, but I must say that it is not convincing because with mkiv one of the buffers is processed with \processMPbuffer, while the other is not… So there must be some other hidden behaviour which has changed between mkii and mkiv. Best regards: OK
Otared Kavian wrote:
Thanks Aditya for your explanation, but I must say that it is not convincing because with mkiv one of the buffers is processed with \processMPbuffer, while the other is not… So there must be some other hidden behaviour which has changed between mkii and mkiv.
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer. Best wishes, Taco
On 14 janv. 09, at 08:57, Taco Hoekwater wrote:
Otared Kavian wrote:
Thanks Aditya for your explanation, but I must say that it is not convincing because with mkiv one of the buffers is processed with \processMPbuffer, while the other is not… So there must be some other hidden behaviour which has changed between mkii and mkiv.
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer.
Best wishes, Taco
Hi Taco, Thanks for finding the problem: indeed as you point out, in the minimal example which I reproduce below, one sees that the comment character % in the \startbuffer[axes-2] part is not interpreted correctly in mkiv: if one puts that character at the end of last line of the buffer the ouput is correct, while if one puts it at the end of other lines the result is "undefined". So for the file I have to typeset right now, I'll remove those nasty "%", but I hope that the problem will be solved in mkiv… By the way, in one of your messages some time ago you said that there is a command \luatexversion but it doesn't exist on my installation: is it removed or I understod wrong? Best wishes: OK %%%%% bug-metapost-1.tex %!TEX TS-program = mkiv \setupcolors[state=start] \starttext \startbuffer[axes-1] numeric u ; u := .5cm ; path xox ; xox := (-u,0)--(8u,0) ; path yoy ; yoy := (0,-u)--(0,7u) ; draw xox withcolor blue ; draw yoy withcolor blue ; \stopbuffer \startbuffer[axes-2] numeric u ; u := .5cm ; path xox ; xox := (-u,0)--(8u,0) ; path yoy ; yoy := (0,-u)--(0,7u) ; draw xox withcolor blue ; % <------ here is the problem draw yoy withcolor blue ; \stopbuffer This file has been typeset on \currentdate{} at \currenttime, with \doifmodeelse{mkiv} {mkiv, LuaTeX revision \luatexrevision, (LuaTeX date stamp \luatexdatestamp)} {mkii, using the command: \type{texexec basic-test.tex}}, ConTeXt version \contextversion. % LuaTeX version \luatexversion, \blank[2*big] This MetaPost graphic is shown correctly with mkiv: \placefigure[middle][-]{}{\processMPbuffer[axes-1]} {} \blank but not this one \placefigure[middle][-]{}{\processMPbuffer[axes-2]} {} \stoptext
On 14 janv. 09, at 09:31, Taco Hoekwater wrote:
Otared Kavian wrote:
By the way, in one of your messages some time ago you said that there is a command \luatexversion but it doesn't exist on my installation: is it removed or I understod wrong?
Try \the\luatexversion, and \luatexrevision.
Best wishes, Taco
Thanks! This works… Best wishes: OK
Otared Kavian wrote:
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer.
core-buf.lua: line 253 return concat(t,separator or "\n") -- "\n" is safer due to comments and such (easier fix than passing "\\n" in meta-ini.mkiv Hans ----------------------------------------------------------------- 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 -----------------------------------------------------------------
Hans Hagen wrote:
Otared Kavian wrote:
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer.
core-buf.lua: line 253
return concat(t,separator or "\n") -- "\n" is safer due to comments and such
(easier fix than passing "\\n" in meta-ini.mkiv
there was some more involved, i'll upload a fixed beta Hans ----------------------------------------------------------------- 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 -----------------------------------------------------------------
On 14 janv. 09, at 11:30, Hans Hagen wrote:
Hans Hagen wrote:
Otared Kavian wrote:
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer. core-buf.lua: line 253 return concat(t,separator or "\n") -- "\n" is safer due to comments and such (easier fix than passing "\\n" in meta-ini.mkiv
there was some more involved, i'll upload a fixed beta
Hans
Thanks… because the fisrst fix implied some unknown reaction when compiling again and did not solve the problem. Best regards: OK
On 14 janv. 09, at 11:30, Hans Hagen wrote:
Hans Hagen wrote:
Otared Kavian wrote:
I will leave it for Hans to figure what exactly goes wrong, but the problem is caused by the comment characters in the axes-1 buffer. core-buf.lua: line 253 return concat(t,separator or "\n") -- "\n" is safer due to comments and such (easier fix than passing "\\n" in meta-ini.mkiv
there was some more involved, i'll upload a fixed beta
Hi Hans, I tested the new beta mkiv ConTeXt version 2009.01.14 11:29 on many of my files having MetaPost, and everything works as expected… Thanks again: OK
participants (4)
-
Aditya Mahajan -
Hans Hagen -
Otared Kavian -
Taco Hoekwater