* Custom metaobj object in context [not found] <mailman.1.1279015202.10306.ntg-context@ntg.nl> @ 2010-07-13 16:01 ` Stefan Müller 2010-07-13 19:03 ` Hans Hagen 0 siblings, 1 reply; 5+ messages in thread From: Stefan Müller @ 2010-07-13 16:01 UTC (permalink / raw) To: ntg-context Hi, I just tried to build my own object in metaobj but for some reason I cannot figure out it does not work. I tried the example from the metaobj manual in a tex document (it works in a metapost file): \startuseMPgraphic{objecttest} vardef newSegment@#= assignObj(@#,"Segment"); ObjPoint a,b; ObjCode "@#b-@#a=(1cm,2cm)"; enddef; \stopuseMPgraphic When processing this with context (MkIV) I get ! Illegal parameter number in definition of \@MPG@objecttest. <to be read again> = <argument> vardef newSegment@##= assignObj(@##,"Segment"); ObjPoint a,b; Ob... \dostartuseMPgraphic ...leuseMPgraphic {#1}{#2}{#3 }} l.7 \stopuseMPgraphic My first wild guess is that it has something to do with the "evil" @-symbol. But even if this is the case I don't know what to do to fix this. Any help appreciated and thank you very much in advance. Stefan. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Custom metaobj object in context 2010-07-13 16:01 ` Custom metaobj object in context Stefan Müller @ 2010-07-13 19:03 ` Hans Hagen 2010-07-14 11:16 ` Stefan Müller 0 siblings, 1 reply; 5+ messages in thread From: Hans Hagen @ 2010-07-13 19:03 UTC (permalink / raw) To: mailing list for ConTeXt users; +Cc: Stefan Müller On 13-7-2010 6:01, Stefan Müller wrote: > Hi, > > I just tried to build my own object in metaobj but for some reason I > cannot figure out it does not work. I tried the example from the metaobj > manual in a tex document (it works in a metapost file): > > \startuseMPgraphic{objecttest} > vardef newSegment@#= > assignObj(@#,"Segment"); > ObjPoint a,b; > ObjCode "@#b-@#a=(1cm,2cm)"; > enddef; > \stopuseMPgraphic > > When processing this with context (MkIV) I get > > ! Illegal parameter number in definition of \@MPG@objecttest. > <to be read again> > = > <argument> vardef newSegment@##= > assignObj(@##,"Segment"); ObjPoint a,b; Ob... > \dostartuseMPgraphic ...leuseMPgraphic {#1}{#2}{#3 > }} > l.7 \stopuseMPgraphic > > My first wild guess is that it has something to do with the "evil" > @-symbol. But even if this is the case I don't know what to do to fix > this. Any help appreciated and thank you very much in advance. no, more with # being special to tex's parser \string# or \# will probably do ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Custom metaobj object in context 2010-07-13 19:03 ` Hans Hagen @ 2010-07-14 11:16 ` Stefan Müller 2010-07-15 5:21 ` Aditya Mahajan 0 siblings, 1 reply; 5+ messages in thread From: Stefan Müller @ 2010-07-14 11:16 UTC (permalink / raw) To: mailing list for ConTeXt users On 13.07.2010 21:03, Hans Hagen wrote: > On 13-7-2010 6:01, Stefan Müller wrote: >> Hi, >> >> I just tried to build my own object in metaobj but for some reason I >> cannot figure out it does not work. I tried the example from the metaobj >> manual in a tex document (it works in a metapost file): >> >> \startuseMPgraphic{objecttest} >> vardef newSegment@#= >> assignObj(@#,"Segment"); >> ObjPoint a,b; >> ObjCode "@#b-@#a=(1cm,2cm)"; >> enddef; >> \stopuseMPgraphic >> >> When processing this with context (MkIV) I get >> >> ! Illegal parameter number in definition of \@MPG@objecttest. >> <to be read again> >> = >> <argument> vardef newSegment@##= >> assignObj(@##,"Segment"); ObjPoint a,b; Ob... >> \dostartuseMPgraphic ...leuseMPgraphic {#1}{#2}{#3 >> }} >> l.7 \stopuseMPgraphic >> >> My first wild guess is that it has something to do with the "evil" >> @-symbol. But even if this is the case I don't know what to do to fix >> this. Any help appreciated and thank you very much in advance. > > no, more with # being special to tex's parser > > \string# or \# will probably do Thank you Hans for the fast answer. Adding \string in front of every # led to basically the same error message (only difference: "@\sting ##" instead of "@##"). When using \# instead of # in the vardef the small example from above works (even with \placefigure added). But there is still a problem: \starttext \startuseMPgraphic{objecttest} vardef newSegment@\#= assignObj(@\#,"Segment"); ObjPoint a,b; ObjCode "@\#b-@\#a=(1cm,2cm)"; enddef; newSegment.s; % create an instance \stopuseMPgraphic \placefigure[here][fig:objecttest]{My object}{\useMPgraphic{objecttest}} \stoptext now produces the metapost error ! Isolated expression. <to be read again> ( newSegment->begingroup.assignObj( (SUFFIX2),"Segment");ObjPoint.a,b;ObjCode"@... <to be read again> ; <*> ... "@#b-@#a=(1cm,2cm)"; enddef; newSegment.s; Without \placefigure there is no error at all. (Maybe then metapost doesn't even run?) And I again have no clue what's going on. Thanks for your help in advance. Stefan. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Custom metaobj object in context 2010-07-14 11:16 ` Stefan Müller @ 2010-07-15 5:21 ` Aditya Mahajan 0 siblings, 0 replies; 5+ messages in thread From: Aditya Mahajan @ 2010-07-15 5:21 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1.1: Type: text/plain, Size: 1131 bytes --] On Wed, Jul 14, 2010 at 7:16 AM, Stefan Müller <warrence.stm@gmx.de> wrote: > On 13.07.2010 21:03, Hans Hagen wrote: > >> On 13-7-2010 6:01, Stefan Müller wrote: >> >>> Hi, >>> >>> I just tried to build my own object in metaobj but for some reason I >>> cannot figure out it does not work. I tried the example from the metaobj >>> manual in a tex document (it works in a metapost file): >>> >>> \startuseMPgraphic{objecttest} >>> vardef newSegment@#= >>> assignObj(@#,"Segment"); >>> ObjPoint a,b; >>> ObjCode "@#b-@#a=(1cm,2cm)"; >>> enddef; >>> \stopuseMPgraphic >>> >> Can you post a complete metapost file that gives some output.I tried the following mp file: input metaobj; vardef newSegment@#= assignObj(@#,"Segment"); ObjPoint a,b; ObjCode "@#b-@#a=(1cm,2cm)"; enddef; beginfig(1) ; newSegment.s; % create an instance endfig ; end; but running it through metapost gives me an empty file: %!PS %%BoundingBox: 0 0 0 0 %%HiResBoundingBox: 0 0 0 0 %%Creator: MetaPost 1.208 %%CreationDate: 2010.07.15:0119 %%Pages: 1 %%BeginProlog %%EndProlog %%Page: 1 1 showpage %%EOF Aditya [-- Attachment #1.2: Type: text/html, Size: 1748 bytes --] [-- Attachment #2: Type: text/plain, Size: 486 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
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* Re: Custom metaobj object in context [not found] <mailman.2543.1279171292.4277.ntg-context@ntg.nl> @ 2010-07-16 7:42 ` Stefan Müller 0 siblings, 0 replies; 5+ messages in thread From: Stefan Müller @ 2010-07-16 7:42 UTC (permalink / raw) To: ntg-context On 15.07.2010 07:21, Aditya Mahajan wrote: > Can you post a complete metapost file that gives some output.I tried the > following mp file: > input metaobj; Now that's a good start... It didn't occur to me, that I need to "input metaobj" as in your example. Thank you very much for that hint. My examples now work in ConTeXt with \startMPinclusions input metaobj; \stopMPinclusions I assume posting the complete example is needless now. Possibly, it might have been a good idea to drop a note on this in the metaobj manual, as it is not working without that input line. Stefan ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-07-16 7:42 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <mailman.1.1279015202.10306.ntg-context@ntg.nl> 2010-07-13 16:01 ` Custom metaobj object in context Stefan Müller 2010-07-13 19:03 ` Hans Hagen 2010-07-14 11:16 ` Stefan Müller 2010-07-15 5:21 ` Aditya Mahajan [not found] <mailman.2543.1279171292.4277.ntg-context@ntg.nl> 2010-07-16 7:42 ` Stefan Müller
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