[NTG-context] SVG support

Hans Hagen pragma at wxs.nl
Thu Dec 6 10:47:45 CET 2007


Zeus Gómez Marmolejo wrote:
> I've done some tests with "rlxtools" and I've found that the conversion from SVG 
> to PDF is done really bad now. It passes through PS (with the inkscape command 
> line) and then the ghostscript is executed to produce the PDF. But I've found a 
> better way to do it.

before i look into this ... what version of inkscape? when i wrote the 
code ps was the only way that could be trusted (successive version of 
inkscape were broken etc)

> I've modified the file "graphics/inkscape" (it's a ruby source code). At line 69 
> was:
>   resultpipe = "--without-gui --print=\">#{tmpfilename}\" 2>#{logfile}"
> 
> and now:
> resultpipe = "--without-gui --export-pdf=\"#{outfilename}\" 2>#{logfile}"
> 
> After this, all these lines can be commented out:
> 
> #       ghostscript = GhostScript.new(@logger)
> 
> #        ghostscript.setvariable('inputfile',tmpfilename)
> #        ghostscript.setvariable('outputfile',outfilename)
> 
> #        report("converting #{tmpfilename} to #{outfilename}")
> 
> #       ghostscript.convert
> 
> #        begin
> #            File.delete(tmpfilename)
> #        rescue
> #        end
> 
> The difference is that inkscape can export directly to pdf and the conversion is 
> done much better, with transparencies and all the stuff.
> 
> Also, I noticed that at first it didn't work for me because at line 44 
> (logfile=System.null), I don't know why but this strings is "/dev/null/" in my 
> system and when executing the command a message was echoed:
> "sh: /dev/null/ is a directory" and nothing was produced. Now I've modified the 
> caller to pass explictly "/dev/null" as logfile (in pstopdf.rb source, line 401) 
> and now all is working perfectly.
> 
> I hope you can solve these little bugs.
> 
> Regards,
> Zeus.
> 
> 
> Hans Hagen escribió:
>> Zeus G?mez Marmolejo wrote:
>>   
>>> Hi all,
>>>
>>> I'm working with Inkscape and I would like to embed some figures
>>> directly in vector format. How do I do that??
>>>
>>> I'm trying this:
>>>
>>> \externalfigure[system][type=svg][scale=1000]
>>>
>>> But a "dummy" image appears. Is there any svg support in context?!
>>>     
>>
>> \usemodule[res-08] \setups[rl:manipulate]
>>
>> \setupexternalfigures[conversion=pdf]
>>
>> \starttext
>>
>> \externalfigure[system.svg]
>>
>> \stoptext
>>
>> if you're lucky, it works, otherwise you need to look into how rlxtools
>> works
>>
>> -----------------------------------------------------------------
>>                                            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
>> -----------------------------------------------------------------
>>
>>   
> 
> 
> 
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                                           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
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