[NTG-context] Accessing local files to launch helper progam using \useURL and \from

Willi Egger w.egger at boede.nl
Wed May 3 18:18:16 CEST 2006


Hi Matthias,

I would suggest to use \goto...
Please look the details up in the widget-manual

Kind regards Willi

Matthias Weber wrote:

>Dear all,
>
>I am trying to us \useURL and \from with mixed success to access a  
>local file so that it will be
>opened by a helper program. Both the program and the file to be  
>opened by it
>reside in my local file system. Here is a small example:
>
>\setupcolors[state=start]
>
>\setupinteraction
>[state=start,color=blue]
>
>
>\useURL[cycloids][{file://3dxm/cycloids.stng}][][3DXM]
>
>\starttext
>
>\inmargin{\from[cycloids]}
>In this section, we study curves that are obtained by tracing a point  
>on a fixed circle while it is rolling  along another circle.
>
>\stoptext
>
>
>
>cycloids.stng is a file, that, when double-clicked, starts a program  
>it is associated with.
>For trying, you can replace it by any other file that uses a special  
>application to go with.
>
>Unfortunately, this *only* works with the pdf viewer in TeXShop (I am  
>on a Mac).
>Preview doesn't do anything but beep, and Acrobat 6 offers a few  
>choices, none of which is to
>open a helper application. Does anybody know if there is another way  
>of launching helper
>applications when accessing documents?
>
>Also, while at it: When accessing local files, the URL appears to be  
>absolute. Is there a way to use
>URLs relative to the location of the PDF that is referencing the URL?
>
>Thanks,
>
>Matthias
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>  
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