Accessing local files to launch helper progam using \useURL and \from

Accessing local files to launch helper progam using \useURL and \from

[Matthias Weber]

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

Re: Accessing local files -- more precise description

[Matthias Weber]

Dear all again,


as a follow-up to my previous question, I think I can
now ask more precisely:

In Acrobat, a linked document can be treated in different ways.
A 'webdocument' is typically just downloaded (and opened in Acrobat  
if possible).
This is the behavior I get when using \from with \useURL.

There is another possible behavior, called 'Open File' in Acrobat,  
which will
launch a program to open the linked document. This is what I want.
Is this feature of Acrobat accessible in ConTeXt?

(I can manually edit the pdf to this effect in Acrobat).

Thanks again,

Matthias

Re: Accessing local files to launch helper progam using \useURL and \from

[Willi Egger]

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
>_______________________________________________
>ntg-context mailing list
>ntg-context@ntg.nl
>http://www.ntg.nl/mailman/listinfo/ntg-context
>  
>

Re: Accessing local files -- relative file names?

[Matthias Weber]

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Thanks Willi,

I mistakenly believed \goto only works within one document.

My current solution is to use

\goto{3DXM}[program(/test/cycloids.ODE3D)]

which works in Acrobat (not in preview though, which is something I  
can live with)
and TeXShop.

Curiously enough, if I use relative file names, they still work in  
Acrobat but not inTeXShop anymore...


Thanks again!

Matthias



On May 3, 2006, at 12:18 PM, Willi Egger wrote:

> Please look the details up in the widget-manual


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