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Jean-Baptiste Rouquier | 2 Jun 2006 14:47
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Re: Metapost or pgf/tikz?

Thanks for this detailed advice. It would be very useful if added to the 
beamer manual in section 12 "graphics".
Here are a few additions :
> Things metapost can do better than TikZ.
> (...)
>
> Things metapost and TikZ are both good at.
> (...)
and tight integration with TeX. Formulas inside graphics are easy.

> Things metaport and TikZ are both bad at.
> (...)
and outdated programming language :
 - macro based
 - regularly cryptographic error messages, sometimes with very 
approximate location
 - no modern language features for comfortable programming (data 
structures, namespace hierarchy, etc.)
I have not tried TikZ a lot, it can be better regarding this point, but 
still inherits a lot from TeX.

> Things TikZ can do better than metapost:
> (...)
> - detailed manual
There are also very good unofficial tutorials or galleries with source 
code or manuals for Metapost.

Jean-Baptiste Rouquier
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Mark Jago | 22 Jun 2006 10:58
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(no subject)

Hi,
Does anyone know how to use tikz to draw a reflexive arc, i.e. a  
(roughly) circular arrow from a node to itself?
Thanks,
Mark

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Murali Krishnan Ganapathy | 22 Jun 2006 18:31
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Re: (no subject)

Mark Jago wrote:
> Hi,
> Does anyone know how to use tikz to draw a reflexive arc, i.e. a  
> (roughly) circular arrow from a node to itself?
> Thanks,
> Mark
>
>   
\draw (nodename) .. controls +(60:1cm) and +(120:1cm) .. (nodename};
draws a curve which leaves at 60 degrees and comes back at 120 degrees. 
I hope this is what you wanted?

- Murali

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Gordon Royle | 23 Jun 2006 04:16
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Beamer, PGF and TiKz


I have previously used beamer and PGF (mostly pgfnodes for drawing networks),
but now there is TiKz as well, and I am a little confused by the
relationship between TiKz and PGF...

Does TiKz now REPLACE the functionality that used to be in, say, pgfnodes?
Or is it complementary?
Should I redo my pgfnode pictures in TiKz or can I just mix and match as I
choose...

(I know that I could probably find partial answers by experimentation, but
time is short and I have a 50-minute talk with many diagrams to prepare....)

Expert advice gratefully received...

Cheers

gordon 
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Murali Krishnan Ganapathy | 23 Jun 2006 07:01
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Re: Beamer, PGF and TiKz

Gordon Royle wrote:
> I have previously used beamer and PGF (mostly pgfnodes for drawing networks),
> but now there is TiKz as well, and I am a little confused by the
> relationship between TiKz and PGF...
>
> Does TiKz now REPLACE the functionality that used to be in, say, pgfnodes?
> Or is it complementary?
> Should I redo my pgfnode pictures in TiKz or can I just mix and match as I
> choose...
>
>   
TikZ is just a UI layer which makes PGF easier to use, i.e. every TikZ 
command is internally replaced by equivalent sequences of PGF commands. 
Since loading TikZ automatically loads PGF, you can mix and match to 
your heart's content.

- Murali

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Till Tantau | 23 Jun 2006 11:51
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Re: Beamer, PGF and TiKz


Am 23.06.2006 um 07:01 schrieb Murali Krishnan Ganapathy:

> Gordon Royle wrote:
>> I have previously used beamer and PGF (mostly pgfnodes for drawing  
>> networks),
>> but now there is TiKz as well, and I am a little confused by the
>> relationship between TiKz and PGF...
>>
>> Does TiKz now REPLACE the functionality that used to be in, say,  
>> pgfnodes?
>> Or is it complementary?
>> Should I redo my pgfnode pictures in TiKz or can I just mix and  
>> match as I
>> choose...
>>
>>
> TikZ is just a UI layer which makes PGF easier to use, i.e. every TikZ
> command is internally replaced by equivalent sequences of PGF  
> commands.
> Since loading TikZ automatically loads PGF, you can mix and match to
> your heart's content.

> - Murali

Indeed. I only wanted to add that the node management of pgf has  
changed completely and the old \pgfnoderect, \pgfnodecircle etc.  
commands are only supported for compatibility. So, it is not possible  
to connect, say, a pgf node created using \pgfnoderect to a node  
created using the new \pgfnode command. Since TikZ maps back to the
(Continue reading)

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