On Sep 12, 2012, at 9:21 AM, Rainer M Krug wrote:

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> On 12/09/12 15:15, Rainer M Krug wrote:
>> On 12/09/12 14:19, Stephen Buonopane wrote:
>>> You can add something like this to your preamble (does not affect how they 
>>> appear in LyX 
>>> preview of course)…
>> 
>>> \renewenvironment{figure}[1][]{ \@float{figure} \centering \singlespacing} 
>>> {\end@float} 
>>> \renewenvironment{table}[1][]{ \@float{table} \centering \singlespacing} 
>>> {\end@float}
>> 
>> Now this is a neat idea - haven't thought about that. Saves me quite some 
>> work.
> 
> But I was to fast. I get an error:
> 
> ! Undefined control sequence.
> \\figure ...at {figure} \centering \singlespacing
> 
> l.177 \begin{figure}[H]
> 
> The control sequence at the end of the top line
> of your error message was never \def'ed. If you have
> misspelled it (e.g., `\hobx'), type `I' and the correct
> spelling (e.g., `I\hbox'). Otherwise just continue,
> and I'll forget about whatever was undefined.
> 
> Any suggestions?
> 
> Rainer
> 

I have not used it recently, but I get the same error you do.
I copied it from Herbert Voss' tips and tricks page many years ago. 
It worked then, but I am not sure what has changed.

Actually…it looks like the /singlespacing command is causing the problem.
Delete that and the centering still works.

Steve

>> 
>> Thanks,
>> 
>> Rainer
>> 
>> 
>>> On Sep 12, 2012, at 7:23 AM, Liviu Andronic wrote:
>> 
>>>> On Wed, Sep 12, 2012 at 12:58 PM, Rainer M Krug <[email protected]> wrote:
>>>>> There are (at least) two ways of centering a single figure / graphic 
>>>>> horizontally in a 
>>>>> figure float:
>>>>> 
>>>>> 1) using paragrahh properties - alignment - center
>>>>> 
>>>> I'm no expert, but this is what I usually do. And to me this seems the 
>>>> less hacky
>>>> approach.
>>>> 
>>>> Liviu
>>>> 
>>>> 
>>>>> 2) using a \hfill left and right of the figure
>>>>> 
>>>>> What is the better / more robust / more LaTeX way of doing this?
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Rainer
>>>>> 
>>>>> - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation 
>>>>> Biology, UCT), 
>>>>> Dipl. Phys. (Germany)
>>>>> 
>>>>> Centre of Excellence for Invasion Biology Stellenbosch University South 
>>>>> Africa
>>>>> 
>>>>> Tel :       +33 - (0)9 53 10 27 44 Cell:       +33 - (0)6 85 62 59 98 Fax 
>>>>> :       +33 - 
>>>>> (0)9 58 10 27 44
>>>>> 
>>>>> Fax (D):    +49 - (0)3 21 21 25 22 44
>>>>> 
>>>>> email:      [email protected]
>>>>> 
>>>>> Skype:      RMkrug
> 
>> 
> 
> - -- 
> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, 
> UCT), Dipl. Phys.
> (Germany)
> 
> Centre of Excellence for Invasion Biology
> Stellenbosch University
> South Africa
> 
> Tel :       +33 - (0)9 53 10 27 44
> Cell:       +33 - (0)6 85 62 59 98
> Fax :       +33 - (0)9 58 10 27 44
> 
> Fax (D):    +49 - (0)3 21 21 25 22 44
> 
> email:      [email protected]
> 
> Skype:      RMkrug
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