Re: Possible Bug in Export to HTML

2012-04-10 Thread Richard Heck 

On 04/10/2012 04:13 AM, Peter Contor wrote:

On 09/04/2012, Richard Heckrgh...@comcast.net  wrote:

On 04/09/2012 01:07 AM, Peter Contor wrote:

On 09/04/2012, Richard Heckrgh...@comcast.net   wrote:

On 04/08/2012 06:57 PM, Peter Contor wrote:

Hi all. This is my first posting to this mailing list, so apologies if
I'm doing something wrong.

My system:

Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
LyX 2.0.3
MIKTeX 2.8

Description of alleged bug:

I open a new file in LyX, open a display style formula box (with
Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
FileExportHTML). The PNG file containing the image of the M has
it unrecognizably blurred.

If put to M's in the display box (MM) and repeat the export, the PNG
file is considerably less garbled. Even less so with three M's. From
about 6 M's onwards, the image is clear.

I used M's to fix ideas: the same happens with any single character.
If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
nothing of the above happens on my system.


Is tex4ht being used by LyX here? or what?

Richard



My understanding is that it's not; i.e., thay LyX uses it's own
scripts/whatever to export to HTML. It is I who used TeX4ht to see if
it would act differently than LyX. It did.


If you want to export using LyX's internal export, then you have to
export to the LyXHTML format. If you export to HTML, then what you get
depends upon how your converters are configured and could be lots of things.

I doubt you are using LyXHTML here, because we produce PNGs only under
the most difficult conditions (unless it is explicitly requested).

Richard



No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
option. Just tried LyXHTML. What happens here is that the export
contains NO pictures whatsoever: it uses only text with unicode
characters. For example, if I try exporting the displayed formula
\int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
∫ dx 1- x 2.



I think what you're getting is MathML, since that is what we export by 
default. This can be controlled a bit under Document Settings Output. 
If you want PNGs, we can give you that instead.


So the question remains: What is LyX using to do the export when you 
export the HTML format? You can find out either (a) by looking to see 
what converters are defined under Tools Preferences, or else (b) by 
running LyX from a terminal and seeing what goes by.


Richard

PS Remember to cc the list in case someone else has ideas.

Re: Possible Bug in Export to HTML

2012-04-10 Thread Peter Contor 
On 10/04/2012, Richard Heck rgh...@comcast.net wrote:
 On 04/10/2012 04:13 AM, Peter Contor wrote:
 On 09/04/2012, Richard Heckrgh...@comcast.net  wrote:
 On 04/09/2012 01:07 AM, Peter Contor wrote:
 On 09/04/2012, Richard Heckrgh...@comcast.net   wrote:
 On 04/08/2012 06:57 PM, Peter Contor wrote:
 Hi all. This is my first posting to this mailing list, so apologies if
 I'm doing something wrong.

 My system:

 Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
 LyX 2.0.3
 MIKTeX 2.8

 Description of alleged bug:

 I open a new file in LyX, open a display style formula box (with
 Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
 FileExportHTML). The PNG file containing the image of the M
 has
 it unrecognizably blurred.

 If put to M's in the display box (MM) and repeat the export, the PNG
 file is considerably less garbled. Even less so with three M's. From
 about 6 M's onwards, the image is clear.

 I used M's to fix ideas: the same happens with any single character.
 If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
 nothing of the above happens on my system.

 Is tex4ht being used by LyX here? or what?

 Richard


 My understanding is that it's not; i.e., thay LyX uses it's own
 scripts/whatever to export to HTML. It is I who used TeX4ht to see if
 it would act differently than LyX. It did.

 If you want to export using LyX's internal export, then you have to
 export to the LyXHTML format. If you export to HTML, then what you get
 depends upon how your converters are configured and could be lots of
 things.

 I doubt you are using LyXHTML here, because we produce PNGs only under
 the most difficult conditions (unless it is explicitly requested).

 Richard


 No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
 option. Just tried LyXHTML. What happens here is that the export
 contains NO pictures whatsoever: it uses only text with unicode
 characters. For example, if I try exporting the displayed formula
 \int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
 ∫ dx 1- x 2.


 I think what you're getting is MathML, since that is what we export by
 default. This can be controlled a bit under Document Settings Output.
 If you want PNGs, we can give you that instead.

 So the question remains: What is LyX using to do the export when you
 export the HTML format? You can find out either (a) by looking to see
 what converters are defined under Tools Preferences, or else (b) by
 running LyX from a terminal and seeing what goes by.

 Richard

 PS Remember to cc the list in case someone else has ideas.



I will check these, not least because I'm using LyX more and more
lately and getting interested in how it works. It does make sense to
me that the trouble is to do with the converters. As it happens, I
also have Debian (in VirtualBox), so a bit earlier I installed LyX in
it. First thing to say is that it looks MUCH better in there, second
is that the HTML export work perfectly 'out of the box'. So it's to do
with my Windows system. Not surprised (especially with Vista...)

Re: Possible Bug in Export to HTML

2012-04-10 Thread Richard Heck 

On 04/10/2012 04:13 AM, Peter Contor wrote:

On 09/04/2012, Richard Heckrgh...@comcast.net  wrote:

On 04/09/2012 01:07 AM, Peter Contor wrote:

On 09/04/2012, Richard Heckrgh...@comcast.net   wrote:

On 04/08/2012 06:57 PM, Peter Contor wrote:

Hi all. This is my first posting to this mailing list, so apologies if
I'm doing something wrong.

My system:

Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
LyX 2.0.3
MIKTeX 2.8

Description of alleged bug:

I open a new file in LyX, open a display style formula box (with
Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
FileExportHTML). The PNG file containing the image of the M has
it unrecognizably blurred.

If put to M's in the display box (MM) and repeat the export, the PNG
file is considerably less garbled. Even less so with three M's. From
about 6 M's onwards, the image is clear.

I used M's to fix ideas: the same happens with any single character.
If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
nothing of the above happens on my system.


Is tex4ht being used by LyX here? or what?

Richard



My understanding is that it's not; i.e., thay LyX uses it's own
scripts/whatever to export to HTML. It is I who used TeX4ht to see if
it would act differently than LyX. It did.


If you want to export using LyX's internal export, then you have to
export to the LyXHTML format. If you export to HTML, then what you get
depends upon how your converters are configured and could be lots of things.

I doubt you are using LyXHTML here, because we produce PNGs only under
the most difficult conditions (unless it is explicitly requested).

Richard



No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
option. Just tried LyXHTML. What happens here is that the export
contains NO pictures whatsoever: it uses only text with unicode
characters. For example, if I try exporting the displayed formula
\int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
∫ dx 1- x 2.



I think what you're getting is MathML, since that is what we export by 
default. This can be controlled a bit under Document Settings Output. 
If you want PNGs, we can give you that instead.


So the question remains: What is LyX using to do the export when you 
export the HTML format? You can find out either (a) by looking to see 
what converters are defined under Tools Preferences, or else (b) by 
running LyX from a terminal and seeing what goes by.


Richard

PS Remember to cc the list in case someone else has ideas.

Re: Possible Bug in Export to HTML

2012-04-10 Thread Peter Contor 
On 10/04/2012, Richard Heck rgh...@comcast.net wrote:
 On 04/10/2012 04:13 AM, Peter Contor wrote:
 On 09/04/2012, Richard Heckrgh...@comcast.net  wrote:
 On 04/09/2012 01:07 AM, Peter Contor wrote:
 On 09/04/2012, Richard Heckrgh...@comcast.net   wrote:
 On 04/08/2012 06:57 PM, Peter Contor wrote:
 Hi all. This is my first posting to this mailing list, so apologies if
 I'm doing something wrong.

 My system:

 Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
 LyX 2.0.3
 MIKTeX 2.8

 Description of alleged bug:

 I open a new file in LyX, open a display style formula box (with
 Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
 FileExportHTML). The PNG file containing the image of the M
 has
 it unrecognizably blurred.

 If put to M's in the display box (MM) and repeat the export, the PNG
 file is considerably less garbled. Even less so with three M's. From
 about 6 M's onwards, the image is clear.

 I used M's to fix ideas: the same happens with any single character.
 If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
 nothing of the above happens on my system.

 Is tex4ht being used by LyX here? or what?

 Richard


 My understanding is that it's not; i.e., thay LyX uses it's own
 scripts/whatever to export to HTML. It is I who used TeX4ht to see if
 it would act differently than LyX. It did.

 If you want to export using LyX's internal export, then you have to
 export to the LyXHTML format. If you export to HTML, then what you get
 depends upon how your converters are configured and could be lots of
 things.

 I doubt you are using LyXHTML here, because we produce PNGs only under
 the most difficult conditions (unless it is explicitly requested).

 Richard


 No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
 option. Just tried LyXHTML. What happens here is that the export
 contains NO pictures whatsoever: it uses only text with unicode
 characters. For example, if I try exporting the displayed formula
 \int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
 ∫ dx 1- x 2.


 I think what you're getting is MathML, since that is what we export by
 default. This can be controlled a bit under Document Settings Output.
 If you want PNGs, we can give you that instead.

 So the question remains: What is LyX using to do the export when you
 export the HTML format? You can find out either (a) by looking to see
 what converters are defined under Tools Preferences, or else (b) by
 running LyX from a terminal and seeing what goes by.

 Richard

 PS Remember to cc the list in case someone else has ideas.



I will check these, not least because I'm using LyX more and more
lately and getting interested in how it works. It does make sense to
me that the trouble is to do with the converters. As it happens, I
also have Debian (in VirtualBox), so a bit earlier I installed LyX in
it. First thing to say is that it looks MUCH better in there, second
is that the HTML export work perfectly 'out of the box'. So it's to do
with my Windows system. Not surprised (especially with Vista...)

Re: Possible Bug in Export to HTML

2012-04-10 Thread Richard Heck 

On 04/10/2012 04:13 AM, Peter Contor wrote:

On 09/04/2012, Richard Heck  wrote:

On 04/09/2012 01:07 AM, Peter Contor wrote:

On 09/04/2012, Richard Heck   wrote:

On 04/08/2012 06:57 PM, Peter Contor wrote:

Hi all. This is my first posting to this mailing list, so apologies if
I'm doing something wrong.

My system:

Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
LyX 2.0.3
MIKTeX 2.8

Description of alleged bug:

I open a new file in LyX, open a display style formula box (with
Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
File>Export>HTML). The PNG file containing the image of the M has
it unrecognizably blurred.

If put to M's in the display box (MM) and repeat the export, the PNG
file is considerably less garbled. Even less so with three M's. From
about 6 M's onwards, the image is clear.

I used M's to fix ideas: the same happens with any single character.
If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
nothing of the above happens on my system.


Is tex4ht being used by LyX here? or what?

Richard



My understanding is that it's not; i.e., thay LyX uses it's own
scripts/whatever to export to HTML. It is I who used TeX4ht to see if
it would act differently than LyX. It did.


If you want to export using LyX's internal export, then you have to
export to the LyXHTML format. If you export to "HTML", then what you get
depends upon how your converters are configured and could be lots of things.

I doubt you are using LyXHTML here, because we produce PNGs only under
the most difficult conditions (unless it is explicitly requested).

Richard



No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
option. Just tried LyXHTML. What happens here is that the export
contains NO pictures whatsoever: it uses only text with unicode
characters. For example, if I try exporting the displayed formula
\int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
∫ dx 1- x 2.



I think what you're getting is MathML, since that is what we export by 
default. This can be controlled a bit under Document> Settings> Output. 
If you want PNGs, we can give you that instead.


So the question remains: What is LyX using to do the export when you 
export the HTML format? You can find out either (a) by looking to see 
what converters are defined under Tools> Preferences, or else (b) by 
running LyX from a terminal and seeing what goes by.


Richard

PS Remember to cc the list in case someone else has ideas.

Re: Possible Bug in Export to HTML

2012-04-10 Thread Peter Contor 
On 10/04/2012, Richard Heck  wrote:
> On 04/10/2012 04:13 AM, Peter Contor wrote:
>> On 09/04/2012, Richard Heck  wrote:
>>> On 04/09/2012 01:07 AM, Peter Contor wrote:
 On 09/04/2012, Richard Heck   wrote:
> On 04/08/2012 06:57 PM, Peter Contor wrote:
>> Hi all. This is my first posting to this mailing list, so apologies if
>> I'm doing something wrong.
>>
>> My system:
>>
>> Windows Vista Home Premium Version 6.0.6002 Service Pack 2 Build 6002
>> LyX 2.0.3
>> MIKTeX 2.8
>>
>> Description of alleged bug:
>>
>> I open a new file in LyX, open a display style formula box (with
>> Ctrl-Shift-m), type in an M, save the file and export it to HTML (with
>> File>Export>HTML). The PNG file containing the image of the M
>> has
>> it unrecognizably blurred.
>>
>> If put to M's in the display box (MM) and repeat the export, the PNG
>> file is considerably less garbled. Even less so with three M's. From
>> about 6 M's onwards, the image is clear.
>>
>> I used M's to fix ideas: the same happens with any single character.
>> If I export to LaTeX and use TeX4ht (htlatex) to convert to HTML,
>> nothing of the above happens on my system.
>>
> Is tex4ht being used by LyX here? or what?
>
> Richard
>
>
 My understanding is that it's not; i.e., thay LyX uses it's own
 scripts/whatever to export to HTML. It is I who used TeX4ht to see if
 it would act differently than LyX. It did.

>>> If you want to export using LyX's internal export, then you have to
>>> export to the LyXHTML format. If you export to "HTML", then what you get
>>> depends upon how your converters are configured and could be lots of
>>> things.
>>>
>>> I doubt you are using LyXHTML here, because we produce PNGs only under
>>> the most difficult conditions (unless it is explicitly requested).
>>>
>>> Richard
>>>
>>>
>> No Richard, I wasn't using LyXHTML. Just the 'plain' HTML export
>> option. Just tried LyXHTML. What happens here is that the export
>> contains NO pictures whatsoever: it uses only text with unicode
>> characters. For example, if I try exporting the displayed formula
>> \int\frac{dx}{\sqrt{1-x^2}}, all I get in the exported HTML file is
>> ∫ dx 1- x 2.
>>
>
> I think what you're getting is MathML, since that is what we export by
> default. This can be controlled a bit under Document> Settings> Output.
> If you want PNGs, we can give you that instead.
>
> So the question remains: What is LyX using to do the export when you
> export the HTML format? You can find out either (a) by looking to see
> what converters are defined under Tools> Preferences, or else (b) by
> running LyX from a terminal and seeing what goes by.
>
> Richard
>
> PS Remember to cc the list in case someone else has ideas.
>
>

I will check these, not least because I'm using LyX more and more
lately and getting interested in how it works. It does make sense to
me that the trouble is to do with the converters. As it happens, I
also have Debian (in VirtualBox), so a bit earlier I installed LyX in
it. First thing to say is that it looks MUCH better in there, second
is that the HTML export work perfectly 'out of the box'. So it's to do
with my Windows system. Not surprised (especially with Vista...)