Mimetex/Firefox problems

mdettweiler · 2007-11-21, 02:07

Grr ... for some reason the above kind of Tex rendering always shows up grainy and unreadable in my Firefox window - [I've attached a copied version of the .gif file I get from Jesper's 2nd equation above, to illustrate]. Jes, could you do me a favor and post the rendered Tex chunks as images, by copying the images you see?

Thanks,
-Ernst

Mine doesn't look much better. I've cheated and attached my version as seen in YAP...

--
Cheers,
Jes

Quote:

Originally Posted by ewmayer

Grr ... for some reason the above kind of Tex rendering always shows up grainy and unreadable in my Firefox window - [I've attached a copied version of the .gif file I get from Jesper's 2nd equation above, to illustrate]. Jes, could you do me a favor and post the rendered Tex chunks as images, by copying the images you see?

Thanks,
-Ernst

That's how it looks for everyone, Ernst. It's rendered on the server, and it just doesn't do much (any?) anti-aliasing.

I am using firefox and it does not look grainy.

Quote:

Originally Posted by Orgasmic Troll

That's how it looks for everyone, Ernst. It's rendered on the server, and it just doesn't do much (any?) anti-aliasing.

It looks pretty clear and readable to me (though that may possibly be compared to me saying that somebody's Chinese chicken scratch looks neat because I don't know Chinese).

ewmayer, do you have some sort of "web speedup" or similar application that might compress images for quicker downloads? I've seen those mangle images sometimes (especially if they're on a really high compression setting).

Quote:

Originally Posted by Anonymous

ewmayer, do you have some sort of "web speedup" or similar application that might compress images for quicker downloads? I've seen those mangle images sometimes (especially if they're on a really high compression setting).

I don't rceall ever explicitly enabling such a setting -- is there an image-compression setting in Firefox, and if so, how do I access it? [E.g. via pull-down or the about:config laundry list?]

Quote:

Originally Posted by ewmayer

Grr ... for some reason the above kind of Tex rendering always shows up grainy and unreadable in my Firefox window - [I've attached a copied version of the .gif file I get from Jesper's 2nd equation above, to illustrate].

I'm not sure what you mean to illustrate. Your attachment looks like the image in the original post in my IE 7.0.

Your attachment is a 3001-byte gif image identical (byte for byte) to what my IE displays at http://mersenneforum.org/cgi-bin/mimetex.cgi?%20\nabla_y\times%20BS(V)(y)%20=%20\left\{%20\begin{tabular}{ll}V(y)%20&%20\text{for%20}y\in\Omega%20\\%200%20&%20\text{for%20}y\in\Omega'%20\end{tabular}\right\}%20+%20\frac{1}{4\pi}\nabla_y\int_\Omega\frac{\nabla_x\cdot%20V(x)}{|y-x|}d(\text{vol}_x)%20%20-%20\frac{1}{4\pi}\nabla_y\int_{\partial\Omega}\frac{V(x)\cdot%20n}{|y-x|}d(\text{area}_x),

When I right click the image in JHansen's post and save, I get the attached 37798-byte bmp image (zipped because bmp attachments are disallowed). When viewed in an graphics program, it looks just like IE displays JHansen's post, except for the background color.

All mentioned images look identical, fine and easily readable to me.

Quote:

Originally Posted by JHansen

Mine doesn't look much better. I've cheated and attached my version as seen in YAP...

When I click on yours it renders perfectly clear. Mine still comes out grainy-and-illegible, at least when I view it [in either Firefox or IE]. Weird.

Quote:

Originally Posted by ewmayer

I don't rceall ever explicitly enabling such a setting -- is there an image-compression setting in Firefox, and if so, how do I access it? [E.g. via pull-down or the about:config laundry list?]

No, not built in to Firefox; unless you've got an external app that's compressing images, that isn't the problem. Do you by any chance, though, have some sort of "accelerator" program installed? Maybe one came from your ISP? (Often dial-up ISPs try to make thier connection seem faster by putting one on their setup CDs.)

Xyzzy · 2007-11-21, 11:40

Apologies for the mess in post one. We used the "merge posts" button instead of the "move posts" button.

ewmayer · 2007-11-21, 17:12

Mike, could you clean up the opening post to fix up the quotes and make it easier to see who wrote what?

Also, it's not clear to me from the above discussion whether we have any real clues as to why some of us can't properly view the forum-generated MimeTex - whether I directly view the 3kB ...cgi.gif in Firefox or save-to-disk and reopen with Windows Pic/fax viewer, it comes out ugly, so it would appear that the file arrives on my desktop in hosed form.

I doubt it's any kind of ISP compression in my case, since I'm doing this at work, and we have massive bandwidth.

sign me,
Still Clueless in Cupertino
-Ernst

Xyzzy · 2007-11-21, 22:56

No way to clean up the post. Once it is merged it is a done deal.

The reason the bitmap version looks proper is because it isn't being translated by "something". It is just displaying the raw image.

We have no idea what that "something" is.

You might try a different browser, to isolate it as a browser problem, or maybe try a different computer.

You could also visit the Mimetex site and see if the images there look right.

http://www.forkosh.com/mimetex.html

ewmayer · 2007-11-21, 23:05

Quote:

Originally Posted by Xyzzy

You could also visit the Mimetex site and see if the images there look right.

http://www.forkosh.com/mimetex.html

Most of these look as grainy as I'm [alas] used to, however I did notice that of the 4 sample expressions in Examples line (1), the third renders just fine. Don't know if that is helpful by way of tracking-the-problem-down.

[Not a huge deal, I'll just continue having-to-ignore all posts that use it.]

Jens K Andersen · 2007-11-22, 12:08

They all look fine to me. I copied their source here where they also look fine.

\red\large\displaystyle e^x=\sum_{n=0}^\infty\frac{x^n}{n!} renders as:
$\red\large\displaystyle e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

\blue\Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!} :
$\blue\Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} :
$\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

\Large e^x=\lim_{n\to\infty} \left(1+\frac~xn\right)^n :
$\Large e^x=\lim_{n\to\infty} \left(1+\frac~xn\right)^n$

Can you also try a different Internet connection? Maybe somebody added image compression before it reaches your computer.

ewmayer · 2007-11-23, 20:10

Thanks, Jens - they look the same to me as on the site - pics 12, 4 look like some crappy grainy overlay has mad an underlying b&w image unreadable, pic 3 looks just fine.

Quote:

Originally Posted by Xyzzy

rt click image, save to computer, view file w/ another viewer

if file looks right, then ff is to blame

if file looks borked, then something is altering the file enroute to you

Look the same when I save and reopen with e.g. Windows pic&fax viewer. But the problem with the latter hypothesis is, this happens whether I do it at work or at home - 2 different computers, same version of FF [2.0.0.8], different ISPs.

So, since the 3rd image above does render OK for me, is there a way to make all user MimeTex render like that one?

Jens K Andersen · 2007-11-24, 12:41

The third was:
\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} :
$\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

I have removed reverse, opaque and LARGE one at a time.

\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (no reverse):
$\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

\reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (no opaque):
$\reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

\reverse\opaque \Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (Large instead of LARGE):
$\reverse\opaque \Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

No opaque looks almost unreadable to me. How about you? And does no opaque look similar to the previously poor images for you?

mdettweiler · 2007-11-25, 05:05

I'm using Firefox right now (previously I was using IE7) and everything looks fine, including the ones reported to be grainy. Thus, it must be something on your end--either a compression program somewhere along the way, or maybe your copy of Firefox has something wrong with it.

Mini-Geek · 2007-11-25, 13:32

Quote:

Originally Posted by Jens K Andersen

\reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (no opaque):
$\reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$

...

No opaque looks almost unreadable to me. How about you? And does no opaque look similar to the previously poor images for you?

No opaque is the only image I've seen in all this that looks grainy. I'm using 2.0.0.9 on XP Pro. Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9

Fusion_power · 2007-11-25, 13:32

Check Tools:Options:Content
Then in the box marked Fonts & Colors click the advanced button.
See if any of the settings differ from:

Fonts for: Western
Proportional: Serif Size: 16
Serif: Times New Roman
Sans-Serif: Arial
Monospace: Courier New Size: 13

Check the box beside "allow pages to choose their own font...."

Character encoding: Western (iso 8859-1)

darjones

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2007-11-21, 11:40	#2
Xyzzy "Mike" Aug 2002 2⁵·257 Posts	Apologies for the mess in post one. We used the "merge posts" button instead of the "move posts" button.

2007-11-21, 17:12	#3
ewmayer ∂²ω=0 Sep 2002 República de California 26567₈ Posts	Mike, could you clean up the opening post to fix up the quotes and make it easier to see who wrote what? Also, it's not clear to me from the above discussion whether we have any real clues as to why some of us can't properly view the forum-generated MimeTex - whether I directly view the 3kB ...cgi.gif in Firefox or save-to-disk and reopen with Windows Pic/fax viewer, it comes out ugly, so it would appear that the file arrives on my desktop in hosed form. I doubt it's any kind of ISP compression in my case, since I'm doing this at work, and we have massive bandwidth. sign me, Still Clueless in Cupertino -Ernst

2007-11-21, 22:56	#4
Xyzzy "Mike" Aug 2002 10000000100000₂ Posts	No way to clean up the post. Once it is merged it is a done deal. The reason the bitmap version looks proper is because it isn't being translated by "something". It is just displaying the raw image. We have no idea what that "something" is. You might try a different browser, to isolate it as a browser problem, or maybe try a different computer. You could also visit the Mimetex site and see if the images there look right. http://www.forkosh.com/mimetex.html

2007-11-22, 12:08	#6
Jens K Andersen Feb 2006 Denmark 2×5×23 Posts	They all look fine to me. I copied their source here where they also look fine. \red\large\displaystyle e^x=\sum_{n=0}^\infty\frac{x^n}{n!} renders as: $\red\large\displaystyle e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ \blue\Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!} : $\blue\Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ \reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} : $\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ \Large e^x=\lim_{n\to\infty} \left(1+\frac~xn\right)^n : $\Large e^x=\lim_{n\to\infty} \left(1+\frac~xn\right)^n$ Can you also try a different Internet connection? Maybe somebody added image compression before it reaches your computer.

2007-11-24, 12:41	#8
Jens K Andersen Feb 2006 Denmark 2·5·23 Posts	The third was: \reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} : $\reverse\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ I have removed reverse, opaque and LARGE one at a time. \opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (no reverse): $\opaque \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ \reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (no opaque): $\reverse \LARGE e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ \reverse\opaque \Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!} (Large instead of LARGE): $\reverse\opaque \Large e^x=\sum_{n=0}^\infty\frac{x^n}{n!}$ No opaque looks almost unreadable to me. How about you? And does no opaque look similar to the previously poor images for you?

2007-11-25, 05:05	#9
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	I'm using Firefox right now (previously I was using IE7) and everything looks fine, including the ones reported to be grainy. Thus, it must be something on your end--either a compression program somewhere along the way, or maybe your copy of Firefox has something wrong with it.

2007-11-25, 13:32	#11
Fusion_power Aug 2003 Snicker, AL 7×137 Posts	Check Tools:Options:Content Then in the box marked Fonts & Colors click the advanced button. See if any of the settings differ from: Fonts for: Western Proportional: Serif Size: 16 Serif: Times New Roman Sans-Serif: Arial Monospace: Courier New Size: 13 Check the box beside "allow pages to choose their own font...." Character encoding: Western (iso 8859-1) darjones