[sage-support] Re: Warnings from JsMath
What is the current status of your sprite fonts plugin? That seems like that would address the size issues. It was a nice idea, but turned out to have some serious drawbacks. It really slowed down IE (it appears that IE renders the entire image behind the scenes even though only a tiny portion is showing), and since it was already too slow to begin with, it made it unbearably so. Firefox works unexpectedly slowly on the hi-res fonts for printing. Also, Opera (at the time) had a bug that prevented the clipped images from being positioned properly, and so I had to use background images, and that meant they didn't print unless the user turned on printing of backgrounds. I haven't checked recently to see if Opera has fixed that bug or not. Firefox on the PC did not show print previewing correctly, but did print correctly. On the other hand, Opera on the PC previews correctly, but prints incorrectly. (It seems that print previewing on the PC is not very closely tied to the actual print results.) There were also other printing issues, and since every character has to be put into separate clipping boxes and aligned properly by hand, there are noticeable baseline alignment issues at times, and the resulting HTML is considerably more complex. In the end, it seems that the sprite-based image fonts were just too fragile and browser dependent, so I have not continued development on that front. Indeed, I'm not sure they still work with the current version of jsMath (I haven't tested them in a while). On the other hand, there are new versions of Opera and IE since I worked on the sprite fonts, so perhaps the situation has improved. what is the possibility that we could automagically extract the character images on the server side and send those, so that from the client, it would appear as if the original image fonts plugin was loaded. Well, it probably could be done through some sort of CGI interface, but it seems to me that it would be likely slow jsMath down even further. It also violates one of the important design decisions for jsMath, which is not to reply on programs running on the server. And if you are going to start running things on the server, why not just process the complete formula on the server with one of the many possible choices of tex-image rendering (mimeTeX, BlahTeX, dvipng, etc)? It seems pretty inefficient to process individual characters one at a time. Maybe it would help to have the results cached, but they isn't that really just the same as having the individual images all there initially? It may be possible to reduce the number of sizes used by perhaps not use the very largest and smallest sizes, but the large ones are there for the hi-res printing, so you might have to lose that. It might also be possible to leave out every other size, but that would mean the math might not match the text size quite so well. You could probably cut the image font size in half or more that way. But is it really worth it? in these days 100 of 200 GB hard drives, is 80 MB all that much? That's about 50 images from my digital camera, or just about two rolls of traditional film. I have single sound files that are larger than that. The real solution is, of course, to install the jsMath TeX fonts and avoid the whole issue. For a private installation (like I expect most sage installations are), where you are the only person looking at the web pages that use jsMath, it is reasonable not to install the image fonts because once you have the jsMath TeX fonts, there is no need for anything else. On the other hand, if you are hosting a public site, where you don't know whether your reader has installed the fonts or not, then you have to decide whether it is worth the space in order to give those users a better view of the mathematics on your site. My own feeling is that the image fonts are so much superior to the unicode results that it is worth it to me (because I know that most people won't install the TeX fonts, so image-font mode turns out to be the primary mode used by most viewers). While I would like a method with a smaller footprint on the server, I haven't found one that is as reliable and maintainable as the image fonts. Davide --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Jan 29, 2008 7:11 AM, dpvc [EMAIL PROTECTED] wrote: What is the current status of your sprite fonts plugin? That seems like that would address the size issues. It was a nice idea, but turned out to have some serious drawbacks. It really slowed down IE (it appears that IE renders the entire image behind the scenes even though only a tiny portion is showing), and since it was already too slow to begin with, it made it unbearably so. Firefox works unexpectedly slowly on the hi-res fonts for printing. Also, Opera (at the time) had a bug that prevented the clipped images from being positioned properly, and so I had to use background images, and that meant they didn't print unless the user turned on printing of backgrounds. I haven't checked recently to see if Opera has fixed that bug or not. Firefox on the PC did not show print previewing correctly, but did print correctly. On the other hand, Opera on the PC previews correctly, but prints incorrectly. (It seems that print previewing on the PC is not very closely tied to the actual print results.) There were also other printing issues, and since every character has to be put into separate clipping boxes and aligned properly by hand, there are noticeable baseline alignment issues at times, and the resulting HTML is considerably more complex. In the end, it seems that the sprite-based image fonts were just too fragile and browser dependent, so I have not continued development on that front. Indeed, I'm not sure they still work with the current version of jsMath (I haven't tested them in a while). On the other hand, there are new versions of Opera and IE since I worked on the sprite fonts, so perhaps the situation has improved. what is the possibility that we could automagically extract the character images on the server side and send those, so that from the client, it would appear as if the original image fonts plugin was loaded. Well, it probably could be done through some sort of CGI interface, but it seems to me that it would be likely slow jsMath down even further. It also violates one of the important design decisions for jsMath, which is not to reply on programs running on the server. And if you are going to start running things on the server, why not just process the complete formula on the server with one of the many possible choices of tex-image rendering (mimeTeX, BlahTeX, dvipng, etc)? It seems pretty inefficient to process individual characters one at a time. Maybe it would help to have the results cached, but they isn't that really just the same as having the individual images all there initially? It may be possible to reduce the number of sizes used by perhaps not use the very largest and smallest sizes, but the large ones are there for the hi-res printing, so you might have to lose that. It might also be possible to leave out every other size, but that would mean the math might not match the text size quite so well. You could probably cut the image font size in half or more that way. But is it really worth it? in these days 100 of 200 GB hard drives, is 80 MB all that much? That's about 50 images from my digital camera, or just about two rolls of traditional film. I have single sound files that are larger than that. The real solution is, of course, to install the jsMath TeX fonts and avoid the whole issue. For a private installation (like I expect most sage installations are), where you are the only person looking at the web pages that use jsMath, it is reasonable not to install the image fonts because once you have the jsMath TeX fonts, there is no need for anything else. On the other hand, if you are hosting a public site, where you don't know whether your reader has installed the fonts or not, then you have to decide whether it is worth the space in order to give those users a better view of the mathematics on your site. My own feeling is that the image fonts are so much superior to the unicode results that it is worth it to me (because I know that most people won't install the TeX fonts, so image-font mode turns out to be the primary mode used by most viewers). While I would like a method with a smaller footprint on the server, I haven't found one that is as reliable and maintainable as the image fonts. You've convinced me. We'll make an optional spkg that people can install on servers to enable this functionality: http://trac.sagemath.org/sage_trac/ticket/1971 William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
You've convinced me. We'll make an optional spkg that people can install on servers to enable this functionality: http://trac.sagemath.org/sage_trac/ticket/1971 OK, great. I think that will be useful. In another thread someone mentioned the STIX fonts, and I said I hoped to support those in jsMath. That may be another route, as they will not be separate jsMath fonts and so users are more likely to have them installed for other reasons. So the image fonts may become less important as the STIX fonts become more widely used. I still have to do some work to have jsMath handle them, however, and that probably won't happen for a while. Davide --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
my comment that the warning about printing should be on the screen rather than the paper still holds. I agree with that. When one clicks the print button in the notebook it should render the html withjsmathbut with no warning at all. I've made this trac #1950: http://trac.sagemath.org/sage_trac/ticket/1950 Since you are not using the image fonts, the print message should not be showing up. The message only applies to when image fonts are used, so in unicode mode the message should not be printed.That sounds like a bug in jsMath, then, and I'll look into it. I assume you have used the noImageFonts plugin to disable the image fonts options? (and also the noGlobal plugin to disable global mode?) Do any of your users actually install the image fonts? Personally, I find the unicode mode the least effective of all the modes. I now understand your complaints that the mathematics doesn't look very good without the jsMath TeX fonts. The image mode, while not so nice as the TeX font mode, works pretty well and gives very acceptable results, but the unicode mode is pretty lame. I had originally thought I'd be able to do jsMath with just the unicode mode, but that turned out to be pretty unreliable. I haven't put much work into keeping unicode mode working well, and I think some things may no longer work properly in Firefox in unicode mode. I suspect there are a number of missing characters, but that is dependent on the fonts you have installed, which differ from platform to platform, and I can only check on the Mac and PC at the moment. Davide Davide --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
William Stein wrote: On Jan 26, 2008 3:49 AM, dpvc [EMAIL PROTECTED] wrote: The fonts I downloaded are 80Mb! You downloaded the wrong thing. There are two kinds of fonts used by jsMath: one is standard TTF fonts that the browser can use like any other font. These are called the jsMath TeX fonts, and are what the warning message is complaining about. The link on the jsMath control panel to Missing Fonts takes you to a page that explains this and links to the download page for the missing fonts. That is the page William and others have pointed you to in other messages. These fonts are small and are installed on the machine that is running the browser that is viewing pages that contain jsMath. The other type of font is called the jsMath Image Fonts and is the 80 MB download you talk about. These are not really fonts, they are collections of images of the characters in the fonts (an image for each character in each font in each size that jsMath uses, and so there are tens of thousands of them). These go on the SERVER, as part of the jsMath folder. Individual users don't usually install these on their machines, but since sage is running locally on your machine, it has a full installation of the jsMath server files, and so these image fonts must be there as well. ^^^ Sage (the SERVER) actually does *not* include the 80MB jsMath Image Fonts. I made the decision not to include them a long time ago, mostly because of disk space and configuration issues, and it hasn't been revisited yet. Davide, What is the current status of your sprite fonts plugin? That seems like that would address the size issues. Also, what is the possibility that we could automagically extract the character images on the server side and send those, so that from the client, it would appear as if the original image fonts plugin was loaded. Thanks, Jason --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Jan 27, 2008 12:03 PM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, William Stein wrote: On Jan 25, 2008 4:49 AM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. ??! There is nothing about server trees here: http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html You just download a 120KB zipped font file, extract it and install it as explained there. It has nothing whatever to do with servers. Where is the server tree for the notebook server? That is just talking about installing TeX fonts which are installed on my system anyway. I've been using TeX/LaTeX for years... This is not about installing TeX fonts which are on your system anyways. Jsmath is a javascript implementation of TeX that runs in a web browser. It requires its own version of the tex fonts, which are that 120KB zipped file mentioned above. It certainly does not make use of fonts that come with, e.g., the teTex tex install. I guess we have been somehow talking at cross purposes here. I'll check further to see if there's something gone adrift. Bill -- +---+ | Bill Purvis, Amateur Mathematician| | email: [EMAIL PROTECTED] | | http://bil.members.beeb.net | +---+ -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Jan 27, 2008 12:19 PM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, William Stein wrote: On Jan 25, 2008 4:49 AM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. ??! There is nothing about server trees here: http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html You just download a 120KB zipped font file, extract it and install it as explained there. It has nothing whatever to do with servers. OK, I apologise! I downloaded them and followed the instructions. They say I have to reload X11 server which I've not done, though I had to restart Firefox then the popups went away. Checked out the printouts too, though my comment that the warning about printing should be on the screen rather than the paper still holds. I agree with that. When one clicks the print button in the notebook it should render the html with jsmath but with no warning at all. I've made this trac #1950: http://trac.sagemath.org/sage_trac/ticket/1950 William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Friday 25 January 2008, William Stein wrote: On Jan 25, 2008 4:49 AM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. ??! There is nothing about server trees here: http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html You just download a 120KB zipped font file, extract it and install it as explained there. It has nothing whatever to do with servers. OK, I apologise! I downloaded them and followed the instructions. They say I have to reload X11 server which I've not done, though I had to restart Firefox then the popups went away. Checked out the printouts too, though my comment that the warning about printing should be on the screen rather than the paper still holds. On the other hand, that's probably not in your court :-) Bill -- +---+ | Bill Purvis, Amateur Mathematician| | email: [EMAIL PROTECTED] | | http://bil.members.beeb.net | +---+ --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Friday 25 January 2008, William Stein wrote: On Jan 25, 2008 4:49 AM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. ??! There is nothing about server trees here: http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html You just download a 120KB zipped font file, extract it and install it as explained there. It has nothing whatever to do with servers. Where is the server tree for the notebook server? That is just talking about installing TeX fonts which are installed on my system anyway. I've been using TeX/LaTeX for years... I guess we have been somehow talking at cross purposes here. I'll check further to see if there's something gone adrift. Bill -- +---+ | Bill Purvis, Amateur Mathematician| | email: [EMAIL PROTECTED] | | http://bil.members.beeb.net | +---+ --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
I find the warning messages that appear at the top of the notebook saying that JsMath isn't available annoying. If you look carefully, it says the jsMath TeX fonts aren't found, not that jsMath isn't found (in fact, it is jsMath that issuing the message, so clearly that was found). I find it especially annoying when I try to print something - I get a big red box at the top of my output saying: To print higher resolution math symbols, click the Hi_Res Fonts for Printing button on thejsMathcontrol panel. If you would install the jsMath TeX fonts, that would go away. What control panel? The small jsMath button at the bottom right of the screen links to the control panel. Also, the initial jsMath font warning page that you get when you first view the notebook has two buttons on it: one to hide the message and one to open the jsMath control panel. If you don't like to see the message, you can push the hide button and it will go away (no more work than if you were receive an alert message). If you don't know how to get the jsMath control panel, you can get it from that message. You can also get it by ALT-clicking on any typeset mathematics. If you have to issue a warning, it should be on the 'print' window, before you commit to paper. Having seen the message, if you go ahead, it should not appear on the paper! If sage constructs a special version of the page for printing purposes (I don't use sage myself, so I'm unfamiliar with its workings), then it would be possible for that page to load the higher-resolution fonts automatically (via the insertion of a line similar to the one William listed for turning off the main font warning). Otherwise, if you are just printing the page out of the browser, there is no way to jsMath to know if you are planning to print such a page, and so it puts it in the only place that makes sense, the printed version, which will be showing the poor quality output and where it is likely to do you some good. Putting it on every page you view would be considered by some users as annoying. The jsMath panel allows you to control the printing of these messages, so the user has the option of turning them off himself. You can also configure jsMath not to display the print warnings in a similar fashion to William's message about the main font warnings. You can also change the CSS styles for the message to make them less obtrusive, or replace the content of the message by your own wording. Finally, you can override jsMath's function for issuing the message and so make it appear anywhere or in any form you want. These possibilities are documented at http://www.math.union.edu/locate/jsMath/authors/warnings.html so the sage project could set up the messages in a different way if it wants to. Davide --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html.
There are install instructions for PC, Mac OS X, and Unix users.
On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote:
On Friday 25 January 2008, William Stein wrote:
On Jan 24, 2008 8:52 PM, Timothy Clemans [EMAIL PROTECTED] wrote:
In the first versions of the Sage Notebook that message was actually
hidden.
(1) If one wants to disable the font message, comment out (with /* */) line
253 of SAGE_ROOT/devel/sage/sage/server/notebook/js.py and do sage -br:
/* jsMath = {Font: {Message: function () {}}} */
I do not think this should be the default in Sage. However, a nicer error
message would be good, which provides a link to a _local_ download page
for the jsmath fonts, which is much easier to understand and follow than
the official jsmath page.
(2) Any typesetting in the notebook basically looks like crap without the
jsmath fonts, so it would be bad to encourage people to completely remove
the warning message.
(3) The fonts are tiny (120KB) and fairly easy to install:
http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html
-- William
The fonts I downloaded are 80Mb!
And where should they be installed? I can't work out where the
notebook server expects to find them.
I thought they were included as part of the Sage distribution, anyway?
Bill
--
+---+
| Bill Purvis, Amateur Mathematician|
| email: [EMAIL PROTECTED] |
| http://bil.members.beeb.net |
+---+
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[sage-support] Re: Warnings from JsMath
On Jan 25, 2008 4:49 AM, bill purvis [EMAIL PROTECTED] wrote: On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. ??! There is nothing about server trees here: http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html You just download a 120KB zipped font file, extract it and install it as explained there. It has nothing whatever to do with servers. Where is the server tree for the notebook server? --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Friday 25 January 2008, Timothy Clemans wrote: See http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html. There are install instructions for PC, Mac OS X, and Unix users. On Jan 24, 11:45 pm, bill purvis [EMAIL PROTECTED] wrote: Yes, but what about Sage users? They say unpack them in the server tree. I know where my Apache server keeps things, and I've installed them in there. Where is the server tree for the notebook server? Bill -- +---+ | Bill Purvis, Amateur Mathematician| | email: [EMAIL PROTECTED] | | http://bil.members.beeb.net | +---+ --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
Bill wrote: Where is the server tree for the notebook server? The fonts are installed in the computer that is running the browser, not the one that is running the Sage server :-) The idea is that the browser loads the fonts from the hard drive that it was launched from when it visits a web page that uses jsMath. For example, here is a web page that uses jsMath and it will also show the warning message if your system does not have the fonts installed: http://www.math.union.edu/~dpvc/jsmath/examples/TeXbook16.html Ted --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
The control panel is the little tab at the bottom of the browser output which reads jsMath. Just click there and follow the links. I agree about the warning. It might be better as a browser alert, or maybe an embedded popup. On the other hand, this may be part of jsMath and not something which can be addressed in Sage without modifying jsMath, I don't know. -BFJ On Jan 24, 4:56 pm, bill.p [EMAIL PROTECTED] wrote: I find the warning messages that appear at the top of the notebook saying that JsMath isn't available annoying. There's an awful lot of disk space full of the JsMath stuff so it's definitely there. I find it especially annoying when I try to print something - I get a big red box at the top of my output saying: To print higher resolution math symbols, click the Hi_Res Fonts for Printing button on the jsMath control panel. What control panel? If you have to issue a warning, it should be on the 'print' window, before you commit to paper. Having seen the message, if you go ahead, it should not appear on the paper! Bill --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Warnings from JsMath
On Friday 25 January 2008, William Stein wrote:
On Jan 24, 2008 8:52 PM, Timothy Clemans [EMAIL PROTECTED] wrote:
In the first versions of the Sage Notebook that message was actually
hidden.
(1) If one wants to disable the font message, comment out (with /* */) line
253 of SAGE_ROOT/devel/sage/sage/server/notebook/js.py and do sage -br:
/* jsMath = {Font: {Message: function () {}}} */
I do not think this should be the default in Sage. However, a nicer error
message would be good, which provides a link to a _local_ download page
for the jsmath fonts, which is much easier to understand and follow than
the official jsmath page.
(2) Any typesetting in the notebook basically looks like crap without the
jsmath fonts, so it would be bad to encourage people to completely remove
the warning message.
(3) The fonts are tiny (120KB) and fairly easy to install:
http://www.math.union.edu/~dpvc/jsmath/download/jsMath-fonts.html
-- William
The fonts I downloaded are 80Mb!
And where should they be installed? I can't work out where the
notebook server expects to find them.
I thought they were included as part of the Sage distribution, anyway?
Bill
--
+---+
| Bill Purvis, Amateur Mathematician|
| email: [EMAIL PROTECTED] |
| http://bil.members.beeb.net |
+---+
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To post to this group, send email to sage-support@googlegroups.com
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