It's great to have narrowed this down! Unfortunately, with that #define removed, you will get lower quality fonts (the hinting will be more extreme, which causes the glyphs to often look too thin, or inconsistent.) See this thread for more information --
http://www.mail-archive.com/[EMAIL PROTECTED]/msg01480.html I'd hate to turn off this improvement because it doesn't work in some environments. I wonder if you wouldn't mind performing one more experiment... There is another define at the top of ft2font.cpp, "HORIZ_HINTING" that controls the amount of hinting subsampling. Currently it is set to 8, but I wonder if a lower value would work. Ideally, we want to set this as high as we can get away with. #define VERTICAL_HINTING #ifdef VERTICAL_HINTING #define HORIZ_HINTING 8 #else #define HORIZ_HINTING 1 #endif Would you mind trying other values and seeing if any work? If not, I'll probably take this question to the freetype mailing list now that we've narrowed the cause down to only a three line difference in the code. Cheers, Mike [EMAIL PROTECTED] wrote: > Le Friday 26 October 2007 11:22:06, vous avez écrit : >> Thanks for this information. It looks like the font outline data is >> somehow getting corrupted before freetype renders it. Again, however, I >> can't reproduce it on my machine (I've attached a copy of what it looks >> like for me), so I'm still pretty stumped. My suspicion is that it's a >> 64-bit vs. 32-bit problem since both people known to have trouble are on >> 64-bit platforms, and I am not. I have tried recompiling with gcc-4.2.2 >> and I still wasn't able to reproduce. > > I can imagine that it's difficult for you to debug something you cannot > reproduce. Just a remark I don't have 64-bits but a 32 so the problem is not > comming because of the plateforme. > >> One thing you could *try*, to rule out any recent changes to the glyph >> rendering, is to comment out this line near the top of src/ft2font.cpp: >> >> #define VERTICAL_HINTING >> >> as follows >> >> //#define VERTICAL_HINTING > > Yes it's doing the trick., I don't have anymore the problem. Thank you very > much. I have now the same result than you with the test I produce before. > >> Additional information: Are there any warnings produced when compiling >> ft2font.cpp? Can you send me your matplotlibrc file? > > just the classic one: > > cc1plus: warning: command line option "-Wstrict-prototypes" is valid for > Ada/C/ObjC but not for C++ > > Thank you very much. > > N. > >> Cheers, >> Mike >> >> [EMAIL PROTECTED] wrote: >>> Yep that can be a good idea. I don't know anything on how mathtext is >>> working but I'm not completely sure that the problem is with freetype >>> because sometime that can work. In reality every character I tested >>> worked but you have to put in a certain order. To understand a little bit >>> more what I try to say (very badly) see the script join and the figure. >>> >>> I hope that can help a little bit to try to find the reason of this >>> behaviour. >>> >>> N >>> >>> Le Thursday 25 October 2007 15:41:40 Michael Droettboom, vous avez écrit : >>>> Darren Dale wrote: >>>>> Hi Mike, >>>>> >>>>> On Tuesday 23 October 2007 09:05:56 am Michael Droettboom wrote: >>>>>> Unfortunately, I can't reproduce this on my machine even with the >>>>>> latest stable version of freetype-2.5.3 (which is the same version in >>>>>> Ubuntu Gutsy). >>>>> I think you mean freetype-2.3.5. I also have that version installed, >>>>> although the mpl setup script is reporting 9.16.3. >>>> Yes. freetype-2.3.5. There are arcane historical reasons I don't fully >>>> comprehend why the pkgconfig version doesn't match the release version >>>> (and why freetype2 is called freetype6 on Debian and derivatives)... >>>> but my numbers do match yours. >>>> >>>>>> The Ubuntu/Debian package of freetype has a lot of patches >>>>>> applied, and I don't know if they are causing this (but from the looks >>>>>> of them, I doubt it). >>>>>> >>>>>> Can you set debug.verbose to "annoying" and send me the output of your >>>>>> matplotlib run? I want to rule out any font-loading problems. >>>>> It's attached. I'm running 64bit gentoo, everything compiled with >>>>> gcc-4.2.2, in case its relevent. >>>> Always good to have more details, but I'm sort of at a loss on this one, >>>> especially since I can't reproduce it. >>>> >>>> Maybe we need to take a poll on this list of who is working and who >>>> isn't to see what the source of the breakage may be... >>>> >>>> Cheers, >>>> Mike >>>> >>>> ------------------------------------------------------------------------ > > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
