http://matplotlib.sourceforge.net What's new in matplotlib 0.42 EPS output from PS backend Just add an eps extension PS and EPS save from GTK and WX backends with bugs fixed A few of the bugs that were lingering in the PS output from the GTK backend have been cleared up. A fairly substantial refactoring of the Text class enabled this. Text is now backend independent and behaves like the other artists in the figure (lines, patches, etc). Additionally, PS and EPS save from WX backend work Object picker example The file examples/object_picker.py is a template showing how to select objects in the figure with the mouse(eg, text, lines). If you click on the line, a properties dialog will pop up. You can edit the line properties. This is just a template for those who want to develop a GUI properties dialog. If interested, contact the mailing list. It would be straight forward to extend this example to allow you to move objects in the figure, etc
John Hunter wrote: >>>>>>"LUK" == LUK ShunTim <shu...@po...> writes: > > > LUK> Yes. I did "python log_demo.py", got the gtk GUI and clicked > LUK> on the "save" icon to produce the eps file. So it is as you > LUK> said, it comes from the GUI backend. No warning when I did > LUK> "python log_demo.py -dPS" > > OK, now we at least know where the problem is. I don't get such an > error message on my system (rhl9, pygtk-2.0.0). What platform are you > on, and what versions of GTK and pygtk are you running? > > JDH > > > W2K, Enthought python 2.3, pygtk 2.0, gtk 2.0 Regards, ST
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: >> OK, now we at least know where the problem is. I don't get >> such an error message on my system (rhl9, pygtk-2.0.0). What >> platform are you on, and what versions of GTK and pygtk are you >> running? JDH >> LUK> W2K, Enthought python 2.3, pygtk 2.0, gtk 2.0 Hi Luk, I get the same error message on my WinXP platform. I recently decoupled the text code from the various backends (gtk, ps, etc). In the past, each backend specified their own default font, and this is no longer possible since text is now backend independent. On the upside, this enables you to save PS or EPS from a GTK or WX GUI window. On the downside, this exposes the problem that font choosing is not backend independent. We've talked a number of times about the importance of this on matplotlib-devel, but haven't done the dirty work of actually getting it implemented. So in a nutshell, there is nothing wrong with your setup. We on the development side just need to spend some time getting fonts standardized across backends. Ie, we need to agree on a bare minimum number of fonts with standard names that we can provide on all the backends, so scripts using these names will work on all the backends. This is complicated by the fact that most fonts are proprietary, so we can't ship them or guarantee their existence on a given system. It's on the list of things to do. If this proves to be a major impediment for you in the mean time, don't hesitate to bring it up again. Sometimes those who complain the loudest get their bugs fixed the soonest. JDH
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: >> OK, now we at least know where the problem is. I don't get >> such an error message on my system (rhl9, pygtk-2.0.0). What >> platform are you on, and what versions of GTK and pygtk are you >> running? JDH LUK> W2K, Enthought python 2.3, pygtk 2.0, gtk 2.0 Tracked this one down. Apparently the latest version of GTK for windows does different font aliasing. This is controlled by the file c:\gtk\etc\pango\pango.aliases Try adding the line: times = "times new roman,angsana new,mingliu,simsun,gulimche,ms gothic,latha,mangal,code2000" If you get other font messages, adding more font aliases to this file may help. I'm making some changes in the gtk backend - mapping times -> serif, so in the next release of matplotlib this should be fixed automagically. JDH
John Hunter wrote: > http://matplotlib.sourceforge.net > > What's new in matplotlib 0.42 > > EPS output from PS backend > > Just add an eps extension > > PS and EPS save from GTK and WX backends with bugs fixed > [snipped] Thanks very much. I did an upgrade via CVS and the eps output works fine. A slight glitch though. I think John has changed the AFMPATH environmental variable to MATPLOTLIBDATA (which is a more appropriate name) so people installing matplotlib in non-default places will have to set it instead. Regards, ST --
John Hunter wrote: > http://matplotlib.sourceforge.net > > What's new in matplotlib 0.42 > > EPS output from PS backend > > Just add an eps extension > > PS and EPS save from GTK and WX backends with bugs fixed > [snipped] Thanks very much. I did an upgrade via CVS and the eps output works fine. A slight glitch though. I think John has changed the AFMPATH environmental variable to MATPLOTLIBDATA (which is a more appropriate name) so people installing matplotlib in non-default places will have to set it instead. Regards, ST --
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: LUK> A slight glitch though. I think John has changed the AFMPATH LUK> environmental variable to MATPLOTLIBDATA (which is a more LUK> appropriate name) so people installing matplotlib in LUK> non-default places will have to set it instead. ps backend is setup to use both, the idea that you may have some AFM files independent of matplotlib, and some that ship with matplotlib. The MATPLOTLIBDATA is indeed for people installing in nonstandard places. But if AFMPATH is not working for you, I need to know since this is a bug. Thanks! John Hunter
John Hunter wrote: >>>>>>"LUK" == LUK ShunTim <shu...@po...> writes: > > > LUK> A slight glitch though. I think John has changed the AFMPATH > LUK> environmental variable to MATPLOTLIBDATA (which is a more > LUK> appropriate name) so people installing matplotlib in > LUK> non-default places will have to set it instead. > > ps backend is setup to use both, the idea that you may have some AFM > files independent of matplotlib, and some that ship with matplotlib. > The MATPLOTLIBDATA is indeed for people installing in nonstandard > places. But if AFMPATH is not working for you, I need to know since > this is a bug. > > Thanks! > John Hunter > I think that's an oversight of mine. I had AFMPATH set to point to the directory which holds the afm, xpm files etc before I upgrade. After upgrading I got the error described above and I found out that I have to set MATPLOTLIBDATA. I did not realize that AFMPATH is *still* used. I have tex installed so I hope I can use quite a lot more fonts now. Is the path to the .afm files all that is needed? Do I have to set anything else, for example where to find the pfa/pfb files? I found that matplotlib spits out warnings like ** (log_demo.py:1264): WARNING **: Couldn't load font "Times 9.599609375" falling back to "Sans 9.599609375" Regards, ST
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: LUK> I have tex installed so I hope I can use quite a lot more LUK> fonts now. Is the path to the .afm files all that is needed? LUK> Do I have to set anything else, for example where to find the LUK> pfa/pfb files? I found that matplotlib spits out warnings LUK> like All matplotlib needs is the *.afm files. It uses this to compute text lengths, etc, for layout. You'll just need to provide the right font names to the text commands, perhaps using a font dictionary as in examples/text_themes.py. Your postscript output device will still need to know about the fonts of course. Note that I use a custom font matching scheme in backend_ps and I certainly don't claim that it is ideal. So if you encounter strange behavior, let me know. LUK> ** (log_demo.py:1264): WARNING **: Couldn't load font "Times LUK> 9.599609375" falling back to "Sans 9.599609375" This doesn't look like a backend_ps error. Have you upgraded to matplotlib-0.42.2? I've reworked text handling in the backends so it's hard for me to compare what I've got now without knowing what version of matplotlib you're using. JDH
John Hunter wrote: >>>>>>"LUK" == LUK ShunTim <shu...@po...> writes: > > > LUK> I have tex installed so I hope I can use quite a lot more > LUK> fonts now. Is the path to the .afm files all that is needed? > LUK> Do I have to set anything else, for example where to find the > LUK> pfa/pfb files? I found that matplotlib spits out warnings > LUK> like > > All matplotlib needs is the *.afm files. It uses this to compute text > lengths, etc, for layout. You'll just need to provide the right font > names to the text commands, perhaps using a font dictionary as in > examples/text_themes.py. Your postscript output device will still > need to know about the fonts of course. Note that I use a custom font > matching scheme in backend_ps and I certainly don't claim that it is > ideal. So if you encounter strange behavior, let me know. > > LUK> ** (log_demo.py:1264): WARNING **: Couldn't load font "Times > LUK> 9.599609375" falling back to "Sans 9.599609375" > > This doesn't look like a backend_ps error. Have you upgraded to > matplotlib-0.42.2? I've reworked text handling in the backends so > it's hard for me to compare what I've got now without knowing what > version of matplotlib you're using. > > JDH > CVS. ST
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: LUK> ** (log_demo.py:1264): WARNING **: Couldn't load font "Times LUK> 9.599609375" falling back to "Sans 9.599609375" LUK> CVS. Are you sure you are getting this message from the PS backend??? This looks more like a message coming from one of the GUI backends. I don't generate any error messages like this in matplotlib. With a fresh cvs checkout: hunter:~/tmp/matplotlib> grep -ri 'falling back to' . turns up nothing. JDH
John Hunter wrote: >>>>>>"LUK" == LUK ShunTim <shu...@po...> writes: > > LUK> ** (log_demo.py:1264): WARNING **: Couldn't load font "Times > LUK> 9.599609375" falling back to "Sans 9.599609375" > > LUK> CVS. > > Are you sure you are getting this message from the PS backend??? This > looks more like a message coming from one of the GUI backends. I > don't generate any error messages like this in matplotlib. > > With a fresh cvs checkout: > > hunter:~/tmp/matplotlib> grep -ri 'falling back to' . > > turns up nothing. > > JDH > > > > Yes. I did "python log_demo.py", got the gtk GUI and clicked on the "save" icon to produce the eps file. So it is as you said, it comes from the GUI backend. No warning when I did "python log_demo.py -dPS" Regards, ST --
>>>>> "LUK" == LUK ShunTim <shu...@po...> writes: LUK> Yes. I did "python log_demo.py", got the gtk GUI and clicked LUK> on the "save" icon to produce the eps file. So it is as you LUK> said, it comes from the GUI backend. No warning when I did LUK> "python log_demo.py -dPS" OK, now we at least know where the problem is. I don't get such an error message on my system (rhl9, pygtk-2.0.0). What platform are you on, and what versions of GTK and pygtk are you running? JDH