We went through this a few years ago on the Cairo mailing list. The short answer is you need to copy the fonts from mpl-data to C:\Windows\Fonts to correctly use Cairo.
The long answer: Cairo uses fontconfig for font lookup, which by default searches the system font directory (C:\Windows\Fonts). There is an fontconfig API to add another font directory to search, but it is not exposed to Python. The cairo guys don't want to expose it in pycairo because that API is not technically part of cairo, but there isn't a proper Python wrapper to fontconfig, so until one is created we're sort of left with our hands tied. This is probably worthy of a FAQ in the docs. Mike copyrig...@gmx.de wrote: > Hallo, > > I'm try to use MathTextParser output for cairo in my wxpython gui. Works well > under ubunutu linux (maybe dublicated font) but fails under windows > (screenshot: http://www.ubuntu-pics.de/bild/62985/auswahl_017_RC86gk.png ). > > How to tell cairo to use the font file from mpl-data? > > Here some code: > > from matplotlib.mathtext import MathTextParser > from matplotlib.font_manager import ttfFontProperty > import wx > import wx.lib.wxcairo > import cairo > > #... > MPC = MathTextParser("Cairo") > dc = wx.BufferedPaintDC(self) > ctx = wx.lib.wxcairo.ContextFromDC(dc) > #... > width, height, descent, glyphs, rects = > self.mathtext_parser.parse(r"$a_0+a_1\xi+a_2\xi^2+a_3\xi^3$",dpi,prop) > #... > > for font, fontsize, s, ox, oy in glyphs: > #... > fontProp = ttfFontProperty(font) > #... > ctx.select_font_face (fontProp.name, > self.fontangles [fontProp.style], > self.fontweights[fontProp.weight]) > > #... > ctx.show_text(s.encode("utf-8")) > #... > #... > > greetz > > Frank > > ------------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
