Hello, I've been using Matplotlib to generate postscript (eps) graphics which I import into my latex documents. I tried using Latex to typeset mathematical symbols on my plots using the steps described here:
http://www.scipy.org/Cookbook/Matplotlib/UsingTex The problem (I think) is that the eps files are genrated using dvipng, which results in ugly figures in the final PDF output. Is there a way to get Matplotlib to *not* use dvipng as the backend? For example. If I use the following simple script to generate a eps file ========================================= from matplotlib import rc import pylab from pylab import * import numarray as na params = { 'backend': 'ps', 'axes.titlesize': 24, 'axes.labelsize': 18, 'xtick.labelsize': 14, 'ytick.labelsize': 14, 'legend.fontsize': 14 } pylab.rcParams.update(params) #rc('text', usetex=True) N = 4 ind = arange(N) # the x locations for the groups width = 0.35 # the width of the bars data01 = (5, 10, 3, 2) data02 = (3, 7, 10, 6) title('Normal EPS Generation') p1 = bar(ind, data01, width, color='#CCCCFF') p2 = bar(ind+width, data02, width, color='#3399FF') xticks(ind+width, ('1', '2', '3', '4') ) xlim(-width,len(ind)) legend( (p1[0], p2[0]), ('data01', 'data02'), loc='upper right', shadow=False) pylab.savefig('test.eps') ============================================= I get a nice EPS file which looks good in my final PDF. Also, running ps2pdf and pdffonts shows that all the fonts are properly embedded in the eps file: ====================== $ ps2pdf test.eps $ pdffonts test.pdf name type emb sub uni object ID ------------------------------------ ------------ --- --- --- --------- NBOBDW+BitstreamVeraSans-Roman TrueType yes yes no 8 0 ======================= So as one would expect, the plots look good in the final PDF when zooming in and out because all the fonts are there. On the other hand, if I uncomment the "rc('text', usetex=True)" line in the script so that Latex is used for the fonts, I get the following when converting the resulting EPS file to PDF: ======================= $ ps2pdf test.eps $ pdffonts test.pdf name type emb sub uni object ID ------------------------------------ ------------ --- --- --- --------- ======================= As you can see, there's no font embedding in this case and the image looks bad when previewed in either Ghotsview (eps) or in PDF. Does anyone know if it's possible to get Matplotlib + Latex font embedding to work? Regards, Stephan ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
