Thank you both for your fast replies. (Just an aside, plotting all the points is a quick way to detect outliers.)
Before I sent the email, I tried to find a simple raster command in matplotlib to do just that (convert the image to raster), but I could not find one in my search. Is there such a thing? Thanks again. c ----- Original Message ----- From: "Goyo" <goyod...@gmail.com> To: "Christopher Kuhlman" <ckuhl...@vbi.vt.edu> Cc: "matplotlib-users" <matplotlib-users@lists.sourceforge.net> Sent: Saturday, March 22, 2014 4:11:08 PM Subject: Re: [Matplotlib-users] how to reduce the file size of plots generated with matplotlib 2014-03-22 20:23 GMT+01:00 Christopher Kuhlman <ckuhl...@vbi.vt.edu>: [...] > For example, most recently, I am plotting 3 data sets; each data set has > about 90,000 points. If I plot all three sets in one PDF figure, the file > size is over 2MB. > This seems absurd to me. I used R plotting for many years (again, my own > homegrown code, for 6 years) and never had this issue, and I was making these > kinds of plots/figures. > > I thought it may be a vector/raster issue, but the following web page says > that PDF are generated as vector image, which, to my understanding (which > could be wrong), is the more compact format. > http://matplotlib.org/faq/usage_faq.html [...] Roughly speaking, size of vector files depend on the number of points while size of raster files depends on the number of pixels. For your use case (many points, small images) raster output should be more compact. Goyo ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
