I have gotten things to the point where the differences are due to round off error, the rendering of non-solid lines, and plot symbols generated by commands that utilize plhrsh (i.e. plsym, plpoin, and plpoin3).
Rendering non-solid lines I can't think of a simple solution to this problem without a major change. As it currently stands, the end user would need to look very closely to see any differences. It really is a problem if you comparing output files. Plot Symbol Issue With the current architecture, I can either store them as a text string (if there is a unicode representation) or as rendered vectors. However, if they are stored as a text string, there is no way to distinguish points from the other strings. Some drivers, like ps, set dev_hrshsym to true, which forces the symbols to be rendered as vectors (perhaps they don't have the hershey font). When rendering a metafile on such a device the plot symbols might not get rendered correctly (or at all). Options 1) Let the plot symbols get rendered as vectors Pros: Plot metafiles will always work regardless of the output device Cons: For devices that have dev_hrshsym = 0, a rendered metafile will be different 2) Let the plot symbols be represented as text strings Pros: Better quality output on devices that have dev_hrshym = 0 Cons: For devices that have dev_hrshsym = 1 (gcw, pdf, ps, psttf, wxwidgets_dev), a metafile might not render correctly 3) Represent plot symbols as a different operation in the metafile Pros: Will work correctly regardless of the dev_hrshsym setting Cons: Some changes to plsym are required Incidentally, I discovered some issues in the unicode encoding in plP_text that was doubly rendering strings on the cairo device and I have fixed that issue. Also, I believe I have identified the resizing issue on the xcairo device and I can generate a fix for that problem (if my hypothesis is correct). ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
