output to eps format

[Michael Wayne Goodman]

EPS (Encapsulated PostScript) format is a wrapper around PS-- it has size information (a bounding box, more specifically). This allows LaTeX to import the image and not worry about rescaling it, as the size is accurate (unlike, say, pixels, since it does not know the DPI). There are tools to convert ps to eps, but there might be a way to output directly to eps. Also, one would need to know size information (either pixels + DPI, or inches, cm, etc).

[Michael Wayne Goodman (goodmami)]

It seems (http://cairographics.org/documentation/cairomm/reference/classCairo_1_1PsSurface.html#a2424e42623eb0c410573b465f7b0f00) that Cairo lets you output to .eps files fairly easily. Also note that for Cairo's PsSurface method, the height and width parameters are in points, not pixels, which is probably why my CairoPlot charts look big in .ps files (eg 400 points (which I thought were pixels) is about 14.1cm). This makes me wonder if we should drop the .ps support and more fully support .eps files. I'd love to supply a patch, but I haven't considered all the consequences regarding plotting geometry.