On Fri, Apr 3, 2009 at 1:45 AM, Alain Baeckeroot <alain.baecker...@laposte.net> wrote: > Hello > > I'm usng plplot since several days, and i need to plot several lines > on one graph (lets say one dotted red, one thick green, one dashed blue). > Is there a function to display the legend showing colored line (with > proper style) and a text : > --- (blue) "Var 1" > ... (red) "Var 2" > === (green) "Var 3" > > or do i need to build it by myself ? > > Alain.
Alain, There is not a legend function in the core library. If you do write something for this, plgchr (get character height) may be useful for scaling the spacing between legend entries. The attached file has a simple if naively implemented legend function I wrote some time ago using the OCaml PLplot bindings. "character_height_wc" gets the text height in plot-world coordinates and "draw_legend" draws the legend. It may be useful if you wish to write your own. Best of luck! Hez -- Hezekiah M. Carty Graduate Research Assistant University of Maryland Department of Atmospheric and Oceanic Science
legend.ml
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