Manuel Metz wrote: > John Hunter wrote: > >> On Thu, Apr 3, 2008 at 8:40 AM, Manuel Metz <[EMAIL PROTECTED]> wrote: >> >>> Hi, >>> >>> in matplotlib 0.91 there was a function draw_point for the backends. >>> This seems to be gone (except for backend_agg2.py and backend_emf.py >>> !?). I guess it wasn't used very often; instead I see that there is now >>> a function draw_point in lines.py. Is it possible to re-add this >>> functionality to the backends ??? What I would need is a function that >>> draws a single pixel to a device. >>> >> The markerstyle for drawing a pixel is ',' and it is supported across >> backends AFAIK >> > > Hi John, > thank - that's done via the draw_point in lines.py, right? Now, as far > as I can see this function "emulates" to draw one pixel by drawing a > line of length 1 pixel. I was just wondering whether its worth to have a > draw_point method for (pixel-based) backends (png) that have an > intrinsic command to draw one pixel which might be more efficient. > In Agg at least, it won't be much more efficient -- the marker is drawn only once and then blitted multiple times. There's some overhead for the blitting loop, for sure, but not much -- probably not enough to warrant complicating the code. But, I say that without any experiments, so I'm happy to be proven wrong. > But if it's done with lines for all the backends, this means that > draw_point() can be removed from the two files backend_agg2.py and > backend_emf.py !? > Both of those backends are deprecated anyway -- probably best to just remove the backends altogether... ;)
Mike -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
