On Tue, Feb 17, 2009 at 4:59 PM, Werner Smekal <sme...@iap.tuwien.ac.at> wrote:
> should we apply for Google summer of Code?
>
> http://code.google.com/soc/2008/
>
> what we need are good ideas, mentors and students who are willing to
> write code.
>
> Just an idea, this could be a chance to improve PLplot considerably.

I don't know if this would be outside of the scope of a Summer of Code
project, but one of the TODO items I noticed when I started working
with PLplot (thought I can't find it now) is making a switch from
short integers to floating point values for the internal
representation of data.  This, or something to start progress toward
this, may be a good (if large) project.  It could focus on just the
library internals and one output driver.  Postscript may be a good
target for a reference driver since it is currently used for output
testing.  The other drivers and plotting functions could be adapted
after the SoC project if needed.

A simpler project would be a suite of high-level functions: color
bars, box and whisker plots, etc.  Some more 3D plotting might be
possible as well, such as a 3D plimage-like function or general 3D
solids (examples from OpenDX at [1] and [2]).

The ability to rasterize specific plot function(s) in vector file
formats would be useful in some cases as well.  Example 20 is a good
case for this as, in its current form, its Postscript output is
enormous.  This process is fairly simple for Cairo devices (I've sent
a separate email about this), but it would be nice if the non-Cairo
PS, PDF and SVG devices could support this.

I think the short to PLFLT (or some other float/double #define'd type)
conversion would be quite useful and could potentially simplify areas
of PLplot's internals.  I don't know how realistic it would be to
complete, or at least make a reasonable start, on a change like this.

Hez

[1] - http://www.opendx.org/inaction/weather/images/original/class4.jpg
[2] - http://www.opendx.org/inaction/astronomy/images/original/radio_sphere.jpg

-- 
Hezekiah M. Carty
Graduate Research Assistant
University of Maryland
Department of Atmospheric and Oceanic Science

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