Interesting.
I did not know of Krysalis Wings...
There's a difference between a graph plotter and a chart plotter: the
source data. To me a chart-plotter is fed by a bunch of numbers whereas
a graph-plotter is fed by a bunch of functions. From Krysalis Wings
site:
Note
"Charts" are what some office suites call "graphs". "Graphs", however,
have an entirely different meaning in mathematics. Hence we prefer to
use the term "charts".
You could say that "generating the numbers would be sufficient". It's
not.
A good graph plotter detects the cusps and other irregularities so that
it does not, for example, join -infty to +infty by a line like any
chart plotter would do. Caching the result for redraw (e.g. with good
Java 2D objects) might also be a challenge of a graph-component...
That characteristic is probably a very high requirement and is probably
the reason why it's mostly only found in more general purpose
computer-algebra-systems....
Rostyslav, does your plotter achieve this ?
(was it a graph-plotter or a chart-plotter?).
paul
Le 13 juin 05, à 22:13, J.Pietschmann a écrit :
Paul Libbrecht wrote:
I fear it's off-goal but we took some time here to look for a
graph-plotter, either Swing component or picture generator, that
would be open-source, tested on several platforms. Well... we found
none !
That's interesting. Is the evaluation published somewhere? Or
could you put it into the Wiki: the packages evaluated, and
why they didn't fit your requirements?
I was under the impression JFreeChart is almost as good or better
than gnuplot, but I never took a really close look at it. There's
also Krysalis Wings...
J.Pietschmann
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