[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

New release (v0.8.11rc13)



This release is mostly bug fixes/cleanup/reorganization, but some of the
bugs were moderately large...

Aside from features that Really Should work as expected (cropping, 3-D ODE
plotting, Lines, filling of closed paths), there is improved incorporation
of pstricks code into the output (allowing color in filled regions, for
example) and the ability to rotate labels (using graphicx, not pstricks).

To use pstricks commands, put

  use_pstricks();

in the preamble, then use

  psset("<pstricks parameters>");
  fill_color("<pstricks color>");

and/or raw output to add pstricks code. Neither command has any effect
unless use_pstricks() has been issued. (The idea was to make it easy to
include or omit pstricks features in a file.) Coordinates in pstricks
commands are Cartesian, as usual.

Label rotation is controlled with the command

  label_angle(t);

with t an angle in current angle units. The rotation angle stays in effect
until it's reset or the file ends.

Data plotting has been factored out, and is missing for now. I hope to
have it restored in a week or so. (And I expect that to be the last major
change for 0.8.11.)

Finally, there's a command "follow()" (suggested by Jorge Magalhães) that
accepts the same arguments as ode_plot and returns the result of flowing
under the given vector field for the specified time; labels, arrowheads,
and other markers can be put at a specified location along a flow line.

(Combining these features, it's a straightforward exercise to print a
phrase along a flow line :)


Andrew D. Hwang			ahwang@mathcs.holycross.edu
Department of Math and CS	http://math.holycross.edu/~ahwang
College of the Holy Cross	(508) 793-2458 (Office: 320 Swords)
Worcester, MA, 01610-2395	(508) 793-3530 (fax)