[ePiX-users] New release (Version 1.1.18)

[Andrew D. Hwang]

NOTES

This release exposes the "affine" class (formerly pair_map, but completely 
re-written) and allows affine maps to be applied to screens. For example, 
if scr is a screen, the command

  scr.rotate(30).reflect(90, P(1,1));

rotates the contents of scr 30 angle units about the origin, then reflects 
across the line passing through (1,1) and making angle 90 with horizontal. 
(The border, backing, and bounding box are unaffected; this seems the 
"right" design decision.) Translation, rotation, reflection, scaling, and 
shearing maps are provided; affine maps can be composed and inverted. The 
sample file inverse.xp uses reflection to draw a cubic polynomial and the 
three maximal branches of inverse.

The README, INSTALL, and POST-INSTALL files have been updated.

Version 1.1.17 contained only one user-visible change for the Gentoo 
build, and was not announced on the list. Subsequent cleanup releases 
prior to Version 1.2 will also not be announced.


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