On Sun, 31 Jul 2011 Michael Sharpe submitted an update to the
pst-bspline
package.
Summary description: Draw cubic B-spline curves using PSTricks macros. License type: lppl
Announcement text: ----------------------------------------------------------------------
This version adds a number of new macros that allow B-spline curves to be used in the same manner as parametric curves and, in some circumstances, like graphs of functions.
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This package is located at http://mirror.ctan.org/graphics/pstricks/contrib/pst-bspline . More information is at http://www.ctan.org/pkg/pst-bspline (if the package is new it may take a day for that information to appear). We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
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Thanks for the upload.
For the CTAN Team Rainer Schöpf