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author | Karl Berry <karl@freefriends.org> | 2008-12-14 00:33:10 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2008-12-14 00:33:10 +0000 |
commit | 39bd5e5b62002cfa5d3183fc0492f950d5db7002 (patch) | |
tree | c1c7cace60faea582f56dd0348ec688c07a896c9 /Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex | |
parent | ccfef10698e5e6e1afc70cb15e03ae531a376de5 (diff) |
pst-bspline update (13dec08)
git-svn-id: svn://tug.org/texlive/trunk@11611 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex')
-rw-r--r-- | Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex b/Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex index c8c12d2f9a5..5df2756a987 100644 --- a/Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex +++ b/Master/texmf-dist/doc/generic/pst-bspline/pst-bspline-doc.tex @@ -241,6 +241,12 @@ will construct a sequence {\tt SB0} $\cdots ${\tt SB4} of nodes at the B-spline \begin{verbatim} \psBsplineNodes{SB}{4} \end{verbatim} +If you don't care about keeping track of the internal operations and names for nodes, you may generate the curve directly with, for example, +\begin{verbatim} +\psbspline(0,0)(.5,.1)(1.5,.6)(2.5,1.4)(3.5,1.8)(4.5,1.7)% +(5.8,1.0)(7.5,.25)(10,0) +\end{verbatim} + \subsection{Closed (periodic) case} We turn now to the periodic uniform B-spline curve interpolating $n$ points $S_0$,...,$S_{n-1}$. Extend the sequence periodically with period $n$, so that $S_n=S_0$, $S_{n+1}=S_1$, $S_{-1}=S_{n-1}$, and so on. In order to find the periodic control points $B_k$, we have to solve the $n$ equations \begin{align*} |