pstricks-add 3.32 (13may09)

git-svn-id: svn://tug.org/texlive/trunk@13185 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 43 insertions, 5 deletions

diff --git a/Master/texmf-dist/doc/generic/pstricks-add/Changes b/Master/texmf-dist/doc/generic/pstricks-add/Changes
index 9b52ca56881..428a54f158f 100644
--- a/Master/texmf-dist/doc/generic/pstricks-add/Changes
+++ b/Master/texmf-dist/doc/generic/pstricks-add/Changes
@@ -1,4 +1,4 @@
-%% $Id: Changes 114 2009-04-24 19:25:37Z herbert $
+%% $Id: Changes 115 2009-04-29 08:19:40Z herbert $
 %%
 pstricks-add.pro ----------- 
  v 0.22 2009-03-17 - add LineByHand stuff
@@ -36,7 +36,10 @@ pstricks-add.sty ----------- (hv)
 
 
 pstricks-add.tex ----------- (Dominik Rodriguez/hv)
- v 3.31  2009-04-24 - added \pstFPDiv for division int(#1=#2/#3)
+ v 3.32  2009-05-11 - added psTangentLine for a curve of three points
+                      Tnormal option is valid
+                    - load pst-math for equation solver
+ v 3.31  2009-04-29 - added \pstFPDiv for division int(#1=#2/#3)
                     - added axes style "polar" \psaxes[axesstyle=polar](5,5)
                     - fix trailing space with yAxisLabel
                     - added option decimalSeparator to allow special symbols
diff --git a/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.pdf b/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.pdf
index 954c14cf845..ac831dfc841 100644
--- a/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.pdf
+++ b/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.pdf
diff --git a/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.tex b/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.tex
index b1408858a32..353adf55ae6 100644
--- a/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.tex
+++ b/Master/texmf-dist/doc/generic/pstricks-add/pstricks-add-doc.tex
@@ -5135,6 +5135,7 @@ as for the x-axis.
 \end{psgraph}
 \end{center}
 
+\resetOptions
 \begin{lstlisting}
 \readdata{\data}{demo1.data}
 \pstScalePoints(1,0.000001){}{}% (x,y){additional x operator}{y op}
@@ -5175,6 +5176,7 @@ In the following example, the y unit gets the same value as the one for the x-ax
   \listplot[linecolor=red, linewidth=2pt, showpoints=true]{\data}
 \end{psgraph}
 \end{center}
+\resetOptions
 
 \begin{lstlisting}
 \readdata{\data}{demo1.data}
@@ -5201,6 +5203,7 @@ In the following example, the y unit gets the same value as the one for the x-ax
 
 %-----------------------------------------------------------------------------
 
+\resetOptions
 \begin{center}
 \readdata{\data}{demo1.data}
 \pstScalePoints(1,0.2){}{log}
@@ -5210,6 +5213,9 @@ In the following example, the y unit gets the same value as the one for the x-ax
 \endpsgraph
 \end{center}
 
+
+
+
 \begin{lstlisting}
 \readdata{\data}{demo1.data}
 \pstScalePoints(1,0.2){}{log}
@@ -5221,17 +5227,21 @@ In the following example, the y unit gets the same value as the one for the x-ax
 
 %-----------------------------------------------------------------------------
 
+\resetOptions
 \begin{LTXexample}[pos=t,preset=\centering]
 \readdata{\data}{demo0.data}
 \psset{lly=-0.75cm,ury=0.5cm}
 \pstScalePoints(1,1){}{log}
 \begin{psgraph}[arrows=->,Dx=0.5,ylogBase=10,Oy=-1,xsubticks=10,%
      ysubticks=2](0,-3)(3,1){12cm}{4cm}
-  \listplot[linecolor=red,linewidth=2pt,showpoints=true,plotstyle=LineToXAxis]{\data}
+  \psset{Oy=-2}% must be global
+  \listplot[linecolor=red,linewidth=2pt,showpoints=true,
+    plotstyle=LineToXAxis]{\data}
 \end{psgraph}
 \end{LTXexample}
 
 
+\resetOptions
 \begin{LTXexample}[pos=t,preset=\centering]
 \psset{lly=-0.75cm,ury=0.5cm}
 \readdata{\data}{demo0.data}
@@ -5242,7 +5252,9 @@ In the following example, the y unit gets the same value as the one for the x-ax
 \end{LTXexample}
 
 
+
 %-----------------------------------------------------------------------------
+\resetOptions
 \begin{center}
 \readdata{\data}{demo2.data}%
 \readdata{\dataII}{demo3.data}%
@@ -5270,6 +5282,7 @@ In the following example, the y unit gets the same value as the one for the x-ax
 \end{lstlisting}
 %-----------------------------------------------------------------------------
 
+\resetOptions
 %\begin{LTXexample}[pos=t,preset=\centering]
 \begin{center}
 \readdata{\data}{demo2.data}%
@@ -5299,6 +5312,7 @@ In the following example, the y unit gets the same value as the one for the x-ax
 %\newpage
 An example with ticks on every side of the frame and filled areas:
 
+\resetOptions
 \begin{center}
 \def\data{0 0 1 4 1.5 1.75 2.25 4 2.75 7 3 9}
 \psset{lly=-0.5cm}
@@ -5363,7 +5377,6 @@ can be outside the visible \Lenv{pspicture} environment
 
 \medskip
 \resetOptions
-
 \begin{center}
 \readdata{\data}{demo2.data}%
 \readdata{\dataII}{demo3.data}%
@@ -5524,7 +5537,29 @@ the mathematical function in postfix or algebraic notation (with
 
 \clearpage
 %--------------------------------------------------------------------------------------
-\section{\nxLcs{psplotTangent} and option \nxLkeyword{Tnormal}}
+
+\section{Plotting tangent lines}
+There are two macros for plotting a tangent line or the tangent normal line.
+The first one is \Lcs{psTangentLine} which expects three pairs of coordinates,
+a $x$ and a $dx$ value. The second one is \Lcs{psplotTangent} which expects 
+a function for the curve. 
+
+\subsection{\nxLcs{psTangentLine} and option \nxLkeyword{Tnormal}}
+
+\begin{BDef}
+\Lcs{psTangentLine}\OptArgs\Largr{\coord1}\Largr{\coord2}\Largr{\coord3}\Largb{x}\Largb{dx}
+\end{BDef}
+
+\begin{LTXexample}[pos=t,preset=\centering,wide]
+\psset{unit=2}
+\begin{pspicture}[showgrid=true](1,-1)(4,1)
+  \pscurve[showpoints=true](2.1,-0.2)(2.5,0.2)(3.2,0.235)(3.8,-0.2)
+  \psTangentLine[Tnormal,arrows=->,linecolor=red](2.5,0.2)(3.2,0.235)(3.8,-0.2){3}{0.1}
+  \psTangentLine[arrows=<->,linecolor=blue](2.5,0.2)(3.2,0.235)(3.8,-0.2){3}{0.5}
+\end{pspicture}
+\end{LTXexample}
+
+\subsection{\nxLcs{psplotTangent} and option \nxLkeyword{Tnormal}}
 %--------------------------------------------------------------------------------------
 There is an additional option, named \Lkeyword{Derive} for an
 alternative function (see following example) to calculate the