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%% BEGIN pst-coil.doc
\def\fileversion{0.93a}
\def\filedate{93/03/12}
%%
%% For stroking and filling characters with PSTricks' line and fill styles.
%%
%% COPYRIGHT 1993, by Timothy Van Zandt, tvz@Princeton.EDU
%% See pstricks.doc or pstricks.tex for copying restrictions.
%%
%% See the PSTricks read-me file and the User's Guide for documentation.
%
% **************************************************************************
% This is `pst-coil.doc'. Use as is, or create a header file and stripped
% input file with pst-make.tex. See the PSTricks read-me file for details.
% **************************************************************************
\message{ v\fileversion, \filedate}
\csname PSTcoilsLoaded\endcsname
\let\PSTcoilsLoaded\endinput
\ifx\PSTricksLoaded\endinput\else
\def\next{\input pstricks.tex}\expandafter\next
\fi
\edef\TheAtCode{\the\catcode`\@}
\catcode`\@=11
\pst@ATH<\% Version \fileversion, \filedate.>
\pst@ATH<\% For use with \pstdriver.>
\pst@ATH</tx@CoilDict 40 dict def tx@CoilDict begin>
\ifx\pst@useheader\iftrue
\pstheader{pst-coil.pro}
\edef\pst@theheaders{\pst@theheaders,pst-coil.pro}
\def\pst@coildict{tx@CoilDict begin }
\else
\def\pst@coildict{%
/tx@CoilDict where
{ pop tx@CoilDict begin}
{ userdict begin /tx@CoilDict 40 dict def end
tx@CoilDict begin }
ifelse }
\fi
\def\psset@coilwidth#1{\pst@getlength{#1}\psk@coilwidth}
\psset@coilwidth{1cm}
\def\psset@coilheight#1{\pst@checknum{#1}\pscoilheight}
\psset@coilheight{1}
\def\psset@coilarmA#1{\pst@getlength{#1}\psk@coilarmA}
\def\psset@coilarmB#1{\pst@getlength{#1}\psk@coilarmB}
\def\psset@coilarm#1{%
\pst@getlength{#1}\psk@coilarmA
\let\psk@coilarmB\psk@coilarmA}
\psset@coilarm{.5cm}
\def\psset@coilaspect#1{\pst@getangle{#1}\psk@coilaspect}
\psset@coilaspect{45}
\def\psset@coilinc#1{\pst@getangle{#1}\psk@coilinc}
\psset@coilinc{10}
\def\pscoil{\def\pst@par{}\pst@object{pscoil}}
\def\pscoil@i{\pst@getarrows\pscoil@ii}
\def\pscoil@ii(#1){%
\@ifnextchar(%
{\pscoil@iii{1}(#1)}%
{\pscoil@iii{\z@}(0,0)(#1)}}
\def\pscoil@iii#1(#2)(#3){%
\begin@OpenObj
\pst@getcoor{#2}\pst@tempa
\pst@getcoor{#3}\pst@tempb
\pst@optcp{#1}\pst@tempa
\addto@pscode{%
\pst@tempa \pst@tempb
\psk@coilwidth \pscoilheight
\psk@coilarmA \psk@coilarmB
\psk@coilaspect \psk@coilinc
\pst@coildict \tx@Coil end}%
\showpointsfalse
\end@OpenObj}
\pst@def{CoilLoop}<%
/t ED
t sin AspectSin mul t 180 div AspectCos mul add
t cos
lineto>
\pst@def{Coil}<%
/Inc ED
dup sin /AspectSin ED cos /AspectCos ED
/ArmB ED /ArmA ED
/h ED /w ED
/y1 ED /x1 ED /y0 ED /x0 ED
x0 y0 translate
y1 y0 sub x1 x0 sub
2 copy \tx@Pyth /TotalLength ED
\tx@Atan rotate
/BeginAngle ArmA AspectCos \tx@Div w h mul \tx@Div 360 mul def
/EndAngle
TotalLength ArmB sub AspectCos \tx@Div
w h mul \tx@Div 360 mul
def
1 0 0 0 ArrowA
ArmA 0 lineto
/mtrx CM def
w h mul 2 \tx@Div w 2 \tx@Div scale
BeginAngle Inc EndAngle { \tx@CoilLoop } for
EndAngle \tx@CoilLoop
mtrx setmatrix
TotalLength ArmB sub 0 lineto
CP TotalLength 0 ArrowB
lineto>
\def\psCoil{\def\pst@par{}\pst@object{psCoil}}
\def\psCoil@i#1#2{%
\begin@AltOpenObj
\showpointsfalse
\pst@getangle{#1}\pst@tempa
\pst@getangle{#2}\pst@tempb
\addto@pscode{%
\pst@tempa
\pst@tempb
\psk@coilwidth
\pscoilheight
\psk@coilaspect
\psk@coilinc
\pst@coildict \tx@AltCoil end
\@nameuse{psls@\pslinestyle}}%
\end@OpenObj}
\pst@def{AltCoil}<%
/Inc ED
dup sin /AspectSin ED cos /AspectCos ED
/h ED /w ED
/EndAngle ED /BeginAngle ED
/mtrx CM def
w h mul 2 \tx@Div w 2 \tx@Div scale
BeginAngle sin AspectSin mul BeginAngle 180 div AspectCos mul add
BeginAngle cos
/lineto load stopped { moveto } if
BeginAngle Inc EndAngle { \tx@CoilLoop } for
EndAngle \tx@CoilLoop
mtrx setmatrix>
\def\pszigzag{\def\pst@par{}\pst@object{pszigzag}}
\def\pszigzag@i{\pst@getarrows\pszigzag@ii}
\def\pszigzag@ii(#1){%
\@ifnextchar({\pszigzag@iii{1}(#1)}{\pszigzag@iii{\z@}(0,0)(#1)}}
\def\pszigzag@iii#1(#2)(#3){%
\begin@OpenObj
\pst@getcoor{#2}\pst@tempa
\pst@getcoor{#3}\pst@tempb
\pst@optcp{#1}\pst@tempa
\addto@pscode{%
\pst@tempa
\pst@tempb
\pscoilheight
\psk@coilwidth
\psk@coilarmA
\psk@coilarmB
\pst@coildict \tx@ZigZag end
\psline@iii
\tx@Line}%
\end@OpenObj}
\pst@def{ZigZag}<%
/ArmB ED /ArmA ED
2 div /w ED w mul /h ED
/y1 ED /x1 ED /y0 ED /x0 ED
x1 y1 translate
y0 y1 sub x0 x1 sub
2 copy \tx@Pyth /TotalLength ED
\tx@Atan rotate
TotalLength ArmA sub ArmB sub dup h div cvi /n ED
n h mul sub 2 div dup ArmA add /ArmA ED ArmB add /ArmB ED
/x ArmB h 2 div add def
mark
0 0 ArmB 0
n { x w /w w neg def /x x h add def } repeat
TotalLength ArmA sub 0 TotalLength 0>
\def\nccoil{\def\pst@par{}\pst@object{nccoil}}
\def\nccoil@i{\check@arrow{\nccoil@ii}}
\def\nccoil@ii#1#2{\nc@object{#1}{#2}{.5}{%
\tx@NCCoor
tx@Dict begin
\psk@coilwidth \pscoilheight
\psk@coilarmA \psk@coilarmB
\psk@coilaspect \psk@coilinc
\pst@coildict \tx@Coil end
end}}
\def\pccoil{\def\pst@par{}\pst@object{pccoil}}
\def\pccoil@i{\pc@object\nccoil@ii}
\def\nczigzag{\def\pst@par{}\pst@object{nczigzag}}
\def\nczigzag@i{\check@arrow{\nczigzag@ii}}
\def\nczigzag@ii#1#2{\nc@object{#1}{#2}{.5}{%
\tx@NCCoor
tx@Dict begin
\pscoilheight
\psk@coilwidth
\psk@coilarmA
\psk@coilarmB
\pst@coildict \tx@ZigZag end
\psline@iii
\tx@Line
end}}
\def\pczigzag{\def\pst@par{}\pst@object{pczigzag}}
\def\pczigzag@i{\pc@object\nczigzag@ii}
\pst@ATH<end>
\catcode`\@=\TheAtCode\relax
\endinput
%% END pst-coil.doc
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