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%% BEGIN pst-grad.tex
%%
%% Gradient fillstyle with PSTricks.
%% See the PSTricks User's Guide for description.
%% This uses the header file `pst-grad.pro'.
%%
%% Based on some EPS files by leeweyr!bill@nuchat.sccsi.com (W. R. Lee).
%%
\def\fileversion{1.04}
\def\filedate{2004/06/24}
%%
%% COPYRIGHT 1993, 1994, 1999 by Timothy Van Zandt, tvz@nwu.edu.
%%
%% This program can be redistributed and/or modified under the terms
%% of the LaTeX Project Public License Distributed from CTAN
%% archives in directory macros/latex/base/lppl.txt.
%%
%% version 1.04 prepared by Herbert Voss <voss _at_ pstricks.de>
%%
%% This defines a new fill style, "gradient", for use with PSTricks,
%% which has gradiated color. The following parameters are used:
%%
%% gradbegin=color : Beginning color.
%% gradend=color : Final color.
%% gradlines=int : Number of lines to use. The higher the number,
%% the slower the rendering.
%% gradmidpoint=num : Gradient color goes from gradbegin to gradend,
%% and then back to beginning. Midpoint (point
%% where "gradend" color appears, is gradmidpoint
%% from the top. (0 <= Gmidpoint <= 1).
%% gradangle=angle : Rotate image by angle.
%% GradientCircle=true : Instead of a linear a circled gradient is build.
%% (version 1.04)
%% GradientPos=(x,y) : the center of the circled gradient
%% (version 1.04)
%% GradientScale=float : scaling factor of the circled gradient
%% (version 1.04)
%%
\message{ v\fileversion, \filedate}
\csname GradientLoaded\endcsname
\let\GradientLoaded\endinput
\ifx\PSTricksLoaded\endinput\else
\def\next{\input pstricks.tex }\expandafter\next
\fi
\edef\TheAtCode{\the\catcode`\@}
\catcode`\@=11
\pstheader{pst-grad.pro}
\newrgbcolor{gradbegin}{0 .1 .95}
\def\psset@gradbegin#1{\pst@getcolor{#1}\psgradbegin}
\psset@gradbegin{gradbegin}
\newrgbcolor{gradend}{0 1 1}
\def\psset@gradend#1{\pst@getcolor{#1}\psgradend}
\psset@gradend{gradend}
\def\psset@gradlines#1{%
\pst@getint{#1}\psgradlines
\ifnum\psgradlines<2
\@pstrickserr{gradlines must be at least 2}\@epha
\def\psgradlines{2 }%
\fi}
\psset@gradlines{300}
\def\psset@gradmidpoint#1{\pst@checknum{#1}\psgradmidpoint}
\psset@gradmidpoint{.9}
\def\psset@gradangle#1{\pst@getangle{#1}\psk@gradangle}
\psset@gradangle{0}
% Denis Girou - April 1998 ------- patch 2 (hv)
% To define the gradient as linear or as circle
\newif\ifGradientCircle
\def\psset@GradientCircle#1{\@nameuse{GradientCircle#1}}
\psset@GradientCircle{false}
% Position of the center of the gradient
\def\psset@GradientPos#1{\psset@@GradientPos#1}
\def\psset@@GradientPos(#1){\edef\ps@GradientPos{#1}}
\psset@GradientPos{(0,0)}
% Scale factor
\def\psset@GradientScale#1{\edef\ps@GradientScale{#1}}
\psset@GradientScale{1}
\def\psfs@gradient{%
% D.G. modification begin - Apr. 9, 1998
%\addto@pscode{gsave
\pst@getcoor{\ps@GradientPos}{\pst@tempa}% <- "%" hv 2004-06-23
\addto@pscode{gsave
\ifGradientCircle true \else false \fi
\ps@GradientScale\space
\pst@tempa
% D.G. modification end
gsave \pst@usecolor\psgradbegin currentrgbcolor grestore
gsave \pst@usecolor\psgradend currentrgbcolor grestore
\psgradlines
\psgradmidpoint
\psk@gradangle
tx@GradientDict begin GradientFill end grestore
}%
}
\catcode`\@=\TheAtCode\relax
\endinput
%%
%% END pst-grad.tex
|