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\documentclass{article}
\usepackage{axiom}
\begin{document}
\title{\$SPAD/src/algebra plottool.spad}
\author{The Axiom Team}
\maketitle
\begin{abstract}
\end{abstract}
\eject
\tableofcontents
\eject
\section{package PLOTTOOL PlotTools}
<<package PLOTTOOL PlotTools>>=
)abbrev package PLOTTOOL PlotTools
++ Author:
++ Date Created:
++ Date Last Updated:
++ Keywords:
++ Examples:
++ References:
++ Description:
++ This package exports plotting tools
PlotTools(): Exports == Implementation where
L ==> List
-- Pt ==> TwoDimensionalPoint
SEG ==> Segment
SF ==> DoubleFloat
Pt ==> Point(SF)
PLOT ==> Plot
DROP ==> DrawOption
S ==> String
VIEW2D ==> TwoDimensionalViewport
Exports ==> with
calcRanges: L L Pt -> L SEG SF
++ calcRanges(l) \undocumented
Implementation ==> add
import GraphicsDefaults
import PLOT
import TwoDimensionalPlotClipping
import DrawOptionFunctions0
import ViewportPackage
import POINT
import PointPackage(SF)
--%Local functions
xRange0: L Pt -> SEG SF
xRange: L L Pt -> SEG SF
yRange0: L Pt -> SEG SF
yRange: L L Pt -> SEG SF
drawToScaleRanges: (SEG SF,SEG SF) -> L SEG SF
drawToScaleRanges(xVals,yVals) ==
xDiff := (xHi := hi xVals) - (xLo := lo xVals)
yDiff := (yHi := hi yVals) - (yLo := lo yVals)
pad := abs(yDiff - xDiff)/2
yDiff > xDiff => [segment(xLo - pad,xHi + pad),yVals]
[xVals,segment(yLo - pad,yHi + pad)]
select : (L Pt,Pt -> SF,(SF,SF) -> SF) -> SF
select(l,f,g) ==
m := f first l
for p in rest l repeat m := g(m,f p)
m
xRange0(list:L Pt) == select(list,xCoord,min) .. select(list,xCoord,max)
yRange0(list:L Pt) == select(list,yCoord,min) .. select(list,yCoord,max)
select2: (L L Pt,L Pt -> SF,(SF,SF) -> SF) -> SF
select2(l,f,g) ==
m := f first l
for p in rest l repeat m := g(m,f p)
m
xRange(list:L L Pt) ==
select2(list,lo(xRange0(#1)),min) .. select2(list,hi(xRange0(#1)),max)
yRange(list:L L Pt) ==
select2(list,lo(yRange0(#1)),min) .. select2(list,hi(yRange0(#1)),max)
--%Exported Functions
calcRanges(llp) ==
drawToScale() => drawToScaleRanges(xRange llp, yRange llp)
[xRange llp, yRange llp]
@
\section{License}
<<license>>=
--Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
--All rights reserved.
--
--Redistribution and use in source and binary forms, with or without
--modification, are permitted provided that the following conditions are
--met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical ALgorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
--THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
--IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
--TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
--OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
--EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
--PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
--PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
--LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
--NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
--SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@
<<*>>=
<<license>>
<<package PLOTTOOL PlotTools>>
@
\eject
\begin{thebibliography}{99}
\bibitem{1} nothing
\end{thebibliography}
\end{document}
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