gnuplotでcontourを描いてみる。
$ gnuplot G N U P L O T Version 4.4 patchlevel 3 last modified March 2011 System: Linux 3.3.2-6.fc16.i686 Copyright (C) 1986-1993, 1998, 2004, 2007-2010 Thomas Williams, Colin Kelley and many others gnuplot home: http://www.gnuplot.info faq, bugs, etc: type "help seeking-assistance" immediate help: type "help" plot window: hit 'h' Terminal type set to 'wxt' gnuplot> set contour gnuplot> splot x*x+y*y
ascii文字でcontourを描く。
gnuplot> set term dumb Terminal type set to 'dumb' Options are 'feed size 79, 24' gnuplot> splot x*x+y*y **** x*x+y*y ****** ** |**** 200 ###### ******** ***** 150 $$$$$** **** **** ** ****** 100*******| 200 *** ***** ***| ***** ** ******* 50******@| 160 |************* ***** ***** ******** ** *********** | 120 |+ *************************** ** **************** | 60 |+ **************+****** ******************* | 20 |+ ********************************** | 0 |+ %%%%%************************%%%%%%----- | | -%%%++ @@@@ | @@@@@ %%%%-$$$-- 10 | --$-- %% @@ | @@@----%% 5$ -10 +---$$$--%%%%%-@@@@@@@@@@-- @@@@@@@@---%% 0% -5 0%%%%%%%%%%%%%%%%%%%%%%%%-5% 5 + $$$$$-10$ 10
gnuplot> unset surface gnuplot> set view 0,0 gnuplot> set key outside gnuplot> splot x*x+y*y x*x+y*y 200 ###### +----$---------------------$----+ 10 150 $$$$$$ |$$$$$ %%%%%%%%%%%%%%%%%%% $$$$$+ 100 %%%%%% $$ %%% @@@@@@@@@@@ %%% $$ 50 @@@@@@ |+%% @@@@ @@@@ %%++ 5 |% @@ @@ %| %+ @ @ +% 0 |% @@ @@ %| |+%% @@@@ @@@@ %%++-5 $$ %%% @@@@@@@@@@@ %%% $$ |$$$$$ %%%%%%%%%%%%%%%%%%% $$$$$+ 0 ++---$--+-------+-------+--$---++-10 -10 -5 0 5 10
gnuplot> set size 1,1.6 gnuplot> set origin 0,-0.35 gnuplot> splot x*x+y*y 200 ###### 150 $$$$$$ 100 %%%%%% 50 @@@@@@ +---$$-----%%%%%%%%%%%-----$$---+ 10 | $$$ %%%%% + %%%%% $$$ + $$ %%% %%% $$ $ %%% @@@@@@@@@@@@@ %%% $ |+%% @@@ @@@ %%++ 5 |%% @@ @@ %%| |% @ @ %| % @ @ % %+ @ @ +% 0 % @ @ % |% @ @ %| |%% @@ @@ %%| |+%% @@@ @@@ %%++-5 $ %%% @@@@@@@@@@@@@ %%% $ $$ %%% %%% $$ | $$$ %%%%% + %%%%% $$$ + 0 ++--$$--+--%%%%%%%%%%%--+--$$--++-10 -10 -5 0 5 10 gnuplot>
参照したURL:
等高線図を描く
http://graph.pc-physics.com/contourline1.html
http://www.math.sci.osaka-u.ac.jp/~ohyama/frame/kougi/it/05.html
http://t16web.lanl.gov/Kawano/gnuplot/legend.html
gnuplot demo script: contours.dem
http://www.gnuplot.info/demo/contours.html
Tips 'n' Tricks Gnuplot
http://www.zoology.ubc.ca/~rikblok/TipsnTricks/gnuplot.html
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