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[½»Á÷] [תÌù]Gnuplot ʹÓü¼ÇÉ

Gnuplot ʹÓü¼ÇÉ

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2005-10-21

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һЩ×î»ù±¾µÄ²Ù×÷Çë´ó¼Ò¿´ËµÃ÷Êé¡£ÕâÀï×ܽáÒ»ÏÂÎÒÔÚʹÓùý³ÌÖÐÓöµ½µÄһЩÎÊÌâÒÔ¼°½â¾öµÄ°ì·¨£¬Ä¿µÄÊÇÈÃÄÇЩÒÔǰ²»»áµÄ»ò²»ÊìÁ·µÄÄÜ¿ìËÙÈëÃÅ£¬»á»­×Ô¼ºÏëÒªµÄͼ£¬ÒòΪԭÀ´µÄ˵Ã÷ÊéºÜ³¤£¬½ÏÄÑÓÐÕë¶ÔÐԵغܿìÕÒµ½×Ô¼ºÏëÒªµÄÐÅÏ¢¡£ÕâÀï¼òµ¥µÄ×ܽ᲻¿ÉÄÜ̾̾¾ãµ½£¬ËùÒÔ´ó¼Ò²»Òª±§Ô¹ÎÒдµÄ²»È«£¬¸üÈ«ÃæµÄÁ˽⻹ÊÇÇ뿴˵Ã÷Êé£¬ÍøÉϵÄ×ÊÁÏÒ²¶àµÄÊÇ¡£ÆäʵÕâÒ²ÊÇÎÒÃÇ´ÓÍøÉÏÒ»µãÒ»µãËѼ¯ºÍÃþË÷³öÀ´µÄ¡£ÎÒÏàÐÅ¿´Íêºó£¬Ó¦¸Ãƽʱ×î³£¼ûµÄÎÊÌâ»ù±¾É϶¼ÄÜÔÚÕâÀïÕÒµ½´ð°¸¡£Èç¹û´ó¼ÒÔÚʹÓùý³ÌÖÐÃþË÷µ½ÁËÎÒûÓÐдµ½µÄ¼¼ÇɺÍÌå»á£¬»òÓÐÆäËü½¨Ò飬Çë´ó¼ÒÌá¸æËßÎÒ£¬ÒÔ²»¶ÏÍêÉÆÕâÆª×ܽᣬлл£¡



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gnuplot> plot sin(x) with line linetype 3 linewidth 2 »ò

gnuplot> plot sin(x) w l lt 3 lw 2    %ÓÃÏß»­£¬ÏßµÄÀàÐÍ£¨°üÀ¨ÑÕÉ«ÓëÐéÏßµÄÀàÐÍ£©ÊÇ3£¬ÏߵĿí¶ÈÊÇ2£¬¶Ôº¯Êýsin(x)×÷ͼ

gnuplot> plot sin(x) with point pointtype 3 pointsize 2  »ò

gnuplot> plot sin(x) w p pt 3 ps 2    %Óõ㻭£¬µãµÄÀàÐÍ£¨°üÀ¨ÑÕÉ«ÓëµãµÄÀàÐÍ£©ÊÇ3£¬µãµÄ´óСÊÇ2

gnuplot> plot sin(x) title 'f(x)' w lp lt 3 lw 2 pt 3 ps 2    %ͬʱÓõãºÍÏß»­£¬ÕâÀïtitle ¡®f(x)¡¯±íʾͼÀýÉϱê'f(x)'£¬Èç¹û²»ÓÃÔòÓÃĬÈÏÑ¡Ïî

gnuplot> plot sin(x)    %´ËʱËùÓÐÑ¡Ïî¾ùÓÃĬÈÏÖµ¡£Èç¹ûȱijһÏîÔò½«ÓÃĬÈÏÖµ

gnuplot> plot ¡®a.dat¡¯ u 2:3  w l lt 3 lw 2 %ÀûÓÃÊý¾ÝÎļþa.datÖеĵڶþºÍµÚÈýÁÐ×÷ͼ



˳±ãÌáһϣ¬ÈçÕâÀï×îÇ°ÃæµÄÁ½¸öÀý×ÓËùʾ£¬ÔÚgnuplotÖУ¬Èç¹ûijÁ½¸ö´Ê£¬°´×ÖĸÏȺó˳Ðò£¬Ç°ÃæÄ³¼¸¸ö×ÖĸÏàͬ£¬ºóÃæµÄ²»Í¬£¬ÄÇôֻҪдµ½µÚÒ»¸ö²»Í¬µÄ×Öĸ¾Í¿ÉÒÔÁË¡£Èçwith£¬ÓÉÓÚûÓÐÆäËüÒÔw¿ªÍ·µÄ´Ê£¬Òò´Ë¿ÉÒÔÓà w ´úÌæ£¬lineÒ²¿ÉÒÔÓà l ´úÌæ¡£



2¡¢Í¬Ê±»­¶àÌõÇúÏß

gnuplot> plot sin(x) title ¡®sin(x)¡¯ w l lt 1 lw 2, cos(x) title ¡®cos(x)¡¯  w l lt 2 lw 2  £¥Á½ÌõÇúÏßÊÇÓöººÅ¸ô¿ªµÄ¡£»­¶àÌõÇúÏßʱ£¬¸÷ÇúÏß¼ä¾ùÓöººÅ¸ô¿ª¾Í¿ÉÒÔÁË¡£



ÒÔÉÏÀý×ÓÖÐÊǶԺ¯Êý×÷ͼ£¬Èç¹û¶ÔÊý¾ÝÎļþ×÷ͼ£¬½«º¯ÊýÃû³Æ»»ÎªÊý¾ÝÎļþÃû¼´¿É£¬µ«ÒªÓõ¥ÒýºÅÒýÆðÀ´¡£



3¡¢¹ØÓÚͼÀýµÄλÖÃ

ĬÈÏλÖÃÔÚÓÒÉÏ·½¡£

gnuplot> set key left  %·ÅÔÚ×ó±ß£¬ÓÐleft ºÍrightÁ½¸öÑ¡Ïî

gnuplot> set key bottom  %·ÅÔÚϱߣ¬Ö»ÓÐÕâÒ»¸öÑ¡ÏĬÈÏÔÚÉϱß

gnuplot> set key outside  %·ÅÔÚÍâ±ß£¬µ«Ö»ÄÜÔÚÓÒÃæµÄÍâ±ß

ÒÔÉÏÈý¸öÑ¡Ïî¿ÉÒÔ½øÐÐ×éºÏ¡£È磺

gnuplot> set key left bottom  %±íʾ×óϱß



»¹¿ÉÒÔÖ±½ÓÓÃ×ø±ê¾«È·±íʾͼÀýµÄλÖã¬Èç

gnuplot> set key 0.5,0.6  %½«Í¼Àý·ÅÔÚ0.5,0.6µÄλÖô¦



4¡¢¹ØÓÚ×ø±êÖá

gnuplot> set xlabel ¡®x¡¯   %xÖá±êΪ¡®x¡¯

gnuplot> set ylabel ¡®y¡¯   %yÖá±êΪ¡¯y¡¯

gnuplot> set ylabel ¡®DOS¡¯ tc lt 3  %ÆäÖеÄtc lt 3±íʾ¡¯DOS¡¯µÄÑÕÉ«ÓõÚÈýÖÖÑÕÉ«¡£

gnuplot> set xtics 1.0    %xÖáµÄÖ÷¿Ì¶ÈµÄ¿í¶ÈΪ1.0£¬Í¬Ñù¿ÉÒÔΪyÖᶨÒåytics

gnuplot> set mxtics 3    %xÖáÉÏÿ¸öÖ÷¿Ì¶ÈÖл­3¸ö·Ö¿Ì¶È£¬Í¬Ñù¿ÉÒÔΪyÖᶨÒåmytics

gnuplot> set border 3 lt 3 lw 2 %ÉèΪµÚÈýÖֱ߽磬ÑÕÉ«ÀàÐÍΪ3£¬Ïß¿íΪ2

ͬÑù¿ÉÒÔΪÉϱߵÄxÖᣨ³ÆÎªx2£©ºÍÓÒ±ßy£¨³ÆÎªy2£©Öá½øÐÐÉèÖ㬼´x2tics£¬mx2tics£¬y2tics£¬my2tics¡£

gnuplot> set xtics nomirror

gnuplot> unset x2tics     %ÒÔÉÏÁ½ÌõÃüÁîÈ¥µôÉϱßx2ÖáµÄ¿Ì¶È



gnuplot> set ytics nomirror

gnuplot> unset y2tics     %ÒÔÉÏÁ½ÌõÃüÁîÈ¥µôÓÒ±ßyÖáµÄ¿Ì¶È



5¡¢ÔÚͼÖвåÈëÎÄ×Ö

gnuplot> set label ¡®sin(x)¡¯ at 0.5,0.5  %ÔÚ×ø±ê£¨0.5,0.5£©´¦¼ÓÈë×Ö·û´®¡¯sin(x)¡¯¡£

ÔÚÊä³öΪ.ps»ò.epsÎļþʱ£¬Èç¹ûÔÚset term µÄÓï¾äÖмÓÈëÁËenhancedÑ¡ÏÖ£¬Ôò¿ÉÒÔ²åÈëÉÏϱꡢϣÀ°×ÖĸºÍÌØÊâ·ûºÅ¡£ÉÏϱêµÄ²åÈëºÍlatexÖеķ½·¨ÊÇÒ»ÑùµÄ¡£



6¡¢ÔÚͼÖÐÌí¼ÓÖ±ÏߺͼýÍ·

gnuplot> set arrow from 0.0,0.0 to 0.6,0.8    %´Ó£¨0.0,0.0£©µ½£¨0.6,0.8£©»­Ò»¸ö¼ýÍ·

gnuplot> set arrow from 0.0,0.0 to 0.6,0.8 lt 3 lw 2   %Õâ¸ö¼ýÍ·ÑÕÉ«ÀàÐÍΪ3£¬Ïß¿íÀàÐÍΪ2

gnuplot> set arrow from 0.0,0.0 to 0.6,0.8 nohead lt 3 lw 2  %ÀûÓÃnohead¿ÉÒÔÈ¥µô¼ýÍ·µÄÍ·²¿£¬Õâ¾ÍÊÇÌí¼ÓÖ±Ïߵķ½·¨¡£



×¢Ò⣬ÔÚgnuplotÖУ¬¶ÔÓÚ²åÈë¶à¸öµÄlabelºÍarrowµÈµÈ£¬ÏµÍ³»áĬÈϰ´ÏȺó˳Ðò·Ö±ð¶Ô¸÷¸ölabel»òarrow½øÐбàºÅ£¬´Ó1¿ªÊ¼¡£Èç¹ûÒÔºóҪȥµôij¸ölabel»òarrow£¬ÄÇôֻҪÓÃunsetÃüÁÏàÓ¦µÄÈ¥µô¼´¿É¡£È磺

gnuplot> unset arrow 2

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gnuplot>set size 0.5,0.5  %³¤¿í¾ùΪĬÈÏ¿í¶ÈµÄÒ»°ë£¬½¨ÒéÓÃÕâ¸öȡֵ£¬ÓÈÆäÊÇ»­³Éps»òepsͼÐεÄʱºò

gnuplot>set origin 0.0,0.5   %É趨ͼµÄ×î×óϽǵÄÄÇÒ»µãÔÚͼÐÎÃæ°åÖеÄλÖá£ÕâÀïͼ½«³öÏÖÔÚ×óÉϽǡ£



8¡¢»­Èýάͼ

gnuplot>splot ¡®ÎļþÃû¡¯ u 2:4:5  %ÒÔµÚ¶þºÍµÚËÄÁÐ×÷ΪxºÍy×ø±ê£¬µÚÎåÁÐΪz×ø±ê¡£





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1¡¢ÈçºÎÔÚͬһÕÅͼÀïͬʱ»­¶à¸öͼ

gnuplot>set multiplot   %ÉèÖÃΪ¶àͼģʽ

gnuplot>set origin 0.0,0.0   %ÉèÖõÚÒ»¸öͼµÄÔ­µãµÄλÖÃ

gnuplot>set size 0.5,0.5  %ÉèÖõÚÒ»¸öͼµÄ´óС

gnuplot>plot ¡°a1.dat¡±

gnuplot>set origin 0.0,0.5   %ÉèÖõڶþ¸öͼµÄÔ­µãµÄλÖÃ

gnuplot>set size 0.5,0.5   %ÉèÖõڶþ¸öͼµÄ´óС

gnuplot>plot ¡°a2.dat¡±

gnuplot>set origin 0.0,0.0   %ÉèÖõÚÈý¸öͼµÄÔ­µãµÄλÖÃ

gnuplot>set size 0.5,0.5  %ÉèÖõÚÈý¸öͼµÄ´óС

gnuplot>plot ¡°a3.dat¡±

gnuplot>set origin 0.0,0.0   %ÉèÖõÚËĸöͼµÄÔ­µãµÄλÖÃ

gnuplot>set size 0.5,0.5  %ÉèÖõÚËĸöͼµÄ´óС

gnuplot>plot ¡°a4.dat¡±

µ±È»£¬Èç¹ûºóÒ»¸öͼÖеÄij¸öÁ¿µÄÉèÖúÍǰһ¸öµÄÏàͬ£¬ÄÇôºóÒ»¸öÖеÄÕâ¸öÁ¿µÄÉèÖÿÉÒÔÊ¡ÂÔ¡£ÀýÈçÉÏÃæ¶ÔµÚ¶þ¡¢µÚÈýºÍµÚËĸöͼµÄ´óСµÄÉèÖá£Ç°Ò»¸öͼÖжÔij¸öÁ¿µÄÉèÖÃÒ²»áÔÚºóÒ»¸öͼÖÐÆð×÷Óá£Èç¹ûҪȡÏûÔÚºóÃæÍ¼ÖеÄ×÷Ó㬱ØÐëÓÃÈçÏÂÃüÁÈçÈ¡Ïûlabel£¬ÓÃ

gnuplot>unset label





2¡¢×÷¶þάͼʱ£¬ÈçºÎʹÁ½±ß×ø±êÖáµÄµ¥Î»³¤¶ÈµÈ³¤

gnuplot> set size square    %ʹͼÐÎÊÇ·½µÄ
gnuplot> set size 0.5,0.5    %ʹͼÐÎÊÇÄãÒªµÄ´óС
gnuplot> set xrange[-a:a]
gnuplot> set yrange[-a:a]    %Á½×ø±êÖá¿Ì¶È·¶Î§Ò»Ñù
gnuplot> plot ¡®a.dat¡¯



3¡¢ÈçºÎÔÚͬһÕÅͼÀïÀûÓÃ×óÓÒÁ½±ßµÄyÖá·Ö±ð»­Í¼

gnuplot> set xtics nomirror   %È¥µôÉÏÃæ×ø±êÖáx2µÄ¿Ì¶È
gnuplot> set ytics nomirror   %È¥µôÓÒ±ß×ø±êÖáy2µÄ¿Ì¶È
gnuplot> set x2tics       %ÈÃÉÏÃæ×ø±êÖáx2¿Ì¶È×Ô¶¯²úÉú
gnuplot> set y2tics     %ÈÃÓÒ±ß×ø±êÖáy2µÄ¿Ì¶È×Ô¶¯²úÉú
gnuplot> plot sin(x),cos(x) axes x1y2    %cos(x)ÓÃx1y2×ø±ê£¬axes x1y2±íʾÓÃx1y2×ø±êÖá
gnuplot> plot sin(x),cos(x) axes x2y2     %cos(x)ÓÃx2y2×ø±ê£¬axes x2y2±íʾÓÃx2y2×ø±êÖá
gnuplot> set x2range[-20:20]   %É趨x2×ø±êµÄ·¶Î§
gnuplot> replot
gnuplot> set xrange[-5:5]  %É趨x×ø±êµÄ·¶Î§
gnuplot> replot
gnuplot> set xlabel 'x'
gnuplot> set x2label 't'
gnuplot> set ylabel 'y'
gnuplot> set y2label 's'
gnuplot> replot
gnuplot> set title 'The figure'
gnuplot> replot
gnuplot> set x2label 't' textcolor lt 3    %textcolor lt 3»òtc lt 3ÉèÖÃ×ø±êÖáÃû³ÆµÄÑÕÉ«



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gnuplot> set terminal postscript enhanced

È»ºóÏ£À°×Öĸ¾Í¿ÉÒÔͨ¹ý{/Symbol a}ÊäÈë¡£ÀýÈç

gnuplot> set label ¡®{/Symbol a}¡¯

¸÷ÖÖÏ£À°×ÖĸÓëÌØÊâ·ûºÅµÄÊäÈë·½·¨Çë¼û°²×°°üÖÐgnuplot-4.0.0/docs/psdocĿ¼ÏµÄps_guide.psÎļþ¡£


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gnuplot>set encoding iso_8859_1

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gnuplot>set xlabel 'k(1/{\305})



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gnuplot>set multiplot

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set encoding default



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gnuplot>splot  ¡®ÎļþÃû.dat¡¯  u 1:2:3  w  l   %×öÈýάͼ

gnuplot>set dgrid3d 100,100 %ÉèÖÃÈýάͼ±íÃæµÄÍø¸ñµÄÊýÄ¿

gnuplot>replot

gnuplot>set contour    %ÉèÖû­µÈ¸ßÏß

gnuplot>set cntrparam  levels  incremental -0.2,0.01,0.2   %ÉèÖõȸßÏßµÄÊèÃܺͷ¶Î§£¬Êý¾Ý´Ó   -0.2µ½0.2Öмäÿ¸ô0.01»­Ò»ÌõÏß

gnuplot>unset surface   È¥µôÉÏÃæµÄÈýάͼÐÎ

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gnuplot>set view 0,0

gnuplot>replot



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gnuplot>set term postscript eps enh solid color

ÆäÖÐepsÑ¡Ïî±íʾÊä³öΪeps¸ñʽ£¬È¥µôÔò±íʾÓÃĬÈϵÄps¸ñʽ£»enhÑ¡Ïî±íʾͼÖпÉÒÔ²åÈëÉÏϱꡢϣÀ°×Öĸ¼°ÆäËüÌØÊâ·ûºÅ£¬Èç¹ûÈ¥µôÔò²»ÄܲåÈ룻solidÑ¡Ïî±íʾͼÖÐËùÓеÄÇúÏß¶¼ÓÃʵÏߣ¬È¥µôÔò½«Óò»Í¬µÄÐéÏߣ»colorÑ¡Ïî±íʾÔÚͼÖÐÈ«²¿ÇúÏßÓòÊÉ«£¬È¥µôÔò½«Óúڰס£



8¡¢ÈçºÎ»­Æ¯ÁÁµÄpm3dͼ

gnuplot> set pm3d                %ÉèÖÃpm3dģʽ

gnuplot> set isosamples 50,50       %ÉèÖÃÍø¸ñµã

gnuplot> splot x**2+y**2          £¥»­Èýάͼ

gnuplot> splot x**2+y**2 w pm3d   £¥»­³Épm3dģʽ£¬×¢Òâ±È½Ï±ä»¯

gnuplot> set view 0,0              £¥ÉèÖÃÊӽǣ¬£¨0£¬0£©½«Í¶Ó°µ½µ×ÃæÉÏÈ¥

gnuplot> splot x**2+y**2 w pm3d   £¥ÖØ»­£¬×¢Òâ¿´±ä»¯

gnuplot> unset ztics               %°ÑzÖáÉϵÄÊý×Ö¸øÈ¥µô

gnuplot> set isosamples 200,200     £¥Ê¹Íø¸ñ±äϸ

gnuplot> replot                   £¥ÖØ»­£¬×¢Òâ¿´±ä»¯£¬Ö÷ÒªÊǹý¶É¸ü¹â»¬



9¡¢ÀûÓýű¾Îļþ±ÜÃâÖØ¸´ÊäÈë

ÓÐʱºò¶Ôij¸öÊý¾ÝÎļþ×öºÃÒ»ÕÅͼºó£¬Ï´οÉÄÜ»¹ÒªÀûÓÃÕâ¸öÊý¾ÝÎļþ×÷ͼ£¬µ«Ä³¸ö»òijЩÉèÖÃÒª×÷Щϸ΢±ä»¯¡£Õâʱºò£¬¿ÉÒ԰ѵÚÒ»´Î×÷ͼʱµÄÃüÁîÈ«²¿Ð´µ½Ò»¸öÎļþÀÈça.plt£¬Ï´ÎÖ»Òª½«ÏàÓ¦µÄÉèÖÃ×öÐ޸ĺó£¬ÓÃÏÂÃæµÄÃüÁî¾Í»á×Ô¶¯ÔËÐÐÎļþËùÓеÄÃüÁî¶ø×îºóµÃµ½ÄãÒªµÄͼ£º

gnuplot>load ¡®a.plt¡¯

×÷Ϊһ¸öÀý×Ó£¬¼ÙÉèÎļþÃûΪa.plt£¬ÀïÃæµÄÄÚÈÝΪ£º

set pm3d

set view 0,0

unset ztics

set isosamples 200,200

splot x**2+y**2 w pm3d

set term post color

set output ¡®a.ps¡¯

replot



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[zxh@theory zxh]$vi a.f

[zxh@theory zxh]$f77 a.f

[zxh@theory zxh]$a.out    (¼ÙÉèÉú³Éa.datÊý¾ÝÎļþ)

[zxh@theory zxh]$exit

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