Mat*_*ato 5 linux debian gnuplot
你能帮我吗?我希望将一行类型更改为点线.我使用这些命令:
gnuplot> set terminal png size 750,210 nocrop butt font "/usr/share/fonts/truetype/ttf-liberation/LiberationSans-Regular.ttf" 8
gnuplot> set output "/root/data.png"
gnuplot> set xdata time
gnuplot> set timefmt "%Y-%m-%d"
gnuplot> set format x "%b %d"
gnuplot> set ylabel "item1"
gnuplot> set y2label "item2"
gnuplot> set y2tics
gnuplot> set datafile separator "|"
gnuplot> plot "/root/results.txt" using 1:2 title "item1" w lines lt 4, "/root/results.txt" using 1:3 title "item2" with lines
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但我总是得到洋红色线.我使用了版本4.6 patchlevel 0.感谢您的回复.
有几种方法可以使用set命令更改线条颜色:
定义线条样式:
set style line 1 linetype 1 linecolor 7
set style line 2 linetype 1 linecolor rgb "#dd7700"
plot x linestyle 1, x**2 linestyle 2
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您必须明确指定使用哪种线型。
选择和增加了线的风格,而不是线类型,如果没有指定为:
set style line 1 linetype 1 linecolor 7
set style line 2 linetype 1 linecolor rgb "#dd7700"
set style increment user
plot x, x**2
Run Code Online (Sandbox Code Playgroud)重新定义默认线类型(在4.6.0版本中引入的):
set linetype 1 linecolor 7
set linetype 2 linetype 1 linecolor rgb "magenta"
plot x, x**2
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请注意,与线条样式不同,重新定义 byset linetype是持久的;他们不受reset. 要重置它们,您必须使用set linetype 1 default.
所以一个最小的绘图脚本可能如下所示:
reset
set terminal pngcairo dashed monochrome
set output "/root/data.png"
set xdata time
set timefmt "%Y-%m-%d"
set format x "%b %d"
set datafile separator "|"
set style data lines
plot "/root/results.txt" using 1:2 linetype 1, "" using 1:3 linetype 3
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