终端"png"使用Gnuplot时丢失 [英] Terminal "png" missing when using Gnuplot
问题描述
我正在使用Xubuntu 13.10,并通过手动编译安装了gnuplot.但是,当我测试绘图"功能时,出现错误:
I'm using Xubuntu 13.10 and I installed gnuplot by compiling it manully. However, when I test the feature of "plot" it got an error:
$ python PlotSccDistr.py
set terminal png size 1000,800
^
"scc.example.plt", line 16: unknown or ambiguous terminal type; type just 'set terminal' for a list
,如果我想设置终端png,但在列表中没有找到"png":
and if I want to set terminal png, but I found no "png" in my list:
$ gnuplot
G N U P L O T
Version 4.6 patchlevel 5 last modified February 2014
Build System: Linux x86_64
Copyright (C) 1986-1993, 1998, 2004, 2007-2014
Thomas Williams, Colin Kelley and many others
gnuplot home: http://www.gnuplot.info
faq, bugs, etc: type "help FAQ"
immediate help: type "help" (plot window: hit 'h')
Terminal type set to 'x11'
gnuplot> set terminal
canvas HTML Canvas object
cgm Computer Graphics Metafile
context ConTeXt with MetaFun (for PDF documents)
corel EPS format for CorelDRAW
dumb ascii art for anything that prints text
dxf dxf-file for AutoCad (default size 120x80)
eepic EEPIC -- extended LaTeX picture environment
emf Enhanced Metafile format
emtex LaTeX picture environment with emTeX specials
epslatex LaTeX picture environment using graphicx package
fig FIG graphics language for XFIG graphics editor
gpic GPIC -- Produce graphs in groff using the gpic preprocessor
hp2623A HP2623A and maybe others
hp2648 HP2648 and HP2647
hpgl HP7475 and relatives [number of pens] [eject]
imagen Imagen laser printer
latex LaTeX picture environment
mf Metafont plotting standard
mif Frame maker MIF 3.00 format
mp MetaPost plotting standard
pcl5 HP Designjet 750C, HP Laserjet III/IV, etc. (many options)
postscript PostScript graphics, including EPSF embedded files (*.eps)
pslatex LaTeX picture environment with PostScript \specials
pstex plain TeX with PostScript \specials
pstricks LaTeX picture environment with PSTricks macros
qms QMS/QUIC Laser printer (also Talaris 1200 and others)
regis REGIS graphics language
svg W3C Scalable Vector Graphics driver
tek40xx Tektronix 4010 and others; most TEK emulators
tek410x Tektronix 4106, 4107, 4109 and 420X terminals
texdraw LaTeX texdraw environment
tgif TGIF X11 [mode] [x,y] [dashed] ["font" [fontsize]]
tkcanvas Tk/Tcl canvas widget [perltk] [interactive]
tpic TPIC -- LaTeX picture environment with tpic \specials
unknown Unknown terminal type - not a plotting device
vttek VT-like tek40xx terminal emulator
x11 X11 Window System
xlib X11 Window System (gnulib_x11 dump)
xterm Xterm Tektronix 4014 Mode
有人可以帮助我吗?谢谢!!!
Anyone could help me with that? Thanks!!!
推荐答案
png终端不可用的原因是它是基于libgd的终端,以及jpeg和gif.对于这些终端,gnuplot需要libgd版本> = 2.0.为了使它可用,您必须首先安装 GD图形库:
The reason the png terminal is not available is that it's a libgd-based terminal along with jpeg, and gif. For these terminals gnuplot requires libgd version >= 2.0. In order to get it available you have to install GD Graphics Library first:
$ sudo apt-get install libgd2-dev
然后安装gnuplot并检查png终端是否存在:
Then install gnuplot and check that the png terminal is present:
gnuplot> set terminal
Available terminal types:
...
gif GIF images using libgd and TrueType fonts
...
jpeg JPEG images using libgd and TrueType fonts
...
png PNG images using libgd and TrueType fonts
...
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