On Jul 10, 2009, at 10:56 AM, Ben Abbott wrote:
On Friday, July 10, 2009, at 12:37PM, "John B. Thoo"
<address@hidden> wrote:
Hi, everyone.
I can save a plot to EPS by
print ("foo.eps", "-deps")
but when I try to save a plot to PNG by
print ("foo.png", "-dpng")
I get a run of errors like
gnuplot> e
^
line 0: invalid command
and no plot is saved.
What am I doing wrongly?
I'm using Octave 3.0.5 and gnuplot 4.2 patchlevel 5 in an X11 xterm
window in Mac OS X 10.4.11.
Thanks.
I have no problem producing png output with 3.2 and gnuplot 4.2.5.
Can you run gnuplot and try ...
set term png
set output foo.png
plot sin(x)
quit
Do you still get the error?
Hi, Ben. When I open gnuplot separately from Octave and try to
"set term png", I get this error:
[533] bash-2.05b$ gnuplot
G N U P L O T
Version 4.2 patchlevel 5
last modified Mar 2009
System: Darwin 8.11.0
Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
Thomas Williams, Colin Kelley and many others
Type `help` to access the on-line reference manual.
The gnuplot FAQ is available from http://www.gnuplot.info/
faq/
Send bug reports and suggestions to <http://
sourceforge.net/ projects/gnuplot>
Terminal type set to 'aqua'
gnuplot> set term png
^
unknown or ambiguous terminal type; type just 'set
terminal' for a list
gnuplot>
When I type just "set terminal" for a list of available terminals
types, I get:
Available terminal types:
aed512 AED 512 Terminal
aed767 AED 767 Terminal
aifm Adobe Illustrator 3.0 Format
aqua Interface to graphics terminal server for Mac
OS X
bitgraph BBN Bitgraph Terminal
cgm Computer Graphics Metafile
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
epson_180dpi Epson LQ-style 180-dot per inch (24 pin) printers
epson_60dpi Epson-style 60-dot per inch printers
epson_lx800 Epson LX-800, Star NL-10, NX-1000, PROPRINTER ...
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
hp500c HP DeskJet 500c, [75 100 150 300] [rle tiff]
hpdj HP DeskJet 500, [75 100 150 300]
hpgl HP7475 and relatives [number of pens] [eject]
hpljii HP Laserjet series II, [75 100 150 300]
hppj HP PaintJet and HP3630 [FNT5X9 FNT9X17 FNT13X25]
imagen Imagen laser printer
kc_tek40xx MS-DOS Kermit Tek4010 terminal emulator - color
km_tek40xx MS-DOS Kermit Tek4010 terminal emulator -
monochrome
latex LaTeX picture environment
mf Metafont plotting standard
mif Frame maker MIF 3.00 format
mp MetaPost plotting standard
nec_cp6 NEC printer CP6, Epson LQ-800 [monocrome
color draft]
okidata OKIDATA 320/321 Standard
pbm Portable bitmap [small medium large]
[monochrome gray color]
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
selanar Selanar
starc Star Color Printer
svg W3C Scalable Vector Graphics driver
tandy_60dpi Tandy DMP-130 series 60-dot per inch graphics
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)
(END)
so I see that png is not on the list. (No "gif" either.) Hmm ...
I guess that explains it. What do you suggest I do?
Thanks.
---John.