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Right margin in pm3d plot not correct when using cblabel and postscript terminal

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Hello,

as you can see in the subject, I have problems plotting a cblabel at the 
right side of a pm3d plot when using postscript terminal. An example:

#####
set pm3d map
set cblabel '{/Symbol a} [Gy^{-1}]'
set terminal postscript eps enhanced 16 rounded color
set output 'Test.eps'
splot 'Data.dat' using 1:2:($3/100) w pm3d
unset output
system 'epstopdf Test.eps && rm Test.eps'
####

The file Data.dat contains:

10 10    1.10
10 100   0.23
10 1000  0.12

20 10    1.10
20 100   0.29
20 1000  0.16

Only "-1" is visible in the final pdf on the right side. 

The cblabel is correctly displayed if I change the splot command line to

splot 'Data.dat' using 1:2:($3/10) w pm3d

so that the tics on the cblabel are not so wide. Is this a bug or is there 
a way to automatically adjust the right margin of the plot? Setting 
rmargin does not seem to have any effect.

I'm using gnuplot version 4.4 patchlevel 2 (Gentoo revision r1) on a 
current stable gentoo.

Thanks in advance
Uwe Scholz

PS: By editing the bounding box in the eps file before converting it to 
pdf it is possible to see the whole cblabel. But this is only a 
workaround by now and no solution... :-|

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Right margin in pm3d plot not correct when using cblabel and postscript terminal Uwe Scholz <nurfuernews@web.de> - 2011-04-04 22:02 +0000
  Re: Right margin in pm3d plot not correct when using cblabel and postscript terminal Christoph Bersch <usenet@bersch.net> - 2011-04-05 08:59 +0200
    Re: Right margin in pm3d plot not correct when using cblabel and postscript terminal Uwe Scholz <nurfuernews@web.de> - 2011-04-05 19:51 +0000
  Re: Right margin in pm3d plot not correct when using cblabel and postscript terminal Petr Mikulik <mikulik@physics.muni.cz> - 2011-04-06 08:42 +0000
    Re: Right margin in pm3d plot not correct when using cblabel and postscript terminal Uwe Scholz <nurfuernews@web.de> - 2011-04-06 20:07 +0000

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