gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] loading an image

[Thomas S. <t.s...@fz...>]

there is no 'image.dem' in the 'demo' directory of version 4.0

'image.dem' is in the 'demo' directory starting from version 4.1/4.2

that means that features of version 4.2 may be not present in
version 4.0 and so 'image.dem' is not garanteed to work - and
obviously it doesn't work.
reason: the 'GPVAL_*' variables don't exist in version 4.0


o3hq wrote:
> 
> version 4.0
> thank you
> 
> 
> Thomas Sefzick wrote:
>> 
>> which version of gnuplot are you using?
>> 
>> 
>> o3hq wrote:
>>> 
>>> I have a problem loading an image. When I try to load it
>>> 
>>> gnuplot> load 'image.dem' 
>>> 
>>> the message that appears next is
>>> 
>>> gnuplot> if ((GPVAL_VERSION == 4.1 || GPVAL_VERSION == 4.2) && 
>>> (!strstrt(GPVAL_COMPILE_OPTIONS,"+IMAGE")))     print ">>> Skipping demo
>>> <<<\n" ;     print "This copy of gnuplot was built without support for
>>> plotting images" ;     exit ;
>>>                                                                                                
>>> ^
>>>          "image.dem", line 16: invalid expression 
>>> 
>>> I have no idea of what I have to do t continue. If I print any of these
>>> options, I'm still not able to finish loading the image. What I have to
>>> do? Thanks
>>> 
>> 
>> 
> 
> 

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Re: [Gnuplot-info] loading an image

[Thomas S. <t.s...@fz...>]

which version of gnuplot are you using?


o3hq wrote:
> 
> I have a problem loading an image. When I try to load it
> 
> gnuplot> load 'image.dem' 
> 
> the message that appears next is
> 
> gnuplot> if ((GPVAL_VERSION == 4.1 || GPVAL_VERSION == 4.2) && 
> (!strstrt(GPVAL_COMPILE_OPTIONS,"+IMAGE")))     print ">>> Skipping demo
> <<<\n" ;     print "This copy of gnuplot was built without support for
> plotting images" ;     exit ;
>                                                                                                
> ^
>          "image.dem", line 16: invalid expression 
> 
> I have no idea of what I have to do t continue. If I print any of these
> options, I'm still not able to finish loading the image. What I have to
> do? Thanks
> 

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Re: [Gnuplot-info] command line arguments to gnuplot scripts

[LukasP <LP...@po...>]

Hello all,

I have the same problem - how to access parameters passed on the system
command line.

I am a Windows user, so solutions described above are unreachable for me.

Let's have system command:

wgnuplot.exe tab2png.gp test.tab

Inside the tab2png.gp, I need to access test.tab passed on the command line.
How to do it?

Do you think it would be possible or useful to implement built-in variables
(e.g. ARG1, ... ARG9) which would represent the command line arguments for
[w]gnuplot?

Or to create a built-in function e.g. getenv(varname) which would get the
environment variable? So it would be possible to write to the command line:

C:\> wgnuplot.exe tab2png.gp test.tab

or:

C:\> set FILE=test.tab
C:\> wgnuplot.exe tab2png.gp

And the tab2png would look e.g.:

plot $ARGV1 using 1:2 with lines

or:

set FILE getenv("FILE")
plot FILE using 1:2 with lines

Thank you in advance

Lukas
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Re: [Gnuplot-info] depthorder

[Zhong R. <re...@uc...>]

Great!  It works now, but spins a bit slower.  Thank you very
much.

Zhong


---- Original message ----
>Date: Wed, 16 Dec 2009 12:21:05 -0800 (PST)
>From: Thomas Sefzick <t.s...@fz...>  
>Subject: Re: [Gnuplot-info] depthorder  
>To: gnu...@li...
>
>
>interesting:
>splot '-' u 1:2:3:4 w pm3d
>seems to work.
>
>
>Thomas Sefzick wrote:
>> 
>> 'set pm3d depthorder'
>> should according to the manual work in the same way as the
>> normal hidden3d algorithm.
>> but it obviously doesn't do this.
>>  
>> 
>> renzresearch wrote:
>>> 
>>> Thank you Thomas,
>>> 
>>> The sphere was just an example.  It is not what I want to
>>> draw.  The following script is closer to my real case, which
>>> draws a triangle and a quadrangle.  depthorder is used, but
>>> the quadrangle is always in the foreground and the triangle is
>>> always in the background.  Does the option depthorder mean the
>>> drawing order is sorted?
>>> 
>>> Zhong
>>> 
>>> 
>>> set terminal x11 0 size 1024,1024
>>> set view equal xyz
>>> unset surface
>>> unset contour
>>> set xlabel "x"
>>> set xrange [ 6.31720 : 43.9094 ] noreverse nowriteback
>>> set ylabel "y"
>>> set yrange [ 80.5847 : 118.177 ] noreverse nowriteback
>>> set zlabel "z"
>>> set zrange [ 13.7818 : 51.3741 ] noreverse nowriteback
>>> set pm3d implicit at s
>>> set pm3d depthorder
>>> set pm3d interpolate 1,1 flush begin ftriangles hidden3d 100
>>> corners2color mean
>>> set palette defined ( 0 0.8275 0.8275 0.8275, 0.1667 0.6275
>>> 0.1255 0.9412, 0.5 1 0.498 0.3137,\
>>>      0.8333 1 1 0, 1 0.5647 0.9333 0.5647 )
>>> splot '-' u 1:2:3:4
>>> 14.7151 89.5297 25.4546 0
>>> 
>>> 14.7151 89.5297 25.4546 0
>>> 14.807 87.5368 24.2974 0
>>> 16.5296 89.0361 24.1387 0
>>> 
>>> 
>>> 20.3047 93.7361 25.7469 0
>>> 22.1518 92.287 25.0393 0.0215407
>>> 
>>> 21.1107 92.4429 25.874 0.0188149
>>> 22.9446 91.0527 24.9673 0.0366333
>>> e
>>> 
>>> 
>>> ---- Original message ----
>>>>Date: Mon, 14 Dec 2009 08:50:07 -0800 (PST)
>>>>From: Thomas Sefzick <t.s...@fz...>  
>>>>Subject: Re: [Gnuplot-info] rotation center  
>>>>To: gnu...@li...
>>>>
>>>>
>>>>in addition you should set:
>>>>
>>>>set samp 25,10
>>>>set iso 10,20
>>>>set urange [-pi:pi]
>>>>set vrange [0:pi]
>>>>set pm3d at s ftriangles depthorder hidden3d 100
>>>>unset surf
>>>>
>>>>this makes the sphere look much better.
>>>>
>>>>
>>>>renzresearch wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> ---- Original message ----
>>>>>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>>>>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>>>>>Subject: Re: [Gnuplot-info] rotation center  
>>>>>>To: re...@uc...
>>>>>>Cc: gnu...@li...
>>>>>>
>>>>>>Zhong Ren wrote:
>>>>>>> Please consider the following script that draws a sphere.
>>>  Why
>>>>>>> the rotation center is not at the center of the
sphere, when
>>>>>>> the graphics is spun by the mouse?
>>>>>>
>>>>>>Why should it be?  Did you really expect gnuplot to have a
>>>>> special rule 
>>>>>>like "whenever there is exactly one spherical surface among
>>>>> the plotted 
>>>>>>things, rotation will magically center around that"?
>>>>> 
>>>>> No, you didn't get my question.  Please consider my original
>>>>> case again:
>>>>> 
>>>>> Please consider the following script that draws a
sphere.  Why
>>>>> the rotation center is not at the center of the sphere, when
>>>>> the graphics is spun by the mouse?  If I change to "set
xrange
>>>>> [ 6 :  44]", the rotation center becomes the center of the
>>>>> sphere.  This makes the behavior of one of my large
>>>>> applications unpredictable.  Is there a way to specify the
>>>>> rotation center?  If not, how is the center selected by
>>> Gnuplot?
>>>>> 
>>>>> set terminal x11 0 size 1024,1024
>>>>> set parametric
>>>>> set view equal xyz
>>>>> set xlabel "x"
>>>>> set ylabel "y"
>>>>> set zlabel "z"
>>>>> set xrange [ 6 :  43]
>>>>> set yrange [80 : 118]
>>>>> set zrange [13 :  51]
>>>>> set pm3d implicit at s
>>>>> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
>>>>> 
>>>>> The rotation center is indeed at the spherical center when
>>>>> xrange is [ 6 :  44], because (6+44)/2 = 25, which is
exactly
>>>>> the spherical center.  When xrange is [ 6 :  43], the
rotation
>>>>> center should be (6+43)/2 = 24.5, but it is not.  It is near
>>>>> x=33.  What makes Gnuplot to select the rotation center?
>>>>> 
>>>>>>
>>>>>>> If not, how is the center selected by Gnuplot?
>>>>>>
>>>>>>Mouse rotates the entire graph box, so, kind-of obviously,
>>> it is 
>>>>>>centered around the center of the graph box.  So if you want
>>>>> rotation to 
>>>>>>be around a particular point, make all three axis ranges
>>>>> symmetric 
>>>>>>around it:
>>>>>>
>>>>>>	set xrange [mid_x - size_x : mid_x + size_x]
>>>>>>	# likewise for y and z
>>>>>>
>>>>> 
>>>>> This is what I thought, but it is not working for me as the
>>>>> example I gave above.  Gnuplot seems to have a complex
rule to
>>>>> select the rotation center.  I really prefer a user selected
>>>>> rotation center.
>>>>>
>>>
------------------------------------------------------------------------------
>>>>> Return on Information:
>>>>> Google Enterprise Search pays you back
>>>>> Get the facts.
>>>>> http://p.sf.net/sfu/google-dev2dev
>>>>> _______________________________________________
>>>>> gnuplot-info mailing list
>>>>> gnu...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>>>> 
>>>>> 
>>>>
>>>>-- 
>>>>View this message in context:
>>> http://old.nabble.com/rotation-center-tp26763320p26779919.html
>>>>Sent from the Gnuplot - User mailing list archive at
Nabble.com.
>>>>
>>>>
>>>>------------------------------------------------------------------------------
>>>>Return on Information:
>>>>Google Enterprise Search pays you back
>>>>Get the facts.
>>>>http://p.sf.net/sfu/google-dev2dev
>>>>_______________________________________________
>>>>gnuplot-info mailing list
>>>>gnu...@li...
>>>>https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>> 
>>>
------------------------------------------------------------------------------
>>> Return on Information:
>>> Google Enterprise Search pays you back
>>> Get the facts.
>>> http://p.sf.net/sfu/google-dev2dev
>>> _______________________________________________
>>> gnuplot-info mailing list
>>> gnu...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>> 
>>> 
>> 
>> 
>
>-- 
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http://old.nabble.com/rotation-center-tp26763320p26817820.html
>Sent from the Gnuplot - User mailing list archive at Nabble.com.
>
>
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Re: [Gnuplot-info] depthorder

[Thomas S. <t.s...@fz...>]

interesting:
splot '-' u 1:2:3:4 w pm3d
seems to work.


Thomas Sefzick wrote:
> 
> 'set pm3d depthorder'
> should according to the manual work in the same way as the
> normal hidden3d algorithm.
> but it obviously doesn't do this.
>  
> 
> renzresearch wrote:
>> 
>> Thank you Thomas,
>> 
>> The sphere was just an example.  It is not what I want to
>> draw.  The following script is closer to my real case, which
>> draws a triangle and a quadrangle.  depthorder is used, but
>> the quadrangle is always in the foreground and the triangle is
>> always in the background.  Does the option depthorder mean the
>> drawing order is sorted?
>> 
>> Zhong
>> 
>> 
>> set terminal x11 0 size 1024,1024
>> set view equal xyz
>> unset surface
>> unset contour
>> set xlabel "x"
>> set xrange [ 6.31720 : 43.9094 ] noreverse nowriteback
>> set ylabel "y"
>> set yrange [ 80.5847 : 118.177 ] noreverse nowriteback
>> set zlabel "z"
>> set zrange [ 13.7818 : 51.3741 ] noreverse nowriteback
>> set pm3d implicit at s
>> set pm3d depthorder
>> set pm3d interpolate 1,1 flush begin ftriangles hidden3d 100
>> corners2color mean
>> set palette defined ( 0 0.8275 0.8275 0.8275, 0.1667 0.6275
>> 0.1255 0.9412, 0.5 1 0.498 0.3137,\
>>      0.8333 1 1 0, 1 0.5647 0.9333 0.5647 )
>> splot '-' u 1:2:3:4
>> 14.7151 89.5297 25.4546 0
>> 
>> 14.7151 89.5297 25.4546 0
>> 14.807 87.5368 24.2974 0
>> 16.5296 89.0361 24.1387 0
>> 
>> 
>> 20.3047 93.7361 25.7469 0
>> 22.1518 92.287 25.0393 0.0215407
>> 
>> 21.1107 92.4429 25.874 0.0188149
>> 22.9446 91.0527 24.9673 0.0366333
>> e
>> 
>> 
>> ---- Original message ----
>>>Date: Mon, 14 Dec 2009 08:50:07 -0800 (PST)
>>>From: Thomas Sefzick <t.s...@fz...>  
>>>Subject: Re: [Gnuplot-info] rotation center  
>>>To: gnu...@li...
>>>
>>>
>>>in addition you should set:
>>>
>>>set samp 25,10
>>>set iso 10,20
>>>set urange [-pi:pi]
>>>set vrange [0:pi]
>>>set pm3d at s ftriangles depthorder hidden3d 100
>>>unset surf
>>>
>>>this makes the sphere look much better.
>>>
>>>
>>>renzresearch wrote:
>>>> 
>>>> 
>>>> 
>>>> ---- Original message ----
>>>>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>>>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>>>>Subject: Re: [Gnuplot-info] rotation center  
>>>>>To: re...@uc...
>>>>>Cc: gnu...@li...
>>>>>
>>>>>Zhong Ren wrote:
>>>>>> Please consider the following script that draws a sphere.
>>  Why
>>>>>> the rotation center is not at the center of the sphere, when
>>>>>> the graphics is spun by the mouse?
>>>>>
>>>>>Why should it be?  Did you really expect gnuplot to have a
>>>> special rule 
>>>>>like "whenever there is exactly one spherical surface among
>>>> the plotted 
>>>>>things, rotation will magically center around that"?
>>>> 
>>>> No, you didn't get my question.  Please consider my original
>>>> case again:
>>>> 
>>>> Please consider the following script that draws a sphere.  Why
>>>> the rotation center is not at the center of the sphere, when
>>>> the graphics is spun by the mouse?  If I change to "set xrange
>>>> [ 6 :  44]", the rotation center becomes the center of the
>>>> sphere.  This makes the behavior of one of my large
>>>> applications unpredictable.  Is there a way to specify the
>>>> rotation center?  If not, how is the center selected by
>> Gnuplot?
>>>> 
>>>> set terminal x11 0 size 1024,1024
>>>> set parametric
>>>> set view equal xyz
>>>> set xlabel "x"
>>>> set ylabel "y"
>>>> set zlabel "z"
>>>> set xrange [ 6 :  43]
>>>> set yrange [80 : 118]
>>>> set zrange [13 :  51]
>>>> set pm3d implicit at s
>>>> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
>>>> 
>>>> The rotation center is indeed at the spherical center when
>>>> xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
>>>> the spherical center.  When xrange is [ 6 :  43], the rotation
>>>> center should be (6+43)/2 = 24.5, but it is not.  It is near
>>>> x=33.  What makes Gnuplot to select the rotation center?
>>>> 
>>>>>
>>>>>> If not, how is the center selected by Gnuplot?
>>>>>
>>>>>Mouse rotates the entire graph box, so, kind-of obviously,
>> it is 
>>>>>centered around the center of the graph box.  So if you want
>>>> rotation to 
>>>>>be around a particular point, make all three axis ranges
>>>> symmetric 
>>>>>around it:
>>>>>
>>>>>	set xrange [mid_x - size_x : mid_x + size_x]
>>>>>	# likewise for y and z
>>>>>
>>>> 
>>>> This is what I thought, but it is not working for me as the
>>>> example I gave above.  Gnuplot seems to have a complex rule to
>>>> select the rotation center.  I really prefer a user selected
>>>> rotation center.
>>>>
>> ------------------------------------------------------------------------------
>>>> Return on Information:
>>>> Google Enterprise Search pays you back
>>>> Get the facts.
>>>> http://p.sf.net/sfu/google-dev2dev
>>>> _______________________________________________
>>>> gnuplot-info mailing list
>>>> gnu...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>>> 
>>>> 
>>>
>>>-- 
>>>View this message in context:
>> http://old.nabble.com/rotation-center-tp26763320p26779919.html
>>>Sent from the Gnuplot - User mailing list archive at Nabble.com.
>>>
>>>
>>>------------------------------------------------------------------------------
>>>Return on Information:
>>>Google Enterprise Search pays you back
>>>Get the facts.
>>>http://p.sf.net/sfu/google-dev2dev
>>>_______________________________________________
>>>gnuplot-info mailing list
>>>gnu...@li...
>>>https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>> 
>> ------------------------------------------------------------------------------
>> Return on Information:
>> Google Enterprise Search pays you back
>> Get the facts.
>> http://p.sf.net/sfu/google-dev2dev
>> _______________________________________________
>> gnuplot-info mailing list
>> gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>> 
>> 
> 
> 

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Re: [Gnuplot-info] depthorder

[Thomas S. <t.s...@fz...>]

'set pm3d depthorder'
should according to the manual work in the same way as the
normal hidden3d algorithm.
but it obviously doesn't do this.
 

renzresearch wrote:
> 
> Thank you Thomas,
> 
> The sphere was just an example.  It is not what I want to
> draw.  The following script is closer to my real case, which
> draws a triangle and a quadrangle.  depthorder is used, but
> the quadrangle is always in the foreground and the triangle is
> always in the background.  Does the option depthorder mean the
> drawing order is sorted?
> 
> Zhong
> 
> 
> set terminal x11 0 size 1024,1024
> set view equal xyz
> unset surface
> unset contour
> set xlabel "x"
> set xrange [ 6.31720 : 43.9094 ] noreverse nowriteback
> set ylabel "y"
> set yrange [ 80.5847 : 118.177 ] noreverse nowriteback
> set zlabel "z"
> set zrange [ 13.7818 : 51.3741 ] noreverse nowriteback
> set pm3d implicit at s
> set pm3d depthorder
> set pm3d interpolate 1,1 flush begin ftriangles hidden3d 100
> corners2color mean
> set palette defined ( 0 0.8275 0.8275 0.8275, 0.1667 0.6275
> 0.1255 0.9412, 0.5 1 0.498 0.3137,\
>      0.8333 1 1 0, 1 0.5647 0.9333 0.5647 )
> splot '-' u 1:2:3:4
> 14.7151 89.5297 25.4546 0
> 
> 14.7151 89.5297 25.4546 0
> 14.807 87.5368 24.2974 0
> 16.5296 89.0361 24.1387 0
> 
> 
> 20.3047 93.7361 25.7469 0
> 22.1518 92.287 25.0393 0.0215407
> 
> 21.1107 92.4429 25.874 0.0188149
> 22.9446 91.0527 24.9673 0.0366333
> e
> 
> 
> ---- Original message ----
>>Date: Mon, 14 Dec 2009 08:50:07 -0800 (PST)
>>From: Thomas Sefzick <t.s...@fz...>  
>>Subject: Re: [Gnuplot-info] rotation center  
>>To: gnu...@li...
>>
>>
>>in addition you should set:
>>
>>set samp 25,10
>>set iso 10,20
>>set urange [-pi:pi]
>>set vrange [0:pi]
>>set pm3d at s ftriangles depthorder hidden3d 100
>>unset surf
>>
>>this makes the sphere look much better.
>>
>>
>>renzresearch wrote:
>>> 
>>> 
>>> 
>>> ---- Original message ----
>>>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>>>Subject: Re: [Gnuplot-info] rotation center  
>>>>To: re...@uc...
>>>>Cc: gnu...@li...
>>>>
>>>>Zhong Ren wrote:
>>>>> Please consider the following script that draws a sphere.
>  Why
>>>>> the rotation center is not at the center of the sphere, when
>>>>> the graphics is spun by the mouse?
>>>>
>>>>Why should it be?  Did you really expect gnuplot to have a
>>> special rule 
>>>>like "whenever there is exactly one spherical surface among
>>> the plotted 
>>>>things, rotation will magically center around that"?
>>> 
>>> No, you didn't get my question.  Please consider my original
>>> case again:
>>> 
>>> Please consider the following script that draws a sphere.  Why
>>> the rotation center is not at the center of the sphere, when
>>> the graphics is spun by the mouse?  If I change to "set xrange
>>> [ 6 :  44]", the rotation center becomes the center of the
>>> sphere.  This makes the behavior of one of my large
>>> applications unpredictable.  Is there a way to specify the
>>> rotation center?  If not, how is the center selected by
> Gnuplot?
>>> 
>>> set terminal x11 0 size 1024,1024
>>> set parametric
>>> set view equal xyz
>>> set xlabel "x"
>>> set ylabel "y"
>>> set zlabel "z"
>>> set xrange [ 6 :  43]
>>> set yrange [80 : 118]
>>> set zrange [13 :  51]
>>> set pm3d implicit at s
>>> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
>>> 
>>> The rotation center is indeed at the spherical center when
>>> xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
>>> the spherical center.  When xrange is [ 6 :  43], the rotation
>>> center should be (6+43)/2 = 24.5, but it is not.  It is near
>>> x=33.  What makes Gnuplot to select the rotation center?
>>> 
>>>>
>>>>> If not, how is the center selected by Gnuplot?
>>>>
>>>>Mouse rotates the entire graph box, so, kind-of obviously,
> it is 
>>>>centered around the center of the graph box.  So if you want
>>> rotation to 
>>>>be around a particular point, make all three axis ranges
>>> symmetric 
>>>>around it:
>>>>
>>>>	set xrange [mid_x - size_x : mid_x + size_x]
>>>>	# likewise for y and z
>>>>
>>> 
>>> This is what I thought, but it is not working for me as the
>>> example I gave above.  Gnuplot seems to have a complex rule to
>>> select the rotation center.  I really prefer a user selected
>>> rotation center.
>>>
> ------------------------------------------------------------------------------
>>> Return on Information:
>>> Google Enterprise Search pays you back
>>> Get the facts.
>>> http://p.sf.net/sfu/google-dev2dev
>>> _______________________________________________
>>> gnuplot-info mailing list
>>> gnu...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>> 
>>> 
>>
>>-- 
>>View this message in context:
> http://old.nabble.com/rotation-center-tp26763320p26779919.html
>>Sent from the Gnuplot - User mailing list archive at Nabble.com.
>>
>>
>>------------------------------------------------------------------------------
>>Return on Information:
>>Google Enterprise Search pays you back
>>Get the facts.
>>http://p.sf.net/sfu/google-dev2dev
>>_______________________________________________
>>gnuplot-info mailing list
>>gnu...@li...
>>https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> ------------------------------------------------------------------------------
> Return on Information:
> Google Enterprise Search pays you back
> Get the facts.
> http://p.sf.net/sfu/google-dev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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[Gnuplot-info] mesh and contor plot

[balaji n. <bal...@ho...>]

Dear users ! 

i have a file which has x y and z 


how to plot mesh plot and 
contour plot in gnuplot 

regards 
harish


 		 	   		  
_________________________________________________________________
New Windows 7: Find the right PC for you. Learn more.
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Re: [Gnuplot-info] Diode curves

[Thomas S. <t.s...@fz...>]

gnuplot version >= 4.4:

plot for [i=2:100] 'datafilename' using 1:i


netbeanpat wrote:
> 
> Hi all,
> 
>  I am trying to plot data that is curve traces for multiple diodes.
> 
> I have all of the data in one file. The example below is the voltage data
> for 2 diodes.
> 
> The first column is "Force Current" and is the same for all of the diodes. 
> 
> Then each column to the left of the "Force Current " is the voltage for
> one diode. 
> There will be humndreds of columns of diode data (voltages) though.
> 
> -4e6 -0.4753617 -0.4753477
> -3e6 -0.4625143 -0.4625148
> -2e6 -0.4461529 -0.4461481
> -1e6 -0.4214713 -0.4214727
> 0 -0.006318067 -0.006336472
> 1e6 0.4854789 0.4854818
> 2e6 0.5099769 0.5099762
> 3e6 0.5264349 0.5264394
> 4e6 0.5395354 0.5395422
> 
> 
> I can't have hundreds of files each containing one diode because it's too
> cumbersome.
> 
> How can I plot this in gnu plot where I can see all of the diode plots at
> the same time?
> 
> 
> 
> 
> 
> 

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Re: [Gnuplot-info] Vanishing small tics

[Hans-Bernhard B. <HBB...@t-...>]

Trillianx wrote:
> I have been having this problem with vanishing small tics. This ONLY works
> when I let gnuplot use its default x-axis values. When I change them using
> "set xtics" command as shown below, they disappear. 

That's not so much a problem but rather a documented limitation of minor 
tick placement.  By overriding gnuplot's tic placement, you rob it of 
the knowledge needed to place minor tics by itself.

If you still want minor tics, see "help mtics" about how to work around 
that limitation.

[Gnuplot-info] Vanishing small tics

[Trillianx <ro...@ph...>]

I have been having this problem with vanishing small tics. This ONLY works
when I let gnuplot use its default x-axis values. When I change them using
"set xtics" command as shown below, they disappear. 

set xtics ("M5.0" 1.00000, "M6.0" 2.00000, "M7.0" 3.0, "M8.0" 4.0, "M9.0"
5.0)

The small tics in the x-axis disappear but they remain in the y-axis. The
entire code is given below. I also have the screenshot attached. 
http://old.nabble.com/file/p26780264/screen-capture-2.jpg 

Thanks for the help in advance! 

Trillian 


set terminal wxt enhanced
set mxtics 5
set mytics 5
#*****************************************************************************
set xrange[0.5:6]
set yrange[0.0:1.0]
unset key
set encoding iso_8859_1
set xlabel "Wavelength (\305)" 
set ylabel "Equivalent Width"
set title "Order 60 at 1.2820"
set label "{/Symbol m}m" at 3.79,1.05
#*****************************************************************************
f(x) = m*x + b
fit [1:5.5] m*x + b "12820.dat" u 1:2 via m,b
#set label "y = 0.933x + 1.051" at 0.75, 6.0
set xtics ("M5.0" 1.00000, "M6.0" 2.00000, "M7.0" 3.0, "M8.0" 4.0, "M9.0"
5.0)
#******************************************************************************
set terminal postscript eps enhanced
set output 'ew65.eps'
#*******************************************************************************
plot "12820_mean.dat", f(x)
#plot "12820.dat","12820_mean.dat", f(x)
#plot "12820_mean.dat" w errorbars, f(x) 
#*******************************************************************************
!epstopdf ew65.eps && rm ew65.eps
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Re: [Gnuplot-info] Diode curves

[netbeanpat <lee...@in...>]

I was able to plot both columns using this syntax in a batch file.

plot "allPins.dat" using 1:2 title "Series 1", "allPins.dat" using 1:3 title
"Series 2"
pause -1

~
"allPins.gp" 2L, 97C

Is there a better way so that I don't need hundreds of commands seperated by
comma?

Like a range command to provide the column range of say 1-450?



netbeanpat wrote:
> 
> Hi all,
> 
>  I am trying to plot data that is curve traces for multiple diodes.
> 
> I have all of the data in one file. The example below is the voltage data
> for 2 diodes.
> 
> The first column is "Force Current" and is the same for all of the diodes. 
> 
> Then each column to the left of the "Force Current " is the voltage for
> one diode. 
> There will be humndreds of columns of diode data (voltages) though.
> 
> -4e6 -0.4753617 -0.4753477
> -3e6 -0.4625143 -0.4625148
> -2e6 -0.4461529 -0.4461481
> -1e6 -0.4214713 -0.4214727
> 0 -0.006318067 -0.006336472
> 1e6 0.4854789 0.4854818
> 2e6 0.5099769 0.5099762
> 3e6 0.5264349 0.5264394
> 4e6 0.5395354 0.5395422
> 
> 
> I can't have hundreds of files each containing one diode because it's too
> cumbersome.
> 
> How can I plot this in gnu plot where I can see all of the diode plots at
> the same time?
> 
> 
> 
> 
> 
> 

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[Gnuplot-info] Diode curves

[netbeanpat <lee...@in...>]

Hi all,

 I am trying to plot data that is curve traces for multiple diodes.

I have all of the data in one file. The example below is the voltage data
for 2 diodes.

The first column is "Force Current" and is the same for all of the diodes. 

Then each column to the left of the "Force Current " is the voltage for one
diode. 
There will be humndreds of columns of diode data (voltages) though.

-4e6 -0.4753617 -0.4753477
-3e6 -0.4625143 -0.4625148
-2e6 -0.4461529 -0.4461481
-1e6 -0.4214713 -0.4214727
0 -0.006318067 -0.006336472
1e6 0.4854789 0.4854818
2e6 0.5099769 0.5099762
3e6 0.5264349 0.5264394
4e6 0.5395354 0.5395422


I can't have hundreds of files each containing one diode because it's too
cumbersome.

How can I plot this in gnu plot where I can see all of the diode plots at
the same time?





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Re: [Gnuplot-info] depthorder

[Zhong R. <re...@uc...>]

Thank you Thomas,

The sphere was just an example.  It is not what I want to
draw.  The following script is closer to my real case, which
draws a triangle and a quadrangle.  depthorder is used, but
the quadrangle is always in the foreground and the triangle is
always in the background.  Does the option depthorder mean the
drawing order is sorted?

Zhong


set terminal x11 0 size 1024,1024
set view equal xyz
unset surface
unset contour
set xlabel "x"
set xrange [ 6.31720 : 43.9094 ] noreverse nowriteback
set ylabel "y"
set yrange [ 80.5847 : 118.177 ] noreverse nowriteback
set zlabel "z"
set zrange [ 13.7818 : 51.3741 ] noreverse nowriteback
set pm3d implicit at s
set pm3d depthorder
set pm3d interpolate 1,1 flush begin ftriangles hidden3d 100
corners2color mean
set palette defined ( 0 0.8275 0.8275 0.8275, 0.1667 0.6275
0.1255 0.9412, 0.5 1 0.498 0.3137,\
     0.8333 1 1 0, 1 0.5647 0.9333 0.5647 )
splot '-' u 1:2:3:4
14.7151 89.5297 25.4546 0

14.7151 89.5297 25.4546 0
14.807 87.5368 24.2974 0
16.5296 89.0361 24.1387 0


20.3047 93.7361 25.7469 0
22.1518 92.287 25.0393 0.0215407

21.1107 92.4429 25.874 0.0188149
22.9446 91.0527 24.9673 0.0366333
e


---- Original message ----
>Date: Mon, 14 Dec 2009 08:50:07 -0800 (PST)
>From: Thomas Sefzick <t.s...@fz...>  
>Subject: Re: [Gnuplot-info] rotation center  
>To: gnu...@li...
>
>
>in addition you should set:
>
>set samp 25,10
>set iso 10,20
>set urange [-pi:pi]
>set vrange [0:pi]
>set pm3d at s ftriangles depthorder hidden3d 100
>unset surf
>
>this makes the sphere look much better.
>
>
>renzresearch wrote:
>> 
>> 
>> 
>> ---- Original message ----
>>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>>Subject: Re: [Gnuplot-info] rotation center  
>>>To: re...@uc...
>>>Cc: gnu...@li...
>>>
>>>Zhong Ren wrote:
>>>> Please consider the following script that draws a sphere.
 Why
>>>> the rotation center is not at the center of the sphere, when
>>>> the graphics is spun by the mouse?
>>>
>>>Why should it be?  Did you really expect gnuplot to have a
>> special rule 
>>>like "whenever there is exactly one spherical surface among
>> the plotted 
>>>things, rotation will magically center around that"?
>> 
>> No, you didn't get my question.  Please consider my original
>> case again:
>> 
>> Please consider the following script that draws a sphere.  Why
>> the rotation center is not at the center of the sphere, when
>> the graphics is spun by the mouse?  If I change to "set xrange
>> [ 6 :  44]", the rotation center becomes the center of the
>> sphere.  This makes the behavior of one of my large
>> applications unpredictable.  Is there a way to specify the
>> rotation center?  If not, how is the center selected by
Gnuplot?
>> 
>> set terminal x11 0 size 1024,1024
>> set parametric
>> set view equal xyz
>> set xlabel "x"
>> set ylabel "y"
>> set zlabel "z"
>> set xrange [ 6 :  43]
>> set yrange [80 : 118]
>> set zrange [13 :  51]
>> set pm3d implicit at s
>> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
>> 
>> The rotation center is indeed at the spherical center when
>> xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
>> the spherical center.  When xrange is [ 6 :  43], the rotation
>> center should be (6+43)/2 = 24.5, but it is not.  It is near
>> x=33.  What makes Gnuplot to select the rotation center?
>> 
>>>
>>>> If not, how is the center selected by Gnuplot?
>>>
>>>Mouse rotates the entire graph box, so, kind-of obviously,
it is 
>>>centered around the center of the graph box.  So if you want
>> rotation to 
>>>be around a particular point, make all three axis ranges
>> symmetric 
>>>around it:
>>>
>>>	set xrange [mid_x - size_x : mid_x + size_x]
>>>	# likewise for y and z
>>>
>> 
>> This is what I thought, but it is not working for me as the
>> example I gave above.  Gnuplot seems to have a complex rule to
>> select the rotation center.  I really prefer a user selected
>> rotation center.
>>
------------------------------------------------------------------------------
>> Return on Information:
>> Google Enterprise Search pays you back
>> Get the facts.
>> http://p.sf.net/sfu/google-dev2dev
>> _______________________________________________
>> gnuplot-info mailing list
>> gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>> 
>> 
>
>-- 
>View this message in context:
http://old.nabble.com/rotation-center-tp26763320p26779919.html
>Sent from the Gnuplot - User mailing list archive at Nabble.com.
>
>
>------------------------------------------------------------------------------
>Return on Information:
>Google Enterprise Search pays you back
>Get the facts.
>http://p.sf.net/sfu/google-dev2dev
>_______________________________________________
>gnuplot-info mailing list
>gnu...@li...
>https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] rotation center

[Thomas S. <t.s...@fz...>]

in addition you should set:

set samp 25,10
set iso 10,20
set urange [-pi:pi]
set vrange [0:pi]
set pm3d at s ftriangles depthorder hidden3d 100
unset surf

this makes the sphere look much better.


renzresearch wrote:
> 
> 
> 
> ---- Original message ----
>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>Subject: Re: [Gnuplot-info] rotation center  
>>To: re...@uc...
>>Cc: gnu...@li...
>>
>>Zhong Ren wrote:
>>> Please consider the following script that draws a sphere.  Why
>>> the rotation center is not at the center of the sphere, when
>>> the graphics is spun by the mouse?
>>
>>Why should it be?  Did you really expect gnuplot to have a
> special rule 
>>like "whenever there is exactly one spherical surface among
> the plotted 
>>things, rotation will magically center around that"?
> 
> No, you didn't get my question.  Please consider my original
> case again:
> 
> Please consider the following script that draws a sphere.  Why
> the rotation center is not at the center of the sphere, when
> the graphics is spun by the mouse?  If I change to "set xrange
> [ 6 :  44]", the rotation center becomes the center of the
> sphere.  This makes the behavior of one of my large
> applications unpredictable.  Is there a way to specify the
> rotation center?  If not, how is the center selected by Gnuplot?
> 
> set terminal x11 0 size 1024,1024
> set parametric
> set view equal xyz
> set xlabel "x"
> set ylabel "y"
> set zlabel "z"
> set xrange [ 6 :  43]
> set yrange [80 : 118]
> set zrange [13 :  51]
> set pm3d implicit at s
> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
> 
> The rotation center is indeed at the spherical center when
> xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
> the spherical center.  When xrange is [ 6 :  43], the rotation
> center should be (6+43)/2 = 24.5, but it is not.  It is near
> x=33.  What makes Gnuplot to select the rotation center?
> 
>>
>>> If not, how is the center selected by Gnuplot?
>>
>>Mouse rotates the entire graph box, so, kind-of obviously, it is 
>>centered around the center of the graph box.  So if you want
> rotation to 
>>be around a particular point, make all three axis ranges
> symmetric 
>>around it:
>>
>>	set xrange [mid_x - size_x : mid_x + size_x]
>>	# likewise for y and z
>>
> 
> This is what I thought, but it is not working for me as the
> example I gave above.  Gnuplot seems to have a complex rule to
> select the rotation center.  I really prefer a user selected
> rotation center.
> ------------------------------------------------------------------------------
> Return on Information:
> Google Enterprise Search pays you back
> Get the facts.
> http://p.sf.net/sfu/google-dev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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[Gnuplot-info] depthorder

[Zhong R. <re...@uc...>]

Does the option depthorder to set pm3d really work?  It does
not seem to work for me.  This is the set command I have:

set pm3d at s ftriangles depthorder hidden3d 100

Zhong

Re: [Gnuplot-info] rotation center

[Thomas S. <t.s...@fz...>]

seems that you are using gnuplot version 4.2.5
in versions >= 4.2.6 this bug has been corrected.


renzresearch wrote:
> 
> 
> 
> ---- Original message ----
>>Date: Sun, 13 Dec 2009 11:51:41 +0100
>>From: Hans-Bernhard Bröker <HBB...@t-...>  
>>Subject: Re: [Gnuplot-info] rotation center  
>>To: re...@uc...
>>Cc: gnu...@li...
>>
>>Zhong Ren wrote:
>>> Please consider the following script that draws a sphere.  Why
>>> the rotation center is not at the center of the sphere, when
>>> the graphics is spun by the mouse?
>>
>>Why should it be?  Did you really expect gnuplot to have a
> special rule 
>>like "whenever there is exactly one spherical surface among
> the plotted 
>>things, rotation will magically center around that"?
> 
> No, you didn't get my question.  Please consider my original
> case again:
> 
> Please consider the following script that draws a sphere.  Why
> the rotation center is not at the center of the sphere, when
> the graphics is spun by the mouse?  If I change to "set xrange
> [ 6 :  44]", the rotation center becomes the center of the
> sphere.  This makes the behavior of one of my large
> applications unpredictable.  Is there a way to specify the
> rotation center?  If not, how is the center selected by Gnuplot?
> 
> set terminal x11 0 size 1024,1024
> set parametric
> set view equal xyz
> set xlabel "x"
> set ylabel "y"
> set zlabel "z"
> set xrange [ 6 :  43]
> set yrange [80 : 118]
> set zrange [13 :  51]
> set pm3d implicit at s
> splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33
> 
> The rotation center is indeed at the spherical center when
> xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
> the spherical center.  When xrange is [ 6 :  43], the rotation
> center should be (6+43)/2 = 24.5, but it is not.  It is near
> x=33.  What makes Gnuplot to select the rotation center?
> 
>>
>>> If not, how is the center selected by Gnuplot?
>>
>>Mouse rotates the entire graph box, so, kind-of obviously, it is 
>>centered around the center of the graph box.  So if you want
> rotation to 
>>be around a particular point, make all three axis ranges
> symmetric 
>>around it:
>>
>>	set xrange [mid_x - size_x : mid_x + size_x]
>>	# likewise for y and z
>>
> 
> This is what I thought, but it is not working for me as the
> example I gave above.  Gnuplot seems to have a complex rule to
> select the rotation center.  I really prefer a user selected
> rotation center.
> ------------------------------------------------------------------------------
> Return on Information:
> Google Enterprise Search pays you back
> Get the facts.
> http://p.sf.net/sfu/google-dev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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Re: [Gnuplot-info] how to use $ for gnuplot in bash environtment

[febty f. <fe...@gm...>]

it works :)
Finally, I can solve my long time problem. Again, thanks very much.

Regards,
febty

2009/12/14 Rajarshi Tiwari <raj...@gm...>

> HI,
>
> use \$ in place of $ wherever it appears in the script
>
> Cheer
> :-)
>
>
>
> On Mon, Dec 14, 2009 at 10:53 AM, febty
>
> <fe...@gm...> wrote:
>
>>
>> Hi everybody,
>>
>> I need to use $ in gnuplot script. I wrote my script in bash environtment
>> because I must loop the same script for many files.
>> But, I found error message when I used $. I put $ between "" "" so I will
>> get ''$', but it was still being problem.
>> What the right mark to solve my problem?
>> Thanks..
>>
>>
>> Regards,
>> febty
>> --
>> View this message in context:
>> http://old.nabble.com/how-to-use-%24-for-gnuplot-in-bash-environtment-tp26773157p26773157.html
>> Sent from the Gnuplot - User mailing list archive at Nabble.com.
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Return on Information:
>> Google Enterprise Search pays you back
>> Get the facts.
>> http://p.sf.net/sfu/google-dev2dev
>> _______________________________________________
>> gnuplot-info mailing list
>> gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>
>
>


-- 

******
febty febriani
Indonesian Institute of Sciences
Research Center for Physics
Kompleks PUSPIPTEK
Serpong, Indonesia, 15314

[Gnuplot-info] how to use $ for gnuplot in bash environtment

[febty <fe...@gm...>]

Hi everybody,

I need to use $ in gnuplot script. I wrote my script in bash environtment
because I must loop the same script for many files. 
But, I found error message when I used $. I put $ between "" "" so I will
get ''$', but it was still being problem.
What the right mark to solve my problem?
Thanks..


Regards,
febty
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Re: [Gnuplot-info] rotation center

[Zhong R. <re...@uc...>]

---- Original message ----
>Date: Sun, 13 Dec 2009 11:51:41 +0100
>From: Hans-Bernhard Bröker <HBB...@t-...>  
>Subject: Re: [Gnuplot-info] rotation center  
>To: re...@uc...
>Cc: gnu...@li...
>
>Zhong Ren wrote:
>> Please consider the following script that draws a sphere.  Why
>> the rotation center is not at the center of the sphere, when
>> the graphics is spun by the mouse?
>
>Why should it be?  Did you really expect gnuplot to have a
special rule 
>like "whenever there is exactly one spherical surface among
the plotted 
>things, rotation will magically center around that"?

No, you didn't get my question.  Please consider my original
case again:

Please consider the following script that draws a sphere.  Why
the rotation center is not at the center of the sphere, when
the graphics is spun by the mouse?  If I change to "set xrange
[ 6 :  44]", the rotation center becomes the center of the
sphere.  This makes the behavior of one of my large
applications unpredictable.  Is there a way to specify the
rotation center?  If not, how is the center selected by Gnuplot?

set terminal x11 0 size 1024,1024
set parametric
set view equal xyz
set xlabel "x"
set ylabel "y"
set zlabel "z"
set xrange [ 6 :  43]
set yrange [80 : 118]
set zrange [13 :  51]
set pm3d implicit at s
splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33

The rotation center is indeed at the spherical center when
xrange is [ 6 :  44], because (6+44)/2 = 25, which is exactly
the spherical center.  When xrange is [ 6 :  43], the rotation
center should be (6+43)/2 = 24.5, but it is not.  It is near
x=33.  What makes Gnuplot to select the rotation center?

>
>> If not, how is the center selected by Gnuplot?
>
>Mouse rotates the entire graph box, so, kind-of obviously, it is 
>centered around the center of the graph box.  So if you want
rotation to 
>be around a particular point, make all three axis ranges
symmetric 
>around it:
>
>	set xrange [mid_x - size_x : mid_x + size_x]
>	# likewise for y and z
>

This is what I thought, but it is not working for me as the
example I gave above.  Gnuplot seems to have a complex rule to
select the rotation center.  I really prefer a user selected
rotation center.

[Gnuplot-info] Strange key title behavior when using the TikZ terminal

[drgz <sy...@ho...>]

Experiencing a problem when using the "script" below for making a plot. If i
change the terminal to epslatex, everything looks exactly as it should look
like, but when using the TikZ terminal the key titles behave strangly.

To get proper steps between each point I've added an invisible
pseudo-dataset
(http://old.nabble.com/symbol-points-of-curve-td18112970.html), but I don't
know if this is the reason for the key titles to become as they do.

Anyone who can point out the error in my *.gp file for making the plot
below? The strange thing is that this happens only with this plot. All other
plots I've made with the TikZ terminal look as they should, so there's
obviously something I do wrong here, but I just can't see what.

set key top right reverse Left
set key box lc rgb "black"
set key samplen 2 spacing 2
set grid
set xlabel "Conduction angle, $\\alpha$"
set ylabel "Amplitude"
set xrange [0:2*pi]
set yrange [-0.1:0.6]
set xtics ("2$\\pi$" 0, "3$\\pi$/2" pi/2, "$\\pi$" pi, "$\\pi$/2" 3*pi/2,
"0" 2*pi) 

plot "idc.dat" not w l lt 1 lc rgb "#0000ff" lw 2, "idc.dat" ev 400 not w p
lt 1 lc rgb "#0000ff" pt 4 ps 1.5, 0/0 t "DC" w lp lt 1 lc rgb "#0000ff" lw
2 pt 4 ps 1.5, \
"in1.dat" not w l lt 1 lc rgb "#ff8c00" lw 2, "in1.dat" ev 400 not w p lt 1
lc rgb "#ff8c00" pt 8 ps 1.5, 0/0 t "1st" w lp lt 1 lc rgb "#ff8c00" lw 2 pt
8 ps 1.5, \
"in2.dat" not w l lt 1 lc rgb "#ff0000" lw 2, "in2.dat" ev 400 not w p lt 1
lc rgb "#ff0000" pt 10 ps 1.5, 0/0 t "2nd" w lp lt 1 lc rgb "#ff0000" lw 2
pt 10 ps 1.5, \
"in3.dat" not w l lt 1 lc rgb "#9400d3" lw 2, "in3.dat" ev 400 not w p lt 1
lc rgb "#9400d3" pt 12 ps 1.5, 0/0 t "3rd" w lp lt 1 lc rgb "#9400d3" lw 2
pt 12 ps 1.5, \
"in4.dat" not w l lt 1 lc rgb "#20b2aa" lw 2, "in4.dat" ev 400 not w p lt 1
lc rgb "#20b2aa" pt 11 ps 1.5, 0/0 t "4th" w lp lt 1 lc rgb "#20b2aa" lw 2
pt 11 ps 1.5, \
"in5.dat" not w l lt 1 lc rgb "#ff1493" lw 2, "in5.dat" ev 400 not w p lt 1
lc rgb "#ff1493" pt 9 ps 1.5, 0/0 t "5th" w lp lt 1 lc rgb "#ff1493" lw 2 pt
9 ps 1.5

http://old.nabble.com/file/p26766030/main.pdf main.pdf 
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Re: [Gnuplot-info] rotation center

[Hans-Bernhard B. <HBB...@t-...>]

Zhong Ren wrote:
> Please consider the following script that draws a sphere.  Why
> the rotation center is not at the center of the sphere, when
> the graphics is spun by the mouse?

Why should it be?  Did you really expect gnuplot to have a special rule 
like "whenever there is exactly one spherical surface among the plotted 
things, rotation will magically center around that"?

> If not, how is the center selected by Gnuplot?

Mouse rotates the entire graph box, so, kind-of obviously, it is 
centered around the center of the graph box.  So if you want rotation to 
be around a particular point, make all three axis ranges symmetric 
around it:

	set xrange [mid_x - size_x : mid_x + size_x]
	# likewise for y and z

[Gnuplot-info] rotation center

[Zhong R. <re...@uc...>]

Please consider the following script that draws a sphere.  Why
the rotation center is not at the center of the sphere, when
the graphics is spun by the mouse?  If I change to "set xrange
[ 6 :  44]", the rotation center becomes the center of the
sphere.  This makes the behavior of one of my large
applications unpredictable.  Is there a way to specify the
rotation center?  If not, how is the center selected by Gnuplot?

set terminal x11 0 size 1024,1024
set parametric
set view equal xyz
set xlabel "x"
set ylabel "y"
set zlabel "z"
set xrange [ 6 :  43]
set yrange [80 : 118]
set zrange [13 :  51]
set pm3d implicit at s
splot 10*cos(u)*cos(v)+25,10*cos(u)*sin(v)+99,10*sin(u)+33

Thanks for your help.

Zhong

Re: [Gnuplot-info] animated plot

[Thomas S. <t.s...@fz...>]

test.dat:

1 1 2
1 2 3
1 3 1

2 1 3
2 2 1
2 3 2

3 1 1
3 2 2
3 3 3

plot script:

set style data lines
splot 'test.dat'
pause -1
plot 'test.dat' using 2:3 every :::0::0 with linespoints
pause -1
plot 'test.dat' using 2:3 every :::1::1 with linespoints
pause -1
plot 'test.dat' using 2:3 every :::2::2 with linespoints


Smstry wrote:
> 
> Thanks for your answer .
> i feel that what you wrote is near to what i 'd like but it doesn't realy
> works .
> please ,could you try it with a simple example ?.
> 
> 
> Thomas Sefzick wrote:
>> 
>> if the number of data points per x-value is constant, you could
>> use the 'every' option of the 'plot' command.
>> or you could use the ternary operator:
>> plot 'datafilename' using ($1==2.76?$2):3
>> (assumed that one of your x-values is 2.76)
>> 
>> 
>> Smstry wrote:
>>> 
>>> I have a file ( 3 columns x,y,z )which allows me to make a  3D plot .
>>> i'd like to make an animated 2d plot with this file :i mean for each
>>> value
>>> of x i plot 2d graph ,and i change th evalue of x with time to make
>>> animation .
>>> any one could help me ?
>>> thanks    
>>> 
>> 
>> 
> 
> 

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Re: [Gnuplot-info] HTML image maps

[Stephen D. <sc...@sd...>]

Perfect!

Thank you very much.

Stephen

On Friday 11 December 2009 05:16:08 Thomas Sefzick wrote:
> "%s" is not implemented - but it should be implemented.
>
> i uploaded a patch to sourceforge which repairs this.
>
> scldad wrote:
> > Thank you Thomas.
> >
> > This looks very promising.
> >
> > The initial plot image is good.
> >
> > However, when I do the replot with a table set, the X coordinates
> > (date/time)
> > do not seem to follow the rules in the doco.
> >
> > I did:
> >
> > set table "/tmp/pdata"
> > set xdata time
> > set timefmt "%Y-%m-%d_%H:%M:%S"
> > set format x "%s"
> > plot "/tmp/data" using 1:2 with lines
> > unset table
> >
> > /tmp/pdata contains lines of the format:
> >
> > ""  5.489  i
> >
> > If I omit the set format x, I get lines of the format:
> >
> > "g"  5.489  i
> >
> > How do I get the date/time x values output as seconds?
> > (GPVAL_X_MIN value implies that these are the units plotted.)
> >
> > Cheers and thanks,
> > Stephen
> >
> > On Wednesday 09 December 2009 19:04:55 Thomas Sefzick wrote:
> >> after plotting a whole bunch of variables is set, see 'show variables
> >> all'.
> >> amongst these variables there are
> >> GPVAL_TERM_XMIN, GPVAL_TERM_XMAX,
> >> GPVAL_TERM_YMIN, GPVAL_TERM_YMAX
> >> which give the corners of the graph in pixels.
> >> (you need version 4.4)
> >>
> >> together with the information in
> >> GPVAL_X_MIN, GPVAL_X_MAX, ...
> >> it should be easy to translate data point coordinates into
> >> pixels.
> >>
> >> you should generate your plot, then replot with 'set table <filename>'
> >> the resulting file should contain all of your data points in graph
> >> coordinates which with the above variables you may convert into
> >> terminal screen coordinates.
> >>
> >> scldad wrote:
> >> > I have seen this question before but not any answers.
> >> >
> >> > I need to generate plots of data where the X axis is always date/time.
> >> >
> >> > These plot image files will be included in web pages via img tags.
> >> >
> >> > I also need to make the resulting web image "clickable" via an image
> >>
> >> map
> >>
> >> > so
> >> > that viewers can see the original data values.
> >> >
> >> > How can one generate the relevant HTML image maps (or some form of
> >> > text file
> >> > with identifiable coordinate pairs) with gnuplot?
> >> >
> >> > (I currently do this with grace plots by replicating the PNG plots
> >> > with the
> >> > Metadata output option and feeding the results plus the original data
> >> > file through a gawk script.)
> >> >
> >> > TIA,
> >> > Stephen Davies
> >> > --
> >>
> >> ========================================================================
> >>=
> >>
> >> >==== Stephen Davies Consulting P/L                             Voice:
> >> > 08-8177 1595
> >> > Adelaide, South Australia.                                Fax  :
> >>
> >> 08-8177
> >>
> >> > 0133
> >> > Computing & Network solutions.                            Mobile:040
> >>
> >> 304
> >>
> >> > 0583
> >> >
> >> > VoIP:sip:11...@si...
> >>
> >> ------------------------------------------------------------------------
> >>-
> >>
> >> >----- Join us December 9, 2009 for the Red Hat Virtual Experience,
> >> > a free event focused on virtualization and cloud computing.
> >> > Attend in-depth sessions from your desk. Your couch. Anywhere.
> >> > http://p.sf.net/sfu/redhat-sfdev2dev
> >> > _______________________________________________
> >> > gnuplot-info mailing list
> >> > gnu...@li...
> >> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> >
> > --
> > =========================================================================
> >==== Stephen Davies Consulting P/L                             Voice:
> > 08-8177 1595
> > Adelaide, South Australia.                                Fax  : 08-8177
> > 0133
> > Computing & Network solutions.                            Mobile:040 304
> > 0583
> >
> > -------------------------------------------------------------------------
> >----- Return on Information:
> > Google Enterprise Search pays you back
> > Get the facts.
> > http://p.sf.net/sfu/google-dev2dev
> > _______________________________________________
> > gnuplot-info mailing list
> > gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info



-- 
=============================================================================
Stephen Davies Consulting P/L                             Voice: 08-8177 1595
Adelaide, South Australia.                                Fax  : 08-8177 0133
Computing & Network solutions.                            Mobile:040 304 0583

Re: [Gnuplot-info] HTML image maps

[Thomas S. <t.s...@fz...>]

"%s" is not implemented - but it should be implemented.

i uploaded a patch to sourceforge which repairs this.


scldad wrote:
> 
> Thank you Thomas.
> 
> This looks very promising.
> 
> The initial plot image is good.
> 
> However, when I do the replot with a table set, the X coordinates
> (date/time) 
> do not seem to follow the rules in the doco.
> 
> I did:
> 
> set table "/tmp/pdata"
> set xdata time
> set timefmt "%Y-%m-%d_%H:%M:%S"
> set format x "%s"
> plot "/tmp/data" using 1:2 with lines
> unset table
> 
> /tmp/pdata contains lines of the format:
> 
> ""  5.489  i
> 
> If I omit the set format x, I get lines of the format:
> 
> "g"  5.489  i
> 
> How do I get the date/time x values output as seconds?
> (GPVAL_X_MIN value implies that these are the units plotted.)
> 
> Cheers and thanks,
> Stephen
> On Wednesday 09 December 2009 19:04:55 Thomas Sefzick wrote:
>> after plotting a whole bunch of variables is set, see 'show variables
>> all'.
>> amongst these variables there are
>> GPVAL_TERM_XMIN, GPVAL_TERM_XMAX,
>> GPVAL_TERM_YMIN, GPVAL_TERM_YMAX
>> which give the corners of the graph in pixels.
>> (you need version 4.4)
>>
>> together with the information in
>> GPVAL_X_MIN, GPVAL_X_MAX, ...
>> it should be easy to translate data point coordinates into
>> pixels.
>>
>> you should generate your plot, then replot with 'set table <filename>'
>> the resulting file should contain all of your data points in graph
>> coordinates which with the above variables you may convert into
>> terminal screen coordinates.
>>
>> scldad wrote:
>> > I have seen this question before but not any answers.
>> >
>> > I need to generate plots of data where the X axis is always date/time.
>> >
>> > These plot image files will be included in web pages via img tags.
>> >
>> > I also need to make the resulting web image "clickable" via an image
>> map
>> > so
>> > that viewers can see the original data values.
>> >
>> > How can one generate the relevant HTML image maps (or some form of text
>> > file
>> > with identifiable coordinate pairs) with gnuplot?
>> >
>> > (I currently do this with grace plots by replicating the PNG plots with
>> > the
>> > Metadata output option and feeding the results plus the original data
>> > file through a gawk script.)
>> >
>> > TIA,
>> > Stephen Davies
>> > --
>> >
>> =========================================================================
>> >==== Stephen Davies Consulting P/L                             Voice:
>> > 08-8177 1595
>> > Adelaide, South Australia.                                Fax  :
>> 08-8177
>> > 0133
>> > Computing & Network solutions.                            Mobile:040
>> 304
>> > 0583
>> >
>> > VoIP:sip:11...@si...
>> >
>> >
>> -------------------------------------------------------------------------
>> >----- Join us December 9, 2009 for the Red Hat Virtual Experience,
>> > a free event focused on virtualization and cloud computing.
>> > Attend in-depth sessions from your desk. Your couch. Anywhere.
>> > http://p.sf.net/sfu/redhat-sfdev2dev
>> > _______________________________________________
>> > gnuplot-info mailing list
>> > gnu...@li...
>> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 
> 
> -- 
> =============================================================================
> Stephen Davies Consulting P/L                             Voice: 08-8177
> 1595
> Adelaide, South Australia.                                Fax  : 08-8177
> 0133
> Computing & Network solutions.                            Mobile:040 304
> 0583
> 
> ------------------------------------------------------------------------------
> Return on Information:
> Google Enterprise Search pays you back
> Get the facts.
> http://p.sf.net/sfu/google-dev2dev
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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