tag:old.nabble.com,2006:forum-1920Nabble - Gnuplot2009-11-09T03:11:40ZGnuplot is a portable command-line driven interactive data and function plotting utility for UNIX, IBM OS/2, MS Windows, DOS, Macintosh, VMS, Atari and many other platforms. It was originally intended as to allow scientists and students to visualize mathematical functions and data. It does this job pretty well, but has grown to support many non-interactive uses, including web scripting and integration as a plotting engine for third-party applications like Octave. Gnuplot supports many types of plots in either 2D and 3D. It can draw using lines, points, boxes, contours, vector fields, surfaces, and various associated text. It also supports various specialized plot types. Gnuplot home is <a href="http://www.gnuplot.info/" target="_top" rel="nofollow">here</a>.tag:old.nabble.com,2006:post-26264622Re: Problem and solution: Patch for new "stats" command2009-11-09T03:11:40Z2009-11-09T03:11:40ZTait> <a href="http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats.html" target="_top" rel="nofollow">http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats.html</a><br><br>Forgive me for not actually looking at the code (yet), but a couple
<br>questions sprang immediately to mind.
<br><br>Mean as used here seems to be the arithmetic mean. What about the geometric
<br>mean? (Or harmonic mean, or any of the other types of averages?)
<br><br>Is the standard deviation calculated as for a population, or a sample? Is
<br>there a way for a user to request the other?
<br><br>I have always addressed these sorts of issues by using a tool that's
<br>designed for manipulating arbitrary data sets (Perl in my case, but there
<br>are others). This has the advantage of providing infinite flexibility,
<br>subroutines, complex logical conditions, modules or libraries, abstraction
<br>and re-use, and all those things that gnuplot doesn't have. The external
<br>tool then generates output that's fed to gnuplot.
<br><br>I wonder, rather than providing a restricted set of pre-defined functions,
<br>is there a way to allow the user to provide a formula or expression that
<br>will be applied across multiple rows? Then the user could calculate the
<br>mean (whatever that means to their application) or standard deviation or
<br>some other arbitrary metric on their own.
<br><br>Tait
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<br>>
<br>> Regarding binary and matrix data: If you look at the
<br>> documentation, you will notice that we dont' claim
<br>> to support either binary nor matrix data. I guess
<br>> we should have been more explicit about flagging
<br>> those keywords as errors on the command line.
<br><br>Binary data is important, I think.
<br>You should get binary support for free since you are calling
<br>df_readline(), which already knows how to deal with binary input.
<br><br>I think the glitch is not because it's binary, but because it's
<br>an array of data values. For the purpose of finding min/max/mean
<br>we don't care about that, but the program returns the values
<br>internally via column 3 rather than column 1.
<br>I think... I get confused every time I have to use a "using" statement
<br>with matrix or array input data.
<br><br><br>> How important is the matrix format overall, and in particular
<br>> outside of splot?
<br><br>Doesn't have anything to do with splot.
<br><br>Think about setting the color palette for a 2D heat map based
<br>on the stats of the data being displayed. As the program is
<br>now, you can set the cbrange manually based on prior knowledge
<br>or you can autoscale to the full min/max range. It would be
<br>very much in the spirit of your "stats" patch to facilitate
<br>setting the cbrange based on mean/stddev.
<br><br> Ethan
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<br>> On Sunday 08 November 2009, Philipp K. Janert wrote:
<br>> > We'd like to hear feedback and suggestions. Is this
<br>> > useful? Are we missing anything?
<br>>
<br><br>I think this is due to the "using (1)" - it should be ($1).
<br>When I do this with "using ($1)", the stats command
<br>reports on the invalid entry as it should.
<br><br><div class='shrinkable-quote'><br>> - I don't know how to interpret this behaviour:
<br>> gnuplot> stats '-' using (1)
<br>> input data ('e' ends) > 1
<br>> input data ('e' ends) > 2
<br>> input data ('e' ends) > NaN
<br>> input data ('e' ends) > 4
<br>> input data ('e' ends) > 5
<br>>
<br>> * FILE:
<br>> Records: 4
<br>> Invalid: 0
<br>> Blank: 0
<br>> Data Blocks: 1
<br>>
<br>> Why is the NaN not listed as either "invalid" or "blank"?
<br>> Same thing happens for '?' or Inf or junk.
<br>> I don't think this is being tracked correctly.
<br>>
<br>> NB: We exchanged Email off-list about making df_readline() more consistent
<br>> about returning DF_UNDEFINED, DF_MISSING, and so on. Totally aside from
<br>> keeping statistics, does anyone object to making
<br>> plot 'foo'
<br>> plot 'foo' using 1:2
<br>> plot 'foo' using ($1):($2)
<br>> all consistently return DF_MISSING and DF_UNDEFINED?
<br>> Right now all three behave differently.
</div><br>I completely agree. I would be great if readline
<br>was behaving consistently. But we did not feel
<br>confident to make changes to a routine that is
<br>so central.
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<br>> On Sunday 08 November 2009, Philipp K. Janert wrote:
<br>> > We'd like to hear feedback and suggestions. Is this
<br>> > useful? Are we missing anything?
<br>>
<br>> Some first thoughts:
<br>> =======================
<br>> - int_error( NO_CARET,
<br>> "Out of memory in stats: too many datapoints (%d)?", max_n );
<br>> Can this really happen? Does the session survive?
<br><br>Probably not. But then again, if you are out of memory
<br>here, there is probably little useful you can do with the
<br>session going forward. For me, the purpose of this
<br>command was to at least tell the user what was wrong,
<br>rather than dying silently.
<br><br>Regarding binary and matrix data: If you look at the
<br>documentation, you will notice that we dont' claim
<br>to support either binary nor matrix data. I guess
<br>we should have been more explicit about flagging
<br>those keywords as errors on the command line.
<br><br>That is a limitation, but it's not clear to me how much
<br>of a real limitation this is in practice. How important
<br>is the matrix format overall, and in particular outside
<br>of splot?
<br><br>(I think the "fit" command does not handle either
<br>format, either.)
<br><div class='shrinkable-quote'><br>>
<br>>
<br>> =========================
<br>> - What's the intent with binary data? Simple attempt based on image.dem
<br>> doesn't work:
<br>>
<br>> gnuplot> plot 'blutux.rgb' binary array=(128,128) dx=1 flip=y
<br>> rotation=0.5pi \ origin=(0,0) format='%uchar' using ($1+$2+$3)/3 with image
<br>> gnuplot> stats 'blutux.rgb' binary array=(128,128) format='%uchar' using
<br>> ($1+$2+$3)/3 ^ Need 0 to 2 using specs for stats command
<br>>
<br>>
<br>> ========================
<br>> - I don't know what values are being pulled from this data,
<br>> but the stats don't look right :-)
<br>>
<br>> gnuplot> stats '-' matrix
<br>> input data ('e' ends) > 1 2 3 4
<br>> input data ('e' ends) > 1 2 3 4
<br>> input data ('e' ends) > 1 2 3 4
<br>> input data ('e' ends) > 1 2 3 4
<br>> input data ('e' ends) > e
<br>> input data ('e' ends) > e
<br>>
<br>> * FILE:
<br>> Records: 16
<br>> Invalid: 0
<br>> Blank: 3
<br>> Data Blocks: 1
<br>>
<br>> * COLUMNS:
<br>> Mean: 1.5000 2.5000
<br>> Std Dev: 1.1180 1.1180
<br>> Sum x: 24.0000 40.0000
<br>> Sum x^2: 56.0000 120.0000
<br>>
<br>> Minimum: 0.0000 [ 1] 1.0000 [ 1]
<br>> Quartile: 1.0000 [ 2] 2.0000 [ 2]
<br>> Median: 2.0000 [ 3] 3.0000 [ 3]
<br>> Quartile: 3.0000 [ 4] 4.0000 [ 4]
<br>> Maximum: 3.0000 [16] 4.0000 [16]
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<br>> On Sunday 08 November 2009, Philipp K. Janert wrote:
<br>> > We'd like to hear feedback and suggestions. Is this
<br>> > useful? Are we missing anything?
<br>>
<br>> Some first thoughts:
<br><br>Thanks for checking it out!
<br><br>>
<br>> The behaviour for functions is not as obvious as for files of
<br>> data points. For example:
<br><br>I am not sure. I find this a little unfair. There is
<br>no claim that the stats command does function
<br>minimization. It finds the extrema in the data sets
<br>passed to it. And that it does correctly, I think.
<br>(Even in the example given below.)
<br><br>Let me state it again: the stats command works
<br>on data sets. Not functions (in the analytic sense).
<br>I don't think it would be reasonable to expect
<br>anything else.
<br><br>Regarding "the" min/max : you are right, the documentation
<br>could be clearer. If there are multiple points in a data set,
<br>all of which are of the same (minimal) value, then the stats
<br>command currently makes no guarantee for which of those
<br>points it will report the position in the file. It will just report
<br>the position of one of them.
<br><div class='shrinkable-quote'><br>>
<br>> gnuplot> set xrange [0:10]
<br>> gnuplot> stats '+' using 1:(sin($1))
<br>>
<br>> * FILE:
<br>> Records: 100
<br>>
<br>> * COLUMNS:
<br>> Mean: 5.0000 0.1792
<br>> Minimum: 0.0000 [ 1] -0.9994 [ 48]
<br>> Quartile: 2.5253 [ 26] -0.3837 [ 36]
<br>> Median: 5.0505 [ 51] 0.3082 [ 29]
<br>> Quartile: 7.5758 [ 76] 0.8075 [ 85]
<br>> Maximum: 10.0000 [100] 0.9997 [ 79]
<br>>
<br>> gnuplot> set samples 1000
<br>> gnuplot> stats '+' using 1:(sin($1))
<br>>
<br>> * FILE:
<br>> Records: 1000
<br>>
<br>> * COLUMNS:
<br>> Mean: 5.0000 0.1835
<br>> Minimum: 0.0000 [ 1] -1.0000 [ 472]
<br>> Quartile: 2.5025 [ 251] -0.3941 [ 983]
<br>> Median: 5.0050 [ 501] 0.3149 [ 33]
<br>> Quartile: 7.5075 [ 751] 0.8113 [ 848]
<br>> Maximum: 10.0000 [1000] 1.0000 [ 158]
<br>>
<br>> I find several things disconcerting about this output, although
<br>> I know what the underlying causes are.
<br>>
<br>> - The min/max are artifacts of the sampling.
<br>> They're not even symmetric even though sin(x) is a symmetric function
<br>> You can reduce the problem by increasing the number of samples, but I
<br>> think more drastic alternatives should be considered
<br>>
<br>> 1) The 'stats' command could refuse to operate on functions
<br>> 2) The 'stats' command could temporarily bump up the sampling rate
<br>> by 100x
<br>> 3) The 'stats' command could do a systematic search in the area of
<br>> the nominal extrema to determine more accurate values.
<br>> Even so, if the sampling is too coarse it may miss a true extremum
<br>> that lies elsewhere.
<br>>
<br>> - The "mean" of a periodic function would normally be calculated over
<br>> one period of the function rather than an arbitrary range.
<br>> Yeah, I know, I gave an explicit xrange. But still...
<br>>
<br>> - The quantities in [] are documented as "the" point at which the
<br>> min/max/whatever occurs. But there is no expectation for either data
<br>> or functions that the minimum, for example, is only acheived only at a
<br>> single point. I don't think it makes any sense to give these values
<br>> unless the data or function is monotonic. And given sampling artifacts,
<br>> it probably makes no sense to give them for function data at all.
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<br>> We'd like to hear feedback and suggestions. Is this
<br>> useful? Are we missing anything?
<br>
<br>Some first thoughts:
<br>=======================
<br>- int_error( NO_CARET,
<br> "Out of memory in stats: too many datapoints (%d)?", max_n );
<br> Can this really happen? Does the session survive?
<br><br><br>=========================
<br>- What's the intent with binary data? Simple attempt based on image.dem
<br> doesn't work:
<br><br>gnuplot> plot 'blutux.rgb' binary array=(128,128) dx=1 flip=y rotation=0.5pi \
<br> origin=(0,0) format='%uchar' using ($1+$2+$3)/3 with image
<br>gnuplot> stats 'blutux.rgb' binary array=(128,128) format='%uchar' using ($1+$2+$3)/3
<br> ^
<br> Need 0 to 2 using specs for stats command
<br><br><br>========================
<br>- I don't know what values are being pulled from this data,
<br> but the stats don't look right :-)
<br><br>gnuplot> stats '-' matrix
<br>input data ('e' ends) > 1 2 3 4
<br>input data ('e' ends) > 1 2 3 4
<br>input data ('e' ends) > 1 2 3 4
<br>input data ('e' ends) > 1 2 3 4
<br>input data ('e' ends) > e
<br>input data ('e' ends) > e
<br><br>* FILE:
<br> Records: 16
<br> Invalid: 0
<br> Blank: 3
<br> Data Blocks: 1
<br><br>* COLUMNS:
<br> Mean: 1.5000 2.5000
<br> Std Dev: 1.1180 1.1180
<br> Sum x: 24.0000 40.0000
<br> Sum x^2: 56.0000 120.0000
<br><br> Minimum: 0.0000 [ 1] 1.0000 [ 1]
<br> Quartile: 1.0000 [ 2] 2.0000 [ 2]
<br> Median: 2.0000 [ 3] 3.0000 [ 3]
<br> Quartile: 3.0000 [ 4] 4.0000 [ 4]
<br> Maximum: 3.0000 [16] 4.0000 [16]
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<br>> We'd like to hear feedback and suggestions. Is this
<br>> useful? Are we missing anything?
<br>
<br>Some first thoughts:
<br>
<br>The behaviour for functions is not as obvious as for files of
<br>data points. For example:
<br>
<br> gnuplot> set xrange [0:10]
<br> gnuplot> stats '+' using 1:(sin($1))
<br>
<br> * FILE:
<br> Records: 100
<br>
<br> * COLUMNS:
<br> Mean: 5.0000 0.1792
<br> Minimum: 0.0000 [ 1] -0.9994 [ 48]
<br> Quartile: 2.5253 [ 26] -0.3837 [ 36]
<br> Median: 5.0505 [ 51] 0.3082 [ 29]
<br> Quartile: 7.5758 [ 76] 0.8075 [ 85]
<br> Maximum: 10.0000 [100] 0.9997 [ 79]
<br>
<br> gnuplot> set samples 1000
<br> gnuplot> stats '+' using 1:(sin($1))
<br>
<br> * FILE:
<br> Records: 1000
<br>
<br> * COLUMNS:
<br> Mean: 5.0000 0.1835
<br> Minimum: 0.0000 [ 1] -1.0000 [ 472]
<br> Quartile: 2.5025 [ 251] -0.3941 [ 983]
<br> Median: 5.0050 [ 501] 0.3149 [ 33]
<br> Quartile: 7.5075 [ 751] 0.8113 [ 848]
<br> Maximum: 10.0000 [1000] 1.0000 [ 158]
<br>
<br>I find several things disconcerting about this output, although
<br>I know what the underlying causes are.
<br>
<br> - The min/max are artifacts of the sampling.
<br> They're not even symmetric even though sin(x) is a symmetric function
<br> You can reduce the problem by increasing the number of samples, but I
<br> think more drastic alternatives should be considered
<br><br> 1) The 'stats' command could refuse to operate on functions
<br> 2) The 'stats' command could temporarily bump up the sampling rate
<br> by 100x
<br> 3) The 'stats' command could do a systematic search in the area of
<br> the nominal extrema to determine more accurate values.
<br> Even so, if the sampling is too coarse it may miss a true extremum
<br> that lies elsewhere.
<br><br> - The "mean" of a periodic function would normally be calculated over
<br> one period of the function rather than an arbitrary range.
<br> Yeah, I know, I gave an explicit xrange. But still...
<br>
<br> - The quantities in [] are documented as "the" point at which the
<br> min/max/whatever occurs. But there is no expectation for either data
<br> or functions that the minimum, for example, is only acheived only at a
<br> single point. I don't think it makes any sense to give these values
<br> unless the data or function is monotonic. And given sampling artifacts,
<br> it probably makes no sense to give them for function data at all.
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<br>> We'd like to hear feedback and suggestions. Is this
<br>> useful? Are we missing anything?
<br><br>- I don't know how to interpret this behaviour:
<br>gnuplot> stats '-' using (1)
<br>input data ('e' ends) > 1
<br>input data ('e' ends) > 2
<br>input data ('e' ends) > NaN
<br>input data ('e' ends) > 4
<br>input data ('e' ends) > 5
<br><br>* FILE:
<br> Records: 4
<br> Invalid: 0
<br> Blank: 0
<br> Data Blocks: 1
<br><br>Why is the NaN not listed as either "invalid" or "blank"?
<br>Same thing happens for '?' or Inf or junk.
<br>I don't think this is being tracked correctly.
<br><br>NB: We exchanged Email off-list about making df_readline() more consistent
<br>about returning DF_UNDEFINED, DF_MISSING, and so on. Totally aside from
<br>keeping statistics, does anyone object to making
<br> plot 'foo'
<br> plot 'foo' using 1:2
<br> plot 'foo' using ($1):($2)
<br>all consistently return DF_MISSING and DF_UNDEFINED?
<br>Right now all three behave differently.
<br>
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<br><br>I have a problem using gnuplot version 4.3.2(?) on Linux-Suse: when I try to print an output on <b>terminal postscript</b> using the option <b>set pm3d interpolate</b>, the surface does not appear on output file:
<br>any suggestion?
<br><br>thanks in advance <img class='smiley' src='http://old.nabble.com/images/smiley/smiley_beam.gif' /><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26257488Problem and solution: Patch for new "stats" command2009-11-08T12:17:50Z2009-11-08T12:17:50ZPhilipp K. Janert<br>Here is a recurrent problem I often have:
<br><br>Frequently, I would like to plot some data after
<br>subtracting off the mean. Or I would like to
<br>normalize the variation by dividing with the
<br>standard deviation. Or I'd like to form a normalized
<br>histogram, by passing the number of records in
<br>the data set to "smooth frequency".
<br><br>Currently, I always have to invoke an external
<br>program to find these quantities, which is always
<br>a little inconvenient in interactive use, and pretty
<br>painful when scripting gnuplot. When not on Unix,
<br>it may be quite difficult!
<br><br>For the last few weeks, Zoltán and I have been
<br>working on a command that calculates the most
<br>important such quantities from a data file, displays
<br>them, and (optionally) assigns them to variables in
<br>the current gnuplot session.
<br><br>You can see some examples of what you can do
<br>with this command here:
<br> <a href="http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats.html" target="_top" rel="nofollow">http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats.html</a><br>and you can read the full documentation here:
<br> <a href="http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats_help.html" target="_top" rel="nofollow">http://www.phyast.pitt.edu/~zov1/gnuplot/patch/stats_help.html</a><br><br>I uploaded a patch with our changes to sourceforge.
<br><br>We'd like to hear feedback and suggestions. Is this
<br>useful? Are we missing anything?
<br><br>We'd also like to encourage everyone to build the
<br>patch and play with it - each additional user finds
<br>a new class of bugs!
<br><br>Best,
<br><br> Ph.
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<br>the following could work:
<br><br>data file:
<br>1 2 3 4 1
<br>3 4 2 1 2
<br>2 1 4 2 3
<br><br>plot script:
<br>set xrange [0:5]
<br>set yrange [0:5]
<br>plot "datafilename" using ($5==1?$1:0/0):2:($3-$1):($4-$2) with vector nohead linetype 1 linewidth 1, \
<br>"" using ($5==2?$1:0/0):2:($3-$1):($4-$2) with vector nohead linetype 1 linewidth 2, \
<br>"" using ($5==3?$1:0/0):2:($3-$1):($4-$2) with vector nohead linetype 1 linewidth 3
<br><br>you may specify a range of 'column 5'-values for a single line width:
<br>using ($5>0&&$5<2?$1:0/0):.....
<br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">herrdeh wrote:</div>
<div class="quote-message shrinkable-quote">Hello everybody,
<br><br>as I do not make any progress with compiling from CVS, I'm seeking
<br>for alternative solutions for my problem.
<br><br>Having done some work meanwhile, I found that it makes sense to
<br>provide just a rough sketch with gnuplot, as a bit of hand work in
<br>inkscape is necessary anyways to make it really look nice. So I
<br>reduced the job to the following:
<br><br>Given is a list, each line is containing two sets of x-y-coordinates.
<br>Each linie should produce one stroke in the plot, leading from
<br>coordinate set 1 to coordinate set 2.
<br><br>The luxury variant would be to have linewidth determined by an entry
<br>in column 5 - but that's not really essential.
<br>Something like
<br><br>"using ::::5 with lines linewidth variable"
<br><br>seems not to work in gnuplot 4.2.5 - the version I can't go behind…
<br><br>Any help will be appreciated.
<br><br>Greetings,
<br><br>Wolf
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</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26255137public transport plotting again2009-11-08T08:13:49Z2009-11-08T08:13:49ZherrdehHello everybody,
<br><br>as I do not make any progress with compiling from CVS, I'm seeking
<br>for alternative solutions for my problem.
<br><br>Having done some work meanwhile, I found that it makes sense to
<br>provide just a rough sketch with gnuplot, as a bit of hand work in
<br>inkscape is necessary anyways to make it really look nice. So I
<br>reduced the job to the following:
<br><br>Given is a list, each line is containing two sets of x-y-coordinates.
<br>Each linie should produce one stroke in the plot, leading from
<br>coordinate set 1 to coordinate set 2.
<br><br>The luxury variant would be to have linewidth determined by an entry
<br>in column 5 - but that's not really essential.
<br>Something like
<br><br>"using ::::5 with lines linewidth variable"
<br><br>seems not to work in gnuplot 4.2.5 - the version I can't go behind…
<br><br>Any help will be appreciated.
<br><br>Greetings,
<br><br>Wolf
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<br>Gnuplot-info mailing list
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<br><a href="https://lists.sourceforge.net/lists/listinfo/gnuplot-info" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/gnuplot-info</a><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26254308Re: User defined functions and y-axis labels2009-11-08T06:35:51Z2009-11-08T06:35:51ZHans-Bernhard Bröker-2Camilla Mont wrote:
<br>> plot [0:200] [1.0*10**6:1.5*10**12] f(x), g(x)
<br>>
<br>> However, whenever I try to plot the function f(x), I cannot see it in the
<br>> graphing window.
<br><br>The problem comes from your apparent aversion to usual notation for big
<br>numbers, i.e. from spelling out 1*10**12 when you should have just
<br>written 1e12. The problem is that 10**12, as writtten, is an operation
<br>on integers, so it'll be evaluated in integers. But 10**12 is quite
<br>certainly larger than all integers on your machine, so this doesn't do
<br>anywhere near what you think it should:
<br><br>gnuplot> print 10**12
<br>-727379968
<br>gnuplot> print 1.0*10**12
<br>-727379968.0
<br>gnuplot> print 1*10.0**12
<br>1000000000000.0
<br><br>> set format y "10^{%L} , but then the labels become just 10^8, 10^9 and so
<br>> forth. Is there a possibility that I could change this?
<br><br>See "help format specifiers" about %l.
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<br><br>first of all thank you so much for the help on my last question.
<br>I am now doing a mathematics modeling portfolio, and I need to plot a
<br>function.
<br><br>Question 1
<br>I have the following code written in a textfile
<br><br><br>set grid
<br>set ylabel "Amount"
<br>set xlabel "Hours"
<br>q=1.124
<br>b=50000
<br>a=1000000
<br>f(x)=(q**x*a)-b*((1-q**x)/(1-q))
<br>g(x)=1*10**12
<br>plot [0:200] [1.0*10**6:1.5*10**12] f(x), g(x)
<br><br>However, whenever I try to plot the function f(x), I cannot see it in the
<br>graphing window.
<br>I tried decreasing the values for constants b and a to 50 and 1000
<br>respectively, and then the graph *does *appear, but when I increase the
<br>values
<br>there is no graph. What is the obvious mistake that I'm making? The scale
<br>should be fine at least according to preliminary graphs on a graphing
<br>calculator.
<br><br><br>Question 2
<br><br>When I plot big values in gnuplot, the y-axis labels are first written as
<br>8000000, 9000000 and then the label changes to "calculator notation"
<br>with the "e". I want the labels to be for example 8.0*10^6. I tried changing
<br>the notation by using the command
<br>set format y "10^{%L} , but then the labels become just 10^8, 10^9 and so
<br>forth. Is there a possibility that I could change this?
<br><br>Thank you once again for the huge help!
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<br><br>I have noticed not-good styles in some plots in gnuplot demo (all.dem) in wxt terminal at cvs trees of
<br>2009-11-06. The multiplot graphs seem to be more oblate than those before change.
<br><br>In some demos, labels are far from axes so that shapes of graghs are oblate.
<br><br>I have uploaded the latest cvs snapshot as testing one.
<br><br>Please examine by the below
<br><br><a href="http://www.tatsuromatsuoka.com/gnuplot/Eng/winbin/" target="_top" rel="nofollow">http://www.tatsuromatsuoka.com/gnuplot/Eng/winbin/</a><br>0004 gp45-winbin_2009_1106.zip
<br>0005 gp45-winbin-wxt-diff_2009_1106.zip,
<br><br>Regards
<br><br>Tatsuro
<br><br>--- Tatsuro MATSUOKA wrote:
<br><div class='shrinkable-quote'><br>> Hello
<br>>
<br>> --- Tatsuro MATSUOKA wrote:
<br>> > I have update the latest glib and pango.
<br>> > glib 2.20.5-1 -> glib_2.22.2-1
<br>> > pango_1.24.5-2 -> pango_1.26.0-1
<br>> >
<br>> > Results went worse :-(.
<br>>
<br>> I have taken a serious mistake. I did not copy etc/fonts/fonts.conf of fontconfig to gnuplot
<br>> directry. Just coping it gave me successful results.
<br>>
<br>> The results are seen
<br>> <a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0034" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0034</a><br>>
<br>> 0033 testpngcairo_ChangeLog20091106_3.png
<br>> 0034 testpngcairo_Kanji.png
<br>>
<br>> Jananese Kanji test was also successful by your correction.
<br>> Great!!
<br>>
<br>> People can enjoy high quality png output on cairo and pango technology on windows platform.
<br>>
<br>> Thanks a lot!!
<br>>
<br>> Tatsuro
<br>>
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<br><br>--- Tatsuro MATSUOKA wrote:
<br>> I have update the latest glib and pango.
<br>> glib 2.20.5-1 -> glib_2.22.2-1
<br>> pango_1.24.5-2 -> pango_1.26.0-1
<br>>
<br>> Results went worse :-(.
<br><br>I have taken a serious mistake. I did not copy etc/fonts/fonts.conf of fontconfig to gnuplot
<br>directry. Just coping it gave me successful results.
<br><br>The results are seen
<br><a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0034" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0034</a><br><br>0033 testpngcairo_ChangeLog20091106_3.png
<br>0034 testpngcairo_Kanji.png
<br><br>Jananese Kanji test was also successful by your correction.
<br>Great!!
<br><br>People can enjoy high quality png output on cairo and pango technology on windows platform.
<br><br>Thanks a lot!!
<br><br>Tatsuro
<br><br>--------------------------------------
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<br><div class='shrinkable-quote'><br>>
<br>>
<br>> --- Allin Cottrell wrote:
<br>> >
<br>> > I notice that the font-rendering is not good in this PNG file. I
<br>> > suspect that the FreeType + fontconfig backend is not being used
<br>> > in this case. To get the benefit of the change in gp_cairo.c, the
<br>> > pango and cairo libraries must be built with support for
<br>> > fontconfig, and the DLLs for freetype, fontconfig and expat must
<br>> > all be present. DLLs that work in this respect can be found at
<br>> >
<br>> > <a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>> >
<br>> > For testing purposes, it would be easy to put a debugging print
<br>> > statement into gp-cairo.c following line 703, to see if the
<br>> > FreeType backend is in fact activated.
<br>> >
<br>> The above address is the same as I have used.
<br>>
<br>> ***************** Part of my post.
<br>> I am using cairo Libraries for MinGW from
<br>> <a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>> ****************
<br>>
<br>> However what I used the is not latest version.
<br>> (Ex. Pango version of mine 1.24.5, latest 1.26.0)
<br>>
<br>> I will update libraries and try the test again.
</div><br>I have update the latest glib and pango.
<br>glib 2.20.5-1 -> glib_2.22.2-1
<br>pango_1.24.5-2 -> pango_1.26.0-1
<br><br>Results went worse :-(.
<br><br>Please see
<br><br>Script
<br>***********
<br>set term pngcairo
<br>set title 'Title'
<br>set out 'testpngcairo_ChangeLog20091106_2.png'
<br>plot sin(x)
<br>set out
<br><br>Screen output
<br>***********
<br>gnuplot> set term pngcairo
<br>Terminal type set to 'pngcairo'
<br>Options are ' size 640, 480 '
<br>gnuplot> set title 'Title'
<br>gnuplot> set out 'testpngcairo_ChangeLog20091106_2.png'
<br>gnuplot> plot sin(x)
<br>Fontconfig error: Cannot load default config file
<br><br>(gnuplot.exe:236): Pango-WARNING **: failed to choose a font, expect ugly output.
<br>engine-type='PangoRenderFc', script='common'
<br><br>(gnuplot.exe:236): Pango-WARNING **: failed to choose a font, expect ugly output.
<br>engine-type='PangoRenderFc', script='latin'
<br>gnuplot> set out
<br>************
<br><br><a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0031" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0031</a>
<br><br>0029 testpngcairo_ChangeLog20091106.png *** previous one on win32
<br>0030 testpngcairo_ChangeLog20091106_2.png *** this time on win32
<br>0031 testpngcairo_ChangeLog20091106_cyg.png *** this time on cygwin
<br>0032 wxt_ChangeLog20091106.png **** this time for wxt term on win32
<br><br>As is seen in testpngcairo_ChangeLog20091106_2.png, plot area is full of screen and all labels seem to
<br>be out of plot area.
<br><br>This is also seen at the wxt terminal as is seen in wxt_ChangeLog20091106.png.
<br><br>Terminal type set to 'wxt'
<br>gnuplot> plot sin(x)
<br>Fontconfig error: Cannot load default config file
<br><br>(gnuplot.exe:2208): Pango-WARNING **: failed to choose a font, expect ugly output.
<br>engine-type='PangoRenderFc', script='common'
<br><br>(gnuplot.exe:2208): Pango-WARNING **: failed to choose a font, expect ugly output.
<br>engine-type='PangoRenderFc', script='latin'
<br><br><br>Perhaps the latest pango (also glib ) libraries are too new for the fontconfig-dev_2.7.3-1 (and also
<br>for freetype_2.3.9-1, libpng_1.2.39-1)
<br><br>My version list at present
<br>glib_2.22.2-1
<br>pango_1.26.0-1
<br>cairo_1.8.8-2
<br>fontconfig_2.7.3-1
<br>freetype_2.3.9-1
<br><br>Please tell me your version list that you have used this time change.
<br><br>Regards
<br><br>Tatsuro
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<br><div class='shrinkable-quote'><br>>
<br>> On Sun, 8 Nov 2009, Tatsuro MATSUOKA wrote:
<br>>
<br>> > I have tested pngcairo on win32 by Allin Cottrell at 2009-11-06.
<br>> >
<br>> > set term pngcairo
<br>> > set title 'Title'
<br>> > set out 'testpngcairo_ChangeLog20091106.png'
<br>> > plot sin(x)
<br>> > set out
<br>> >
<br>> > on win32 binaries on CVS trees at 2009-11-06 with change by by
<br>> > Allin Cottrell
<br>> >
<br>> > The result is shown at
<br>> > <a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029</a><br>> > 0029 testpngcairo_ChangeLog20091106.png, 23,804 bytes, 2009-11-08
<br>>
<br>> I notice that the font-rendering is not good in this PNG file. I
<br>> suspect that the FreeType + fontconfig backend is not being used
<br>> in this case. To get the benefit of the change in gp_cairo.c, the
<br>> pango and cairo libraries must be built with support for
<br>> fontconfig, and the DLLs for freetype, fontconfig and expat must
<br>> all be present. DLLs that work in this respect can be found at
<br>>
<br>> <a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>>
<br>> For testing purposes, it would be easy to put a debugging print
<br>> statement into gp-cairo.c following line 703, to see if the
<br>> FreeType backend is in fact activated.
<br>>
</div>The above address is the same as I have used.
<br><br>***************** Part of my post.
<br>I am using cairo Libraries for MinGW from
<br><a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>****************
<br><br>However what I used the is not latest version.
<br>(Ex. Pango version of mine 1.24.5, latest 1.26.0)
<br><br>I will update libraries and try the test again.
<br><br>Regards
<br><br>Tatsuro
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<br><div class='shrinkable-quote'><br>> I have tested pngcairo on win32 by Allin Cottrell at 2009-11-06.
<br>>
<br>> set term pngcairo
<br>> set title 'Title'
<br>> set out 'testpngcairo_ChangeLog20091106.png'
<br>> plot sin(x)
<br>> set out
<br>>
<br>> on win32 binaries on CVS trees at 2009-11-06 with change by by
<br>> Allin Cottrell
<br>>
<br>> The result is shown at
<br>> <a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029</a><br>> 0029 testpngcairo_ChangeLog20091106.png, 23,804 bytes, 2009-11-08
</div><br>I notice that the font-rendering is not good in this PNG file. I
<br>suspect that the FreeType + fontconfig backend is not being used
<br>in this case. To get the benefit of the change in gp_cairo.c, the
<br>pango and cairo libraries must be built with support for
<br>fontconfig, and the DLLs for freetype, fontconfig and expat must
<br>all be present. DLLs that work in this respect can be found at
<br><br><a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br><br>For testing purposes, it would be easy to put a debugging print
<br>statement into gp-cairo.c following line 703, to see if the
<br>FreeType backend is in fact activated.
<br><br>Allin Cottrell
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<div class='shrinkable-quote'><br>> Hello Allin and Ethan
<br>>
<br>> I have tested pngcairo on win32 by Allin Cottrell at 2009-11-06.
<br>>
<br>> set term pngcairo
<br>> set title 'Title'
<br>> set out 'testpngcairo_ChangeLog20091106.png'
<br>> plot sin(x)
<br>> set out
<br>>
<br>> on win32 binaries on CVS trees at 2009-11-06 with change by by Allin Cottrell
<br>>
<br>> The result is shown at
<br>> <a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029</a><br>> 0029 testpngcairo_ChangeLog20091106.png, 23,804 bytes, 2009-11-08
<br>>
<br>> However now I just notice that it requires in the ChangeLog
<br>> libcairo > 1.21
<br>>
<br>> What is libcairo 1.21?
</div><br>Ah. Sorry, that's the pango version not the cairo version.
<br>I will correct the ChangeLog.
<br><br> Ethan
<br><div class='shrinkable-quote'><br>> <a href="https://launchpad.net/libcairo" target="_top" rel="nofollow">https://launchpad.net/libcairo</a><br>> The latest version is Latest version is 1.9.4
<br>>
<br>> <a href="http://www.cairographics.org/" target="_top" rel="nofollow">http://www.cairographics.org/</a><br>> Latest news: 2009-10-15: cairo 1.9.4 snapshot available 2009-06-16: cairo 1.8.8 release available
<br>>
<br>> I am using cairo Libraries for MinGW from
<br>> <a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>> cairo 1.8.8
<br>>
<br>> Regards
<br>>
<br>> Tatsuro
<br>>
<br>> --------------------------------------
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<br><br>I have tested pngcairo on win32 by Allin Cottrell at 2009-11-06.
<br><br>set term pngcairo
<br>set title 'Title'
<br>set out 'testpngcairo_ChangeLog20091106.png'
<br>plot sin(x)
<br>set out
<br><br>on win32 binaries on CVS trees at 2009-11-06 with change by by Allin Cottrell
<br><br>The result is shown at
<br><a href="http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029" target="_top" rel="nofollow">http://www.geocities.co.jp/tmgpltwin/Files/Files.html#0029</a><br>0029 testpngcairo_ChangeLog20091106.png, 23,804 bytes, 2009-11-08
<br><br>However now I just notice that it requires in the ChangeLog
<br>libcairo > 1.21
<br><br>What is libcairo 1.21?
<br><br><a href="https://launchpad.net/libcairo" target="_top" rel="nofollow">https://launchpad.net/libcairo</a><br>The latest version is Latest version is 1.9.4
<br><br><a href="http://www.cairographics.org/" target="_top" rel="nofollow">http://www.cairographics.org/</a><br>Latest news: 2009-10-15: cairo 1.9.4 snapshot available 2009-06-16: cairo 1.8.8 release available
<br><br>I am using cairo Libraries for MinGW from
<br><a href="http://www.gtk.org/download-windows.html" target="_top" rel="nofollow">http://www.gtk.org/download-windows.html</a><br>cairo 1.8.8
<br><br>Regards
<br><br>Tatsuro
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<br>I recently installed gnuplot version 4.2 on my Mac (OS is 10.6.1, Snow
<br>Leopard), using MacPorts.
<br>It works, but only on Terminals different from 'aqua'. When 'aqua' is
<br>set and I want to plot something, say:
<br>gnuplot> plot sin(x)
<br>Aquaterm is called, but no window (and then no graphic) is shown... It
<br>remains there, like if it'd try to compute, but really doing
<br>nothing... If I close Aquaterm it says:
<br>AquaTerm warning: Connection to display was lost,
<br>plot commands will be discarded until a new plot is started.
<br>gnuplot>
<br><br>What's wrong?
<br><br>Thank you in advance!
<br><br>Giacomo
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<br><br>I have confirmed Benjamin's results on cvs version of gnuplot for windows (2009-11-04).
<br><br>I have tested using keyword 'failsafe' as Ethan suggested.
<br><br>Please see the below
<br><br>:::::::::::
<br><a href="http://www.geocities.jp/tmgpltwin/Files/Files.html" target="_top" rel="nofollow">http://www.geocities.jp/tmgpltwin/Files/Files.html</a><br>0028 imagetest.pdf, 73,036 bytes, 2009-11-07
<br>:::::::::::
<br><br>Plot is almost good but there one can see white a line or lines as in the first page of imagetest.pdf.
<br><br>The plots generated by
<br>set term windows
<br>set xrange [0:5]; set yrange [0:5]
<br>plot "-" matrix with image failsafe
<br>1 0 0 0 0 0
<br>0 1 0 0 0 0
<br>0 0 1 0 0 0
<br>0 0 0 1 0 0
<br>0 0 0 0 1 0
<br>0 0 0 0 0 1
<br>e
<br>e
<br><br>Interestingly place of the lines are change changing the size of plot window by mouse.
<br>See second plot on the first page.
<br><br>*
<br>BTW, for wxt term,
<br><br>set xrange [0:5]; set yrange [0:5]
<br>plot "-" matrix with image
<br>1 0 0 0 0 0
<br>0 1 0 0 0 0
<br>0 0 1 0 0 0
<br>0 0 0 1 0 0
<br>0 0 0 0 1 0
<br>0 0 0 0 0 1
<br>e
<br>e
<br><br>did not give white lines as is seen the upper plot of the second page of imagetest.pdf
<br><br>However, with a failsafe keyword,
<br><br>set xrange [0:5]; set yrange [0:5]
<br>plot "-" matrix with image failsafe
<br>1 0 0 0 0 0
<br>0 1 0 0 0 0
<br>0 0 1 0 0 0
<br>0 0 0 1 0 0
<br>0 0 0 0 1 0
<br>0 0 0 0 0 1
<br>e
<br>e
<br><br>gave thin white lines like grids as is seen the lower plot of the second page of imagetest.pdf
<br>**********
<br><br>Does while lines relate with disabling the optimised code by 'failsafe' ?
<br>
<br>Regards
<br><br>Tatsuro
<br><br>--- Ethan Merritt wrote:
<br><div class='shrinkable-quote'><br>> On Friday 06 November 2009 13:49:05 Benjamin Lindner wrote:
<br>> > Hello,
<br>> >
<br>> > This is a bug that was reported on octave's bug list.
<br>> > I am moving the topic here, since I believe there is an issue with
<br>> > gnuplot's windows terminal.
<br>>
<br>> gnuplot> help failsafe
<br>>
<br>> Some terminal drivers provide code to optimize rendering of image data
<br>> within a rectangular 2D area. However this code is known to be imperfect.
<br>> This optimised code may be disabled by using the keyword `failsafe`.
<br>> E.g.
<br>> plot 'data' with image failsafe
<br>>
<br>>
<br>> I am not at all familiar with the optimised image implementation in the
<br>> windows terminal driver. If it is so problematic that it becomes a
<br>> usability issue, then we should probably disable it and let the
<br>> higher level code default to the "failsafe" mode.
<br>>
<br>> As a work-around, Octave could add the "failsafe" keyword if it's
<br>> sending output to the windows terminal.
<br>>
<br>> Ethan
<br>>
<br>>
<br>> >
<br>> > The problem is that images plotted are not drawn if the images are
<br>> > small and the x/y ranges are shrinked.
<br>> >
<br>> > Following testcase:
<br>> >
<br>> > set term windows
<br>> > plot "-" matrix with image
<br>> > 1 2
<br>> > 3 4
<br>> > e
<br>> > e
<br>> >
<br>> > works ok, but if you add
<br>> >
<br>> > set xrange [0:1]; set yrange [0:1];
<br>> >
<br>> > then the plot window is blank.
<br>> >
<br>> > This is the same if you increase the matrix size.
<br>> > For 6x6 it shows a blank window:
<br>> >
<br>> > set term windows
<br>> > set xrange [0:5]; set yrange [0:5]
<br>> > plot "-" matrix with image
<br>> > 1 0 0 0 0 0
<br>> > 0 1 0 0 0 0
<br>> > 0 0 1 0 0 0
<br>> > 0 0 0 1 0 0
<br>> > 0 0 0 0 1 0
<br>> > 0 0 0 0 0 1
<br>> > e
<br>> > e
<br>> >
<br>> >
<br>> > For 7x7 it now works
<br>> >
<br>> > set term windows
<br>> > set xrange [0:6]; set yrange [0:6]
<br>> > plot "-" matrix with image
<br>> > 1 0 0 0 0 0 0
<br>> > 0 1 0 0 0 0 0
<br>> > 0 0 1 0 0 0 0
<br>> > 0 0 0 1 0 0 0
<br>> > 0 0 0 0 1 0 0
<br>> > 0 0 0 0 0 1 0
<br>> > 0 0 0 0 0 0 1
<br>> > e
<br>> > e
<br>> >
<br>> > An interesting artefact is when you do
<br>> >
<br>> > set term windows
<br>> > set xrange [1:6]; set yrange [1:6]
<br>> > plot "-" matrix with image
<br>> > 1 0 0 0 0 0
<br>> > 0 1 0 0 0 0
<br>> > 0 0 1 0 0 0
<br>> > 0 0 0 1 0 0
<br>> > 0 0 0 0 1 0
<br>> > 0 0 0 0 0 1
<br>> > e
<br>> > e
<br>> >
<br>> > Which shows a single yellow rectangle in the upper right corner of the graph
<br>> >
<br>> > All these work for the wxt terminal.
<br>> >
<br>> > I tested this using the 2009-07-08 CVS 4.3.0 snapshot under windows.
<br>> >
<br>> > benjamin
<br>> >
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<br>> Ethan A Merritt
<br>> Biomolecular Structure Center
<br>> University of Washington, Seattle 98195-7742
<br>>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/gnuplot-beta" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/gnuplot-beta</a><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---Dev-f1922.html" embed="fixTarget[1922]" target="_top" >Gnuplot - Dev</a></p>tag:old.nabble.com,2006:post-26239916Re: image plot not displayed with small images on windows terminal2009-11-06T14:51:26Z2009-11-06T14:51:26ZEthan MerrittOn Friday 06 November 2009 13:49:05 Benjamin Lindner wrote:
<br>> Hello,
<br>>
<br>> This is a bug that was reported on octave's bug list.
<br>> I am moving the topic here, since I believe there is an issue with
<br>> gnuplot's windows terminal.
<br><br>gnuplot> help failsafe
<br><br> Some terminal drivers provide code to optimize rendering of image data
<br> within a rectangular 2D area. However this code is known to be imperfect.
<br> This optimized code may be disabled by using the keyword `failsafe`.
<br> E.g.
<br> plot 'data' with image failsafe
<br><br><br>I am not at all familiar with the optimized image implementation in the
<br>windows terminal driver. If it is so problematic that it becomes a
<br>usability issue, then we should probably disable it and let the
<br>higher level code default to the "failsafe" mode.
<br><br>As a work-around, Octave could add the "failsafe" keyword if it's
<br>sending output to the windows terminal.
<br><br> Ethan
<br><br><div class='shrinkable-quote'><br>>
<br>> The problem is that images plotted are not drawn if the images are
<br>> small and the x/y ranges are shrinked.
<br>>
<br>> Following testcase:
<br>>
<br>> set term windows
<br>> plot "-" matrix with image
<br>> 1 2
<br>> 3 4
<br>> e
<br>> e
<br>>
<br>> works ok, but if you add
<br>>
<br>> set xrange [0:1]; set yrange [0:1];
<br>>
<br>> then the plot window is blank.
<br>>
<br>> This is the same if you increase the matrix size.
<br>> For 6x6 it shows a blank window:
<br>>
<br>> set term windows
<br>> set xrange [0:5]; set yrange [0:5]
<br>> plot "-" matrix with image
<br>> 1 0 0 0 0 0
<br>> 0 1 0 0 0 0
<br>> 0 0 1 0 0 0
<br>> 0 0 0 1 0 0
<br>> 0 0 0 0 1 0
<br>> 0 0 0 0 0 1
<br>> e
<br>> e
<br>>
<br>>
<br>> For 7x7 it now works
<br>>
<br>> set term windows
<br>> set xrange [0:6]; set yrange [0:6]
<br>> plot "-" matrix with image
<br>> 1 0 0 0 0 0 0
<br>> 0 1 0 0 0 0 0
<br>> 0 0 1 0 0 0 0
<br>> 0 0 0 1 0 0 0
<br>> 0 0 0 0 1 0 0
<br>> 0 0 0 0 0 1 0
<br>> 0 0 0 0 0 0 1
<br>> e
<br>> e
<br>>
<br>> An interesting artefact is when you do
<br>>
<br>> set term windows
<br>> set xrange [1:6]; set yrange [1:6]
<br>> plot "-" matrix with image
<br>> 1 0 0 0 0 0
<br>> 0 1 0 0 0 0
<br>> 0 0 1 0 0 0
<br>> 0 0 0 1 0 0
<br>> 0 0 0 0 1 0
<br>> 0 0 0 0 0 1
<br>> e
<br>> e
<br>>
<br>> Which shows a single yellow rectangle in the upper right corner of the graph
<br>>
<br>> All these work for the wxt terminal.
<br>>
<br>> I tested this using the 2009-07-08 CVS 4.3.0 snapshot under windows.
<br>>
<br>> benjamin
<br>>
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</div><br><br><br>--
<br>Ethan A Merritt
<br>Biomolecular Structure Center
<br>University of Washington, Seattle 98195-7742
<br><br>------------------------------------------------------------------------------
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<br>I recently installed gnuplot version 4.2 on my Mac (OS is 10.6.1, Snow Leopard), using MacPorts.
<br>It works, but only on Terminals different from 'aqua'. When 'aqua' is set and I want to plot something, say:
<br><i>gnuplot> plot sin(x)</i><br>Aquaterm is called, but no window (and then no graphic) is shown... It remains there, like if it'd try to compute, but really doing nothing... If I close Aquaterm it says:
<br><i>AquaTerm warning: Connection to display was lost,
<br>plot commands will be discarded until a new plot is started.
<br>gnuplot></i><br><br>What's wrong?
<br><br>Thank you in advance!
<br><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26239108image plot not displayed with small images on windows terminal2009-11-06T13:49:05Z2009-11-06T13:49:05ZBenjamin LindnerHello,
<br><br>This is a bug that was reported on octave's bug list.
<br>I am moving the topic here, since I believe there is an issue with
<br>gnuplot's windows terminal.
<br><br>The problem is that images plotted are not drawn if the images are
<br>small and the x/y ranges are shrinked.
<br><br>Following testcase:
<br><br>set term windows
<br>plot "-" matrix with image
<br>1 2
<br>3 4
<br>e
<br>e
<br><br>works ok, but if you add
<br><br>set xrange [0:1]; set yrange [0:1];
<br><br>then the plot window is blank.
<br><br>This is the same if you increase the matrix size.
<br>For 6x6 it shows a blank window:
<br><br>set term windows
<br>set xrange [0:5]; set yrange [0:5]
<br>plot "-" matrix with image
<br>1 0 0 0 0 0
<br>0 1 0 0 0 0
<br>0 0 1 0 0 0
<br>0 0 0 1 0 0
<br>0 0 0 0 1 0
<br>0 0 0 0 0 1
<br>e
<br>e
<br><br><br>For 7x7 it now works
<br><br>set term windows
<br>set xrange [0:6]; set yrange [0:6]
<br>plot "-" matrix with image
<br>1 0 0 0 0 0 0
<br>0 1 0 0 0 0 0
<br>0 0 1 0 0 0 0
<br>0 0 0 1 0 0 0
<br>0 0 0 0 1 0 0
<br>0 0 0 0 0 1 0
<br>0 0 0 0 0 0 1
<br>e
<br>e
<br><br>An interesting artefact is when you do
<br><br>set term windows
<br>set xrange [1:6]; set yrange [1:6]
<br>plot "-" matrix with image
<br>1 0 0 0 0 0
<br>0 1 0 0 0 0
<br>0 0 1 0 0 0
<br>0 0 0 1 0 0
<br>0 0 0 0 1 0
<br>0 0 0 0 0 1
<br>e
<br>e
<br><br>Which shows a single yellow rectangle in the upper right corner of the graph
<br><br>All these work for the wxt terminal.
<br><br>I tested this using the 2009-07-08 CVS 4.3.0 snapshot under windows.
<br><br>benjamin
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<br>gnuplot-beta mailing list
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<br><a href="https://lists.sourceforge.net/lists/listinfo/gnuplot-beta" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/gnuplot-beta</a><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---Dev-f1922.html" embed="fixTarget[1922]" target="_top" >Gnuplot - Dev</a></p>tag:old.nabble.com,2006:post-26230878Re: gnuplot on Ubuntu Linux2009-11-06T11:55:11Z2009-11-06T11:55:11ZThomas Sefzickyou will get 4.2.4
<br><br><quote author="Trillianx"><br>type in the terminal:
<br><br>sudo apt-get gnuplot
<br><br>enter the password and this will install GNUPLOT. Most likely you should get the latest one.
<br><br>Trillian
<br><br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Samster wrote:</div>
<div class="quote-message">How can I install gnuplot 4.2.6 on Ubuntu Linux 9.04? I am new to Ubuntu and gnuplot.
</div>
</div></blockquote>
</quote><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26237326Re: Getting more plots on one!2009-11-06T11:20:32Z2009-11-06T11:20:32ZHans-Bernhard Bröker-2Trillianx wrote:
<br>> I am not sure how to describe this but I would like to create plots that look
<br>> like those in the attached figure. How do you create these?
<br><br>See "help multiplot".
<br><br>> I know the basics of GNUPLOT
<br><br>Obligatory reminder: the program's name is "gnuplot". No upper-case
<br>letter anywhere.
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<br>Gnuplot-info mailing list
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<br><a href="https://lists.sourceforge.net/lists/listinfo/gnuplot-info" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/gnuplot-info</a><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26230860Re: gnuplot on Ubuntu Linux2009-11-06T11:04:20Z2009-11-06T11:04:20ZTrillianxtype in the terminal:
<br><br>sudo apt-get gnuplot
<br><br>enter the password and this will install GNUPLOT. Most likely you should get the latest one.
<br><br>Trillian
<br><br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Samster wrote:</div>
<div class="quote-message">How can I install gnuplot 4.2.6 on Ubuntu Linux 9.04? I am new to Ubuntu and gnuplot.
</div>
</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26230858Getting more plots on one!2009-11-06T11:00:56Z2009-11-06T11:00:56ZTrillianxI am not sure how to describe this but I would like to create plots that look like those in the attached figure. How do you create these? Please note that this is just on plot with many subplots.
<br><br>I know the basics of GNUPLOT but I am not sure how to put the plots together as shown in the attached figure. So please just tell me how to stack them one top of the other.
<br><br>Thank you so much !!
<br><img src="http://old.nabble.com/file/p26230858/screen-capture-1.jpg" border="0" /><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26228078Re: range vs multiple plots2009-11-06T00:12:06Z2009-11-06T00:12:06ZThomas Sefzickcould you describe how your data look like and what you are
<br>trying to achieve?
<br>are the time ranges of the two data sets overlapping or are they
<br>far apart?
<br>why do you use 'multiplot'?
<br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">dfodor wrote:</div>
<div class="quote-message">Hi!
<br><br>My problem is I think very simple but I do not find the solution. I have two series of data on the same time scale but the one starts later. I tried to set the origin in multiplot which did not work or to set the range but it is still not working. Could somebody help please? Sorry for posting this message but I do not find the solution.
<br><br>Best regards
<br><br>Daniel
</div>
</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26225166range vs multiple plots2009-11-05T16:56:59Z2009-11-05T16:56:59ZdfodorHi!
<br><br>My problem is I think very simple but I do not find the solution. I have two series of data on the same time scale but the one starts later. I tried to set the origin in multiplot which did not work or to set the range but it is still not working. Could somebody help please? Sorry for posting this message but I do not find the solution.
<br><br>Best regards
<br><br>Daniel<p>From forum: <a href="http://old.nabble.com/Gnuplot---User-f1923.html" embed="fixTarget[1923]" target="_top" >Gnuplot - User</a></p>tag:old.nabble.com,2006:post-26223471Re: gp_cairo.c patch for win322009-11-05T14:29:07Z2009-11-05T14:29:07ZAllin Cottrell<br>On Thu, 5 Nov 2009, Ethan Merritt wrote:
<br><div class='shrinkable-quote'><br>> On Thursday 05 November 2009 13:36:11 Allin Cottrell wrote:
<br>> >
<br>> > On Thu, 5 Nov 2009, Ethan Merritt wrote:
<br>> >
<br>> > > On Thursday 05 November 2009 12:21:24 Ethan Merritt wrote:
<br>> > > > #if PANGO_VERSION_MAJOR > 1 || PANGO_VERSION_MINOR >= 22
<br>> > > > context = pango_font_map_create_context(fontmap);
<br>> > > > #else
<br>> > > > context = pango_cairo_font_map_create_context(fontmap);
<br>> > > > #endif
<br>> > > >
<br>> > >
<br>> > > Sigh. That doesn't work either:
<br>> > >
<br>> > > wxterminal/gp_cairo.c: In function ‘gp_cairo_create_layout’:
<br>> > > wxterminal/gp_cairo.c:708: warning: passing argument 1 of ‘pango_cairo_font_map_create_context’ from incompatible pointer type
<br>> >
<br>> > Urgh. That function wants a pointer to PangoCairoFontMap, not to
<br>> > PangoFontMap.
<br>> >
<br>> > > We need a better handle on what versions and configurations this
<br>> > > alternate code works on.
<br>> >
<br>> > Yes, I can work on that if you like. What's the pango version on
<br>> > your system, BTW?
<br>>
<br>> The errors I reported are from a system with pango 1.18.2
<br>> libpango1.0_0-1.18.2-1mdv2008.0
<br>>
<br>> I can build successfully on a newer system with
<br>> libpango1.0_0-1.24.1-1mdv2009.1
</div><br>Thanks. I'm now trying at home where I have pango 1.20.5 on
<br>Ubuntu 8.04. I was getting exactly the same errors as you
<br>described, but I find this works OK (i.e. builds and runs alright)
<br>for the relevant lines in gp_cairo.c.
<br><br><C-snippet>
<br>#if PANGO_VERSION_MAJOR > 1 || PANGO_VERSION_MINOR >= 22
<br> context = pango_font_map_create_context(fontmap);
<br>#else
<br> context =
<br> pango_cairo_font_map_create_context((PangoCairoFontMap *) fontmap);
<br>#endif
<br> layout = pango_layout_new(context);
<br> g_object_unref(context);
<br></C-snippet>
<br><br>That is, it seems you're OK casting from PangoFontMap to
<br>PangoCairoFontMap. I'll check this with the pango people. (I
<br>didn't find a clear account of this in the pango docs.)
<br><br>Allin Cottrell
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<br><a href="https://lists.sourceforge.net/lists/listinfo/gnuplot-beta" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/gnuplot-beta</a><br><p>From forum: <a href="http://old.nabble.com/Gnuplot---Dev-f1922.html" embed="fixTarget[1922]" target="_top" >Gnuplot - Dev</a></p>tag:old.nabble.com,2006:post-26223053Re: gp_cairo.c patch for win322009-11-05T14:02:02Z2009-11-05T14:02:02ZEthan MerrittOn Thursday 05 November 2009 13:36:11 Allin Cottrell wrote:
<div class='shrinkable-quote'><br>>
<br>> On Thu, 5 Nov 2009, Ethan Merritt wrote:
<br>>
<br>> > On Thursday 05 November 2009 12:21:24 Ethan Merritt wrote:
<br>> > > #if PANGO_VERSION_MAJOR > 1 || PANGO_VERSION_MINOR >= 22
<br>> > > context = pango_font_map_create_context(fontmap);
<br>> > > #else
<br>> > > context = pango_cairo_font_map_create_context(fontmap);
<br>> > > #endif
<br>> > >
<br>> >
<br>> > Sigh. That doesn't work either:
<br>> >
<br>> > wxterminal/gp_cairo.c: In function ‘gp_cairo_create_layout’:
<br>> > wxterminal/gp_cairo.c:708: warning: passing argument 1 of ‘pango_cairo_font_map_create_context’ from incompatible pointer type
<br>>
<br>> Urgh. That function wants a pointer to PangoCairoFontMap, not to
<br>> PangoFontMap.
<br>>
<br>> > We need a better handle on what versions and configurations this
<br>> > alternate code works on.
<br>>
<br>> Yes, I can work on that if you like. What's the pango version on
<br>> your system, BTW?
</div><br>The errors I reported are from a system with pango 1.18.2
<br>libpango1.0_0-1.18.2-1mdv2008.0
<br><br>I can build successfully on a newer system with
<br>libpango1.0_0-1.24.1-1mdv2009.1
<br><br><br>--
<br>Ethan A Merritt
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