Re: [Gnuplot-info] Scaling and cropping

[Yang Z. <yan...@gm...>]

Thanks, `set term ... size SIZE` is exactly what I was looking for.

Tatsuro MATSUOKA wrote:
> Hello
> 
> 
> I cannot understand what is RIGHT.
> However the relation between plot size and canvas size seemed to be complicated for gnuplot.
> 
> I refer 'help canvas' of gnuplot 4.3 (cvs)
>  
> ************
> In earlier versions of gnuplot, some terminal types used the values from set size to control also the
> size of the output canvas; others did not. The use of 'set size' for this purpose was deprecated in
> version 4.2. In version 4.3 almost all terminals now behave as follows: 
> 
> set term <terminal_type> size <XX>, <YY> controls the size of the output file, or "canvas". Please see
> individual terminal documentation for allowed values of the size parameters.  By default, the plot
> will fill this canvas. 
> 
> set size <XX>, <YY> scales the plot itself relative to the size of the canvas.  Scale values less than
> 1 will cause the plot to not fill the entire canvas.  Scale values larger than 1 will cause only a
> portion of the plot to fit on the canvas.  Please be aware that setting scale values larger than 1 may
> cause problems on some terminal types. 
> 
> The major exception to this convention is the PostScript driver, which by default continues to act as
> it has in earlier versions. Be warned that the next version of gnuplot may change the default
> behaviour of the PostScript driver as well. 
> 
> Example: 
> 
>       set size 0.5, 0.5
>       set term png size 600, 400
>       set output "figure.png"
>       plot "data" using lines
> 
> These commands will produce an output file "figure.png" that is 600 pixels wide and 400 pixels tall.
> The plot will fill the lower left quarter of this canvas.  This is consistent with the way multiplot
> mode has always worked, however it is a change in the way the png driver worked for single plots in
> version 4.0. In earlier versions of gnuplot, some terminal types used the values from set size to
> control also the size of the output canvas; others did not. The use of 'set size' for this purpose was
> deprecated in version 4.2. In version 4.3 almost all terminals now behave as follows: 
> 
> set term <terminal_type> size <XX>, <YY> controls the size of the output file, or "canvas". Please see
> individual terminal documentation for allowed values of the size parameters.  By default, the plot
> will fill this canvas. 
> 
> set size <XX>, <YY> scales the plot itself relative to the size of the canvas.  Scale values less than
> 1 will cause the plot to not fill the entire canvas.  Scale values larger than 1 will cause only a
> portion of the plot to fit on the canvas.  Please be aware that setting scale values larger than 1 may
> cause problems on some terminal types. 
> 
> The major exception to this convention is the PostScript driver, which by default continues to act as
> it has in earlier versions. Be warned that the next version of gnuplot may change the default
> behaviour of the PostScript driver as well. 
> 
> Example: 
> 
>       set size 0.5, 0.5
>       set term png size 600, 400
>       set output "figure.png"
>       plot "data" using lines
> 
> These commands will produce an output file "figure.png" that is 600 pixels wide and 400 pixels tall.
> The plot will fill the lower left quarter of this canvas.  This is consistent with the way multiplot
> mode has always worked, however it is a change in the way the png driver worked for single plots in
> version 4.0. 
> 
> *******************************************************
> 
> Automatically resizing of of eps terminal may perhaps rely on the ability 
> automatically surrounding box abibility of the eps terminal.
> 
> For other terminal, the reult that cavas size does not change for according to 'set size' is RIGHT
> behavior.  If you want change the size of ascept ratio of the canvas, please control it by 
> 
> set term (term name) size 600, 400
> 
> 
> 
> Regards
> 
> Tatsuro
> 
> 
> 
> --- Yang Zhang <yan...@gm...> wrote:
> 
>> When I do "set size [<1 ratio]", for many terminals, there remains a 
>> space surrounding the figure because the canvas itself is not resized. 
>> I've seen this in pdf and emf; it does not happen with postscript eps. 
>> These are the only three terms I've tried.
>>
>> For pdf, I can use pdfcrop, but it won't be cropped the same for all 
>> plots, and this doesn't work for emf.  Does anybody know of a way to 
>> just have gnuplot produce the "right" output (cropping/resizing the 
>> "canvas")?
>>
>> Thanks!
>>
>> -- 
>> Yang Zhang
>> http://www.mit.edu/~y_z/
>>
>> -------------------------------------------------------------------------
>> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
>> Register now and save $200. Hurry, offer ends at 11:59 p.m., 
>> Monday, April 7! Use priority code J8TLD2. 
>> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
>> _______________________________________________
>> Gnuplot-info mailing list
>> Gnu...@li...
>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>
> 
> 
> --------------------------------------
> GANBARE! NIPPON! Win your ticket to Olympic Games 2008.
> http://pr.mail.yahoo.co.jp/ganbare-nippon/