[changeset] - compatible behavior when printing

[Ben Abbott]

On Feb 28, 2009, at 11:00 AM, Ben Abbott wrote:

> This changeset began with the motive to implement Matlab compatible  
> behavior when printing. The preferred implementation sets gnuplot's  
> {lrtb}margins present in gnuplot 4.3+, but will also work for the  
> 4.2 series using "set origin ..." and 'set size ...".
>
> Using default properties, the command below now will now print to a  
> us-letter sized canvas (by default) with the plot area occupying the  
> area specified by the property "paperposition", which defaults to  
> [0.25 2.5 8.0 6.0].
>
> print (gcf, "-dpng", "myfile-usletter.png")
>
> To produce a 640x480 bitmap
>
> dpi = get (0, "screenpixelsperinch");
> paper_size = [640, 480] ./ dpi;
> set (gcf, "paperunits", "inches")
> set (gcf, "papertype", "<custom>")
> set (gcf, "papersize", paper_size)
> set (gcf, "paperposition", [0, 0, paper_size])
> print (gcf, "-dpng", "myfile1.png")
>
> Which implies the default resolution is equal to the display. Or the  
> resolution may be explicitly specified ...
>
> dpi = 72;
> paper_size = [640, 480] ./ dpi;
> set (gcf, "paperunits", "inches")
> set (gcf, "papertype", "<custom>")
> set (gcf, "papersize", paper_size)
> set (gcf, "paperposition", [0, 0, paper_size])
> print (gcf, "-dpng", sprintf("-r%d", dpi), "myfile2.png")
>
> I've tested tested this changeset with gnuplot 4.2.3 and 4.3, using  
> several terminals (-dpsc, -dps, -deps, -dpdf, -dpng). For on screen,  
> I've tested with x11, wxt (only on gnuplot 4.2.3), and aqua.
>
> If someone is running gnuplot 4.2.4, please try "rundemos plot" from  
> Octave's command line, and let me know if there are any problems.
>
> Ben
>
> <changeset-paper-props.patch>

I've pushed these changes. On first attempt, I missed flagging a new  
file. The new file has not been pushed as well.

Ben