Re: "activepositionproperty" and the gnuplot backend

[Ben Abbott]

On Aug 28, 2010, at 11:30 AM, Ben Abbott wrote:

> I've prepared a changeset for the Gnuplot backend that treats the 
> "activepositionproperty" is a manner similar to Matlab.
> 
> There should be no impact on the FLTK backend.
> 
> With this changeset, the instances of plot labels being clipped or cropped 
> for printed output can now be avoided by setting the "activepositionproperty" 
> to "outerposition".
> 
> There are differences as compared with Matlab.
> 
> For Matalb, when the "activepositionproperty" is "outerposition" (the 
> default) the plotbox position is normally determined by the "position" 
> property. However, if the axes/tick labels begin to move beyond the 
> "outerposition" property, the plotbox position is adjusted to ensure the 
> axes/tick labels are fully visible.
> 
> In the changeset attached, the "if labels don't fit inside the outerposition 
> property, then adjust the position property", is not handled. Instead, 
> "outerposition" property represents the bbox of the plot box and labels. This 
> is a necessary feature when using the gnuplot backend. It is also one I 
> prefer since the Matlab approach occassionally confuses me.
> 
> The manner by which Octave behaves when the "activepositionproperty" is set 
> to "position" remains as it has been.
> 
> Another difference is that Octave's colobar sets the "activepositionproperty" 
> to "position", while Matlab's implementation does not. This means that 
> Octave's colobox's behavior has not changed.
> 
> I've tested this changeset with gnuplot 4.2.6 and 4.4.
> 
> Since several changes have been made to the backend in the last few days, 
> I'll do some more testing before committing.  In the meantime, if anyone has 
> any comments or would like to test drive this change, I've attached the 
> changeset below.
> 
> Ben
> 
> <changeset.patch>

I've pushed a slightly modified changeset.

        http://hg.savannah.gnu.org/hgweb/octave/rev/a72d53df4fa6

The "activepositionproperty" is now functional for the gnuplot backend.

Ben