On Thu, May 15, 2008 at 01:56:19PM -0500, John Hunter wrote: > On Thu, May 15, 2008 at 3:41 AM, Friedrich Hagedorn <[EMAIL PROTECTED]> wrote: > > On Thu, May 15, 2008 at 10:20:23AM +0200, Friedrich Hagedorn wrote: > >> Hello, > >> > >> I think the following is'nt right: > >> > >> In [1]: plot([1,2,3]) > >> Out[1]: [<matplotlib.lines.Line2D object at 0x8f9b0ec>] > >> > >> In [2]: ylim(-4,4) > >> Out[2]: (-4, 4) > >> > >> In [3]: axhline() > >> Out[3]: <matplotlib.lines.Line2D object at 0x8f9bc0c> [...] > For example, consider this case > > plot([1,2,3]) > ylim(-4,4) > axhline(20) > > What we want is to autoscale only if autoscale_on=True *and* the hline > is outside the current bounds. Something like: > > ymin, ymax = self.get_ylim() > if ymax<ymin: ymin, ymax = ymax, ymin > scaley = (y<ymin) or (y>ymax) > > trans = mtransforms.blended_transform_factory( > self.transAxes, self.transData) > l, = self.plot([xmin,xmax], [y,y], transform=trans, > scalex=False, scaley=scaley, **kwargs) > > I just committed this to svn in r5141 so give it a test drive and let > me know what you think.
You are right. This patch works fine for me, thanks. > There is an unrelated problem with the autoscaler which is that in the example > > plot([1,2,3]) > axhline(20) > > it sets ymax to 20 making the hline invisible. But there is no problem with axhline(20.2) Thats why the autoscale sets the outer ticks to the boundaries. > We should probably > force the ylimits to be strictly outside the data limits in some cases > when autoscaling. I think this would be better then the current (undefined) behaviour (sometimes the datalines touches the boundaries and sometimes not). For my own stuff I have used gca().set_ylim(ax.dataLim.intervaly*1.2) for a 'autoscale' replacement. By, Friedrich ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
