matplotlib-users Mailing List for matplotlib

Hello John,
On Thu, Jan 20, 2005 at 02:07:26PM -0600, John Hunter wrote:
> p =3D Rectangle((1,1),3,3,fill=3DFalse)
> ax.add_patch(p)
>=20
> your rectangle is in *data coordinates* and it is where it should be
> (center at 1,1 and width=3Dheight=3D3).
I think this is wrong. The lower-left corner is at (1,1), not
the center. At least help(Rectangle) states
 | __init__(self, xy, width, height, **kwargs)
 | xy is an x,y tuple lower, left
 | =20
 | width and height are width and height of rectangle
 | =20
 | fill is a boolean indicating whether to fill the rectangle
All the best,
Jochen
--=20
http://seehuhn.de/

John Hunter wrote:
>>>>>>"Stephen" == Stephen Walton <ste...@cs...> writes:
>>>>>> 
>>>>>>
>
> Stephen> I need a function which will take an N by 3 or N by 6
> Stephen> array... and convert them to matplotlib
> Stephen> dates. 
> 
>
> from datetime import datetime
> from pylab import date2num
> x = ...your array
> dts = date2num([ datetime(y,m,d) for y,m,d in x ])
>
> 
>
This works fine, John, as do your other ideas as well.
>FYI, date2num is found in matplotlib.dates. I'll take a look at the
>matlab datenum docstring in matlab and see about including this
>functionality in the matplotlib.dates version.
> 
>
No need. The functionality is already there and I need to begin 
"thinking in Python." Using tuple unpacking on rows of an array did not 
occur to me, I admit.
Steve

>>>>> "Stephen" == Stephen Walton <ste...@cs...> writes:
 Stephen> I need a function which will take an N by 3 or N by 6
 Stephen> array, where the columns are year, month, day in the
 Stephen> first case and those three plus hours, minutes, and
 Stephen> seconds in the second case and convert them to matplotlib
 Stephen> dates. This would work the same as the MATLAB datenum()
 Stephen> function.
Hi Stephen,
How about
 from datetime import datetime
 from pylab import date2num
 x = ...your array
 dts = date2num([ datetime(y,m,d) for y,m,d in x ])
or for the Nx6 case
 dts = date2num([ datetime(y,m,d,h,min,s) for y,m,d,h,min,s in x ])
or more succinctly
 dts = date2num([ datetime(*date) for date in x ])
FYI, date2num is found in matplotlib.dates. I'll take a look at the
matlab datenum docstring in matlab and see about including this
functionality in the matplotlib.dates version.
Cheers,
JDH

I need a function which will take an N by 3 or N by 6 array, where the 
columns are year, month, day in the first case and those three plus 
hours, minutes, and seconds in the second case and convert them to 
matplotlib dates. This would work the same as the MATLAB datenum() 
function.
Thanks in advance.