[Matplotlib-users] Multiple tick labels

2010-09-10 Thread Brian Larsen 
Hello all, 

I feel like this is possible but I am having trouble figuring it out.  

I want to put extra labels on the ticks on the xaxis like in the upper panel of 
the figure
http://sprg.ssl.berkeley.edu/fast/graphics/socfig1.gif

Following 
http://matplotlib.sourceforge.net/examples/axes_grid/demo_parasite_axes2.html 
doesn't seem to be the right thing.  

It seems that I can get the tick values from 
ax= gca()
ax.get_xticks()

and from here do the calculations on what the other labels should be 
(interpolate the spacecraft position).

but then how do a create another row of labels with the values that compute?  
For some reason 
ax.get_xmajorticklabels()[0].get_text() returns ''

Thanks much, 

Brian







-- 

Brian A. Larsen
Space Science and Applications
Group ISR-1
Los Alamos National Laboratory
PO Box 1663, MS-D466
Los Alamos, NM 87545
USA

(For overnight add:
SM-30, Bikini Atoll Road)

Phone: 505-665-7691
Fax:   505-665-7395
email: balar...@lanl.gov

Correspondence /
Technical data or Software Publicly Available




--
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing
http://p.sf.net/sfu/novell-sfdev2dev
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Re: [Matplotlib-users] Multiple tick labels

2010-09-10 Thread Eric Firing 
On 09/10/2010 10:54 AM, Brian Larsen wrote:
 Hello all,

 I feel like this is possible but I am having trouble figuring it out.

 I want to put extra labels on the ticks on the xaxis like in the upper
 panel of the figure
 http://sprg.ssl.berkeley.edu/fast/graphics/socfig1.gif

 Following
 http://matplotlib.sourceforge.net/examples/axes_grid/demo_parasite_axes2.html
 doesn't seem to be the right thing.

 It seems that I can get the tick values from
 ax= gca()
 ax.get_xticks()

 and from here do the calculations on what the other labels should be
 (interpolate the spacecraft position).

 but then how do a create another row of labels with the values that
 compute? For some reason
 ax.get_xmajorticklabels()[0].get_text() returns ''

 Thanks much,

 Brian

Brian,

Tick labels can have multiple lines, so you don't need extra axes.  If 
you don't mind setting the tick locations yourself, then you can do this:

plot([1,2,3])
ax = gca()
ax.set_xticks([0,1,2])
ax.set_xticklabels(['abc\nABC', 'def\nDEF\n123', 'qrz'])
draw() # or show() if you are not in interactive mode

If you need to have the ticks auto-generated using a Locator, then you 
can write a custom Formatter that does the calculations and generates 
the multi-line labels.

Eric

--
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing
http://p.sf.net/sfu/novell-sfdev2dev
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users