Johann Cohen-Tanugi wrote:
> is basemap deferred as well? It is kinda 3D no?
I understand basemap is working reasonably well. But Jeff Whitaker
would know better than I.
> Second a color map or
> contour plot is kinda 2D either...... unless I am confusing what you
> mean by 2D : 2D in rendering or in data structure?
I mean 2D in rendering -- matplotlib is fundamentally built on top of 2D
rendering APIs, which makes doing a lot of 3D things more
computationally expensive and less flexible than a dedicated 3D plotting
package.
> Anyway, I am probably not the motivated individual to tackle this work,
> most of all because I do not know matplotlib internals, I am just a
> user, albeit with coding abilities.
Well, anyone can jump in ;) Unfortunately, I probably don't have the
time for that now. I believe John Hunter has some more fully-formed
ideas about where 3D in matplotlib should go and where the best path may
be going forward.
Cheers,
Mike
> Michael Droettboom wrote:
>> Yes, it is probably a good-sized chunk of work. In the recent
>> transforms overhaul, the 3d stuff was deferred, so it hasn't been
>> updated to use the new "way of doing things".
>>
>> Just "getting it to work as it did before" is probably less work than
>> "rethinking what 3D means in the context of matplotlib", which is a
>> fundamentally 2D plotting environment. And there was some thinking
>> along the lines of "why bother with the former, if the latter may be
>> on the horizon?..." But I think it's going to take some motivated
>> individual to step up and do either of these.
>>
>> Cheers,
>> Mike
>>
>> Johann Cohen-Tanugi wrote:
>>> is there a lot of work involved in getting it in? I can wait a bit,
>>> or even try to help out.... It is not critical as I know plenty other
>>> way to get the plot I want.... Just that I love matplotlib and scipy
>>>
>>> best,
>>> Johann
>>>
>>> Michael Droettboom wrote:
>>>> The axes3d stuff is not currently working on the SVN trunk. You
>>>> probably want to use 0.91.2 or the v0_91_maint branch in SVN instead.
>>>>
>>>> Cheers,
>>>> Mike
>>>>
>>>> Johann Cohen-Tanugi wrote:
>>>>> hello,
>>>>> thanks for answering. I actually fail with the import :
>>>>> In [1]: from matplotlib import axes3d
>>>>> ---------------------------------------------------------------------------
>>>>>
>>>>>
>>>>> ImportError Traceback (most recent
>>>>> call last)
>>>>>
>>>>> /home/cohen/bstw/<ipython console> in <module>()
>>>>>
>>>>> /usr/lib/python2.5/site-packages/matplotlib/axes3d.py in <module>()
>>>>> 14 from axes import Axes
>>>>> 15 import cbook
>>>>> ---> 16 from transforms import unit_bbox
>>>>> 17
>>>>> 18 import numpy as npy
>>>>>
>>>>> ImportError: cannot import name unit_bbox
>>>>>
>>>>> any idea?
>>>>>
>>>>>> ----------------------------------------------------------------------
>>>>>>
>>>>>>
>>>>>> Message: 1
>>>>>> Date: Sun, 27 Jan 2008 22:18:00 +0000
>>>>>> From: "Neil Crighton" <[EMAIL PROTECTED]>
>>>>>> Subject: Re: [Matplotlib-users] plotting a series of 3D points and
>>>>>> picker=True and 3D
>>>>>> To: [EMAIL PROTECTED]
>>>>>> Message-ID:
>>>>>> <[EMAIL PROTECTED]>
>>>>>> Content-Type: text/plain; charset=ISO-8859-1
>>>>>>
>>>>>> I think scatter3D does what you want:
>>>>>>
>>>>>> from matplotlib import axes3d
>>>>>> import pylab as pl
>>>>>> fig = pl.figure()
>>>>>> ax = axes3d.Axes3D(fig)
>>>>>> ax.scatter3D(data[:,0],data[:,1],data[:,2])
>>>>>> ax.set_xlabel('X value')
>>>>>> ax.set_ylabel('Y value')
>>>>>> ax.set_zlabel('Z value')
>>>>>> pl.show()
>>>>>>
>>>>>> You could also change the colour and size of each point based on
>>>>>> other
>>>>>> array values:
>>>>>>
>>>>>> col = ax.scatter3D(data[:,0], data[:,1], data[:,2], c=data[:,3],
>>>>>> cmap=pl.cm.jet, s=data[:,4])
>>>>>> cbar = fig.colorbar(col,shrink=0.9,extend='both')
>>>>>> cbar.ax.set_ylabel('axis 3 data values')
>>>>>>
>>>>>> Pretty nifty.
>>>>>>
>>>>>> Neil
>>>>>>
>>>>>>
>>>>>
>>>>> -------------------------------------------------------------------------
>>>>>
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>>>>
>>
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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