Re: [Matplotlib-users] plot three varaibles using matplotlib

[<ala...@ce...>]

Hi Yadin,

I am a simple user, but I already faced this problem. The idea I used is 
to plot the data as an image, with magnitudes being converted in color 
levels.

To do that, you have to define an array (let's say 'Z', Z(x,y) with dims 
len(X) and len(Y) and fill it with tour magnitudes. Then you have a two 
dimensional array that you display as an image using :

im = pylab.Imshow(Z)

Imshow has a lot of options you can use to customize your display, and 
you can add a colorbar with :
pylab.colorbar()

I have some examples of such scripts, but commented in French, so 
perhaps not very useful for you.

See the user's guide to begin, p 38 for example.

Regards,
Alain

yadin Bocuma Rivas a écrit :
>
> I i have tree lists or array of values
> list x of 100... values
> list y of 100.. values
> list mag of 100.. values
> list x and y are coordiantes of points
> and list Mag is magnitude of something at that point
>
> how can i plot this quantities using matplotlib, any function please?
>
> my code starts as.....i need to plot the points vhat can i use?
>
> from __future__ import division
> from matplotlib.patches import Patch
> from pylab import *
>
> def func3(x,y):
>     return (1- x/2 + x**5 + y**3)*exp(-x**2-y**2)
>
>
> # make these smaller to increase the resolution
> dx, dy = 0.5, 0.5
>
> X = arange(-3.0, 3.0001, dx)
>
> Y = arange(-3.0, 3.0001, dy)
>
> Mag= X**2+Y**2
>
> ?????(X, Y, Mag)
> colorbar()
> axis([-3,3,-3,3])
> savefig('three d plot of points making a surface')
> show()
>
>
> ------------------------------------------------------------------------
>
> ¡Sé un mejor ambientalista!
> Encuentra consejos para cuidar el lugar donde vivimos en:
> http://telemundo.yahoo.com/promos/mejorambientalista.html
>
>
> ------------------------------------------------------------------------
>
> ¡Sé un mejor besador!
> Comparte todo lo que sabes sobre besos en:
> http://telemundo.yahoo.com/promos/mejorbesador.html
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> ------------------------------------------------------------------------
>
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>