matplotlib-users Mailing List for matplotlib

On Thu, Oct 6, 2011 at 2:56 PM, David Pine <dj...@gm...> wrote:

> I need help on how to remove the ticks and axes lines on a 3d plot.  I got
> rid of the tick labels using
> ax.w_xaxis.set_ticklabels(['']) but I haven't been able to figure out how
> to do the ticks themselves.
>
> Also, is there a way to remove the gray background & grid to have a free
> standing 3d plot?
>
>
>
In v1.0.1, there is no easy way to do this.  However, when v1.1.0 gets
officially released and the documentation is uploaded, I will post some
links to show how to do this.

Cheers!
Ben Root

I need help on how to remove the ticks and axes lines on a 3d plot.  I got rid of the tick labels using
ax.w_xaxis.set_ticklabels(['']) but I haven't been able to figure out how to do the ticks themselves.

Also, is there a way to remove the gray background & grid to have a free standing 3d plot?



David Pine

On 9/29/11 9:44 AM, Filipe Pires Alvarenga Fernandes wrote:
> Hi I noticed that Basemap 1.0.2 will replace the old pyshapelib with
> the pure python shapelib.py. However, that did break some of my
> scripts when I use custom shapefiles.
>
> Here is a picture from Basemap 1.0.1,
>
> http://imageshack.us/photo/my-images/69/basemap101.png/
>
> and here the same script under Basemap 1.0.2,
>
> http://imageshack.us/photo/my-images/854/basemap102.png/
>
> and here is the script:
> http://pastebin.com/WfePCFJi
>
> It probably has something to do with the way shapelib.py handle the
> lines, As soon as I have some time I'll take a better look into that,
> but I would like to ask if anyone has seen this before and/or if you
> have a suggestion/solution for it.
>
> Thanks, Filipe

Filipe:  Were you able to resolve this?  I just updated shapefile.py in 
the git repository, so you might try again on the off chance a bug was 
fixed.  If the problem still persists, please point me to a shapefile 
that triggers the problem.

-Jeff

-- 
Jeffrey S. Whitaker         Phone  : (303)497-6313
Meteorologist               FAX    : (303)497-6449
NOAA/OAR/PSD  R/PSD1        Email  : Jef...@no...
325 Broadway                Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg

On Wed, Oct 5, 2011 at 7:15 PM, Andrew C <cha...@ho...> wrote:

>  Hello List Server,
>
> I am trying to take a raster dataset, getting the center points, and the z
> value and trying to graph it in a 3D bar chart quite unsuccessfully.
>
> My data looks like this:
> XCoord = [1,2,3,4]
> YCoord = [1,2,3,4]
> ZCoord = [12,14,4,26]
>
> Those are the known locations, but there will be lots of more points when
> using actual data that forms a continuous surface over a small area.
>
> How do I create a 3D bar chart to represent the Z Value at each of those
> locations?  I saw in the help that you need to create a mesh grid, but I
> don't understand how to do that.  The help documents are vague on what the
> X,Y,Z values formats are as well.
>


The call signature of bar3d is:

bar3d(x, y, z, dx, dy, dz, color='b', kwargs**)

x, y, and z must be 1-D arrays of equivalent shapes. The values in these
arrays represent the location of a corner point of the bottom of each bar
being plotted.  This is why you see a "+ 0.25" to shift the bar over so that
the bars (should be) centered, because the bars are 0.5 wide.  The width of
the bars are given by dx, dy and the height given by dz.

For the data you have given, I would do the following:

from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
import numpy as np

fig = plt.figure()
ax = fig.gca(projection='3d')

XCoord = np.array([1,2,3,4])
YCoord = np.array([1,2,3,4])
ZCoord = np.array([12,14,4,26])

ax.bar3d(XCoord - 0.25, YCoord - 0.25, [0, 0, 0, 0],
         0.5, 0.5, ZCoord)

plt.show()


Cheers!
Ben Root

Hi all,

I have played around with the "edit curves line and axes 
parameters" button.
I have modified the label but the legend is not refreshed 
in the figure.
>>> matplotlib.__version__
'1.0.1'

Am I missing something ?

Nils

On Wed, Oct 5, 2011 at 11:50 AM, mdekauwe <mde...@gm...> wrote:
> Still haven't worked out the bold but I am sure there will be something on
> that page
>

Try

ax.axis["bottom"].label.set_text("Test")
ax.axis["bottom"].label.set_weight("bold")

IHTH,

-JJ

Hello List Server,
 
I am trying to take a raster dataset, getting the center points, and the z value and trying to graph it in a 3D bar chart quite unsuccessfully.
 
My data looks like this: 
XCoord = [1,2,3,4]
YCoord = [1,2,3,4]
ZCoord = [12,14,4,26]
 
Those are the known locations, but there will be lots of more points when using actual data that forms a continuous surface over a small area.  
 
How do I create a 3D bar chart to represent the Z Value at each of those locations?  I saw in the help that you need to create a mesh grid, but I don't understand how to do that.  The help documents are vague on what the X,Y,Z values formats are as well.