matplotlib-users Mailing List for matplotlib (Page 16)

Dear Jeremy,

I'm not sure but I think it may be the problem with ppc, cause this 
architecture was dropped for Snow Leopard as far as I remember.
So just delete "-arch ppc" and try again.

In general you may try to use this description:

http://blog.hyperjeff.net/?p=160

I've tested it and it works.

Cheers,

Jakub

On 03/09/2010 04:54 AM, Jeremy Conlin wrote:
> I am trying to compile MPL on Snow Leopard without success.  I have a
> fairly fresh system (10.6.2) with python.org 2.6.4 installed.  I have
> downloaded the MPL trunk with svn.  I had to make a small change to
> the make.osx file because there are some extra ".  However I still
> can't get MPL to compile/install; it fails when compiling zlib.  The
> change I made in the make.osx file is on line 11.  It used to be:
>
> ARCH_FLAGS="-arch i386 -arch ppc -arch x86_64"
>
> and is now:
>
> ARCH_FLAGS=-arch i386 -arch ppc -arch x86_64
>
> The error I get while compiling is copied below.  Can anyone help me
> figure out what is wrong?
>
> Thanks,
> Jeremy
>
> x zlib-1.2.3/zutil.h
> Checking for gcc...
> Building static library libz.a version 1.2.3 with gcc.
> Checking for unistd.h... No.
> Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()
> Checking for snprintf() in stdio.h... No.
>    WARNING: snprintf() not found, falling back to sprintf(). zlib
>    can build but will be open to possible buffer-overflow security
>    vulnerabilities.
> Checking for return value of sprintf()... No.
>    WARNING: apparently sprintf() does not return a value. zlib
>    can build but will be open to possible string-format security
>    vulnerabilities.
> Checking for errno.h... No.
> Checking for mmap support... No.
> gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
> -isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
> -DHAS_sprintf_void -DNO_ERRNO_H   -c -o adler32.o adler32.c
> gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
> -isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
> -DHAS_sprintf_void -DNO_ERRNO_H   -c -o compress.o compress.c
> gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
> -isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
> -DHAS_sprintf_void -DNO_ERRNO_H   -c -o crc32.o crc32.c
> In file included from crc32.c:29:
> zutil.h:21:24: error: stddef.h: No such file or directory
> zutil.h:23:22: error: string.h: No such file or directory
> zutil.h:24:22: error: stdlib.h: No such file or directory
> crc32.c:36:24: error: limits.h: No such file or directory
> In file included from crc32.c:29:
> zutil.h:21:24: error: stddef.h: No such file or directory
> zutil.h:23:22: error: string.h: No such file or directory
> zutil.h:24:22: error: stdlib.h: No such file or directory
> crc32.c:36:24: error: limits.h: No such file or directory
> In file included from crc32.c:29:
> zutil.h:21:24: error: stddef.h: No such file or directory
> zutil.h:23:22: error: string.h: No such file or directory
> zutil.h:24:22: error: stdlib.h: No such file or directory
> crc32.c:36:24: error: limits.h: No such file or directory
> gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
> -isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
> -DHAS_sprintf_void -DNO_ERRNO_H   -c -o gzio.o gzio.c
> lipo: can't figure out the architecture type of: /var/tmp//cc9xNLIP.out
> make[1]: *** [crc32.o] Error 1
> make[1]: *** Waiting for unfinished jobs....
> gzio.c:10:19: error: stdio.h: No such file or directory
>
>
> and more errors below.
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Hello all,

I submitted some code to matplotlib-users last September to perform
contouring of triangular grids.  The posts and code can be found at:

http://sourceforge.net/mailarchive/forum.php?thread_name=4AB3B95B.3090903%40noaa.gov&forum_name=matplotlib-users

Like I wrote at the time, if it is useful to enough people I'm happy
to improve the code provided it can be incorporated into mpl as I have
no interest in maintaining it as a standalone project.

Ian

On 8 March 2010 23:33, gely <ge...@us...> wrote:
>
>
>
> Christopher Barker wrote:
>>
>> gely wrote:
>>>> As I think about it, I'm going to have to write code to do this (contour
>>>> an unstructured triangular mesh) sometime soon, so please let me know if
>>>> it does exist already -- if not I'll try to remember to contribute it
>>>> when I get around to it.
>>>>
>>>> -Chris
>>>>
>>>
>>> Chris, I found this old thread. Did you ever find code to directly
>>> interpolate a triangulation?
>>
>> sorry, no, not yet.
>>
>> Do you already have the triangulation? if so, it's pretty easy to contour.
>>
>
> Thanks for the reply. Yes. I have the triangulation as a list of point
> coordinates and a list of triangles with indices to the points. Good to know
> it's not difficult. I'll have to chew on this for a bit.
>
> -Geoff
> --
> View this message in context: http://old.nabble.com/Contour-Plotting-of-Varied-Data-on-a-Shape-tp25089018p27829342.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

I am trying to compile MPL on Snow Leopard without success.  I have a
fairly fresh system (10.6.2) with python.org 2.6.4 installed.  I have
downloaded the MPL trunk with svn.  I had to make a small change to
the make.osx file because there are some extra ".  However I still
can't get MPL to compile/install; it fails when compiling zlib.  The
change I made in the make.osx file is on line 11.  It used to be:

ARCH_FLAGS="-arch i386 -arch ppc -arch x86_64"

and is now:

ARCH_FLAGS=-arch i386 -arch ppc -arch x86_64

The error I get while compiling is copied below.  Can anyone help me
figure out what is wrong?

Thanks,
Jeremy

x zlib-1.2.3/zutil.h
Checking for gcc...
Building static library libz.a version 1.2.3 with gcc.
Checking for unistd.h... No.
Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()
Checking for snprintf() in stdio.h... No.
  WARNING: snprintf() not found, falling back to sprintf(). zlib
  can build but will be open to possible buffer-overflow security
  vulnerabilities.
Checking for return value of sprintf()... No.
  WARNING: apparently sprintf() does not return a value. zlib
  can build but will be open to possible string-format security
  vulnerabilities.
Checking for errno.h... No.
Checking for mmap support... No.
gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
-isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
-DHAS_sprintf_void -DNO_ERRNO_H   -c -o adler32.o adler32.c
gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
-isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
-DHAS_sprintf_void -DNO_ERRNO_H   -c -o compress.o compress.c
gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
-isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
-DHAS_sprintf_void -DNO_ERRNO_H   -c -o crc32.o crc32.c
In file included from crc32.c:29:
zutil.h:21:24: error: stddef.h: No such file or directory
zutil.h:23:22: error: string.h: No such file or directory
zutil.h:24:22: error: stdlib.h: No such file or directory
crc32.c:36:24: error: limits.h: No such file or directory
In file included from crc32.c:29:
zutil.h:21:24: error: stddef.h: No such file or directory
zutil.h:23:22: error: string.h: No such file or directory
zutil.h:24:22: error: stdlib.h: No such file or directory
crc32.c:36:24: error: limits.h: No such file or directory
In file included from crc32.c:29:
zutil.h:21:24: error: stddef.h: No such file or directory
zutil.h:23:22: error: string.h: No such file or directory
zutil.h:24:22: error: stdlib.h: No such file or directory
crc32.c:36:24: error: limits.h: No such file or directory
gcc -arch i386 -arch ppc -arch x86_64 -I/include -I/include/freetype2
-isysroot /Developer/SDKs/MacOSX10.6u.sdk -DNO_snprintf
-DHAS_sprintf_void -DNO_ERRNO_H   -c -o gzio.o gzio.c
lipo: can't figure out the architecture type of: /var/tmp//cc9xNLIP.out
make[1]: *** [crc32.o] Error 1
make[1]: *** Waiting for unfinished jobs....
gzio.c:10:19: error: stdio.h: No such file or directory


and more errors below.

All,

I'm using Aptana (Eclipse) and pydev on a macbook pro. I'm trying to work with the following:

http://matplotlib.sourceforge.net/examples/user_interfaces/fourier_demo_wx.html

Now, this is a fairly complicated and interconnected piece of coding. When I am trying to learn something, I like to break it down into smaller chunks and test, which is much better than trying to type in the whole program (yes, I know I can copy and paste, but working a piece at a time is the best way for me to learn).

So, can anyone recommend how to test the Param class by itself, then the SliderGroup class, etc, then put all the pieces together?

Suggestions at how others work this idea would be very helpful.

David.

Christopher Barker wrote:
> 
> gely wrote:
>>> As I think about it, I'm going to have to write code to do this (contour 
>>> an unstructured triangular mesh) sometime soon, so please let me know if 
>>> it does exist already -- if not I'll try to remember to contribute it 
>>> when I get around to it.
>>>
>>> -Chris
>>>
>> 
>> Chris, I found this old thread. Did you ever find code to directly
>> interpolate a triangulation?
> 
> sorry, no, not yet.
> 
> Do you already have the triangulation? if so, it's pretty easy to contour.
> 

Thanks for the reply. Yes. I have the triangulation as a list of point
coordinates and a list of triangles with indices to the points. Good to know
it's not difficult. I'll have to chew on this for a bit.

-Geoff
-- 
View this message in context: http://old.nabble.com/Contour-Plotting-of-Varied-Data-on-a-Shape-tp25089018p27829342.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

gely wrote:
>> As I think about it, I'm going to have to write code to do this (contour 
>> an unstructured triangular mesh) sometime soon, so please let me know if 
>> it does exist already -- if not I'll try to remember to contribute it 
>> when I get around to it.
>>
>> -Chris
>>
> 
> Chris, I found this old thread. Did you ever find code to directly
> interpolate a triangulation?

sorry, no, not yet.

Do you already have the triangulation? if so, it's pretty easy to contour.

-Chris


-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chr...@no...

antonv wrote:
> Hi Jeff,
>
> Here is the whole script: 
> http://old.nabble.com/file/p27826457/_test_shiftgrid.py _test_shiftgrid.py 
> And here are the grib data files:
> http://socalscubainfo.com/downloads/GRIB2_files.zip
>
> Also, if there is not too much to ask, is there a sample anywhere that shows
> how to use shiftgrid for a mercator projection? If you look at the script, I
> was initially trying to make the images using the mercator projection (there
> is a commented basemap function there) but it would display just the data
> starting from the origin. I was wondering how would I be able to display
> let's say the whole globe but shift the grid 180 so that great britain would
> be in the center of the map rather than being cut at the edge.
>
> Thanks,
> Anton 
>   

Anton:  You weren't updating the lons and lats to be consistent with the 
shifted grid.  I changed the lines

        #z, lons[i] = shiftgrid(180.0, z, lons[i], start=False, 
cyclic=360.0)
        #zq, lons_a[i] = shiftgrid(180.0, zq, lons_a[i], start=False, 
cyclic=360.0)

in your script to

        lons1 = lons[0,:]
        z, lonsnew = shiftgrid(180.0, z, lons1, start=False)
        zq, lonsnew = shiftgrid(180.0, zq, lons1, start=False)
        lons, lonsnew = shiftgrid(180.0, lons, lons1, start=False)
        lats, lonsnew = shiftgrid(180.0, lats, lons1, start=False)

and it works fine.

-Jeff
>
>
>
> Jeff Whitaker wrote:
>   
>> antonv wrote:
>>     
>>> Hi Jeff,
>>>
>>> Thanks for the quick reply! I've updated to the latest shiftgrid and now
>>> I
>>> get the chart :D
>>> I still have a small issue as there is a half degree sliver missing from
>>> the
>>> mapping at the greenwich meridian. Any idea how to solve that issue? 
>>>
>>> Here is an image showing that (above england):
>>> http://old.nabble.com/file/p27824785/Global-HTSGW_DIRPW-0.png 
>>>
>>> Thanks,
>>> Anton
>>>   
>>>       
>> Anton:  Looks like the values at the Greenwich meridian got messed up 
>> somehow.  Can you post your script somewhere so I can try it out?
>>
>> -Jeff
>>     
>>> Jeff Whitaker wrote:
>>>   
>>>       
>>>> antonv wrote:
>>>>     
>>>>         
>>>>> Hi all,
>>>>>
>>>>> I am getting a 'cyclic point not included' error using shiftgrid on a
>>>>> grib
>>>>> file from NOAA. I've checked and it seems that the file has the lons
>>>>> from
>>>>> 0
>>>>> to 359.5 every .5 degree but I get that error whenever I try to run
>>>>> this. 
>>>>>
>>>>> What I need to achieve is to shift the grid from 0 / 360 to -180 / 180
>>>>> so
>>>>> that I can create a map over Great Britain. I am using a Cassini
>>>>> projection.
>>>>>   
>>>>>       
>>>>>           
>>>> Anton:  You can add the wraparound, or cyclic point using the addcyclic 
>>>> function.  Or, you can update to the latest svn version of basemap which 
>>>> does not have this restriction.
>>>>
>>>>
>>>> -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
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Download Intel® Parallel Studio Eval
>>>> Try the new software tools for yourself. Speed compiling, find bugs
>>>> proactively, and fine-tune applications for parallel performance.
>>>> See why Intel Parallel Studio got high marks during beta.
>>>> http://p.sf.net/sfu/intel-sw-dev
>>>> _______________________________________________
>>>> Matplotlib-users mailing list
>>>> Mat...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>>
>>>>
>>>>     
>>>>         
>>>   
>>>       
>> -- 
>> 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
>>
>>
>> ------------------------------------------------------------------------------
>> Download Intel® Parallel Studio Eval
>> Try the new software tools for yourself. Speed compiling, find bugs
>> proactively, and fine-tune applications for parallel performance.
>> See why Intel Parallel Studio got high marks during beta.
>> http://p.sf.net/sfu/intel-sw-dev
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>>     
>
>   


-- 
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 Fri, 3/5/10, David Goldsmith <d_l...@ya...> wrote:

> --- On Fri, 3/5/10, Friedrich Romstedt <fri...@gm...>
> wrote:
> 
> > NB: You lose at most 3 pixels at the border of your
> image
> > when drawing
> > it the method you proposed, because the int floor'ing
> will
> > cause that.
> 
> if you can show me how to avoid
> it, I'd be much appreciative).

Friedrich: thanks for all your help over on the NumPy list.

For some reason I don't seem to be getting emails from this list, so if anyone replied to the query above, I didn't get it; perhaps you could reply off list?  Thanks!

DG


      

Hi there,
I think I made a mistake with putting in a tuple in my first email, but here
is the error output from the contourf that I call within a script. I use
this script before with a square grid and there is no problem. Anyway, after
your email, I played with the script again and I think I have a problem with
reshaping the 'z' data. For some reason, the 'z' data is not shaped the same
as the meshgrid. I will try and sort it out..

Many thanks for all your help!
Shrividya

TypeError                                 Traceback (most recent call last)

/media/ANAMIKA/crashing out Raman/script_7-03-10_co1_G-mode_spatial_map.py
in <module>()
     31
     32 ## This part plots the contour plot and configures all the visual
aspects.

---> 33 pylab.contourf(map_XX, map_YY, d)
     34 pylab.colorbar()
     35 pylab.xlim(min(map_x), max(map_x))

/usr/lib/pymodules/python2.6/matplotlib/pyplot.pyc in contourf(*args,
**kwargs)
   1874         ax.hold(hold)
   1875     try:
-> 1876         ret = ax.contourf(*args, **kwargs)
   1877         draw_if_interactive()
   1878     finally:

/usr/lib/pymodules/python2.6/matplotlib/axes.pyc in contourf(self, *args,
**kwargs)
   6816         if not self._hold: self.cla()
   6817         kwargs['filled'] = True
-> 6818         return mcontour.ContourSet(self, *args, **kwargs)
   6819     contourf.__doc__ = mcontour.ContourSet.contour_doc
   6820

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in __init__(self, ax,
*args, **kwargs)
    572             raise ValueError('Either colors or cmap must be None')
    573         if self.origin == 'image': self.origin =
mpl.rcParams['image.origin']
--> 574         x, y, z = self._contour_args(*args)        # also sets
self.levels,
    575                                                    #  self.layers

    576         if self.colors is not None:

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in _contour_args(self,
*args)
    761             x, y = self._initialize_x_y(z)
    762         elif Nargs <=4:
--> 763             x,y,z = self._check_xyz(args[:3])
    764         else:
    765             raise TypeError("Too many arguments to %s; see help(%s)"
% (fn,fn))

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in _check_xyz(self,
args)
    742             return x,y,z
    743         if x.ndim != 1 or y.ndim != 1:
--> 744             raise TypeError("Inputs x and y must be 1D or 2D.")
    745         nx, = x.shape
    746         ny, = y.shape

TypeError: Inputs x and y must be 1D or 2D.
WARNING: Failure executing file: <script_7-03-10_co1_G-mode_spatial_map.py>

Christopher Barker wrote:
> 
> Erik Schweller wrote:
>> My overall goal is to generate contour plots for a wide range of input
>> data.  The data points are not regularly spaced and do not align to
>> any grid.  The data points represent measurements taken from a model
>> that can take on a variety of shapes.  To make matters more difficult,
>> I'd prefer not to interpolate around corners of the model.
> 
> It strikes me that when you are working with unstructured data like 
> this, it may be better to keep it unstrucured -- do the delanauy 
> triangulation and directly contour from that. It's actually prety easy 
> to contour a triangular mesh.
> 
> Unfortunately, I haven't see code to do it in scipy or MPL. Am I wrong? 
> Is there something there. If not, there really should be it seems a bit 
> silly to shoehorn your data to a rectangular grid just to contour it.
> 
> I suppose NN interpolation is essentially doing this already, but it 
> introduces issues with a boundary that doesnt' line up to a rectangular 
> grid.
> 
> As I think about it, I'm going to have to write code to do this (contour 
> an unstructured triangular mesh) sometime soon, so please let me know if 
> it does exist already -- if not I'll try to remember to contribute it 
> when I get around to it.
> 
> -Chris
> 

Chris, I found this old thread. Did you ever find code to directly
interpolate a triangulation? I need to do the same thing.

Thanks,
Geoff

--
Geoffrey Ely
ge...@us...
http://earth.usc.edu/~gely/
Department of Earth Sciences
University of Southern California
Los Angeles, CA 90089-0740

-- 
View this message in context: http://old.nabble.com/Contour-Plotting-of-Varied-Data-on-a-Shape-tp25089018p27826931.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

Hello again,
I've got a question about axis labels, specifically y axis labels for
multiple lines.  What I'd ideally like to do is take something like the
legends shown in the attached picture, rotate them 90 degrees counter
clockwise, then stick them to the left of the Y axes to use it as a label
there.  I don't think there is any way to rotate the legend, but is there
anything I could do to get a similar effect?  Basically I'd like the legend
out of the plot area and into the y axis title, but it needs to show which
line is which.  Having the sample line and marker in the title would be
perfect, but I guess just having the words in the corresponding colour would
work too.

Thanks a lot!
Alex
http://old.nabble.com/file/p27826934/test.png 
-- 
View this message in context: http://old.nabble.com/Making-an-Axis-Label-like-a-legend-tp27826934p27826934.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

Hi Jeff,

Here is the whole script: 
http://old.nabble.com/file/p27826457/_test_shiftgrid.py _test_shiftgrid.py 
And here are the grib data files:
http://socalscubainfo.com/downloads/GRIB2_files.zip

Also, if there is not too much to ask, is there a sample anywhere that shows
how to use shiftgrid for a mercator projection? If you look at the script, I
was initially trying to make the images using the mercator projection (there
is a commented basemap function there) but it would display just the data
starting from the origin. I was wondering how would I be able to display
let's say the whole globe but shift the grid 180 so that great britain would
be in the center of the map rather than being cut at the edge.

Thanks,
Anton 




Jeff Whitaker wrote:
> 
> antonv wrote:
>> Hi Jeff,
>>
>> Thanks for the quick reply! I've updated to the latest shiftgrid and now
>> I
>> get the chart :D
>> I still have a small issue as there is a half degree sliver missing from
>> the
>> mapping at the greenwich meridian. Any idea how to solve that issue? 
>>
>> Here is an image showing that (above england):
>> http://old.nabble.com/file/p27824785/Global-HTSGW_DIRPW-0.png 
>>
>> Thanks,
>> Anton
>>   
> 
> Anton:  Looks like the values at the Greenwich meridian got messed up 
> somehow.  Can you post your script somewhere so I can try it out?
> 
> -Jeff
>>
>> Jeff Whitaker wrote:
>>   
>>> antonv wrote:
>>>     
>>>> Hi all,
>>>>
>>>> I am getting a 'cyclic point not included' error using shiftgrid on a
>>>> grib
>>>> file from NOAA. I've checked and it seems that the file has the lons
>>>> from
>>>> 0
>>>> to 359.5 every .5 degree but I get that error whenever I try to run
>>>> this. 
>>>>
>>>> What I need to achieve is to shift the grid from 0 / 360 to -180 / 180
>>>> so
>>>> that I can create a map over Great Britain. I am using a Cassini
>>>> projection.
>>>>   
>>>>       
>>> Anton:  You can add the wraparound, or cyclic point using the addcyclic 
>>> function.  Or, you can update to the latest svn version of basemap which 
>>> does not have this restriction.
>>>
>>>
>>> -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
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Download Intel® Parallel Studio Eval
>>> Try the new software tools for yourself. Speed compiling, find bugs
>>> proactively, and fine-tune applications for parallel performance.
>>> See why Intel Parallel Studio got high marks during beta.
>>> http://p.sf.net/sfu/intel-sw-dev
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Mat...@li...
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>
>>>
>>>     
>>
>>   
> 
> 
> -- 
> 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
> 
> 
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
> 

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antonv wrote:
> Hi Jeff,
>
> Thanks for the quick reply! I've updated to the latest shiftgrid and now I
> get the chart :D
> I still have a small issue as there is a half degree sliver missing from the
> mapping at the greenwich meridian. Any idea how to solve that issue? 
>
> Here is an image showing that (above england):
> http://old.nabble.com/file/p27824785/Global-HTSGW_DIRPW-0.png 
>
> Thanks,
> Anton
>   

Anton:  Looks like the values at the Greenwich meridian got messed up 
somehow.  Can you post your script somewhere so I can try it out?

-Jeff
>
> Jeff Whitaker wrote:
>   
>> antonv wrote:
>>     
>>> Hi all,
>>>
>>> I am getting a 'cyclic point not included' error using shiftgrid on a
>>> grib
>>> file from NOAA. I've checked and it seems that the file has the lons from
>>> 0
>>> to 359.5 every .5 degree but I get that error whenever I try to run this. 
>>>
>>> What I need to achieve is to shift the grid from 0 / 360 to -180 / 180 so
>>> that I can create a map over Great Britain. I am using a Cassini
>>> projection.
>>>   
>>>       
>> Anton:  You can add the wraparound, or cyclic point using the addcyclic 
>> function.  Or, you can update to the latest svn version of basemap which 
>> does not have this restriction.
>>
>>
>> -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
>>
>>
>> ------------------------------------------------------------------------------
>> Download Intel® Parallel Studio Eval
>> Try the new software tools for yourself. Speed compiling, find bugs
>> proactively, and fine-tune applications for parallel performance.
>> See why Intel Parallel Studio got high marks during beta.
>> http://p.sf.net/sfu/intel-sw-dev
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>>     
>
>   


-- 
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

Hi Jeff,

Thanks for the quick reply! I've updated to the latest shiftgrid and now I
get the chart :D
I still have a small issue as there is a half degree sliver missing from the
mapping at the greenwich meridian. Any idea how to solve that issue? 

Here is an image showing that (above england):
http://old.nabble.com/file/p27824785/Global-HTSGW_DIRPW-0.png 

Thanks,
Anton


Jeff Whitaker wrote:
> 
> antonv wrote:
>> Hi all,
>>
>> I am getting a 'cyclic point not included' error using shiftgrid on a
>> grib
>> file from NOAA. I've checked and it seems that the file has the lons from
>> 0
>> to 359.5 every .5 degree but I get that error whenever I try to run this. 
>>
>> What I need to achieve is to shift the grid from 0 / 360 to -180 / 180 so
>> that I can create a map over Great Britain. I am using a Cassini
>> projection.
>>   
> 
> Anton:  You can add the wraparound, or cyclic point using the addcyclic 
> function.  Or, you can update to the latest svn version of basemap which 
> does not have this restriction.
> 
> 
> -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
> 
> 
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
> 

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antonv wrote:
> Hi all,
>
> I am getting a 'cyclic point not included' error using shiftgrid on a grib
> file from NOAA. I've checked and it seems that the file has the lons from 0
> to 359.5 every .5 degree but I get that error whenever I try to run this. 
>
> What I need to achieve is to shift the grid from 0 / 360 to -180 / 180 so
> that I can create a map over Great Britain. I am using a Cassini projection.
>   

Anton:  You can add the wraparound, or cyclic point using the addcyclic 
function.  Or, you can update to the latest svn version of basemap which 
does not have this restriction.


-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

Hi all,

I am getting a 'cyclic point not included' error using shiftgrid on a grib
file from NOAA. I've checked and it seems that the file has the lons from 0
to 359.5 every .5 degree but I get that error whenever I try to run this. 

What I need to achieve is to shift the grid from 0 / 360 to -180 / 180 so
that I can create a map over Great Britain. I am using a Cassini projection.

Thanks,
Anton
-- 
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Hi there,
I know this has been discussed in the past, but I was looking through some
of the history and I'm not sure what the exact situation is.  I think
multiple y axes on the same side of the graph is unsupported officially, but
can be hacked together somehow, is that right?  Is there an example of such
a hacked together method somewhere that I could look at?

There may be a simpler way to do what I'm trying to do...  I'm not trying to
make several different axes, I'm trying to have a logarithmic axis on the
left, but have three different scales (ie 1, 10, 100 on one, 10, 100, 1000
on another, 100, 1000, 10000 on the final one).  Is there a way to manually
label the ticks on the axis "1     10      1000" and so on?  I think that
might do in a pinch, then I could just divide the plotted values by the
correct scaling factor.  Do you guys think that would be the way to go?  And
if that is possible, is it possible to have the tick labels be different
colours for the different numbers so it shows which scale is for which line
on the graph?  I guess I'm not hopeful for that...  Instead could I put in a
bit at the bottom of the graph to highlight which markers go to which axis? 
Something like this (for x, o and * data markers on the chart):

|  |  |
|  |  |
|  |  |_*
|  |_o
|_x

Thanks a lot, sorry if this question is kind of hard to follow...  Please
let me know if more clarification is needed!

Alex
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Shrividya Ravi wrote:
> Hi all,
> I have been using contourf quite happily with a square number of grid 
> points. e.g. a 20 by 20 grid. I recently decided to do a contourf plot 
> of a 20 by 15 grid (300 points) and I get errors. Unfortunately, I am 
> plotting experimental data so I cannot really tailor the grid size.  
> Here is the error message ipython generates:
> 
> *pylab.contourf((map_XX,map_YY,y))

It looks like the problem is that you have an extra set of parentheses, 
so that you are giving contourf a single argument--a tuple--instead of 
the three arguments that you intend.  Contour and contourf have no 
problem with rectangular grids.

Eric


> *
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call last)
> 
> /media/ANAMIKA/crashing out 
> Raman/script_7-03-10_co1_G-mode_spatial_map.py in <module>()
> ----> 1
>       2
>       3
>       4
>       5
> 
> /usr/lib/pymodules/python2.6/matplotlib/pyplot.pyc in contourf(*args, 
> **kwargs)
>    1874         ax.hold(hold)
>    1875     try:
> -> 1876         ret = ax.contourf(*args, **kwargs)
>    1877         draw_if_interactive()
>    1878     finally:
> 
> /usr/lib/pymodules/python2.6/matplotlib/axes.pyc in contourf(self, 
> *args, **kwargs)
>    6816         if not self._hold: self.cla()
>    6817         kwargs['filled'] = True
> -> 6818         return mcontour.ContourSet(self, *args, **kwargs)
>    6819     contourf.__doc__ = mcontour.ContourSet.contour_doc
>    6820
> 
> /usr/lib/pymodules/python2.6/matplotlib/contour.pyc in __init__(self, 
> ax, *args, **kwargs)
>     572             raise ValueError('Either colors or cmap must be None')
>     573         if self.origin == 'image': self.origin = 
> mpl.rcParams['image.origin']
> --> 574         x, y, z = self._contour_args(*args)        # also sets 
> self.levels,
>     575                                                    #  self.layers
> 
>     576         if self.colors is not None:
> 
> /usr/lib/pymodules/python2.6/matplotlib/contour.pyc in 
> _contour_args(self, *args)
>     759         if Nargs <= 2:
>     760             z = ma.asarray(args[0], dtype=np.float64)
> --> 761             x, y = self._initialize_x_y(z)
>     762         elif Nargs <=4:
>     763             x,y,z = self._check_xyz(args[:3])
> 
> /usr/lib/pymodules/python2.6/matplotlib/contour.pyc in 
> _initialize_x_y(self, z)
>     696         '''
>     697         if z.ndim != 2:
> --> 698             raise TypeError("Input must be a 2D array.")
>     699         else:
>     700             Ny, Nx = z.shape
> 
> TypeError: Input must be a 2D array.
> 
> If anyone has a solution, please do let me know!
> Many thanks!
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Hi all,
I have been using contourf quite happily with a square number of grid
points. e.g. a 20 by 20 grid. I recently decided to do a contourf plot of a
20 by 15 grid (300 points) and I get errors. Unfortunately, I am plotting
experimental data so I cannot really tailor the grid size.  Here is the
error message ipython generates:

*pylab.contourf((map_XX,map_YY,y))
*
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)

/media/ANAMIKA/crashing out Raman/script_7-03-10_co1_G-mode_spatial_map.py
in <module>()
----> 1
      2
      3
      4
      5

/usr/lib/pymodules/python2.6/matplotlib/pyplot.pyc in contourf(*args,
**kwargs)
   1874         ax.hold(hold)
   1875     try:
-> 1876         ret = ax.contourf(*args, **kwargs)
   1877         draw_if_interactive()
   1878     finally:

/usr/lib/pymodules/python2.6/matplotlib/axes.pyc in contourf(self, *args,
**kwargs)
   6816         if not self._hold: self.cla()
   6817         kwargs['filled'] = True
-> 6818         return mcontour.ContourSet(self, *args, **kwargs)
   6819     contourf.__doc__ = mcontour.ContourSet.contour_doc
   6820

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in __init__(self, ax,
*args, **kwargs)
    572             raise ValueError('Either colors or cmap must be None')
    573         if self.origin == 'image': self.origin =
mpl.rcParams['image.origin']
--> 574         x, y, z = self._contour_args(*args)        # also sets
self.levels,
    575                                                    #  self.layers

    576         if self.colors is not None:

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in _contour_args(self,
*args)
    759         if Nargs <= 2:
    760             z = ma.asarray(args[0], dtype=np.float64)
--> 761             x, y = self._initialize_x_y(z)
    762         elif Nargs <=4:
    763             x,y,z = self._check_xyz(args[:3])

/usr/lib/pymodules/python2.6/matplotlib/contour.pyc in _initialize_x_y(self,
z)
    696         '''
    697         if z.ndim != 2:
--> 698             raise TypeError("Input must be a 2D array.")
    699         else:
    700             Ny, Nx = z.shape

TypeError: Input must be a 2D array.

If anyone has a solution, please do let me know!
Many thanks!

hello,

I am working in Python with TkAgg.  I have several plots that I would 
like to display on a single figure.  The problem is, when I set the 
figure size to 12in wide, 6in high (which is perfect for my laptop) the 
plots get scrunched up.  If I resize the window in which they're 
displayed then the plots scrunch up even further.  So it appears to me 
that the figure size is tied to the window size.

I would like to set the size of the initial window in which the plots 
appear and then fix the size of the canvas? frame? figure? (not sure 
what I need to fix).  I have created a scrollbar on the window to permit 
scrolling up and down.

I have attached the Navigation Toolbar to the bottom of the window, 
which is where I would like it to stay.  So, the plots should scroll up 
and down with the toolbar fixed.

My small sample program is attached.

I am using Tk (as opposed to another GUI) as I am generating these plots 
from data in SimPy and am using SimGUI to control the model execution 
and plotting.

I would greatly appreciate any help!
Regards,
Bonnie Douglas

David Goldsmith:
> Ah, ok, not right now (perhaps later): for the purpose of adding your code to the numpy bug ticket, I think it's best if I use something a little more ubiquitous. ;-)  But it looks useful, so I'll probably grab it and try it out myself; is it pure python, i.e., should I be able to just put it in a folder containing an init file in site-packages and then it should "just work"?

Yeah, simply have a look at diagram.py

And yes, it should work out-of-the-box.  The init file should be
already included.  Simply put it in a folder.  It's tiny.

Everything needed should be:

import matplotlib.figure

fig = matplotlib.figure.Figure()
ax = fig.add_axes((0.2, 0.2, 0.6, 0.6))
ax.imshow(...)

And would you mind if I put my opinion about the not-a-numpy-issue
character on the numpy list too?  I think it's a pure matplotlib
problem, in my opinion numpy is behaving well, although they told you
to fill in a ticket?

Friedrich

--- On Sat, 3/6/10, Friedrich Romstedt <fri...@gm...> wrote:

> >> d1 is a diagram_cl.Diagram instance, holding a
> >
> > Sorry for being dense, but where do I get diagram_cl?
> 
> All you tried won't work, diagram_cl is not included with
> matplotlib,
> and as I think it never will.  Please clone or
> download from
> http://github.com/friedrichromstedt/diagram_cl . See
> also
> http://sourceforge.net/mailarchive/forum.php?thread_name=4B8443E2.9000506%40gmail.com&forum_name=matplotlib-users
> . Do you need advice with installing the package?  I
> have not provided
> an setup.py so far.

Ah, ok, not right now (perhaps later): for the purpose of adding your code to the numpy bug ticket, I think it's best if I use something a little more ubiquitous. ;-)  But it looks useful, so I'll probably grab it and try it out myself; is it pure python, i.e., should I be able to just put it in a folder containing an init file in site-packages and then it should "just work"?

Thanks again,

DG

DG

> 
> Friedrich
> 


      

2010/3/6 David Goldsmith <d_l...@ya...>:
> Yeah, my email client (yahoo!) showed your example submission email as being directly to me, not the list, so I assumed that you were sending it directly to me because you saw that I had cross-posted to the numpy list.  Anyway, I'm returning this thread to this list, FWIW.

Yeah, my e-mail client (gmail) chooses for e-mail from the
matplotlib-users list as default recipient of the answer always the
sender (maybe a misconfiguration?).  I have to click "Answer All", and
I sometimes fail to do so, and do not recognise.

>> d1 is a diagram_cl.Diagram instance, holding a
>
> Sorry for being dense, but where do I get diagram_cl?

All you tried won't work, diagram_cl is not included with matplotlib,
and as I think it never will.  Please clone or download from
http://github.com/friedrichromstedt/diagram_cl . See also
http://sourceforge.net/mailarchive/forum.php?thread_name=4B8443E2.9000506%40gmail.com&forum_name=matplotlib-users
. Do you need advice with installing the package?  I have not provided
an setup.py so far.

Friedrich

Try

    cb.orientation = "horizontal"
    cb.update_bruteforce(cb.mappable)

it seems to work okay.
However, note that "update_bruteforce" clears the axes then redraws.
So, if you added some artists in the colorbar axes by yourself
(although this is not likely), they will be lost.

Regards,

-JJ



On Thu, Mar 4, 2010 at 8:48 PM, Thomas Robitaille
<tho...@gm...> wrote:
> Hi,
>
> I would like to change the orientation of a colorbar once it has already been drawn. So for example if I create the colorbar with:
>
> cb = fig.colorbar(mappable=image, cax=cax, orientation='vertical')
>
> I would like to be able to do
>
> cb.set_orientation('horizontal')
>
> Is there a way to do this, since set_orientation does not exist?
>
> Thanks for any help,
>
> Thomas
>
>
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

--- On Sat, 3/6/10, Friedrich Romstedt <fri...@gm...> wrote:

> Note, that this is private discussion now and no longer on
> the list
> (accidentally?).  If you want to put it back on the
> list, please feel
> free to do so.

Yeah, my email client (yahoo!) showed your example submission email as being directly to me, not the list, so I assumed that you were sending it directly to me because you saw that I had cross-posted to the numpy list.  Anyway, I'm returning this thread to this list, FWIW.

> d1 is a diagram_cl.Diagram instance, holding a

Sorry for being dense, but where do I get diagram_cl?

>>> from matplotlib import diagram_cl as dc
Traceback (most recent call last):
  File "<input>", line 1, in <module>
ImportError: cannot import name diagram_cl

and http://matplotlib.sourceforge.net/search.html?q=diagram_cl yields:

Search Results

Your search did not match any documents.

DG

> matplotlib.figure.Figure instance and an
> matplotlib.axes.Axes instance
> of that figure.  I used it because I was too lazy to
> create them on my
> own.
> 
> fwiw, diagram_cl is used to plot single-axes
> diagrams.  There are also
> accompanying Layer2D (f(x) plots) and Layer3D
> (xy-colorplots) classes.
>  They hide the internals of matplotlib completely and
> provide a pure
> data-oriented interface.
> 
> Friedrich
>