Sorry, it is "line_collection_2d_to_3d()".
On Thu, May 21, 2015 at 12:02 PM, Raj Kumar Manna <rajphysics....@gmail.com>
wrote:
> Its giving a error,
>
> art3d.linecollection_2d_to_3d(stream.lines)
> AttributeError: 'module' object has no attribute 'linecollection_2d_to_3d'
>
>
>
> Here is my script,
>
>
> import matplotlib.pyplot as plt
> from matplotlib.patches import Circle, PathPatch
> from mpl_toolkits.mplot3d import Axes3D
> import mpl_toolkits.mplot3d.art3d as art3d
> import numpy as np
> from pylab import *
> from matplotlib.collections import LineCollection
>
>
>
> fig = plt.figure()
> ax=fig.gca(projection='3d')
>
>
> f=np.loadtxt('flow-velocity343.dat')
> dx,dz=1.0,1.0
>
> xmin,zmin,xmax,zmax=min(f[:,0]),min(f[:,2]),max(f[:,0]),max(f[:,2])
> nbinx,nbinz=int((xmax-xmin)/dx)+1,int((zmax-zmin)/dz)+1
> Ux=np.zeros([nbinz,nbinx],'d')
> Uy=np.zeros([nbinz,nbinx],'d')
> Uz=np.zeros([nbinz,nbinx],'d')
> speed=np.zeros([nbinz,nbinx],'d')
> logv=np.zeros([nbinz,nbinx],'d')
>
>
>
> for f1 in f:
> binx,binz=int((f1[0]-xmin)/dx),int((f1[2]-zmin)/dz)
> Ux[binz][binx]=f1[3]
> Uy[binz][binx]=f1[4]
> Uz[binz][binx]=f1[5]
> speed[binz][binx] = np.sqrt( Ux[binz][binx]*Ux[binz][binx] +
> Uz[binz][binx]*Uz[binz][binx] + Uy[binz][binx]*Uy[binz][binx] )
> logv[binz][binx] = log(speed[binz][binx])
> x,z=np.arange(xmin,xmax+dx,dx),np.arange(zmin,zmax+dz,dz)
> y=np.arange(0,71,1)
> X,Z=np.meshgrid(x,z)
>
> stream = ax.streamplot(X, Z, Ux, Uz, color='black', linewidth=2)
> #lines = stream.lines.get_paths()
>
> art3d.linecollection_2d_to_3d(stream.lines)
> for p in stream.arrows:
> art3d.patch_2d_to_3d(p)
>
>
>
> plt.show()
>
>
>
>
>
> Thanks
> Raj
>
>
> On Thu, May 21, 2015 at 9:19 PM, Benjamin Root <ben.r...@ou.edu> wrote:
>
>> (keeping the discussion on the mailing list)
>>
>> The object you get back have two attributes: "lines" and "arrows". This
>> is just psuedo-code, but it would look something like this:
>>
>> ```
>> stream = ax.streamplot(......)
>> art3d.linecollection_2d_to_3d(stream.lines, ....)
>> for p in stream.arrows:
>> art3d.patch_2d_to_3d(p, ...)
>> ```
>> Again, I have no clue if this actually would work. I haven't tried doing
>> this myself.
>>
>> Ben Root
>>
>> On Thu, May 21, 2015 at 11:39 AM, Raj Kumar Manna <
>> rajphysics....@gmail.com> wrote:
>>
>>> Thanks for your quick reply.
>>>
>>> I have plotted the streamplot in 2d . I am not able to extract lines or
>>> arrow from streamplot. I am new user of matplotlib, can you please tell me
>>> the syntax to extract lines and arrows from streamplot().
>>>
>>> Thanks for you help.
>>> Raj
>>>
>>> On Thu, May 21, 2015 at 8:30 PM, Benjamin Root <ben.r...@ou.edu> wrote:
>>>
>>>> Well, there is the new 3D quiver feature:
>>>> http://matplotlib.org/examples/mplot3d/quiver3d_demo.html. Not quite
>>>> streamlines, but it might do in a pinch.
>>>>
>>>> Another approach:
>>>> There is the 2d streamplot() function that returns a specialized
>>>> object. From the docstring:
>>>> ```
>>>> Returns:
>>>>
>>>> *stream_container* : StreamplotSet
>>>> Container object with attributes
>>>>
>>>> - lines: `matplotlib.collections.LineCollection` of
>>>> streamlines
>>>>
>>>> - arrows: collection of
>>>> `matplotlib.patches.FancyArrowPatch`
>>>> objects representing arrows half-way along stream
>>>> lines.
>>>> ```
>>>>
>>>> You might be able to get away with using the "lines" object and feeding
>>>> it through art3d.line_collection_2d_to_3d(), kind of like how it is done
>>>> for pathpatch objects here:
>>>> http://matplotlib.org/examples/mplot3d/pathpatch3d_demo.html. You
>>>> might also be able to pass the individual objects in the "arrows" list
>>>> through art3d.patch_2d_to_3d(), but I have no clue if that would actually
>>>> work or not.
>>>>
>>>> I hope that helps!
>>>> Ben Root
>>>>
>>>>
>>>> On Thu, May 21, 2015 at 7:45 AM, Raj Kumar Manna <
>>>> rajphysics....@gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I need to plot a 2d streamline in 3d view like this
>>>>> <http://stackoverflow.com/questions/14963004/continuous-shades-on-matplotlib-3d-surface>.
>>>>> As suggested by the post
>>>>> <http://stackoverflow.com/questions/16252231/symmetric-streamplot-with-matplotlib/16373060#16373060>,
>>>>> I need to extract streamlines and arrows from a 2d plot and then transform
>>>>> it to 3d data. How to transform this 2d streamline data to 3d data and
>>>>> plot
>>>>> using mplot3d?
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Raj
>>>>>
>>>>>
>>>>> --
>>>>> ##################################################################
>>>>> Raj Kumar Manna
>>>>> Complex Fluid & Biological Physics Lab
>>>>> IIT Madras
>>>>>
>>>>> Ph. No. 8144637401
>>>>>
>>>>> alternate email: r...@physics.iitm.ac.in <rajphysics....@gmail.com>
>>>>> ####################################################################
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> One dashboard for servers and applications across
>>>>> Physical-Virtual-Cloud
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>>>>>
>>>>
>>>
>>>
>>> --
>>> ##################################################################
>>> Raj Kumar Manna
>>> Complex Fluid & Biological Physics Lab
>>> IIT Madras
>>>
>>> Ph. No. 8144637401
>>>
>>> alternate email: r...@physics.iitm.ac.in <rajphysics....@gmail.com>
>>> ####################################################################
>>>
>>
>>
>
>
> --
> ##################################################################
> Raj Kumar Manna
> Complex Fluid & Biological Physics Lab
> IIT Madras
>
> Ph. No. 8144637401
>
> alternate email: r...@physics.iitm.ac.in <rajphysics....@gmail.com>
> ####################################################################
>
------------------------------------------------------------------------------
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Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
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