[vtkusers] from vtk import * ImportError: (Python VTK 6.2 on ubuntu 14.04)
Dan Lipsa
dan.lipsa at kitware.com
Wed Aug 5 10:36:49 EDT 2015
Manjunath,
I get a range rather than NaN when I run it on my machine with the latest
VTK from git master.
Range of SAL: 28.04-36.88
I do have error complaining about missing
sliceOn.jpg and sliceOff.jpg.
Could you try your example on the latest VTK master (your have to build it)
http://www.vtk.org/Wiki/VTK/Configure_and_Build
or on VTK 6.3 rc1?
http://www.vtk.org/download/
I am not sure what your other python error is, maybe related to
http://stackoverflow.com/questions/15608236/eclipse-and-google-app-engine-importerror-no-module-named-sysconfigdata-nd-u
On Wed, Aug 5, 2015 at 9:41 AM, Manjunath K E <ke.manjunath at gmail.com>
wrote:
> Hi Dan Lipsa,
>
> Please find the required file "3d.nc" and the python code is attached
> in "datareader.py1".
>
> The problem is that the *a,b = reader.GetOutput().*
> *GetPointData().GetScalars().**GetRange() *is returning NaN value.
>
> one more thing I found was, when I start *"vtkpython**"* by keeping *"*
> */usr/lib/python2.7**" *in *"PYTHONPATH**" *then following error will be
> obtained. If I remove *"**/usr/lib/python2.7" *from *"PYTHONPATH**"*, I
> wont get any error.
>
> export
> PYTHONPATH=/usr/lib/python2.7:/usr/local/lib/python2.7/site-packages:$PYTHONPATH
>
> manju at iiitb-gvcl-Z800:~/manju/academics/iiitb/project/codes/incois__laptp/src_vtk6$
> vtkpython
> vtk version 6.2.0
> Traceback (most recent call last):
> File "/usr/lib/python2.7/site.py", line 563, in <module>
> main()
> File "/usr/lib/python2.7/site.py", line 545, in main
> known_paths = addusersitepackages(known_paths)
> File "/usr/lib/python2.7/site.py", line 272, in addusersitepackages
> user_site = getusersitepackages()
> File "/usr/lib/python2.7/site.py", line 247, in getusersitepackages
> user_base = getuserbase() # this will also set USER_BASE
> File "/usr/lib/python2.7/site.py", line 237, in getuserbase
> USER_BASE = get_config_var('userbase')
> File "/usr/lib/python2.7/sysconfig.py", line 578, in get_config_var
> return get_config_vars().get(name)
> File "/usr/lib/python2.7/sysconfig.py", line 524, in get_config_vars
> _init_posix(_CONFIG_VARS)
> File "/usr/lib/python2.7/sysconfig.py", line 408, in _init_posix
> from _sysconfigdata import build_time_vars
> File "/usr/lib/python2.7/_sysconfigdata.py", line 6, in <module>
> from _sysconfigdata_nd import *
> ImportError: No module named _sysconfigdata_nd
>
>
> Thanks and Regards,
>
> Manjunath K E
> Help Ever Hurt Never
>
>
> On Tue, Aug 4, 2015 at 10:15 PM, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>
>> It would be great if you could share your data as well so that I can
>> check it with my installation. Thanks,
>> Dan
>>
>>
>> On Tue, Aug 4, 2015 at 11:31 AM Manjunath K E <ke.manjunath at gmail.com>
>> wrote:
>>
>>> Hi Dan Lipsa,
>>>
>>> Thanks for the reply. The error is occurring during runtime. There was
>>> no error, when i ran it in interpreter. All the lines in the script
>>> executed smoothly.
>>> I have tested the same code using vtk 6.0.0 there was no error.
>>>
>>> Also, the output that i get is not proper. There is problem in the color
>>> map of the output produced. The scale bar is not displayed properly.
>>> ==========================================
>>> #!/usr/bin/env python
>>> from vtk import *
>>>
>>> reader = vtkNetCDFCFReader()
>>> reader.SetFileName("3d.nc")
>>> reader.SphericalCoordinatesOff()
>>> reader.SetOutputType(6)
>>> reader.SetReplaceFillValueWithNan(1)
>>> reader.Update()
>>> #Copy SAL Array to scalar value field of point data ..this makes point
>>> data to point to SAL array
>>>
>>> reader.GetOutput().GetPointData().SetScalars(reader.GetOutput().GetPointData().GetArray("SAL"))
>>> reader.UpdateMetaData()
>>> reader.Update()
>>> reader.UpdateInformation()
>>> output = reader.GetOutput()
>>>
>>> a,b = reader.GetOutput().GetPointData().GetScalars().GetRange()
>>> lut = vtk.vtkColorTransferFunction()
>>> lut.AddRGBPoint(a, 0.0, 0.0, 0.8)
>>> lut.AddRGBPoint(a+(b-a)/4, 0.0, 0.5, 0.5)
>>> lut.AddRGBPoint(a+(b-a)/2, 0.0, 1.0, 0.0)
>>> lut.AddRGBPoint(b-(b-a)/4, 0.5, 0.5, 0.0)
>>> lut.AddRGBPoint(b, 1.0, 0.0, 0.0)
>>> lut.SetNanColor(0,0,1)
>>>
>>> # the mapper that will use the lookup table
>>> mapper = vtkDataSetMapper()
>>> mapper.SetInputData(reader.GetOutput())
>>> mapper.SetScalarModeToUsePointData()
>>> mapper.SetLookupTable(lut)
>>> mapper.SetScalarRange(a,b)
>>> # the actor
>>> gridActor = vtkActor()
>>> gridActor.SetMapper( mapper )
>>> scaleBarActor = vtkScalarBarActor()
>>> scaleBarActor.SetLookupTable( mapper.GetLookupTable() )
>>> scaleBarActor.SetTitle("Color Map for Point Data")
>>> scaleBarActor.SetOrientationToHorizontal()
>>> scaleBarActor.GetLabelTextProperty().SetColor(0,0,1)
>>> scaleBarActor.GetTitleTextProperty().SetColor(0,0,1)
>>>
>>> # position it in window
>>> coord = scaleBarActor.GetPositionCoordinate()
>>> coord.SetCoordinateSystemToNormalizedViewport()
>>> coord.SetValue(0.1,0.05)
>>> scaleBarActor.SetWidth(.5)
>>> scaleBarActor.SetHeight(.1)
>>>
>>> # renderer and render window
>>> renderer = vtkRenderer()
>>> renderer.SetBackground(1, 1, 1)
>>> renderer.SetGradientBackground(1) # Set background to white
>>> renWindow = vtk.vtkRenderWindow()
>>> renWindow.SetSize(512, 512)
>>> renWindow.AddRenderer( renderer )
>>>
>>> # render window interactor
>>> renWinInteractor = vtkRenderWindowInteractor()
>>> renWinInteractor.SetRenderWindow( renWindow )
>>> # add the actors to the renderer
>>> renderer.AddActor( gridActor )
>>> renderer.AddActor( scaleBarActor )
>>>
>>> #show axes
>>> axesActor = vtkAxesActor()
>>> widget = vtkOrientationMarkerWidget()
>>> widget.SetOrientationMarker( axesActor )
>>> widget.SetInteractor( renWinInteractor )
>>> widget.SetViewport( 0.0, 0.0, 0.4, 0.4 )
>>> widget.SetEnabled( 1 )
>>> widget.InteractiveOff()
>>>
>>> # render
>>> renderer.ResetCamera();
>>> renWindow.Render()
>>> # initialize and start the interactor
>>> renWinInteractor.Initialize()
>>> renWinInteractor.Start()
>>> ==================================================
>>>
>>>
>>> Thanks and Regards,
>>>
>>> Manjunath K E
>>> Help Ever Hurt Never
>>>
>>>
>>> On Tue, Aug 4, 2015 at 12:31 AM, Dan Lipsa <dan.lipsa at kitware.com>
>>> wrote:
>>>
>>>> Manjunath,
>>>> Can you share the script you are trying to run? This seems like a
>>>> problem with the script rather than an installation issue.
>>>>
>>>> On Mon, Aug 3, 2015 at 2:16 PM Manjunath K E <ke.manjunath at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Shawn,
>>>>>
>>>>> I followed your instructions, now the vtk importing problem is solved.
>>>>> But, following error is obtained
>>>>>
>>>>> ERROR: In
>>>>> /home/kitware/Desktop/vtkbuild/build/vtk/src/vtk/Rendering/OpenGL/vtkOpenGLTexture.cxx,
>>>>> line 200
>>>>> vtkOpenGLTexture (0x2f2ac90): No scalar values found for texture input!
>>>>>
>>>>> The error is seen for every frame
>>>>>
>>>>> Thanks and Regards,
>>>>>
>>>>> Manjunath K E
>>>>> Help Ever Hurt Never
>>>>>
>>>>>
>>>>> On Mon, Aug 3, 2015 at 11:36 PM, Shawn Waldon <
>>>>> shawn.waldon at kitware.com> wrote:
>>>>>
>>>>>> Hi Manjunath,
>>>>>>
>>>>>> Please keep discussions on the list so that others can benefit later.
>>>>>>
>>>>>> I haven't used an install tree on Linux for a while but according to
>>>>>> my notes you should need the following assuming it is installed to
>>>>>> /usr/local:
>>>>>>
>>>>>> export
>>>>>> LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib/python2.7/site-packages/vtk:$LD_LIBRARY_PATH
>>>>>>
>>>>>> export PYTHONPATH=/usr/local/lib/python2.7/site-packages:$PYTHONPATH
>>>>>>
>>>>>> HTH,
>>>>>> Shawn
>>>>>>
>>>>>> On Mon, Aug 3, 2015 at 1:59 PM, Manjunath K E <ke.manjunath at gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> Hi Shawn
>>>>>>>
>>>>>>> Thanks for the reply.
>>>>>>> My python script is set up to use the system's python not vtkpython.
>>>>>>>
>>>>>>> I have set export
>>>>>>> PYTHONPATH="/usr/local/lib/python2.7/site-packages/vtk/:$PYTHONPATH".
>>>>>>> export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH
>>>>>>>
>>>>>>> I have installed vtk-6.2 to /usr/local.
>>>>>>>
>>>>>>> Is the should i change the values of PYTHONPATH and LD_LIBRARY_PATH
>>>>>>> to something else.
>>>>>>>
>>>>>>> Thanks and Regards,
>>>>>>>
>>>>>>> Manjunath K E
>>>>>>> Help Ever Hurt Never
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Aug 3, 2015 at 11:17 PM, Shawn Waldon <
>>>>>>> shawn.waldon at kitware.com> wrote:
>>>>>>>
>>>>>>>> Hi Manjunath,
>>>>>>>>
>>>>>>>> Is your python script set up to use vtkpython as the interpreter?
>>>>>>>> Or is it using the system's python? If you are trying to import vtk from
>>>>>>>> system python you have to set your LD_LIBRARY_PATH and PYTHONPATH
>>>>>>>> environment variables. If you want to change the script to use vtkpython
>>>>>>>> then change the first like to #!/path/to/vtkpython
>>>>>>>>
>>>>>>>> HTH,
>>>>>>>> Shawn
>>>>>>>>
>>>>>>>> On Mon, Aug 3, 2015 at 1:43 PM, Manjunath K E <
>>>>>>>> ke.manjunath at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Hi all
>>>>>>>>>
>>>>>>>>> I have installed VTK 6.2 along with vtk 6.2 python interface on
>>>>>>>>> ubuntu 14.04 manually.
>>>>>>>>>
>>>>>>>>> When I run vtkpython in interpreter mode, the import of vtk is
>>>>>>>>> successful.
>>>>>>>>> It doesn't have any problem and the same is shown below.
>>>>>>>>>
>>>>>>>>> ===========================================================
>>>>>>>>> manju at iiitb-gvcl-Z800:~/manju/academics/iiitb/project/codes/incois__laptp/src_vtk6$
>>>>>>>>> vtkpython
>>>>>>>>> vtk version 6.2.0
>>>>>>>>> Python 2.7.2 (default, Feb 12 2015, 18:30:44)
>>>>>>>>> [GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
>>>>>>>>> Type "help", "copyright", "credits" or "license" for more
>>>>>>>>> information.
>>>>>>>>> >>> from vtk import *
>>>>>>>>> >>> print vtk
>>>>>>>>> <module 'vtk' from
>>>>>>>>> '/usr/local/lib/python2.7/site-packages/vtk/__init__.pyc'>
>>>>>>>>> >>>
>>>>>>>>> ===========================================================
>>>>>>>>>
>>>>>>>>> But, If i run a python script then an error is obtained for this
>>>>>>>>> line "from vtk import *". The error is as shown below.
>>>>>>>>> ===========================================================
>>>>>>>>> manju at iiitb-gvcl-Z800:~/manju/academics/iiitb/project/codes/incois__laptp/src_vtk6$
>>>>>>>>> ./demo1.py
>>>>>>>>> Traceback (most recent call last):
>>>>>>>>> File "./demo1.py", line 6, in <module>
>>>>>>>>> from vtk import *
>>>>>>>>> ImportError: No module named vtk
>>>>>>>>> ===========================================================
>>>>>>>>>
>>>>>>>>> Please help me in solving this issue. I appreciate your time and
>>>>>>>>> help.
>>>>>>>>>
>>>>>>>>> Thanks and Regards,
>>>>>>>>>
>>>>>>>>> Manjunath K E
>>>>>>>>> Help Ever Hurt Never
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Powered by www.kitware.com
>>>>>>>>>
>>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>>
>>>>>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>>>>>
>>>>>>>>> Search the list archives at:
>>>>>>>>> http://markmail.org/search/?q=vtkusers
>>>>>>>>>
>>>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>
>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>>
>>>>
>>>
>
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