[vtkusers] Vector Drawing

[David Cole]

Please look specifically at the ProbeWithPointWidget.tcl example in 
VTK/Examples/GUI/Tcl. After running the script, press the "i" key to 
begin interaction. In the example, "point" is a vtkPolyData which is 
passed as input to a vtkProbeFilter, which is then passed to 
SetInputConnection on the vtkGlyph3D.

For a single vector vtkPolyData, you should be able simply to construct 
one and then add a single point to it. (I would analyze the output of 
the vtkProbeFilter to see what else might be present if that simple 
suggestion doesn't produce your expected results.)

Please keep further replies "on list" so that anybody else who has time 
to chime in is able to...


Thanks,
David Cole


Jean-Baptiste Estival wrote:

> thanks for the answer,
>
> but I don't know which "SetInput" do I need to pass to the Glyph3D. It 
> would be a vtkDataSet like vtkPolyData, but I don't know how to 
> specify a single vector in a vtkDataSet. Can you help me ?
>
> thanks again.
>
> David Cole a écrit :
>
>> See the "related examples" page for vtkGlyph3D in the documentation:
>> http://www.vtk.org/doc/nightly/html/c2_vtk_e_2.html#c2_vtk_e_vtkGlyph3D
>>
>> Browse to these with the table of contents for related pages at 
>> http://www.vtk.org/doc/nightly/html/pages.html. Every class that is 
>> used in an example should be listed in these pages.
>>
>> There will also be a link to the examples on the class page for 
>> vtkGlyph3D.
>>
>>
>> HTH,
>> David
>>
>>
>>
>> Jean-Baptiste Estival wrote:
>>
>>> Hi all,
>>>
>>> I just need to draw an oriented vector in my scene. I read about 
>>> using Glyph3D and Glyph2D, but I need a little piece of code :)
>>> Thanks
>>>
>>>
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>
>