[vtkusers] How to vis normal vectors of polydata as arrows ?

[Bill Lorensen]

Here is a simple example:
http://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/OrientedGlyphs


On Thu, Oct 30, 2014 at 8:04 AM, David Cole via vtkusers
<vtkusers at vtk.org> wrote:
> Also, this example:
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CurvatureBandsWithGlyphs
>
> contains much more than what you're asking for, but also does contain
> exactly what you're asking for. Visualizing normal vectors with arrow
> glyphs.
>
> HTH,
> David C.
>
>
> On Wed, Oct 29, 2014 at 10:52 PM, Adamos Kyriakou <somada141 at gmail.com>
> wrote:
>>
>> I wrote a blog post which shows how to do that. Take a look at
>> http://pyscience.wordpress.com/2014/10/05/from-ray-casting-to-ray-tracing-with-python-and-vtk/
>>
>> Cheers,
>> Adam
>>
>> On Oct 30, 2014, at 1:33 PM, Lin M <majcjc at gmail.com> wrote:
>>
>> Hi all,
>>
>> I'm trying to vis the normal vectos of polydata as arrows. Is there any
>> convenient way to achieve this? I read the example
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/OrientedArrow
>> here, but I still don't understand how to do this. It seems to vis one arrow
>> we need to follow quite a lot steps. I think my problem is the same with
>> http://vtk.1045678.n5.nabble.com/vtkglyph3D-with-arrowsource-td1247920.html
>> , though there is no answer below. :-(
>>
>> Can anyone give me some advice? Thank you very much!
>>
>> Best,
>> Lin
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