Dear Takuya

Thanks for your infomation.
I created sphere and changed the interpolation tab.
I could  recognize the difference between flat and Gouraud.
Thank you very much.

Shinya Ogata



2010/10/15 Takuya OSHIMA <osh...@eng.niigata-u.ac.jp>:
> Hi Shinya,
>
> If I am not mistaken Gouraud is an interpolation for shading than for
> field values. Try crating a Sphere source and changing the
> Interpolation selection between Gouraud and Flat, hopefully you'll see
> the difference in shading.
>
> Takuya
>
> Takuya OSHIMA, Ph.D.
> Faculty of Engineering, Niigata University
> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
>
> From: Andy Bauer <andy.ba...@kitware.com>
> Subject: Re: [Paraview] Fwd: Interpolation problem
> Date: Thu, 14 Oct 2010 11:06:36 -0400
>
>> 2010/10/14 小縣信也 <so020...@gmail.com>
>>
>>> Hi Andy,
>>>
>>> Thank you for replying.
>>> Do you mean that the rendering image doesn't reflect the result of
>>> interpolation ?
>>>
>>
>> Yes.
>>
>>
>>> If so, what is the most common usage?
>>> In what situation is the interpolation used ?
>>>
>>
>> If your grid uses triangles then the image should match the interpolation
>> for the typical node/point based interpolation.
>>
>>
>>
>>> Shinya
>>>
>>>
>>> 2010/10/13 Andy Bauer <andy.ba...@kitware.com>:
>>> > I think this is a rendering issue and not an interpolation issue.  From
>>> the
>>> > 2d plot you can see that it's properly interpolating the values.  I think
>>> > the quadrilateral is getting rendered as 2 triangles in which case the
>>> > diagonal values appear to be constant since the 2 end points are at the
>>> same
>>> > value.
>>> >
>>> > 2010/10/12 小縣信也 <so020...@gmail.com>
>>> >>
>>> >> Hello
>>> >>
>>> >> I'm sending  the following  e-mail again ,because nobody answered it.
>>> >> Does anyone have information on my problem?
>>> >>
>>> >> Shinya
>>> >>
>>> >>
>>> >> ---------- Forwarded message ----------
>>> >> From: 小縣信也 <so020...@gmail.com>
>>> >> Date: 2010/10/7
>>> >> Subject: Interpolation problem
>>> >> To: paraview@paraview.org
>>> >>
>>> >>
>>> >> Hello, paraview users
>>> >>
>>> >> I draw the file “Sample_inter.vtk” on ParaView. (ref:attached file)
>>> >> I chose “Gouraud” in Interpolation option.
>>> >> The contor picture doesn’t seem to be interpolated by 4 points.
>>> >> However,the graph which is made by PlotOverLine shows the gradation of
>>> >> 4 points scalar.
>>> >> Why are they different?
>>> >> Does anyone know this problem?
>>> >> How can I make contour picture interpolated by  Gouraud ?
>>> >>
>>> >> I look forward to your reply to my inquiry
>>> >>
>>> >> Shinya Ogata
>>> >>
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>>> >
>>> >
>>>
>
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