[Paraview] 3D contour smoothness

[Cory Quammen]

Just a little more info on this. The problem starts with 3.98.

On Fri, Sep 19, 2014 at 12:08 PM, Philipp E. <pspeachum at gmail.com> wrote:
> Sorry Cory,
>
> you are right. The cell number is the same.
>
> Regards
> Philipp
>
>
> Am 19.09.2014 um 17:46 schrieb Cory Quammen:
>> Philipp,
>>
>> I can confirm what you see with a pre 4.2 version of ParaView.
>> However, the number of produced cells is the same.
>>
>> I will try to track down why this changed.
>>
>> Thanks,
>> Cory
>>
>> On Fri, Sep 19, 2014 at 11:17 AM, Philipp E <pspeachum at gmail.com> wrote:
>>> Hi Cory
>>>
>>> I managed to compress the data set to a fair size and attached it to
>>> this mail. The data set is pressure, contour value is 0.55.
>>>
>>> By looking again at the data (contour -> information), I just found that
>>> the old version (3.14.1) uses 148432 cells , while the the new one
>>> employs 75232 cells. Hope that helps.
>>>
>>> Kind regards
>>> Philipp
>>>
>>> Errata: I meant 4.2.0RC1 in the previous mails.
>>>
>>> On 09/19/2014 04:59 PM, Cory Quammen wrote:
>>>> Phillipp,
>>>>
>>>> Do you have a data set similar to the one you've shown that you can share?
>>>>
>>>> Thanks,
>>>> Cory
>>>>
>>>> On Fri, Sep 19, 2014 at 10:48 AM, Philipp E <pspeachum at gmail.com> wrote:
>>>>> Hi Cory,
>>>>>
>>>>> thank you for your fast feedback.
>>>>>
>>>>> a) Compute normal is checked. (Without normals, the contour is
>>>>> completely stepped)
>>>>> b) Contour values are the same.
>>>>>
>>>>> Regards
>>>>> Philipp
>>>>>
>>>>> On 09/19/2014 04:40 PM, Cory Quammen wrote:
>>>>>> Philipp,
>>>>>>
>>>>>> In the contour filter, is the option "Compute Normals" checked in 4.0 RC1?
>>>>>>
>>>>>> Also, are the contour values the same between the two versions?
>>>>>>
>>>>>> Thanks,
>>>>>> Cory
>>>>>>
>>>>>> On Fri, Sep 19, 2014 at 10:25 AM, Philipp E <pspeachum at gmail.com> wrote:
>>>>>>> Hello everyone,
>>>>>>>
>>>>>>> after extensive search I was desperate enough to post on this list:
>>>>>>>
>>>>>>> It appears that the surface smoothing algorithm of the contour filter
>>>>>>> does not work as "aggressive" as in older version (3.14.1 was the last
>>>>>>> one we found to do so). As an example I prepared this two screenshots,
>>>>>>> VTK data are scalars on a structured grid (200x100x100), legacy format.
>>>>>>> (An additional call of the "smooth" filter does not help.)
>>>>>>>
>>>>>>> 3.14.1
>>>>>>> http://s7.directupload.net/images/140919/euadfvko.png
>>>>>>> 4.0.RC1
>>>>>>> http://s14.directupload.net/images/140919/84y689mi.png
>>>>>>>
>>>>>>> Both versions are running with the shipped settings. Since the effect
>>>>>>> could be reproduced on several workstations, we are wondering whether
>>>>>>> there has been an (undocumented?) change in the filter mechanism or some
>>>>>>> option we/setting/data problem we are not aware of.
>>>>>>>
>>>>>>> Kind regards and thanks in advance
>>>>>>> Philipp Engels.
>>>>>>>
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>