[Paraview] 3D contour smoothness

[Philipp E]

Hi Cory,

can you report any updates for this issue?

Best regards and thanks for your efforts
Philipp

On 09/19/2014 07:17 PM, Cory Quammen wrote:
> 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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