[Paraview] plot contour in ParaView

[Yifei]

Thanks for your reply. My goal is to plot stress contour for my simulation results. It seems to me that when I use pizza.py to convert dump file from LAMMPS into other file types, the data is always point data (coordinate and value at a point). So I wonder if I could convert the dump file into certain file types ParaView could use to plot contours?

As far as I know, in MATLAB I could use griddata function to interpolate scattered data (point data in 2D). Then use contourf function to generate contours. I wonder if ParaView provides similar functions like griddata to convert the input data, then apply the contour filter?

Thanks,
Yifei




> On Apr 8, 2015, at 1:57 PM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
> 
> Yifei,
> 
> Contouring as an operation doesn't make much sense for point clouds.
> The question would be what is your end goal? What information do you
> want to extract from the point could? Maybe I can suggestion
> alternative operations that can help you achieve that.
> 
> Utkarsh
> 
> On Wed, Apr 8, 2015 at 1:52 PM, Yifei <yma74 at gatech.edu> wrote:
>> It is point cloud. What data type could the contour filter apply to? Is it possible to convert dump files from LAMMPS to this type of data?
>> 
>> Thanks for your kindly help.
>> Yifei
>> 
>>> On Apr 8, 2015, at 10:50 AM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
>>> 
>>> I am correct that your dataset is just a point-cloud or am I missing
>>> something? If it is a point cloud, how are you contouring it, in the
>>> first place? The contour filter cannot be applied to a point cloud.
>>> 
>>> Utkarsh
>>> 
>>> 
>>> 
>>> On Tue, Apr 7, 2015 at 4:35 PM, Yifei <yma74 at gatech.edu> wrote:
>>>> Please find the dataset in the attachment.
>>>> 
>>>> Thanks,
>>>> Yifei
>>>> 
>>>> 
>>>> 
>>>> 
>>>>> On Apr 7, 2015, at 4:28 PM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
>>>>> 
>>>>> If you can share a sample dataset to illustrate the problem, it may help.
>>>>> 
>>>>> Utkarsh
>>>>> 
>>>>> On Tue, Apr 7, 2015 at 4:13 PM, Yifei <yma74 at gatech.edu> wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> I just double checked. I did check the "Compute Scalars" option.
>>>>>> 
>>>>>> Best,
>>>>>> Yifei
>>>>>> 
>>>>>>> On Apr 7, 2015, at 3:44 PM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
>>>>>>> 
>>>>>>>> How can I use damage or velocity as the coloring options?
>>>>>>> 
>>>>>>> Make sure you have "Compute Scalars" option checked on the
>>>>>>> "Properties" panel for the Contour filter.
>>>>>>> 
>>>>>>> Utkarsh
>>>>>> 
>>>> 
>>>> 
>>