[Paraview] plot contour in ParaView

[Utkarsh Ayachit]

Yifei,

Ideally, you want to put it out as an 10x10x20 Uniform Rectilinear
Grid, vtkImageData (since that's what it seems to be). For information
on what vtkImageData looks like, refer to Chapter 3 from The ParaView
Guide which can be downloaded from here[1].

[1] http://www.paraview.org/paraview-guide/

On Wed, Apr 8, 2015 at 2:11 PM, Yifei <yma74 at gatech.edu> wrote:
> 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
>>>>>>>
>>>>>
>>>>>
>>>
>