[Paraview] Joining / Merging different data sources

Ken Mankoff mankoff at gmail.com
Tue Apr 1 12:08:10 EDT 2014


Hi,

Thanks for the pointer to Group Datasets, Andy. That seems to be useful.

BUT even that has issues... if I group, then the Delauny2D applies to
all, etc. 

Is there a way to apply a global Z-scale? When working with topography
it would be nice to not worry about each of the many individual data
products brought in, and just have them all scaled by 3 or 10 in Z
only. Is this possible?

Thanks,

  -k.


On 2014-03-31 at 22:15, Andy Bauer wrote:
> Hi Ken,
>
> There are 2 options that sound kind of what you're looking for. The first
> is the Group Datasets filter which combines data sets into a multiblock
> data set. Just highlight the filters that you want to combine before
> selecting the Group Datasets filter. The advantage to this is that it is
> very cheap memory wise due to shallow-copying of data. It also doesn't have
> the requirement that they must be the same original data set or even
> contain the same fields.
>
> The second option is to use the Append Datasets filter which turns all of
> your grouped data sets into a single unstructured grid and ignores and
> point or cell data that doesn't exist in all of the input grids. This has
> the advantage that it acts as a single "joined" data set but can be costly
> memory-wise, especially if any of your original grids are a structured grid.
>
> Regards,
> Andy
>
> ps. Welcome to the mailing list!
>
>
> On Mon, Mar 31, 2014 at 7:00 PM, Ken Mankoff <mankoff at gmail.com> wrote:
>
>> Hi,
>>
>> Paraview newbie here. First time posting.
>>
>> I have multiple data sets and I think I would like to merge or join them
>> to make the final product easier to work with.
>>
>> Specifically, I have two CSV files. One pipeline is load -> Delauny
>> 2D. The other CSV pipeline is just load. Then I would like apply "Warp
>> by Scalar" to both, and select a colorbar and have that apply to both.
>>
>> I'll be bringing in other data that I would like to Warp by Scalar (the
>> same scalar, so that everything has a better Z scale). But the other
>> data will have its own colorbar, and further processing.
>>
>> Being a newbie I'm not even sure if "merge" or "join" are the correct
>> keywords to use when searching for what I want to do. I've read the
>> manual section on Manipulating the Pipeline.
>> http://www.paraview.org/Wiki/ParaView/UsersGuide/Manipulating_the_Pipeline
>> I don't see an appropriate section to explore based on the ToC in the
>> Paraview manual.
>>
>> Thanks for any guidance,
>>
>>   Ken Mankoff
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