[Paraview] translate geometry in space

[Tanaka Simon]

Thank you, Sam, "Transform" was what i was looking for.

However, consider the following situation:
-> two identical polygons (well, almost identical, in the order of 
machine epsilon)
-> applying the 'Transform' to both of them: moving both by 100 in +z 
direction

Then, strangely, they do not coincide nicely any more. It seems that 
there is some massive inaccuracy introduced by applying the 'Transform 
filter'....

Does anyone have ever encountered that artefact? Any suggestions to 
remove/reduce that?

Best wishes
Simon


On 18.11.2014 15:48, Samuel Key wrote:
> Simon,
>
> Assuming your 2D datum set is in x,y-coordinates, one can expand this 
> to 3D by adding a 0.0 value for the "missing" z-coordinate.
>
> PV has a Transform filter that will then let you add a constant value 
> to the z-coordinate, or, equally easily, scale the z-coordinate.
>
> On the other hand, if you really want to create a "carpet" plot that 
> makes your 2D datum set appear as 'mountains and valleys,' one can 
> likewise add the datum attribute (for example, density) as if it were 
> the z-coordinate. Again, PV's Transform filter will let you scale the 
> z-coordinate into a range that makes the image pleasing. It will be a 
> 3D image, that is easily oriented for viewing. The coloring can be 
> either by any of the point values, or a single color of your choosing.
>
> There may be a more direct way to achieve this that someone else can 
> explain?
>
> Hope this helps.
>
> Sam
>
> On 11/18/2014 6:35 AM, Tanaka Simon wrote:
>> Dear ParaView Users,
>>
>> I have a vtm 2D data structure, containing:
>> -> vtp polygons
>> -> vti image data (field) data
>>
>>
>> now i want to translate the polygons (for an 'explosion view'), i.e. 
>> i want to add +1 to all z-coordinates of the polygons.
>>
>>
>> how can i do that? do i have to code it in the "programmable filter"?
>>
>>
>> thanks for any suggestion
>> simon
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