[vtkusers] Different alpha values for scalars

[Sebastian Gatzka]

Sounds good.
Than how can I set three different alpha values for three different 
scalar intervalls?

Am 17.03.2010 21:45, schrieb Sebastien Jourdain:
> You can also set alpha in your lookuptable...
>
> On Wed, Mar 17, 2010 at 9:29 AM, Sebastian Gatzka 
> <sebastian.gatzka at stud.tu-darmstadt.de 
> <mailto:sebastian.gatzka at stud.tu-darmstadt.de>> wrote:
>
>     Sounds good.
>
>     And how can I mange to unite three different actors on one single
>     cutting plane?
>
>     Sebastian
>
>     Am 10.03.2010 16:05, schrieb Rakesh Patil:
>>     hi..
>>
>>     one option is you can use vtkThreshold, if your threshold ranges
>>     are fiixed.. Like in your example, there are three conditions..
>>     So three times, u can use vtkThreshold class and create that many
>>     actors..
>>
>>     Any other way is there my friends..??
>>
>>     Thanks
>>
>>     Regards
>>     Rakesh Patil
>>
>>
>>         ---------- Original message ----------
>>         From:Sebastian Gatzka< sebastian.gatzka at stud.tu-darmstadt.de
>>         <mailto:sebastian.gatzka at stud.tu-darmstadt.de> >
>>         Date: 10 Mar 10 17:50:06
>>         Subject: [vtkusers] Different alpha values for scalars
>>         To: vtkusers at vtk.org <mailto:vtkusers at vtk.org>
>>
>>
>>
>>         Hello world.
>>
>>         Do you know if it's possible to assign different alpha values
>>         to a scalar field representation (for example on a cutting
>>         plane)?
>>
>>         I want to have scalar to be more transparent if they are
>>         below some defined threshold.
>>         For example something like this
>>
>>             * scalar < 0.1 : alpha = 0.3
>>             * 0.1 < scalar < 0.5 : alpha = 0.7
>>             * scalar > 0.5 : alpha = 1.0
>>
>>         Do you know how I can manage this?
>>
>>         Sebastian
>>
>
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