[vtkusers] want to use vtk for high-performance?

[Jean-Guy LaRoche]

thanks for the response,

but doesn't using threads take up alot of the cpu resources?

also, i was thinking of your second suggestion - so would i then derive my 
own class from vtkLocator for example?  and so are you saying that even 
though my class containing the search routine will be derived from a vtk 
class, it will execute almost as fast as its supposed to?

and also - if i were to do this - how does this change the cmakelists file?  
do i then have to add the following?
ADD_EXECUTABLE(myNewClass myNewClass.cxx)
TARGET_LINK_LIBRARIES(myNewClass vtkRendering)

thanks
JG


>From: N Smethurst <nick.smethurst at free.fr>
>To: "Jean-Guy LaRoche" <lost_bits1110 at hotmail.com>, vtkusers at vtk.org
>Subject: Re: [vtkusers] want to use vtk for high-performance?
>Date: Wed, 26 Nov 2003 18:55:16 +0100
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>A couple of comments:
>
>Use threads - one for the visualisation and one for the real-time stuff. I 
>did
>this with audio streams and it worked very well.
>
>A highly random thought: if a search routine in VTK isn't fast enough,
>couldn't you grab the array and access the memory directly? You may need to
>write your own sub class to do so.
>
>Le Mercredi 26 Novembre 2003 18:17, Jean-Guy LaRoche a écrit :
> > hi,
> > i would like to use vtk for an application that requires real-time
> > computing i want to use vtk for visualization, however i also need to be
> > able to do computationally expensive routines such as point searches of
> > 1000000 pts/second lets say (for which i have the code in c++).   
>However
> > if i incorporate this with vtk - i'm afraid that speed may drammatically 
>be
> > affected.. so how can i incorporate portions of c++ code which run very
> > fast into vtk, with minimal affect to the original speed of the c++ 
>code..?
> > (is this where wrapping comes in? note: so far i'm using vtk with VC++ 
>6.0)
> > thanks
> > raj
>

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