[vtkusers] setValue of vtkContourFilter

[Saket Jalan]

i m not still clear with what i want....

Actually i have some vtk structured point data sets, and i am trying to
generate the isosurface in which i m using contour filter.
in that i m setting the value of a single contour. My question is how to
decide what would be the value of this variable acc to data set?
Like for one vtk file i found it works when it is 60,,,for second one it
works for 92.....
So how to decide using the program (the source code) the value ?


On Wed, Jun 24, 2009 at 12:36 AM, Gerrick Bivins <
gbivins at objectreservoir.com> wrote:

>  Oh. You’re probably over thinking it. No worries! It’s not very clear in
> the docs.
> So for instance, lets say you want to generate 1 contour with a value of
> 100.
> The call would  look like this:
>     contour->SetValue(0, 100);
>
> If you wanted to change the value of this contour to 200 your call would be
> like this:
>     contour->SetValue(0, 200);
>
> Now if you wanted to generate another contour at 50 and keep the contour at
> 200 (thus totaling 2 contours) , after making the previous call you would
> add this:
>
>    contour->SetValue(1,50);
>
> So in summary, if you just want one contour the contour number is always 0.
> If you want more than one value the contour number is assigned by you and is
> <= total number of contours.
>  Gerrick
>
>
>
>
> On 6/23/09 1:59 PM, "Saket Jalan" <saaketjalan at gmail.com> wrote:
>
> Thanks for replying...
>
> I m still not able to find out the value of a contour number,,,plss help
> i m new to vtk...
>
> Thanks
>
> On Tue, Jun 23, 2009 at 6:33 PM, Gerrick Bivins <
> gbivins at objectreservoir.com> wrote:
>
> Hi Saket,
> In that method:
>  int “i” ==> the contour number
>  double v ==> value of contour number “i”
>
> This is so that you can supply more than one contour value to the contour
> filter.
> Gerrick
>
>
> On 6/22/09 7:01 PM, "Saket Jalan" <saaketjalan at gmail.com <
> http://saaketjalan@gmail.com> > wrote:
>
> hii...
>
> the class vtkContourFilter.h contains a method called
>
> SetValue(int i, double v);
>
> Anyone please tell me how to decide the value of v while using this
> filter.....
>
> Thanks
>
>
>
>


-- 
Saket



-- 
Saket
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