[vtkusers] how to get the details about the object created by vtk sources?

[Shriram Iyer]

Toron,

I'm not quite sure what you are trying to do here. If you just want to the
location of
each vertex in the cone, you can use following code.

vtkPoints* points = vtkPoints::New();
points = cone->GetOutput()->GetPoints();

for (vtkIdType i = 0; i < points->GetNumberOfPoints(); i++)
{
  double Pt[3];
  points->GetPoint(i, Pt);
  // Pt will now have the x, y, z coordinates of vertex i.
 ...
}

HTH.
Shriram

On 10/22/07, Toron J. <ji_wi at yahoo.com> wrote:
>
> Thanks, Shriram.
>
> I do know how to read 'cone->GetOutput()->GetPoints()' you suggested. So I
> tired to add the below codes.
> -------------------------------------------------------------------------
>   vtkPoints *points = vtkPoints::New();
>     points = cone->GetOutput()->GetPoints();
>
>   vtkCellArray *indexes = vtkCellArray::New();
>     indexes = cone->GetOutput()->GetPoints();
> ------------------------------------------------------------------------
> They did work. Could you correct them or let me know any example like
> this?
>
> Toron
>
>
>
>
>
> *Shriram Iyer <shriram.uc at gmail.com>* wrote:
>
> Use cone->GetOutput()->GetPoints() to get the vertices.
>
> Shriram
>
> On 10/22/07, Toron J. <ji_wi at yahoo.com > wrote:
> >
> > Hi All,
> >
> > I used the following codes to build a simple cone.
> > ---------------------------------------------------------------------------------------
> >
> >   vtkConeSource *cone = vtkConeSource::New();
> >       cone->SetHeight( 3.0 );
> >       cone->SetRadius( 1.0 );
> >       cone->SetResolution( 6 );
> >
> >   vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
> >       coneMapper->SetInput( cone->GetOutput() );
> >
> > --------------------------------------------------------------------------------------
> > Does any one can help me to know how to get the position (x,y,z) of each
> > vertex and the rendering index?      Thanks in advance!
> >
> > Toron
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