[vtkusers] How can i point a 3D point by cylinder source

[Alex Malyushytskyy]

>From VTK documerntation:
"vtkCylinderSource creates a polygonal cylinder centered at Center; The
axis of the cylinder is aligned along the global y-axis."

So to achieve what you want translate output of vtkCylinderSource (which is
polidata) height/2 along y-axis which will place beginning of the cylinder
at origin, then rotate it about x (90 degrees ) to have axis of the
cylinder aligned with  Z axis.

You may look at

vtkTransformPolyDataFilter and  vtkTransform

There some examples on wiki pages:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/OrientedArrow

Alex


On Sun, May 12, 2013 at 10:42 PM, Arindam <arindam at triassicsolutions.com>wrote:

>  Hi,
>
> I am showing my 3D point with 3d glyphing with spare source. And i want to
> point the points by cylinder source.But by each translation the point is
> showing at the middle of cylinder source.But i want it to come at the tip
> and it should point vertically .Please help me for doing this.
>
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