[vtkusers] how can I do picking on the vtkLineSource ?

[michiel mentink]

how about looking at this example:

http://www.itk.org/Wiki/VTK/Examples/Picking_a_pixel

Michael

On Mon, Jan 18, 2010 at 5:03 PM, orobin <Olivier.Robin at bioclinica.com>wrote:

>
> Hello,
>
> I have a vtkRender, where I draw some images.
> above this image, I draw some lines (vtkLineSource), or sometime
> vtkPolydata
> (to do some cube, polylines)
>
> I need to get mouse event when the user click on the line, or the polydata,
> when the mous is over the line, when the user release the mouse on the line
> etc...
>
> I have tried to use the vtkPropPicker, and vtkCellPicker, but it doens't
> work properly for me, because it detect an actor.
> and then, it detect something like a big square where my line is in.
>
> I need to be precis, and just be called when the mouse pointer is on one of
> the several pixels which build the line.
>
> How can I do ? is there some object which can be used to pick lines,
> sphere,
> cone, vtkpolydata ???
>
> thnak you for any help, I don't find answer in the book of kitware.
>
> Best regards
> Olivier
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