[vtkusers] Re: Point representation with line data pb

[Goodwin Lawlor]

Stephane PLOIX wrote:
> Hi,
> 
> I am trying to draw some broken line and I would like to show the points 
> where the line is broken. The pb is that the 
> vtkProperty::SetRepresentationToPoints doesn't seem to change anything 
> when the data is made of lines.
> 
> Here is a typical code showing the pb (I use the vtkEarthSource here. 
> The output is made of lines when the Outline flag is set):

Hi Stephane,

vtkProperty::SetRepresentationToPoints is only for 2d cells such as 
triangles, triangle strips, and quads.

There is a trick to visualize a line's points as vertices: pass the line 
vtkPolyData through a vtkMaskPoints filter with GenerateVerticesOn() and 
SetOnRatio(1).

hth

Goodwin