normals Can't create normals on straight poly line

[SteveNi]

Hi

I have a straigth line, created by the line sop, and I want to create some Normals for its points.

I tried by typing:

v@N = @N

in a wrangle node, or by using the poly frame sop, now this would normally work, but it seems like the normals cant be created if the curve is completly straigth, those methods works only if the curve has some kind of curvature (not straigth).

 

Why?

[Sepu]

The polyframe works just fine, here a least. 

[SteveNi]

Quote

The polyframe works just fine, here a least. 

Did I did something wrong?

[dimovfx]

you can set them by typing

v@N = set(1,0,0);

or in polyFrame use "Tangent name"=N instead of "Normal name"

[SteveNi]

Thanks

I solved by writing:

v@N = @N;

if(@N == {0,0,0})
{
	@N = {1,0,0};
}

This way the if statements executes only when I have a straigth curve.

[acey195]

sometimes it is also simply a display issue, often you have to move the render flag around once, when you enable point normal visualization.