[osg-users] how to draw a half line?

Robert Osfield robert.osfield at gmail.com
Mon Mar 23 13:05:17 PDT 2009


Hi Cory,

I have never tried it but you might be able to experiment with a Vec4Array
for coordinates and set the w value to 0, and the xyz to the direction
vector.

Robert.

On Mon, Mar 23, 2009 at 7:06 PM, Cory Riddell <cory at codeware.com> wrote:

> Right now I'm drawing some line segments like this:
>  osg::Geometry* geo = ...;
>  // define some vertices
>  ...
>  // draw lines
>  geo->setVertexArray(vertices);
>  geo->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINES, 0,
> qty));
>
> Is there a way to draw a line that goes off to infinity in one direction?
>
> Cory Riddell
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> osg-users at lists.openscenegraph.org
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