viz.vertex coordinates

[lilio]

If I create the vertex with this command:

point = viz.endlayer(viz.WORLD)

then the vertex will be placed at another position like the mouse is.

But if I use

point = viz.endlayer(viz.SCREEN)

then the vertex will be placed at the mouseclick position.

But I don't want to place the vertex at the screen. It should be placed in the world at the mouseposition and at 0 on the z-axis.

I hope somebody understand my problem.

I only want to create a vertex in the world (not at the screen), but exactly at the mouseposition.

Is this possible?