Hi there,

Just wondering if anyone could help me here, I'm just trying to constrain a null to a point in my scene.

Thanks,
Pete

Move the null to the location of the point in world space. Then at the object level make the null a child of the object with the point by connecting them in the network view. Make sure to activate keep position when parenting on the null before you make the parenting connection.

The snapping tools can be handy in these situations…

http://www.sidefx.com/docs/houdini15.0/expressions/point [sidefx.com]

try the Rivet or Sticky tools

Hey thanks for all the help!
Never noticed that bout the snap tool, that's super handy!

So how would I go about using the expression - point(surface_node, point_number, attribute, index)
Would I put that directly into the X,Y and Z fields of my null's translate node?

Thanks
Pete

Peteski ,

Sorry but my answer is partially wrong because the point expression only give you the local position of the point.
As Arctor suggest , the rivet obj is your tool (Sticky implies UVs)

PS:you can always create an attribute in your object that convert P to World Space (named PW ?) and use that attribute in your point expression.
This can be done ,for example, with a transform VOP(Spaces: Object to World)

So how would I go about using the expression - point(surface_node, point_number, attribute, index)
Would I put that directly into the X,Y and Z fields of my null's translate node?

yes, exactly.

Cool, thanks guys!