Hello,

It seems there is a lot of documentation about how to use the calculator to produce a vector from scalars. Is it possible to get a component of a vector as a scalar in the calculator filter? I want to get the z value of coords so I can color by it, but I also have other situations with non coordinate vectors where I want to get the ith element as a scalar.

Thanks, --John.

The **Calculator** filter exposes all components of a coodinates and input vectors under the **Scalars** menu. Just pick the one of interest e.g. *Normals_Z* as expression on the **Calculator** applied to a Sphere source will extract the z-value for the normals.