The EvaluateUVPt command reports the u- and v-coordinates of a selected location on a surface.


1. Select a surface to evaluate.
2. Pick a point to evaluate on the surface.

Note: When you select a polysurface, Rhino calculates the result for the component surface at the location you pick. If the surface is trimmed, Rhino uses the untrimmed surface.

Command-line options


Creates a point object on the surface.



The u- and v-parameter ranges are scaled so that the output values are between zero and one (rather than using the real parameter value).

This is useful when you want to know the percentage along parameter space of the point you pick without having to calculate it based on the domain of the surface.


The unscaled u- and v-parameter values are given.

See: Domain.

See also

Analyze objects

Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015