Hi I need to obtain the velocity at a given point inside a udf. How can this be done? Thanks

You may loop over the cells, find their centroid with C_CENTROID and localize with an if clause the point you need.

Regards, ap

But how can I know if a certain point is contained in a cell? The C_CENTROID macro gives the coordinates of the centroid of the cell, but the point I have may not be exactly this, but still contained inside the cell. Isn't there a macro to determine if a point is inside a cell?