.TH CSURFACE
 6 "IRIT Version 6.0" 
.SH NAME
CSURFACE



 CurveType CSURFACE( SurfaceType Srf, ConstantType Direction,
                                                          NumericType Param )

Extract an isoparametric curve out of Srf in the specified
Direction (ROW or COL) at the specified parameter value Param.
Param must be contained in the parametric domain of Srf in
Direction direction.
The returned curve is in the surface Srf.

Example:

    Crv = CSURFACE( Srf, COL, 0.45 ); 

extracts an isoparametric curve in the COLumn direction at the parameter
value of 0.15 from surface Srf. See also CMESH, COMPOSE.