Function IGetBSurfParamsSize3( _
   ByVal WantCubic As Boolean, _
   ByVal WantNonRational As Boolean, _
   ByRef Range As Double, _
   ByVal Tolerance As Double, _
   ByRef Sense As Boolean _
) As Integer

Dim instance As ISurface
Dim WantCubic As Boolean
Dim WantNonRational As Boolean
Dim Range As Double
Dim Tolerance As Double
Dim Sense As Boolean
Dim value As Integer
 
value = instance.IGetBSurfParamsSize3(WantCubic, WantNonRational, Range, Tolerance, Sense)

int IGetBSurfParamsSize3( 
   bool WantCubic,
   bool WantNonRational,
   ref double Range,
   double Tolerance,
   out bool Sense
)

int IGetBSurfParamsSize3( 
&   bool WantCubic,
&   bool WantNonRational,
&   double% Range,
&   double Tolerance,
&   [Out] bool Sense
) 

Parameters

WantCubic

True for surface to be a cubic, false for not

WantNonRational

True if non-rational is needed, false if not; specifying true converts any surface type to a non-rational Bsurface; if you specify true, then you should only use this method for surfaces that are Bsurface or blend surface; otherwise, the underlying call is not made and the values returned from this are not initialized or contain the values from the last call

Range

Array of 4 doubles describing the U,V Range

Tolerance

Tolerance, in meters, between the approximated b-spline surface and the underlying surface; the default value is 0.01 and should generally be reduced to the tolerance desired

Sense

Approximated b-spline surface is not always in the same direction as the original surface; if sense is true, then the underlying surface and the b-spline surface are in the same direction

Return Value

Size of the data set

Range contains the following values that can be obtained using ISurface::Parameterization or ISurface::IParameterization:

• Range[0] & Range[2] are the lower bounds of the U & V surface parameters respectively.

• Range[1] & Range[3] are the upper bounds of the U & V surface parameters respectively.