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ReverseEvaluate Method (ISurface)

Gets the UV parameters at the specified location, which must be on the surface.

.NET Syntax

Visual Basic (Declaration) 
Function ReverseEvaluate( _
   ByVal PositionX As Double, _
   ByVal PositionY As Double, _
   ByVal PositionZ As Double _
) As Object
Visual Basic (Usage) 
Dim instance As ISurface
Dim PositionX As Double
Dim PositionY As Double
Dim PositionZ As Double
Dim value As Object
 
value = instance.ReverseEvaluate(PositionX, PositionY, PositionZ)
C# 
object ReverseEvaluate( 
   double PositionX,
   double PositionY,
   double PositionZ
)
C++/CLI 
Object^ ReverseEvaluate( 
&   double PositionX,
&   double PositionY,
&   double PositionZ
) 

Parameters

PositionX

X position on the surface

PositionY

Y position on the surface

PositionZ

Z position on the surface

Return Value

Array of doubles describing the UV parameters

Remarks

At parametric singularities, such as sphere poles, the non-degenerate parameter is returned as the lowest value in its range. To determine the UV range, call ISurface::Parameterization or ISurface::IParameterization.

IFace2::ReverseEvaluate and IFace2::IReverseEvaluate return corrected UV parameters for periodic surfaces; thus, you should use either of these methods when dealing with periodic surfaces.

 

See Also



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