API Reference > Other Classes > OdModelerGeometry Class > OdModelerGeometry Methods > OdModelerGeometry::modifyPositionAndTangent Method
OdModelerGeometry::modifyPositionAndTangent Method
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Syntax
C++
virtual OdResult modifyPositionAndTangent(double dU, double dV, const OdGePoint3d& point, const OdGeVector3d* uDeriv, const OdGeVector3d* vDeriv) = 0;
Parameters
Parameters 
Description 
double dU 
[in] u parameter.  
double dV 
[in] v parameter.  
const OdGePoint3d& point 
[in] A new location of the point on the surface.  
const OdGeVector3d* uDeriv 
[in] The tangent vector in the u direction.  
const OdGeVector3d* vDeriv 
[in] The tangent vector in the v direction.
 
Returns

Returns eOk if successful or an appropriate error code in the other case.

Description

Adjusts the location and tangent of a point on this ModelerGeometry object with the specified parameter ([u, v]). The local control points are adjusted accordingly. If the pointer uDeriv and vDeriv are equal to NULL, then only the location of the point is adjusted. 

 

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