OdDbNurbSurface::evaluate Method (double, double, int, OdGePoint3d&, OdGeVector3dArray&)
Syntax
C++
OdResult evaluate(double dU, double dV, int iDerivDegree, OdGePoint3d& point, OdGeVector3dArray& derivatives) const;
Description
DescriptionEvaluates the position and an arbitrary number of derivatives of the surface at the specified parameter value (u, v).
Parameters|
Parameters |
Description |
|
dU |
[in] u direction parameter. |
|
dV |
[in] v direction parameter. |
|
iDerivDegree |
[in] The degree of derivatives to evaluate. |
|
point |
[out] A passed-in parameter for returning the evaluated position on the surface. |
|
derivatives |
[out] A passed-in parameter for returning derivatives array of vectors, in the order of uDeriv, vDeriv, uuDeriv, uvDeriv, vvDeriv. |
ReturnsReturns eOk if evaluation is successfully done. If the surface doesn't contain any NURBS information, returns eFail. If the u or v value is out of range, returns eOutOfRange.
RemarksThis method is implemented only for Spatial modeler and returns eNotImplementedYet status for other modelers.
Links