OdDgBSplineSurface::evaluate Method (double, double, OdGePoint3d&, OdGeVector3d&, OdGeVector3d&)
Syntax
C++
OdResult evaluate(double dU, double dV, OdGePoint3d& pos, OdGeVector3d& uDeriv, OdGeVector3d& vDeriv) const;
Description
DescriptionEvaluates the position and first derivatives on the NURBS surface at the specified parameter value (u, v).
Parameters|
Parameters |
Description |
|
dU |
[in] u direction parameter. |
|
dV |
[in] v direction parameter. |
|
pos |
[out] A passed-in parameter for returning the evaluated position on the surface. |
|
uDeriv |
[out] A passed-in parameter for returning the first derivative with respect to u. |
|
vDeriv |
[out] A passed-in parameter for returning the first derivative with respect to v. |
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