API Reference > FacetModeler Namespace > Classes > Contour3D Class > Contour3D Methods > Contour3D::getTangent3D Method
Contour3D::getTangent3D Method
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Parameters |
Description |
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double dParam |
[in] Point parameter. |
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OdGeVector3d& vTangent3D |
[out] Calculated tangent vector at dParam. |
eOk if the tangent calculation succeeded, or a corresponding error type otherwise.
Gets a 3D tangent vector at the specified parameter.
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