/// <summary>
///
/// </summary>
/// <param name="contextSurface"></param>
/// <param name="u"></param>
/// <param name="v"></param>
/// <returns></returns>
public static DSSurfaceCurvature BySurfaceParameters(DSSurface contextSurface, double u, double v)
{
if (contextSurface == null)
{
return(null);
}
ISurfaceEntity host = contextSurface.GetSurfaceEntity();
if (host == null)
{
return(null);
}
ICoordinateSystemEntity coordinateSystemEntity = host.CurvatureAtParameter(u, v);
if (null != coordinateSystemEntity)
{
DSSurfaceCurvature surfCurv = new DSSurfaceCurvature(contextSurface, u, v, coordinateSystemEntity);
return(surfCurv);
}
return(null);
}
/// <summary>
/// Returns the surface curvature at given U, V parameter
/// </summary>
/// <param name="u"></param>
/// <param name="v"></param>
/// <returns></returns>
public DSSurfaceCurvature CurvatureAtParameter(double u, double v)
{
return(DSSurfaceCurvature.BySurfaceParameters(this, u, v));
}
/// <summary>
///
/// </summary>
/// <param name="contextSurface"></param>
/// <param name="u"></param>
/// <param name="v"></param>
/// <returns></returns>
public static DSSurfaceCurvature BySurfaceParameters(DSSurface contextSurface, double u, double v)
{
if (contextSurface == null)
return null;
ISurfaceEntity host = contextSurface.GetSurfaceEntity();
if (host == null)
return null;
ICoordinateSystemEntity coordinateSystemEntity = host.CurvatureAtParameter(u, v);
if (null != coordinateSystemEntity)
{
DSSurfaceCurvature surfCurv = new DSSurfaceCurvature(contextSurface, u, v, coordinateSystemEntity);
return surfCurv;
}
return null;
}