splinepy.microstructure.tiles.hollow_octagon_extrude.HollowOctagonExtrude.closing_tile#

HollowOctagonExtrude.closing_tile(parameters=None, parameter_sensitivities=None, contact_length=0.2, closure=None)[source]#

Create a closing tile to match with closed surface.

Parameters:

  • parameters (np.ndarray(1, 1)) – One evaluation point with one parameter is used. This parameter specifies the distance from the center to the inner edge, where the value must be between 0.01 and 0.49.

  • parameter_sensitivities (np.ndarray) – Describes the parameter sensitivities with respect to some design variable. In case the design variables directly apply to the parameter itself, they evaluate as delta_ij

  • closure (int) – parametric dimension that needs to be closed. Positive values mean that minimum parametric dimension is requested. That means, i.e. -2 closes the tile at maximum z-coordinate. (must currently be either -2 or 2)

  • contact_length (float) – the length of the wall that contacts the other microstructure

Returns:

  • spline_list (list)

  • derivatives (list<list<splines>> / None)