sfepy.mesh.splinebox module

class sfepy.mesh.splinebox.SplineBox(bbox, coors, name='spbox', **kwargs)

B-spline geometry parametrization. Geometry can be modified by moving spline control points.

static augknt(knots, k, mults=1)

change_shape(cpoint, val)

Change shape of spline parametrization.

Parameters :

cpoint : list

The indices of the spline control point.

val : array

Displacement.

static create_spb(bbox, coors, nsg=None)

dvelocity(cpoint, dir)

Evaluate derivative of spline in a given control point and direction.

Parameters :

cpoint : list

The indices of the spline control point.

dir : array

The directional vector.

Returns :

dvel : array

The design velocity field.

evaluate(cp_coors=None)

Evaluate SplineBox.

Returns :

coors : array

The coordinates corresponding to the actual spline control points position.

cp_coors : array

If is not None, use as control points cooardinates.

get_control_points(init=False)

Get spline control points coordinates.

static mmax(x, y)

set_control_points(cpt_coors, add=False)

Set spline control points position.

Parameters :

cpt_coors : array

The coordinates of the spline control points.

add : bool

If True, coors += cpt_coors

static spcol(knots, k, tau)

static spsorted(meshsites, sites)

write_vtk(filename)