PK_LBALL_blend_t

typedef int PK_LBALL_blend_t;

Used in:

PK_LATTICE_create_by_graph_o_t
PK_LBALL_ask_blend_r_t

This datatype specifies whether the lattice is blended and, if so, how each
lball's blend radius is calculated from the blend size.

PK_LBALL_blend_t can take the values:

    PK_LBALL_blend_none_c       There are no blends and the blend size has no
                                effect.
    PK_LBALL_blend_absolute_c   The blend radius is equal to the blend size.
    PK_LBALL_blend_relative_c   The blend radius is the product of the lball
                                radius and the blend size.

If the lattice is blended, blends are created between ltopols using a weighted
average of blend radii of ltopols in the vicinity of the blend.  An lrod's
blend radius is calculated by interpolating the blend radius of its two lballs.