PK_EDGE_convexity_t

typedef int PK_EDGE_convexity_t;

Used in:

PK_EDGE_ask_convexity

PK_EDGE_convexity_t has the values:
PK_EDGE_convexity_smooth_flat_c : The face normals are parallel and
                                  both surfaces have zero curvatures.
PK_EDGE_convexity_smooth_cvx_c  : The surface normals are parallel and both
                                  curvatures are positive, or one positive
                                  curvature and one zero.
PK_EDGE_convexity_smooth_ccv_c  : The surface normals are parallel and both
                                  curvatures are negative, or one negative
                                  curvature and one zero.
PK_EDGE_convexity_smooth_inf_c  : The surface normals are parallel and the
                                  curvatures are opposite in sign.
PK_EDGE_convexity_smooth_var_c  : The surface normals are parallel and the
                                  signs of curvatures vary along the edge.
PK_EDGE_convexity_knife_cvx_c   : The surface normals are anti-parallel and the
                                  sum of the curvatures is positive or zero.
PK_EDGE_convexity_knife_ccv_c   : The surface normals are anti-parallel and the
                                  sum of the curvatures is negative or zero.
PK_EDGE_convexity_convex_c      : The edge is convex.
PK_EDGE_convexity_concave_c     : The edge is concave.
PK_EDGE_convexity_variable_c    : The convexity varies along the edge.