UF_CURVE_genconic_s (查看源代码)
 
定义在: uf_curve.h
 
也被称为：
 
概述
The matrix defines the orientation of the plane in which the conic lies,
in the same manner as the matrix for an arc. The X axis of the matrix
determines the orientation of angle zero. The type of the conic must
be determined from the coefficients. The points select the branch of
the hyperbola and determine the parameterization sense.


Data Members

matrix_tag
tag_t （tag_t类型）
tag of matrix defining orientation, or
construction space

coefficients [ 6 ]
double
the coefficients of the conic in general
form, a through f

start_pt [ 3 ]
double
starting point, in construction space

end_pt [ 3 ]
double
ending point, in construction space