Polygon-class               package:sp               R Documentation

_C_l_a_s_s "_P_o_l_y_g_o_n"

_D_e_s_c_r_i_p_t_i_o_n:

     class for spatial polygon

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     Objects can be created by calls to the function 'Polygon'

_S_l_o_t_s:

     '_r_i_n_g_D_i_r': Object of class '"integer"'; the ring direction of the
          ring coordinates, holes are expected to be anti-clockwise 

     '_l_a_b_p_t': Object of class '"numeric"'; an x, y coordinate pair
          forming the label point of the ring 

     '_a_r_e_a': Object of class '"numeric"'; the area of the ring 

     '_h_o_l_e': Object of class '"logical"'; does the ring seem to be a
          hole 

     '_c_o_o_r_d_s': Object of class '"matrix"'; coordinates of the polygon;
          first point should equal the last point 

_E_x_t_e_n_d_s:

     Class '"Line"', directly.

_M_e_t_h_o_d_s:

     No methods defined with class "Polygon" in the signature.

_N_o_t_e:

_A_u_t_h_o_r(_s):

     Roger Bivand

_R_e_f_e_r_e_n_c_e_s:

_S_e_e _A_l_s_o:

     Polygons-class, SpatialPolygons-class

_E_x_a_m_p_l_e_s:

