aRTtheme-class              package:aRT              R Documentation

_C_l_a_s_s "_a_R_T_t_h_e_m_e"

_D_e_s_c_r_i_p_t_i_o_n:

     Class that enables database queries with temporal and (or)
     attributes restrictions. It can be created using the results of a
     spatial query, passing the ids. Temporal queries are done creating
     an aRTquerier object from this object.

     Themes in TerraLib have also visual aspects, as colors and lines
     styles. These configurations are not used when an 'aRTtheme' is
     created, besause this object can be used only for processing. But
     there are functions to do this, for example 'setVisual' and
     'setVisible'.

_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 of the form 'new("aRTtheme",
     aRTlayer, themename)'.

_S_l_o_t_s:

     '_p_o_i_n_t_e_r': An external pointer to a TerraLib object. DO NOT change
          it!

_E_x_t_e_n_d_s:

     Class 'aRTcomponent', directly.

_M_e_t_h_o_d_s:

     _g_e_t_A_t_t_r_i_b_u_t_e_s: Do a query and return all.

     _g_e_t_B_o_x: Returns the bounding box.

     _g_e_t_D_a_t_a: Returns all attributes and geometry of a layer.

     _g_e_t_G_e_o_m_e_t_r_y: Returns all the geometry associated with the object.

     _i_n_i_t_i_a_l_i_z_e: Initializer of aRTtheme class.

     _s_e_t_V_i_s_u_a_l: Sets the colors associated to a theme's geometry.

     _s_e_t_V_i_s_i_b_l_e: Changes the visibility of a theme (visible or not).

_A_u_t_h_o_r(_s):

     Marcos Aurelio Carrero and Pedro Ribeiro de Andrade Neto

_R_e_f_e_r_e_n_c_e_s:

     <URL: http://www.est.ufpr.br/aRT>

_S_e_e _A_l_s_o:

     See 'aRTtheme-METHOD' for a method of this class or
     'CLASSNAME-class' for links to other classes.

