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.

