aRTtheme                 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)
     attribute restrictions. It can select the objects from the  ids
     resulting from a spatial query.

     Themes in TerraLib can have visual aspects, as colors and lines
     styles. These configurations are not used when an 'aRTtheme'
     object is created, besause it can be used only for data
     processing. But there are functions to do so, 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 calling 'createTheme' or 'openTheme',
     from 'aRTlayer'.  'openTheme' is a function of class 'aRTdb' too.

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

     Class 'aRTcomponent', directly.

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


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

     _g_e_t_D_a_t_a Returns all attributes and geometry of the theme.

     _g_e_t_V_i_s_u_a_l Returns the visual configuration of the theme.

     _o_p_e_n_Q_u_e_r_i_e_r: Opens a query over the theme.

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

     _s_e_t_V_i_s_u_a_l Sets the visual of the theme.

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

     Marcos Aurelio Carrero, Pedro Ribeiro de Andrade

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

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

