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-
- _G_r_a_p_h_i_c_a_l _I_n_p_u_t
-
- locator(n=1)
-
- _D_e_s_c_r_i_p_t_i_o_n:
-
- locator reads the position of the graphics cursor when
- the (first) mouse button is pressed. Unless the pro-
- cess is terminated prematurely by the user (see below)
- at most n positions are determined.
-
- The input process can be terminated prematurely by
- pressing any mouse button other than the first, or by
- clicking outside the graphics window.
-
- _V_a_l_u_e:
-
- A list containing x and y components which are the
- coordinates of the identified points.
-
-