This command allows to get the coordinates of the mouse pointer position. Read the message on the screen who to select a point and how to exit, since it is device dependent.
The values are printed on the screen and stored in the res[i] array. The number of values stored is res[0]. For 2d data sets res[i] contains the x-value and res[i+1] the y-value for the selected point i. For 3d data sets, 5 numbers are stored for each point: x = res[i], y = res[i+1] and the values of the nearest grid point gx = res[i+2], gy = res[i+3] and gz = res[i+4].