The present invention aims at easy and efficient selection of bands present on
a lane.
A region 502 is set on a display of a lane 503 having a plurality
of bands 504 to 508, based on an input cursor 501 of a pointing
unit. The bands 506 to 508 within the region 502 are displayed
to be in a selection candidate state. The size of the region 502 may be
altered by an input of a predetermined key of a keyboard. Along with the size alteration
of the region 502, bands to be displayed in the selection candidate state
also change. By selecting with the mouse button, a band of interest is accurately
selected from the bands in the selection candidate state.
