| 摘要 |
<p>Disclosed is an electronic blackboard device (1) which, when displaying a map (M), establishes a scroll selection region (A1) and displays a semi-transparent image (C1) having the same configuration as the scroll selection region (A1) so that the semi-transparent image (C1) is superimposed on the scroll selection region (A1). The electronic blackboard device (1) recognizes the pointing path (Ta) traveled by a finger (F) when the finger (F) is used to point to the display surface (31). When the pointing start point (Pb) of the pointing path (Ta) is located within the scroll selection region (A1), the electronic blackboard device (1) scrolls the map (M), and when the pointing start point (Pb) is located within an image selection region (A2), the electronic blackboard device (1) superimposes on the map (M) a curve of the same shape as the pointing path (Ta).</p> |
