METHOD FOR DELETING DRAWN IMAGE AND DISPLAY DEVICE

To provide a method for deleting a drawn image that can reduce the number of coordinate rows performing a series of deleting processing by simple processing, and also can reduce the time required to delete a drawn image without changing the shape of a stroke for the deleting processing.SOLUTION: A c...

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Bibliographic Details
Main Author MATSUDA YUKIO
Format Patent
LanguageEnglish
Japanese
Published 25.07.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:To provide a method for deleting a drawn image that can reduce the number of coordinate rows performing a series of deleting processing by simple processing, and also can reduce the time required to delete a drawn image without changing the shape of a stroke for the deleting processing.SOLUTION: A controller (103) includes: a display controller (104) and an input receiver (105) in an electronic blackboard (100), which employs a method for deleting a drawn image for deleting along sample points of coordinate rows by a series of deletion operations obtained by performing sampling of coordinates moving in a part or all of a drawn image (113) drawn by a pen (112) in a display (101) according to the time sequence when a drawn image is deleted by the pen (112) also serving as an eraser.SELECTED DRAWING: Figure 3 【課題】簡単な処理により、一連の消去処理を行う座標列の点数を削減して、消去処理を行うストロールの形状を変化させることなく、描画像の消去処理にかかる時間を短縮することができる描画像消去方法を提供する。【解決手段】ディスプレイ（１０１）中にペン（１１２）により描画された描画像（１１３）の一部または全てを消しゴムとして機能するように設定されたペン（１１２）による描画像消去操作時に時系列に基づいて移動する座標のサンプリングを行って得られる一連の消去操作による座標列の標本点に沿って消去する描画像消去方法が採用された電子黒板（１００）において、制御部（１０３）の構成として、表示制御部（１０４）、入力受付部（１０５）を備えることを特徴とする。【選択図】図３
Bibliography:Application Number: JP20190036094