Handwriting erasing method, device and equipment

Abstract

The invention provides a handwriting erasing method, device and equipment, and the method comprises the steps: obtaining the target block information of at least one target block when an erasing operation is executed in a specified drawing region, enabling the specified drawing region to be divided into a plurality of blocks in advance, and enabling each block to comprise a plurality of position points which can form handwriting forming points; and when at least one piece of target block information exists in the recorded handwriting information set corresponding to the first handwriting, erasing handwriting composition points in the target block in the first handwriting, wherein the first handwriting is drawn in a specified drawing area, and the handwriting information set is used for recording block information of a block where each handwriting forming point in the first handwriting is located. The handwriting erasing method, device and the equipment can improve the processing efficiency.

Description

technical field [0001] The present invention relates to the technical field of drawing, in particular to a handwriting erasing method, device and equipment. Background technique [0002] In some drawing software such as electronic whiteboards, handwriting can be drawn or erased. Handwriting can be patterns, characters, etc. In some cases, when the erase tool erases, it may only erase part of the handwriting, such as figure 1 and figure 2 , figure 1 It is the handwriting before erasure, figure 2 yes figure 1 The handwriting in is erased. [0003] In a related way, for each handwriting composition point on the handwriting, traverse each position point in the area passed by the erasing tool, check whether the handwriting composition point and the traversed position point are in the same position, if they are the same, the handwriting The constituent points need to be erased to determine the erased handwriting when the traversal is complete. [0004] In the above metho...

AI Technical Summary

Problems solved by technology

[0004] In the above method, the area passed by the erasing tool is traversed in units of the minimum granularity of the specified drawing area—the position point. The amount of data traversed each time is large, and the processing efficiency is low.

Especially when the wiping track is very long, the number of position points in the area passed by the wiping tool will be large, and the processing time will be very long, which may reach tens of seconds or even a few minutes, seriously affecting the user experience

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